Interaction folder is finalized with adjustable box and tested for rotating drum

src/Interaction/CMakeLists.txt

@@ -1,5 +1,10 @@
 
 set(SourceFiles 
+contactSearch/methods/cellBased/NBS/mapperNBS.cpp
+contactSearch/methods/cellBased/NBS/mapperNBSKernels.cpp
+contactSearch/methods/cellBased/NBS/NBSLevel0.cpp
+contactSearch/methods/cellBased/NBS/NBS.cpp
+contactSearch/methods/cellBased/NBS/cellsWallLevel0.cpp
 contactSearch/contactSearch/contactSearch.cpp
 contactSearch/ContactSearch/ContactSearchs.cpp
 interaction/interaction.cpp

src/Interaction/Models/contactForce/linearCF.hpp

@@ -133,8 +133,9 @@ protected:
 			return false;
 		}
 
-		realVector etha_n(nElem);
+		realVector etha_n("etha_n", nElem);
-		realVector etha_t(nElem);
+		realVector etha_t("etha_t", nElem);
+
 		ForAll(i , kn)
 		{
 			etha_n[i] = -2.0*log(en[i])*sqrt(kn[i])/
@@ -144,7 +145,7 @@ protected:
 					sqrt(pow(log(et[i]),2.0)+ pow(Pi,2.0));
 		}
 
-		Vector<linearProperties> prop(nElem);
+		Vector<linearProperties> prop("prop", nElem);
 		ForAll(i,kn)
 		{
 			prop[i] = {kn[i], kt[i], etha_n[i], etha_t[i], mu[i]};
@@ -219,10 +220,10 @@ public:
 	void contactForce
 	(
 		const real dt,
-		const int32 i,
+		const uint32 i,
-		const int32 j,
+		const uint32 j,
-		const int32 propId_i,
+		const uint32 propId_i,
-		const int32 propId_j,
+		const uint32 propId_j,
 		const real Ri,
 		const real Rj,
 		const real ovrlp_n,

src/Interaction/Models/contactForce/nonLinearCF.hpp

@@ -121,7 +121,7 @@ protected:
 		}
 
 
-		realVector etha_n(nElem);
+		realVector etha_n("etha_n",nElem);
 		
 		ForAll(i , en)
 		{
@@ -137,7 +137,7 @@ protected:
 
 		}
 
-		Vector<nonLinearProperties> prop(nElem);
+		Vector<nonLinearProperties> prop("prop",nElem);
 		ForAll(i,Yeff)
 		{
 			prop[i] = {Yeff[i], Geff[i], etha_n[i], mu[i]};
@@ -214,10 +214,10 @@ public:
 	void contactForce
 	(
 		const real dt,
-		const int32 i,
+		const uint32 i,
-		const int32 j,
+		const uint32 j,
-		const int32 propId_i,
+		const uint32 propId_i,
-		const int32 propId_j,
+		const uint32 propId_j,
 		const real Ri,
 		const real Rj,
 		const real ovrlp_n,

src/Interaction/Models/contactForce/nonLinearMod.hpp

@@ -121,7 +121,7 @@ protected:
 		}
 
 
-		Vector<nonLinearProperties> prop(nElem);
+		Vector<nonLinearProperties> prop("prop",nElem);
 		ForAll(i,Yeff)
 		{
 			prop[i] = {Yeff[i], Geff[i], etha_n[i], mu[i]};
@@ -198,10 +198,10 @@ public:
 	void contactForce
 	(
 		const real dt,
-		const int32 i,
+		const uint32 i,
-		const int32 j,
+		const uint32 j,
-		const int32 propId_i,
+		const uint32 propId_i,
-		const int32 propId_j,
+		const uint32 propId_j,
 		const real Ri,
 		const real Rj,
 		const real ovrlp_n,

src/Interaction/Models/rolling/normalRolling.hpp

@@ -76,10 +76,10 @@ public:
 	void rollingFriction
 	(
 		const real dt,
-		const int32 i,
+		const uint32 i,
-		const int32 j,
+		const uint32 j,
-		const int32 propId_i,
+		const uint32 propId_i,
-		const int32 propId_j,
+		const uint32 propId_j,
 		const real Ri,
 		const real Rj,
 		const realx3& wi,

src/Interaction/contactLists/sortedContactList.hpp

@@ -53,7 +53,7 @@ protected:
 
 	ViewType1D<ValueType,ExecutionSpace> 	values_;
 
-	int32 									size0_ = 0;
+	uint32 									size0_ = 0;
 
 	ViewType1D<PairType,ExecutionSpace> 	sortedPairs0_;
 
@@ -73,7 +73,7 @@ protected:
 	using rpReFillPairs = Kokkos::RangePolicy<
 		ExecutionSpace,
 		Kokkos::Schedule<Kokkos::Static>,
-		Kokkos::IndexType<int32>,
+		Kokkos::IndexType<uint32>,
 		TagReFillPairs>;
 
 public:
@@ -81,7 +81,7 @@ public:
 	TypeInfoNV("sortedContactList");
 
 
-	sortedContactList(int32 initialSize =1)
+	explicit sortedContactList(uint32 initialSize =1)
 	:
 		SortedPairs(initialSize),
 		values_("values", SortedPairs::capacity()),
@@ -114,31 +114,31 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	ValueType getValue(int32 idx)const
+	ValueType getValue(uint32 idx)const
 	{
 		return values_[idx];
 	}
 
 	INLINE_FUNCTION_HD
-	void setValue(int32 idx, const ValueType& val)const
+	void setValue(uint32 idx, const ValueType& val)const
 	{
 		values_[idx] = val;
 	}
 
 	INLINE_FUNCTION_HD
-	void operator()(TagReFillPairs, int32 idx)const
+	void operator()(TagReFillPairs, uint32 idx)const
 	{
 
-		auto searchLen = max(size0_/1000,10);
+		uint32 searchLen = max(size0_/1000u,10u);
-		auto start 	= max(0,idx-searchLen);
+		uint32 start 	= idx-min(searchLen,idx);
-		auto end 	= min(size0_,idx+searchLen);
+		uint32 end 	= min(size0_,idx+searchLen);
 		auto newPair = this->sortedPairs_[idx];
 		if(	auto idx0 = binarySearch(
 				sortedPairs0_,
 				start,
 				end,
 				newPair);
-				idx0>=0)
+				idx0!=-1)
 		{
 			values_[idx] = values0_[idx0];
 		}
@@ -147,7 +147,7 @@ public:
 			start, 
 			end,
 			newPair);
-			idx0>=0)
+			idx0!=-1)
 		{
 			values_[idx] = values0_[idx0];
 			

src/Interaction/contactLists/sortedPairs.hpp

@@ -52,24 +52,24 @@ public:
 	{
 		using PairType = typename sortedPairs::PairType;
 
-		int32 size_;
+		uint32 size_;
 
 		ViewType1D<PairType,ExecutionSpace> sortedParis_;
 
 		INLINE_FUNCTION_HD
-		int32 size()const { return size_; }
+		uint32 size()const { return size_; }
 
 		INLINE_FUNCTION_HD
-		int32 loopCount()const { return size_; }
+		uint32 loopCount()const { return size_; }
 
 		INLINE_FUNCTION_HD
-		bool isValid(int32 i)const { return i<size_; }
+		bool isValid(uint32 i)const { return i<size_; }
 
 		INLINE_FUNCTION_HD
-		PairType getPair(int i)const {	return sortedParis_[i];	}
+		PairType getPair(uint32 i)const {	return sortedParis_[i];	}
 
 		INLINE_FUNCTION_HD
-		bool getPair(int32 i, PairType& pair)const {
+		bool getPair(uint32 i, PairType& pair)const {
 			if(i<size_)	{
 				pair = sortedParis_[i];
 				return true;
@@ -85,22 +85,22 @@ public:
 protected:
 
 	/// size of pair list
-	int32 			size_ = 0;
+	uint32 			size_ = 0;
 
-	ViewType1D<int32,ExecutionSpace>		flags_;
+	ViewType1D<uint32,ExecutionSpace>		flags_;
 
 	ViewType1D<PairType,ExecutionSpace> 	sortedPairs_;
 
 	using rpFillFlag = Kokkos::RangePolicy<
 		ExecutionSpace,
 		Kokkos::Schedule<Kokkos::Static>,
-		Kokkos::IndexType<int32>,
+		Kokkos::IndexType<uint32>,
 		TagFillFlag	>;
 
 	using rpFillPairs = Kokkos::RangePolicy<
 		ExecutionSpace,
 		Kokkos::Schedule<Kokkos::Static>,
-		Kokkos::IndexType<int32>,
+		Kokkos::IndexType<uint32>,
 		TagFillPairs>;
 	
 public:
@@ -110,7 +110,7 @@ public:
 
 
 	// constructors
-	sortedPairs(int32 initialSize =1)
+	explicit sortedPairs(uint32 initialSize =1)
 	:
 		UnsortedPairs(initialSize),
 		flags_("flags_",UnsortedPairs::capacity()+1),
@@ -134,7 +134,7 @@ public:
 	//   return the pair at index idx
 	//   perform no check for size and existance
 	INLINE_FUNCTION_HD
-	PairType getPair(int32 idx)const
+	PairType getPair(uint32 idx)const
 	{
 		return sortedPairs_[idx];
 	}
@@ -142,7 +142,7 @@ public:
 	// - Device/host call
 	//   return the pair at index idx
 	INLINE_FUNCTION_HD
-	bool getPair(int32 idx, PairType& p)const
+	bool getPair(uint32 idx, PairType& p)const
 	{
 		if(isValid(idx))
 		{
@@ -156,7 +156,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	bool isValid(int32 idx)const
+	bool isValid(uint32 idx)const
 	{
 		return idx < size_;	
 	}
@@ -164,12 +164,12 @@ public:
 
 	//use this when the value of size_ is updated
 	INLINE_FUNCTION_H
-	int32 size()const
+	uint32 size()const
 	{
 		return size_;
 	}
 
-	int32 loopCount()const
+	uint32 loopCount()const
 	{
 		return size_;
 	}
@@ -189,7 +189,7 @@ public:
 	void prepareSorted()
 	{
 		// first check the size of flags_ 
-		int32 capacity = UnsortedPairs::capacity();
+		uint32 capacity = UnsortedPairs::capacity();
 
 		if( capacity+1 > flags_.size() )
 		{
@@ -218,7 +218,7 @@ public:
 		if( size_>sortedPairs_.size() )
 		{
 			// get more space to prevent reallocations in next iterations
-			int32 len = size_*1.1+1; 
+			uint32 len = size_*1.1+1; 
 			reallocNoInit(sortedPairs_, len);
 		}
 		
@@ -235,7 +235,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	void operator()(TagFillFlag, int32 i)const
+	void operator()(TagFillFlag, uint32 i)const
 	{
 		if(this->container_.valid_at(i) )
 			flags_[i] = 1;
@@ -244,7 +244,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	void operator()(TagFillPairs, int32 i)const
+	void operator()(TagFillPairs, uint32 i)const
 	{
 		auto fi = flags_[i];
 		if(fi!=flags_[i+1])

src/Interaction/contactLists/unsortedContactList.hpp

@@ -72,7 +72,7 @@ protected:
 	using rpFillPairs = Kokkos::RangePolicy<
 		ExecutionSpace,
 		Kokkos::Schedule<Kokkos::Static>,
-		Kokkos::IndexType<int32>,
+		Kokkos::IndexType<uint32>,
 		TagReFillPairs>;
 
 
@@ -80,7 +80,7 @@ public:
 
 	TypeInfoNV("unsortedContactList");
 
-	unsortedContactList(int32 capacity=1)
+	explicit unsortedContactList(uint32 capacity=1)
 	:
 		UnsortedPairs(capacity),
 		values_("values", UnsortedPairs::capacity()),
@@ -122,7 +122,7 @@ public:
 	INLINE_FUNCTION_HD
 	bool getValue(const PairType& p, ValueType& val)const
 	{
-		if(auto idx = this->find(p); idx>=0)
+		if(auto idx = this->find(p); idx!=-1)
 		{
 			val = getValue(idx); 
 			return true;
@@ -131,7 +131,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	void setValue(int32 idx, const ValueType& val)const
+	void setValue(uint32 idx, const ValueType& val)const
 	{
 		values_[idx] = val;
 	}
@@ -139,7 +139,7 @@ public:
 	INLINE_FUNCTION_HD
 	bool setValue(const PairType& p, const ValueType& val)const
 	{
-		if(auto idx = this->find(p); idx>=0)
+		if(uint32 idx = this->find(p); idx!=-1)
 		{
 			setValue(idx, val);
 			return true;;
@@ -148,13 +148,13 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	void operator()(TagReFillPairs, int32 idx)const
+	void operator()(TagReFillPairs, uint32 idx)const
 	{
 		if( this->isValid(idx) )
 		{
-			if( int32 idx0 = 
+			if( uint32 idx0 = 
 					container0_.find(this->getPair(idx));
-					idx0>=0 )
+					idx0!=-1 )
 			{
 				values_[idx] = values0_[idx0];
 			}

src/Interaction/contactLists/unsortedPairs.hpp

@@ -41,7 +41,7 @@ public:
 
 	using memory_space 		= typename ExecutionSpace::memory_space;
 
-	using PairType 			= kPair<idType,idType>;
+	using PairType 			= Pair<idType,idType>;
 
 	using ContainerType 	= unorderedSet<PairType, ExecutionSpace>;
 
@@ -52,19 +52,19 @@ public:
 		ContainerType 		Container_;
 
 		INLINE_FUNCTION_HD
-		int32 size()const { return Container_.size(); }
+		uint32 size()const { return Container_.size(); }
 
 		INLINE_FUNCTION_HD
-		int32 loopCount()const { return Container_.capacity(); }
+		uint32 loopCount()const { return Container_.capacity(); }
 
 		INLINE_FUNCTION_HD
-		bool isValid(int32 idx)const { return Container_.valid_at(idx); }
+		bool isValid(uint32 idx)const { return Container_.valid_at(idx); }
 
 		INLINE_FUNCTION_HD
-		PairType getPair(int idx)const {	return Container_.key_at(idx); }
+		PairType getPair(uint32 idx)const {	return Container_.key_at(idx); }
 
 		INLINE_FUNCTION_HD
-		bool getPair(int32 idx, PairType& pair)const {
+		bool getPair(uint32 idx, PairType& pair)const {
 			if(Container_.valid_at(idx))	{
 				pair = Container_.key_at(idx);
 				return true;
@@ -84,7 +84,7 @@ public:
 	TypeInfoNV("unsorderedPairs");
 
 	// constructor
-	unsortedPairs(int32 capacity=1)
+	explicit unsortedPairs(uint32 capacity=1)
 	:
 		container_(capacity) // the minimum capacity would be 128 
 	{}
@@ -102,7 +102,7 @@ public:
 	
 	// - Device call
 	INLINE_FUNCTION_HD
-	int32 insert(idType i, idType j)const
+	uint32 insert(idType i, idType j)const
 	{
 		if(auto insertResult = container_.insert(PairType(i,j)); insertResult.failed())
 			return -1;
@@ -112,7 +112,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	int32 insert(const PairType& p)const
+	uint32 insert(const PairType& p)const
 	{
 		if(auto insertResult = container_.insert(p); insertResult.failed())
 			return -1;
@@ -125,7 +125,7 @@ public:
 	//   return the pair at index idx
 	//   perform no check for size and existance
 	INLINE_FUNCTION_HD
-	PairType getPair(int32 idx)const
+	PairType getPair(uint32 idx)const
 	{
 		return container_.key_at(idx);
 	}
@@ -133,7 +133,7 @@ public:
 	// - Device call
 	//   return the pair at index idx
 	INLINE_FUNCTION_HD
-	bool getPair(int32 idx, PairType& p)const
+	bool getPair(uint32 idx, PairType& p)const
 	{
 		if(container_.valid_at(idx))
 		{
@@ -148,7 +148,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	int32 find(const PairType & p)const
+	uint32 find(const PairType & p)const
 	{
 		if( auto idx = container_.find(p); 
 			idx != Kokkos::UnorderedMapInvalidIndex )
@@ -158,26 +158,26 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	bool isValid(int32 idx)const
+	bool isValid(uint32 idx)const
 	{
 		return container_.valid_at(idx);	
 	}
 
 
 	INLINE_FUNCTION_HD
-	int32 capacity() const
+	uint32 capacity() const
 	{
 		return container_.capacity();
 	}
 
-	int32 loopCount()const
+	uint32 loopCount()const
 	{
 		return container_.capacity();
 	}
 	
 	//use this when the value of size_ is updated
 	INLINE_FUNCTION_H
-	int32 size()const
+	uint32 size()const
 	{
 		return container_.size();
 	}
@@ -190,7 +190,7 @@ public:
 	/// increase the capacity of the container by at-least len 
 	/// the content will be erased. 
 	INLINE_FUNCTION_H
-	void increaseCapacityBy(int32 len)
+	void increaseCapacityBy(uint32 len)
 	{
 		uint newCap = container_.capacity()+len;
 		this->clear();

src/Interaction/contactSearch/ContactSearch/ContactSearch.hpp

@@ -22,16 +22,17 @@ Licence:
 #ifndef __ContactSearch_hpp__
 #define __ContactSearch_hpp__
 
-
+#include "contactSearchGlobals.hpp"
 #include "contactSearch.hpp"
 #include "box.hpp"
+#include "particles.hpp"
+#include "geometry.hpp"
 
 namespace pFlow
 {
 
 template<
-	template<class> class BaseMethod,
+	class searchMethod
-	template<class> class WallMapping	
 >
 class ContactSearch
 :
@@ -39,32 +40,19 @@ class ContactSearch
 {
 public:
 	
-	using IdType 			= typename contactSearch::IdType;
+	using IdType 			= uint32;
 
-	using IndexType 		= typename contactSearch::IndexType;
+	using ExecutionSpace 	= DefaultExecutionSpace;
 
-	using ExecutionSpace 	= typename contactSearch::ExecutionSpace;
+	using SearchMethodType = searchMethod;
 
-	using PairContainerType = typename contactSearch::PairContainerType;
+private:
 	
-	using ParticleContactSearchType = 
+	uniquePtr<SearchMethodType> 	ppwContactSearch_ = nullptr;
-		BaseMethod<
-			ExecutionSpace>;
-
-	using WallMappingType =
-		WallMapping<
-			ExecutionSpace>;
-
-protected:
-	
-
-	uniquePtr<ParticleContactSearchType> particleContactSearch_ = nullptr;
-
-	uniquePtr<WallMappingType> 			 wallMapping_ = nullptr;
 
 public:
 
-	TypeInfoTemplate2("ContactSearch", ParticleContactSearchType, WallMappingType);
+	TypeInfoTemplate11("ContactSearch", SearchMethodType);
 
 	ContactSearch(
 		const dictionary& csDict,
@@ -74,54 +62,41 @@ public:
 	 	Timers& timers)
 	:
 		contactSearch(csDict, domain, prtcl, geom, timers)
-		
 	{
 
 		auto method = dict().getVal<word>("method");
-		auto wmMethod = dict().getVal<word>("wallMapping");
 				
 		auto nbDict = dict().subDict(method+"Info");
 
 		real minD, maxD;
 		this->Particles().boundingSphereMinMax(minD, maxD);
 		
-		const auto& position = this->Particles().pointPosition().deviceVectorAll();
+		const auto& position = this->Particles().pointPosition().deviceViewAll();
-		const auto& diam = this->Particles().boundingSphere().deviceVectorAll();
+		const auto& flags = this->Particles().dynPointStruct().activePointsMaskDevice();
+		const auto& diam = this->Particles().boundingSphere().deviceViewAll();
 
-		particleContactSearch_ = 
+		uint32 wnPoints = this->Geometry().numPoints();
-			makeUnique<ParticleContactSearchType>
+		uint32 wnTri    = this->Geometry().size();
+		const auto& wPoints = this->Geometry().points().deviceViewAll();
+		const auto& wVertices = this->Geometry().vertices().deviceViewAll();
+
+		ppwContactSearch_ = 
+			makeUnique<SearchMethodType>
 			(
 				nbDict,
-				this->domain(),
+				this->domainBox(),
 				minD,
 				maxD,
 				position,
-				diam
+				flags,
-			);
+				diam,
-		REPORT(2)<<"Contact search algorithm for particle-particle is "<<
-				 greenText(particleContactSearch_().typeName())<<endREPORT;
-
-
-		auto wmDict = dict().subDict(wmMethod+"Info");
-
-		int32 wnPoints = this->Geometry().numPoints();
-		int32 wnTri    = this->Geometry().size();
-
-		const auto& wPoints = this->Geometry().points().deviceVectorAll();
-		const auto& wVertices = this->Geometry().vertices().deviceVectorAll();
-
-		wallMapping_ = 
-			makeUnique<WallMappingType>(
-				wmDict,
-				particleContactSearch_().numLevels(),
-				particleContactSearch_().getCellsLevels(),
 				wnPoints,
 				wnTri,
 				wPoints,
 				wVertices
 			);
-		REPORT(2)<<"Wall mapping algorithm for particle-wall is "<<
+		REPORT(2)<<"Contact search algorithm for particle-particle is "<<
-				 greenText(wallMapping_().typeName())<< endREPORT;
+				 Green_Text(ppwContactSearch_().typeName())<<END_REPORT;
 
 	}
 
@@ -131,42 +106,38 @@ public:
 		ContactSearch,
 		dictionary);
 
+	
 	bool broadSearch(
-		PairContainerType& ppPairs,
+		uint32 iter,
-		PairContainerType& pwPairs,
+		real t,
+		real dt,
+		csPairContainerType& ppPairs,
+		csPairContainerType& pwPairs,
 		bool force = false) override
 	{
 
+		ppTimer().start();
 
-		if(particleContactSearch_)
+		const auto& position = Particles().pointPosition().deviceViewAll();
+		const auto& flags = Particles().dynPointStruct().activePointsMaskDevice();
+		const auto& diam = Particles().boundingSphere().deviceViewAll();
+		
+		
+		if( !ppwContactSearch_().broadSearch(
+			iter,
+			t,
+			dt,
+			ppPairs, 
+			pwPairs,
+			position, 
+			flags, 
+			diam,
+			force) )
 		{
-			auto activeRange = this->Particles().activeRange();
+			fatalErrorInFunction;
-
-			sphereSphereTimer_.start();
-
-			if(this->Particles().allActive())
-			{		
-				particleContactSearch_().broadSearch(ppPairs, activeRange, force);
-			}
-			else
-			{		
-				particleContactSearch_().broadSearch(ppPairs, activeRange, this->Particles().activePointsMaskD(), force);
-			}
-
-			sphereSphereTimer_.end();
-
-		}
-		else
 			return false;
-		
-		if(wallMapping_)
-		{
-			sphereWallTimer_.start();
-			wallMapping_().broadSearch(pwPairs, particleContactSearch_(), force);
-			sphereWallTimer_.end();
 		}
-		else
+		ppTimer().end();
-			return false;
 
 				
 	
@@ -174,71 +145,19 @@ public:
 	}
 
 
-	bool ppEnterBroadSearch()const override
+	bool enterBroadSearch(uint32 iter, real t, real dt)const override
 	{
-		if(particleContactSearch_)
+		if(ppwContactSearch_)
 		{
-			return particleContactSearch_().enterBoadSearch(); 
+			return ppwContactSearch_().performSearch(iter); 
 		}
 		return false;
 	}
 
-	bool pwEnterBroadSearch()const override
+	bool performedBroadSearch()const override
 	{
-		if(wallMapping_)
+		return ppwContactSearch_().performedSearch();
-		{
-			return wallMapping_().enterBoadSearch();
 	}
-		return false;
-	}
-	
-
-	bool ppPerformedBroadSearch()const override
-	{
-		if(particleContactSearch_)
-		{
-			return particleContactSearch_().performedSearch();
-		}
-		return false;
-	}
-
-	
-	bool pwPerformedBroadSearch()const override
-	{
-		if(wallMapping_)
-		{
-			return wallMapping_().performedSearch();
-		}
-		return false;
-	}
-
-	/*bool update(const eventMessage& msg) 
-	{
-		if(msg.isSizeChanged() ) 
-		{
-			auto newSize = this->prtcl().size();
-			if(!particleContactSearch_().objectSizeChanged(newSize))
-			{
-				fatalErrorInFunction<<
-				"erro in changing the size for particleContactSearch_ \n";
-				return false;
-			}
-		}
-
-		if(msg.isCapacityChanged() ) 
-		{
-			auto newSize = this->prtcl().capacity();
-			if(!particleContactSearch_().objectSizeChanged(newSize))
-			{
-				fatalErrorInFunction<<
-				"erro in changing the capacity for particleContactSearch_ \n";
-				return false;
-			}
-		}	
-		
-		return true;
-	}*/
-	
 	
 };
 

src/Interaction/contactSearch/ContactSearch/ContactSearchs.cpp

@@ -20,11 +20,11 @@ Licence:
 
 #include "ContactSearch.hpp"
 
-#include "cellMapping.hpp"
+//#include "cellMapping.hpp"
 #include "NBS.hpp"
-#include "multiGridNBS.hpp"
+//#include "multiGridNBS.hpp"
-#include "multiGridMapping.hpp"
+//#include "multiGridMapping.hpp"
 
 
-template class pFlow::ContactSearch<pFlow::NBS, pFlow::cellMapping>;
+template class pFlow::ContactSearch<pFlow::NBS>;
-template class pFlow::ContactSearch<pFlow::multiGridNBS, pFlow::multiGridMapping>;
+//template class pFlow::ContactSearch<pFlow::multiGridNBS, pFlow::multiGridMapping>;

src/Interaction/contactSearch/contactSearch/contactSearch.cpp

@@ -19,7 +19,7 @@ Licence:
 -----------------------------------------------------------------------------*/
 
 #include "contactSearch.hpp"
-
+#include "streams.hpp"
 
 
 pFlow::contactSearch::contactSearch(
@@ -29,11 +29,12 @@ pFlow::contactSearch::contactSearch(
  	const geometry& geom,
  	Timers& timers)
 :
-	interactionBase(prtcl, geom),
+	domainBox_(domain),
-	domain_(domain),
+	particles_(prtcl),
-	dict_(dict),
+	geometry_(geom),
-	sphereSphereTimer_("particle-particle contact search", &timers),
+	ppTimer_("particle-particle contact search", &timers),
-	sphereWallTimer_("particle-wall contact search", &timers)
+	pwTimer_("particle-wall contact search", &timers),
+	dict_(dict)
 {
 
 }
@@ -46,20 +47,16 @@ pFlow::uniquePtr<pFlow::contactSearch> pFlow::contactSearch::create(
  	const geometry& geom,
  	Timers& timers)
 {
-
 	word baseMethName	= dict.getVal<word>("method");	
-	word wallMethod 	= dict.getVal<word>("wallMapping");
 
-	auto model = angleBracketsNames2("ContactSearch", baseMethName, wallMethod);
+	auto model = angleBracketsNames("ContactSearch", baseMethName);
-
-
-	REPORT(1)<<"Selecting contact search model . . ."<<endREPORT;
 
+	REPORT(1)<<"Selecting contact search model . . ."<<END_REPORT;
 	
 	if( dictionaryvCtorSelector_.search(model))
 	{
 		auto objPtr = dictionaryvCtorSelector_[model] (dict, domain, prtcl, geom, timers);
-		REPORT(2)<<"Model "<< greenText(model)<<" is created."<<endREPORT;
+		REPORT(2)<<"Model "<< Green_Text(model)<<" is created."<< END_REPORT;
 		return objPtr;
 	}
 	else

src/Interaction/contactSearch/contactSearch/contactSearch.hpp

@@ -23,43 +23,36 @@ Licence:
 #define __contactSearch_hpp__
 
 
-#include "interactionBase.hpp"
+#include "contactSearchGlobals.hpp"
-#include "unsortedPairs.hpp"
-#include "box.hpp"
 #include "dictionary.hpp"
+#include "virtualConstructor.hpp"
+#include "Timer.hpp"
 
 namespace pFlow
 {
 
+// - forward 
+class box;
+class particles;
+class geometry;
+
 
 class contactSearch
-:
-	public interactionBase
 {
-public:
+private:
-	using IdType 			= typename interactionBase::IdType;
 
-	using IndexType 		= typename interactionBase::IndexType;
+	const box& 	domainBox_;
 
-	using ExecutionSpace 	= typename interactionBase::ExecutionSpace;
+	const particles& 		particles_;
 
-	using PairContainerType   = unsortedPairs<ExecutionSpace, IdType>;
+	const geometry&			geometry_;
 
-protected:
+	Timer 		ppTimer_;
 
-	const box& 			domain_;
+	Timer 		pwTimer_;
 
 	dictionary 	dict_;
 
-	Timer 		sphereSphereTimer_;
-
-	Timer 		sphereWallTimer_;
-
-	auto& dict()
-	{
-		return dict_;
-	}
-	
 public:
 
 	TypeInfo("contactSearch");
@@ -88,35 +81,51 @@ public:
 	 	(dict, domain, prtcl, geom, timers)
 	);
 
-	const auto& domain()const
-	{
-		return domain_;
-	}
 	
 	const auto& dict()const
 	{
 		return dict_;
 	}
 
+	const auto& domainBox()const
+	{
+		return domainBox_;
+	}
+
+	const auto& Particles()const
+	{
+		return particles_;
+	}
+
+	const auto& Geometry()const
+	{
+		return geometry_;
+	}
+
+	auto& ppTimer()
+	{
+		return ppTimer_;
+	}
+
+	auto& pwTimer()
+	{
+		return pwTimer_;
+	}
 
 	virtual 
 	bool broadSearch(
-		PairContainerType& ppPairs,
+		uint32 iter,
-		PairContainerType& pwPairs,
+		real t,
+		real dt,
+		csPairContainerType& ppPairs,
+		csPairContainerType& pwPairs,
 		bool force = false) = 0;
 
 	virtual 
-	bool ppEnterBroadSearch()const = 0;
+	bool enterBroadSearch(uint32 iter, real t, real dt)const = 0;
 
 	virtual 
-	bool pwEnterBroadSearch()const = 0;
+	bool performedBroadSearch()const = 0;
-
-	virtual 
-	bool ppPerformedBroadSearch()const = 0;
-
-	virtual 
-	bool pwPerformedBroadSearch()const = 0;
-	
 
 	static 
 	uniquePtr<contactSearch> create(

src/Interaction/contactSearch/contactSearchFunctions.hpp

@@ -96,17 +96,6 @@ void indexToCell(const indexType idx, const iBox<cellIndexType>& box, triple<cel
 	cell+= box.minPoint();
 }
 
-
-
-
-
-
-INLINE_FUNCTION_HD
-bool sphereSphereCheck(const realx3& p1, const realx3 p2, real d1, real d2)
-{
-	return length(p2-p1) < 0.5*(d2+d1);
-}
-
 }
 
 #endif //__broadSearchFunctions_hpp__

src/Interaction/contactSearch/contactSearchGlobals.hpp

@@ -18,28 +18,21 @@ Licence:
 
 -----------------------------------------------------------------------------*/
 
-#ifndef __interactionTypes_hpp__
-#define __interactionTypes_hpp__
-
-
-
 #include "types.hpp"
+#include "unsortedPairs.hpp"
 
+#ifndef __contactSearchGlobals_hpp__
+#define __contactSearchGlobals_hpp__
 
 namespace pFlow
 {
 
+using csExecutionSpace = DefaultExecutionSpace;
 
-// always use signed types
+using csIdType = uint32;
-using CELL_INDEX_TYPE 	= int32;
 
-using ID_TYPE 			= int32;
+using csPairContainerType   = unsortedPairs<DefaultExecutionSpace, uint32>;
-
-//constexpr int32 minCellIndex = largestNegative<CELL_INDEX_TYPE>();
-
-//constexpr int32 maxCellIndex = largestPositive<CELL_INDEX_TYPE>();
 
 }
 
-
+#endif
-#endif //__interactionTypes_hpp__

src/Interaction/contactSearch/methods/NBS.hpp

@@ -1,209 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-
-#ifndef __NBS_hpp__
-#define __NBS_hpp__
-
-#include "NBSLevel0.hpp"
-
-namespace pFlow
-{
-
-
-template<typename executionSpace>
-class NBS
-{
-public:
-
-	using NBSLevel0Type	= NBSLevel0<executionSpace>;
-
-	using cellIterator 	= typename NBSLevel0Type::cellIterator;
-
-	using IdType 		= typename NBSLevel0Type::IdType;
-	
-	using IndexType 	= typename NBSLevel0Type::IndexType;
-
-	using Cells 		= typename NBSLevel0Type::Cells;
-
-	using CellType 		= typename Cells::CellType;
-
-	using execution_space 	= typename NBSLevel0Type::execution_space;
-
-	using memory_space 		= typename NBSLevel0Type::memory_space;
-
-
-protected:
-
-	real 		sizeRatio_ = 1.0;
-
-	int32 		updateFrequency_= 1;
-
-	int32 		currentIter_ 	= 0;
-
-	bool 		performedSearch_ = false;
-
-	NBSLevel0Type NBSLevel0_;
-
-private:
-
-	bool performSearch()
-	{
-		if(currentIter_ % updateFrequency_ == 0)
-		{
-			currentIter_++;
-			return true;
-
-		}else
-		{
-			currentIter_++;
-			return false;
-		}
-	}
-
-public:
-
-	TypeInfoNV("NBS");
-
-		NBS(
-			const dictionary& dict,
-			const 	box& domain,
-			real  minSize,
-			real 	maxSize,
-			const 	ViewType1D<realx3, memory_space>& position,
-			const 	ViewType1D<real, memory_space>& diam)
-		:
-			sizeRatio_( 
-				max(
-					dict.getValOrSet<real>("sizeRatio", 1.0),
-					1.0
-					)),
-			updateFrequency_(
-				max( 
-					dict.getValOrSet<int32>("updateFrequency", 1),
-					1
-					)),
-			NBSLevel0_(
-				domain, 
-				maxSize*sizeRatio_,
-				sizeRatio_,
-				position,
-				diam)
-		{}
-			
-		INLINE_FUNCTION_HD
-		NBS(const NBS&) = default;
-
-		INLINE_FUNCTION_HD
-		NBS& operator = (const NBS&) = default;
-
-		INLINE_FUNCTION_HD
-		~NBS()=default;
-
-	//// - Methods 
-
-	bool enterBoadSearch()const
-	{
-		return currentIter_%updateFrequency_==0;
-	}
-
-	bool performedSearch()const
-	{
-		return performedSearch_;
-	}
-
-	Vector<cellIterator> getCellIteratorLevels()
-	{
-		return Vector<cellIterator>("cellIterator", 1, NBSLevel0_.getCellIterator());
-	}
-
-	auto getCellIterator(int32 lvl)const
-	{
-		return NBSLevel0_.getCellIterator();
-	}
-
-	int32 numLevels()const
-	{
-		return 1;
-	}
-
-	Vector<Cells> getCellsLevels()const
-	{
-		return Vector<Cells>("Cells", 1, NBSLevel0_.getCells());
-	}
-
-	auto getCells()const
-	{
-		return NBSLevel0_.getCells();
-	}
-
-	bool objectSizeChanged(int32 newSize)
-	{
-		NBSLevel0_.checkAllocateNext(newSize);
-		return true;
-	}
-
-	// - Perform the broad search to find pairs
-	//	 with force = true, perform broad search regardless of 
-	//   updateFrequency_ value
-	//   on all the points in the range of [0,numPoints_)
-	template<typename PairsContainer>
-	bool broadSearch(PairsContainer& pairs, range activeRange, bool force=false)
-	{
-		
-		if(force) currentIter_ = 0;
-		performedSearch_ = false;
-
-		if( !performSearch() ) return true;
-		
-		
-		NBSLevel0_.build(activeRange);
-		
-		NBSLevel0_.findPairs(pairs);
-		
-		performedSearch_ = true;		
-		return true;
-	}
-
-	// - Perform the broad search to find pairs,
-	//   ignore particles with incld(i) = true,
-	//	 with force = true, perform broad search regardless of 
-	//   updateFrequency_ value
-	template<typename PairsContainer, typename IncludeFunction>
-	bool broadSearch(PairsContainer& pairs, range activeRange, IncludeFunction incld, bool force = false)
-	{
-		if(force) currentIter_ = 0;
-		performedSearch_ = false;
-
-		if( !performSearch() ) return true;
-
-		NBSLevel0_.build(activeRange, incld);
-	
-		NBSLevel0_.findPairs(pairs);
-		
-		performedSearch_ = true;
-		return true;
-	}
-
-};
-
-}
-
-#endif

src/Interaction/contactSearch/methods/NBSCrossLoop.hpp

@@ -1,82 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-
-int32 m = this->head_(i,j,k);
-CellType currentCell(i,j,k);
-int32 n = -1;
-
-while( m > -1 )
-{
-	
-	auto p_m = this->pointPosition_[m];	
-	auto d_m = this->sizeRatio_* this->diameter_[m];
-	
-	int32x3 crossIndex = mapIndexLevels(
-		int32x3(i,j,k),
-		level_, 
-		upperLevel.level());
-
-	
-	for(int32 ii = -1; ii<2; ii++)
-	{
-		for(int32 jj=-1; jj<2; jj++)
-		{
-			int32 kk=-1;
-			while( kk < 2)
-			{
-				int32x3 nghbrCI = crossIndex + int32x3(ii,jj,kk);
-				
-				if( upperLevel.isInRange(nghbrCI) )
-				{
-					n = upperLevel.head_(
-						nghbrCI.x(),
-						nghbrCI.y(),
-						nghbrCI.z());
-
-					while( n >-1)
-					{
-						auto p_n = this->pointPosition_[n];
-						auto d_n = this->sizeRatio_*this->diameter_[n];
-
-						if( sphereSphereCheck(p_m, p_n, d_m, d_n) )
-						{
-							auto ln = n;
-							auto lm = m;
-							if(lm>ln) this->Swap(lm,ln);
-							if( auto res = pairs.insert(lm,ln); res <0)
-							{
-								getFullUpdate++;
-							}
-						}
-
-						n = this->next_[n];
-					}
-
-				}
-
-				kk++;
-			}
-		}
-	}
-
-	m = this->next_[m];
-}
-

src/Interaction/contactSearch/methods/NBSLevel.hpp

@@ -1,127 +0,0 @@
-#ifndef __NBSLevel_hpp__
-#define __NBSLevel_hpp__
-
-
-#include "NBSLevel0.hpp"
-
-
-namespace pFlow
-{
-
-INLINE_FUNCTION_HD
-int32x3 mapIndexLevels(const int32x3& ind, int32 lowerLevel, int32 upperLevel);
-
-template<typename executionSpace>
-class
-NBSLevel
-:
-	public NBSLevel0<executionSpace>
-{
-public:
-
-	using NBSLevel0Type	= NBSLevel0<executionSpace>;
-
-	using cellIterator 	= typename NBSLevel0Type::cellIterator;
-
-	using IdType 		= typename NBSLevel0Type::IdType;
-	
-	using IndexType 	= typename NBSLevel0Type::IndexType;
-
-	using Cells 		= typename NBSLevel0Type::Cells;
-
-	using CellType 		= typename Cells::CellType;
-
-	using execution_space 	= typename NBSLevel0Type::execution_space;
-
-	using memory_space 		= typename NBSLevel0Type::memory_space;
-
-	using mdrPolicyFindPairs = typename NBSLevel0Type::mdrPolicyFindPairs;
-
-	using HeadType 			= typename NBSLevel0Type::HeadType;
-
-	using NextType 			= typename NBSLevel0Type::NextType;
-
-	template<typename exeSpace>
-	friend class NBSLevels;
-
-protected:
-
-	int32 									level_ = 0;
-
-	
-public:
-	
-	TypeInfoNV("NBSLevel0");
-
-	INLINE_FUNCTION_HD
-	NBSLevel(){}
-
-	NBSLevel(
-		int32 	lvl,
-		const 	box& domain,
-		real 	cellSize,
-		real 	sizeRatio,
-		const 	ViewType1D<realx3, memory_space>& position,
-		const 	ViewType1D<real, memory_space>& diam)
-	:
-		NBSLevel0Type(
-			domain,
-			cellSize,
-			sizeRatio,
-			position,
-			diam,
-			lvl==0),
-		level_(lvl)
-	{}
-
-	INLINE_FUNCTION_HD
-	NBSLevel(const NBSLevel&) = default;
-	
-	INLINE_FUNCTION_HD
-	NBSLevel& operator = (const NBSLevel&) = default;
-
-	INLINE_FUNCTION_HD
-	~NBSLevel() = default;
-
-	INLINE_FUNCTION_HD
-	auto level()const
-	{
-		return level_;
-	}
-
-	template<typename PairsContainer>	
-	INLINE_FUNCTION_H
-	int32 findPairsCountCross(PairsContainer& pairs, NBSLevel& upperLevel)
-	{
-
-		mdrPolicyFindPairs
-			mdrPolicy(
-				{0,0,0},
-				{this->nx(),this->ny(),this->nz()} );
-
-		int32 notInsertedPairs;
-
-		Kokkos::parallel_reduce	(
-			"NBSLevel::findPairsCountCross",
-			mdrPolicy,
-			CLASS_LAMBDA_HD(int32 i, int32 j, int32 k, int32& getFullUpdate){
-				#include "NBSCrossLoop.hpp"
-			}, notInsertedPairs);
-			
-		return notInsertedPairs;	
-	}
-	 
-	
-};
-
-INLINE_FUNCTION_HD
-int32x3 mapIndexLevels( const int32x3& ind, int32 lowerLevel, int32 upperLevel)
-{
-	int32 a = pow(2, static_cast<int32>(upperLevel-lowerLevel));
-	return ind/a;
-}
-
-
-}
-
-#endif

src/Interaction/contactSearch/methods/NBSLevel0.hpp

@@ -1,240 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-
-#ifndef __NBSLevel0_hpp__
-#define __NBSLevel0_hpp__
-
-#include "mapperNBS.hpp"
-
-namespace pFlow
-{
-
-
-template<typename executionSpace>
-class NBSLevel0
-:
-	public mapperNBS<executionSpace>
-{
-public:
-
-	using MapperType 		= mapperNBS<executionSpace>;
-
-	using cellIterator  	= typename MapperType::cellIterator;
-
-	using IdType 			= typename MapperType::IdType;
-	
-	using IndexType 		= typename MapperType::IndexType;
-
-	using Cells 			= typename MapperType::Cells;
-
-	using CellType 			= typename Cells::CellType;
-
-	using execution_space 	= typename MapperType::execution_space;
-
-	using memory_space 		= typename MapperType::memory_space;
-
-	using HeadType 			= typename MapperType::HeadType;
-
-	using NextType 			= typename MapperType::NextType;	
-
-	struct TagFindPairs{};
-
-
-protected:
-
-	real 			sizeRatio_ 		= 1.0;
-
-	// borrowed ownership
-	ViewType1D<real, memory_space>			diameter_;
-
-
-	using mdrPolicyFindPairs = 
-		Kokkos::MDRangePolicy<
-			Kokkos::Rank<3>,
-			Kokkos::Schedule<Kokkos::Dynamic>,
-			execution_space>;
-
-	static INLINE_FUNCTION_HD
-	void Swap(int32& x, int32& y)
-	{
-		int32 tmp = x;
-		x = y;
-		y = tmp;
-	}
-
-public:
-
-	TypeInfoNV("NBSLevel0");
-
-		INLINE_FUNCTION_HD
-		NBSLevel0(){}
-
-		NBSLevel0(
-			const 	box& domain,
-			real 		cellSize,
-			const 	ViewType1D<realx3, memory_space>& position,
-			const 	ViewType1D<real, memory_space>& diam)
-		:
-			MapperType(domain, cellSize, position),
-			diameter_(diam)
-		{}
-
-		NBSLevel0(
-			const 	box& domain,
-			int32 	nx,
-			int32 	ny,
-			int32 	nz,
-			const 	ViewType1D<realx3, memory_space>& position,
-			const 	ViewType1D<real, memory_space>& diam)
-		:
-			MapperType(domain, nx, ny, nz, position),
-			diameter_(diam)
-		{	}
-
-		NBSLevel0(
-			const 	box& domain,
-			real 		cellSize,
-			real 		sizeRatio,
-			const 	ViewType1D<realx3, memory_space>& position,
-			const 	ViewType1D<real, memory_space>& diam,
-			bool 		nextOwner = true)
-		:
-			MapperType(domain, cellSize, position, nextOwner),
-			sizeRatio_(sizeRatio),
-			diameter_(diam)
-		{}
-
-		INLINE_FUNCTION_HD
-		NBSLevel0(const NBSLevel0&) = default;
-
-		INLINE_FUNCTION_HD
-		NBSLevel0& operator = (const NBSLevel0&) = default;
-
-		INLINE_FUNCTION_HD
-		~NBSLevel0()=default;
-
-
-	INLINE_FUNCTION_HD
-	auto sizeRatio()const
-	{
-		return sizeRatio_;
-	}
-
-	INLINE_FUNCTION_HD
-	auto& diameter()
-	{
-		return diameter_;
-	}
-
-	// - Perform the broad search to find pairs
-	//	 with force = true, perform broad search regardless of 
-	//   updateFrequency_ value
-	//   on all the points in the range of [0,numPoints_)
-	template<typename PairsContainer>
-	bool broadSearch(PairsContainer& pairs, range activeRange)
-	{
-		
-		
-		this->build(activeRange);
-		
-		findPairs(pairs);
-			
-		return true;
-	}
-
-	// - Perform the broad search to find pairs,
-	//   ignore particles with incld(i) = true,
-	//	 with force = true, perform broad search regardless of 
-	//   updateFrequency_ value
-	template<typename PairsContainer, typename IncludeFunction>
-	bool broadSearch(PairsContainer& pairs, range activeRange, IncludeFunction incld)
-	{
-		
-		this->build(activeRange, incld);
-	
-		findPairs(pairs);
-		
-		return true;
-	}
-
-	template<typename PairsContainer>	
-	INLINE_FUNCTION_H
-	bool findPairs(PairsContainer& pairs)
-	{
-		
-
-		int32 getFull = 1;
-		
-		
-		// loop until the container size fits the numebr of contact pairs
-		while (getFull > 0)
-		{
-
-			getFull = findPairsCount(pairs);		
-		
-			if(getFull)
-			{
-				// - resize the container
-				//   note that getFull now shows the number of failed insertions.
-				uint32 len = max(getFull,500) ;
-				
-				auto oldCap = pairs.capacity();
-				
-				pairs.increaseCapacityBy(len);
-
-				INFORMATION<< "The contact pair container capacity increased from "<<
-				oldCap << " to "<<pairs.capacity()<<" in NBSLevel0."<<endINFO;
-				
-			}
-
-			Kokkos::fence();
-		}
-		
-		return true;
-	}
-
-	template<typename PairsContainer>	
-	INLINE_FUNCTION_H
-	int32 findPairsCount(PairsContainer& pairs)
-	{
-		mdrPolicyFindPairs
-			mdrPolicy(
-				{0,0,0},
-				{this->nx(),this->ny(),this->nz()} );
-
-		int32 notInsertedPairs;
-			
-		Kokkos::parallel_reduce	(
-			"NBSLevel0::findPairs",
-			mdrPolicy,
-			CLASS_LAMBDA_HD(int32 i, int32 j, int32 k, int32& getFullUpdate){
-				#include "NBSLoop.hpp"
-			}, notInsertedPairs);
-			
-		return notInsertedPairs;
-			
-	}
-
-};
-
-} // pFlow
-
-#endif // __NBSLevel0_hpp__

src/Interaction/contactSearch/methods/NBSLevels.hpp

@@ -1,438 +0,0 @@
-#ifndef __NBSLevels_hpp__
-#define __NBSLevels_hpp__
-
-#include "NBSLevel.hpp"
-#include "NBSLevel0.hpp"
-#include "KokkosTypes.hpp"
-
-namespace pFlow
-{
-
-template<typename executionSpace>
-class NBSLevels
-{
-
-public:
-
-	using NBSLevelType 	= NBSLevel<executionSpace>;
-
-	using cellIterator 	= typename NBSLevelType::cellIterator;
-
-	using IdType 		= typename NBSLevelType::IdType;
-	
-	using IndexType 	= typename NBSLevelType::IndexType;
-
-	using Cells 		= typename NBSLevelType::Cells;
-
-	using CellType 		= typename Cells::CellType;
-
-	using execution_space 	= typename NBSLevelType::execution_space;
-
-	using memory_space 		= typename NBSLevelType::memory_space;
-
-	using realRange 	= kPair<real,real>;
-
-protected:
-	
-	real 		minSize_;
-
-	real 		maxSize_;
-	
-	int32 		numLevels_=1;
-
-	Vector<NBSLevelType> 					nbsLevels_;
-
-	ViewType1D<realRange, memory_space> 	sizeRangeLevels_;
-
-	ViewType1D<realRange, HostSpace> 		sizeRangeLevelsHost_;
-
-	ViewType1D<real, memory_space> 			maxSizeLevels_;
-
-	ViewType1D<real, HostSpace> 			maxSizeLevelsHost_;
-
-	ViewType1D<int8, memory_space> 			particleLevel_;
-
-	range 									activeRange_{0,0};
-
-	using rangePolicyType	=
-		Kokkos::RangePolicy<
-			Kokkos::IndexType<int32>,
-			Kokkos::Schedule<Kokkos::Static>,
-			execution_space>;
-
-	int32 setNumLevels()
-	{
-
-		int32 maxOvermin = static_cast<int32>(maxSize_/minSize_);
-
-		if (maxOvermin <=1)
-			return 1;
-		else if(maxOvermin<=3)
-			return 2;
-		else if(maxOvermin<=7)
-			return 3;
-		else if(maxOvermin<15)
-			return 4;
-		else if(maxOvermin<31)
-			return 5;
-		else if(maxOvermin<63)
-			return 6;
-		else if(maxOvermin <127)
-			return 7;
-		else
-		{
-			fatalErrorInFunction<<
-			"size ratio is not valid for multi-grid NBS "<< maxOvermin<<endl;
-			fatalExit;
-		}
-
-		return -1;
-	}
-
-	bool setDiameterRange(real sizeRatio)
-	{
-		real lvl_maxD  = sizeRatio* maxSize_;
-		real lvl_minD  = lvl_maxD/2.0;		
-
-		for(int32 lvl=numLevels_-1; lvl>=0; lvl--)
-		{
-
-			if(lvl == 0 ) lvl_minD = 0.01*minSize_;
-			
-			sizeRangeLevelsHost_[lvl] = {lvl_minD, lvl_maxD};
-			maxSizeLevelsHost_[lvl] = lvl_maxD;
-			lvl_maxD = lvl_minD;
-			lvl_minD /= 2.0;
-		}
-		
-		copy(sizeRangeLevels_, sizeRangeLevelsHost_);
-		copy(maxSizeLevels_, maxSizeLevelsHost_);
-
-		REPORT(2)<<"Grids with "<< yellowText(numLevels_)<< " levels have been created."<<endREPORT;
-		for(int32 lvl=0; lvl<numLevels_; lvl++)
-		{
-			REPORT(3)<<"Cell gird No "<< yellowText(lvl)<<" with size range ("
-				<<sizeRangeLevelsHost_[lvl].first<<","<<sizeRangeLevelsHost_[lvl].second<<"]."<<endREPORT;
-		}
-		
-		return true;
-	}
-
-	bool initLevels(
-		const 	box& domain,
-		real 	sizeRatio,
-		const 	ViewType1D<realx3, memory_space>& position,
-		const 	ViewType1D<real, memory_space>& diam)
-	{
-		
-
-		for(int32 lvl = 0; lvl<numLevels_; lvl++)
-		{
-			nbsLevels_[lvl] = NBSLevelType(
-				lvl, 
-				domain, 
-				maxSizeLevelsHost_[lvl]*sizeRatio,
-				sizeRatio,
-				position,
-				diam );
-		}
-
-		auto next0 = nbsLevels_[0].next();
-		for(int32 lvl=1; lvl<numLevels_; lvl++)
-		{
-			nbsLevels_[lvl].setNext(next0);
-		}
-
-		return true;
-	}
-
-
-	void manageAllocateNext(range active)
-	{
-		activeRange_ = active;
-
-		if(activeRange_.second > nbsLevels_[0].capacity())
-		{
-			nbsLevels_[0].checkAllocateNext(activeRange_.second);
-
-			auto next0 = nbsLevels_[0].next();
-
-			for(int32 lvl=1; lvl<numLevels_; lvl++)
-			{
-				nbsLevels_[lvl].setNext(next0);
-			}
-		}
-	}
-
-	void nullify( range active)
-	{
-		for(int32 lvl=0; lvl<numLevels_; lvl++)
-		{
-			nbsLevels_[lvl].nullify(active);
-		}
-	}
-
-public:
-
-	NBSLevels(
-		const 	box& domain,
-		real 	minSize,
-		real 	maxSize,
-		real 	sizeRatio,
-		const 	ViewType1D<realx3, memory_space>& position,
-		const 	ViewType1D<real, memory_space>& diam)
-	:
-	minSize_(minSize),
-	maxSize_(maxSize),
-	numLevels_(setNumLevels()),
-	nbsLevels_("nbsLevels", numLevels_, numLevels_, RESERVE()),
-	sizeRangeLevels_("sizeRangeLevels", numLevels_),
-	sizeRangeLevelsHost_("sizeRangeLevelsHost", numLevels_),
-	maxSizeLevels_("maxSizeLevels", numLevels_),
-	maxSizeLevelsHost_("maxSizeLevelsHost", numLevels_)
-	{
-
-		setDiameterRange(sizeRatio);
-
-		initLevels(domain, sizeRatio, position, diam);
-	}
-
-	auto getCellIterator(int32 lvl)const
-	{
-		return nbsLevels_[lvl].getCellIterator();
-	}
-
-	int32 numLevels()const
-	{
-		return numLevels_;
-	}
-
-	Cells getCells(int32 lvl)const
-	{
-		return nbsLevels_[lvl].getCells();
-	}
-
-	template<typename PairsContainer>	
-	INLINE_FUNCTION_H
-	bool findPairs(PairsContainer& pairs)
-	{
-		
-		int32 getFull = 1;
-		
-		// loop until the container size fits the numebr of contact pairs
-		while (getFull > 0)
-		{
-
-			getFull = findPairsCount(pairs);		
-		
-			if(getFull)
-			{
-				// - resize the container
-				//   note that getFull now shows the number of failed insertions.
-				uint32 len = max(getFull,100) ;
-				
-				auto oldCap = pairs.capacity();
-				
-				pairs.increaseCapacityBy(len);
-
-				INFORMATION<< "The contact pair container capacity increased from "<<
-				oldCap << " to "<<pairs.capacity()<<" in NBSLevels."<<endINFO;
-				
-			}
-
-			Kokkos::fence();
-		}
-		
-		return true;
-	}
-
-
-	template<typename PairsContainer>	
-	INLINE_FUNCTION_H
-	int32 findPairsCount(PairsContainer& pairs)
-	{
-
-		int32 notInsertedCount = 0;
-
-		for(int32 lvl=0; lvl<numLevels_; lvl++)
-		{
-			
-			// the same level
-			notInsertedCount+= nbsLevels_[lvl].findPairsCount(pairs);
-			
-			for(int32 crsLvl = lvl+1; crsLvl<numLevels_; crsLvl++)
-			{
-				// cross levels 
-				notInsertedCount+= 
-					nbsLevels_[lvl].findPairsCountCross(pairs, nbsLevels_[crsLvl]);
-				
-			}
-		}
-		
-		return notInsertedCount;
-	}
-
-	INLINE_FUNCTION_H
-	void build(range activeRange)
-	{
-				
-		// nullify next and heads
-		findParticleLevel(activeRange.first, activeRange.second);
-		manageAllocateNext(activeRange);
-		nullify(activeRange);
-		
-		//
-
-		rangePolicyType rPolicy(activeRange.first, activeRange.second);
-		
-		auto nbsLevel0 = nbsLevels_[0];
-		auto pointPosition = nbsLevel0.pointPosition();
-		auto particleLevel = particleLevel_;
-		auto next = nbsLevel0.next();
-		auto head0 = nbsLevel0.head();
-		
-		typename NBSLevelType::HeadType head1, head2, head3, head4, head5, head6;
-
-		if(numLevels_>1) head1 = nbsLevels_[1].head();
-		if(numLevels_>2) head2 = nbsLevels_[2].head();
-		if(numLevels_>3) head3 = nbsLevels_[3].head();
-		if(numLevels_>4) head4 = nbsLevels_[4].head();
-		if(numLevels_>5) head5 = nbsLevels_[5].head();
-		if(numLevels_>6) head6 = nbsLevels_[6].head();
-
-
-		
-		Kokkos::parallel_for(
-			"NBSLevels::build",
-			rPolicy,
-			LAMBDA_HD(int32 i){
-				
-				int8 lvl = particleLevel[i];
-				auto ind = nbsLevel0.pointIndex(pointPosition[i]);
-				ind = mapIndexLevels(ind, 0, lvl);
-				int32 old;
-				if(lvl==0)
-					old =Kokkos::atomic_exchange(&head0(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==1)
-					old =Kokkos::atomic_exchange(&head1(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==2)
-					old =Kokkos::atomic_exchange(&head2(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==3)
-					old =Kokkos::atomic_exchange(&head3(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==4)
-					old =Kokkos::atomic_exchange(&head4(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==5)
-					old =Kokkos::atomic_exchange(&head5(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==6)
-					old =Kokkos::atomic_exchange(&head6(ind.x(), ind.y(), ind.z()),i);
-
-				next(i) = old;
-			});
-
-		Kokkos::fence();
-	}
-
-	template<typename IncludeFunction>
-	INLINE_FUNCTION_H
-	void build(range activeRange, IncludeFunction incld)
-	{
-		// nullify next and heads
-		findParticleLevel(activeRange.first, activeRange.second);
-		manageAllocateNext(activeRange);
-		nullify(activeRange);
-		
-
-		rangePolicyType rPolicy(activeRange.first, activeRange.second);
-
-		auto nbsLevel0 = nbsLevels_[0];
-		auto pointPosition = nbsLevel0.pointPosition();
-		auto particleLevel = particleLevel_;
-		auto next = nbsLevel0.next();
-		auto head0 = nbsLevel0.head();
-
-		typename NBSLevelType::HeadType head1, head2, head3, head4, head5, head6;
-
-		if(numLevels_>1) head1 = nbsLevels_[1].head();
-		if(numLevels_>2) head2 = nbsLevels_[2].head();
-		if(numLevels_>3) head3 = nbsLevels_[3].head();
-		if(numLevels_>4) head4 = nbsLevels_[4].head();
-		if(numLevels_>5) head5 = nbsLevels_[5].head();
-		if(numLevels_>6) head6 = nbsLevels_[6].head();
-
-		Kokkos::parallel_for(
-			"NBSLevels::build",
-			rPolicy,
-			LAMBDA_HD(int32 i){
-				if(!incld(i)) return;
-				
-				int8 lvl = particleLevel[i];
-				auto ind = nbsLevel0.pointIndex(pointPosition[i]);
-				
-				ind = mapIndexLevels(ind, 0, lvl);
-				int32 old;
-				if(lvl==0)
-					old =Kokkos::atomic_exchange(&head0(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==1)
-					old =Kokkos::atomic_exchange(&head1(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==2)
-					old =Kokkos::atomic_exchange(&head2(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==3)
-					old =Kokkos::atomic_exchange(&head3(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==4)
-					old =Kokkos::atomic_exchange(&head4(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==5)
-					old =Kokkos::atomic_exchange(&head5(ind.x(), ind.y(), ind.z()),i);
-				else if(lvl==6)
-					old =Kokkos::atomic_exchange(&head6(ind.x(), ind.y(), ind.z()),i);
-				
-				next(i) = old;
-				
-			});
-
-		Kokkos::fence();
-
-	}
-
-	bool findParticleLevel(int32 first, int32 last)
-	{
-
-		if(last > particleLevel_.size())
-		{
-			reallocNoInit(particleLevel_,last);
-		}
-
-		auto diameter  = nbsLevels_[0].diameter();
-		auto const maxSizes = maxSizeLevels_;
-		auto particleLevel = particleLevel_;
-		auto const sizeRatio = 0.999*nbsLevels_[0].sizeRatio();
-
-		int8 maxLvl = sizeRangeLevels_.size();
-
-		rangePolicyType rPolicy(first, last);
-
-		Kokkos::parallel_for(
-			"NBSLevels::findParticleLevel",
-			rPolicy,
-			LAMBDA_HD(int32 i)
-			{
-				for(int8 lvl = 0; lvl<maxLvl; lvl++)
-				{
-					if( sizeRatio*diameter[i]<= maxSizes[lvl] )
-					{
-						particleLevel[i] = lvl;
-						return;
-					}
-				}
-				particleLevel[i] = static_cast<int8>(-1);
-			});
-		Kokkos::fence();
-
-		return true;
-	}
-
-
-}; //NBSLevels
-
-}
-
-#endif

src/Interaction/contactSearch/methods/NBSLoop.hpp

@@ -1,101 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-
-int32 m = this->head_(i,j,k);
-CellType currentCell(i,j,k);
-int32 n = -1;
-
-while( m > -1 )
-{
-	
-	auto p_m = this->pointPosition_[m];	
-	auto d_m = sizeRatio_* diameter_[m];
-	
-	// the same cell
-	n = this->next_(m);
-	
-	while(n >-1)
-	{
-		
-		auto p_n = this->pointPosition_[n];
-		auto d_n = sizeRatio_*diameter_[n];
-		
-		if( sphereSphereCheck(p_m, p_n, d_m, d_n) )
-		{
-			auto ln = n;
-			auto lm = m;
-
-			if(lm>ln) Swap(lm,ln);
-			if( auto res = pairs.insert(lm,ln); res <0)
-			{
-				getFullUpdate++;
-			}
-		}
-		
-		n = this->next_(n);
-	}
-
-	// neighbor cells
-	CellType neighborCell;
-	for(int32 ni=0; ni<13; ni++)
-	{
-		if(ni==0)		neighborCell = currentCell + CellType( 0, 0,-1);
-		else if(ni==1)	neighborCell = currentCell + CellType(-1, 0,-1);
-		else if(ni==2)	neighborCell = currentCell + CellType(-1, 0, 0); 
-		else if(ni==3)	neighborCell = currentCell + CellType(-1, 0, 1); 
-		else if(ni==4)	neighborCell = currentCell + CellType( 0,-1,-1); 
-		else if(ni==5)	neighborCell = currentCell + CellType( 0,-1, 0); 
-		else if(ni==6)	neighborCell = currentCell + CellType( 0,-1, 1); 
-		else if(ni==7)	neighborCell = currentCell + CellType(-1,-1,-1); 
-		else if(ni==8)	neighborCell = currentCell + CellType(-1,-1, 0); 
-		else if(ni==9)	neighborCell = currentCell + CellType(-1,-1, 1);
-		else if(ni==10)	neighborCell = currentCell + CellType( 1,-1,-1);  
-		else if(ni==11)	neighborCell = currentCell + CellType( 1,-1, 0);  
-		else if(ni==12)	neighborCell = currentCell + CellType( 1,-1, 1);  
-		 
-		if( this->isInRange(neighborCell) )
-		{
-			
-			n = this->head_(neighborCell.x(), neighborCell.y(), neighborCell.z());
-			while( n>-1)
-			{
-				
-				auto p_n = this->pointPosition_[n];
-				auto d_n = sizeRatio_*diameter_[n];
-				
-				if(sphereSphereCheck(p_m, p_n, d_m, d_n))
-				{
-					auto ln = n;
-					auto lm = m;
-					if(lm>ln) Swap(lm,ln);
-					if( auto res = pairs.insert(lm,ln); res <0)
-					{
-						getFullUpdate++;
-					}
-				}
-				n = this->next_[n];
-			}
-		}
-
-	}
-	m = this->next_[m];
-}
-

src/Interaction/contactSearch/methods/cellBased/NBS/NBS.cpp

@@ -18,67 +18,50 @@ Licence:
 
 -----------------------------------------------------------------------------*/
 
-#ifndef __interactionBase_hpp__ 
+#include "NBS.hpp"
-#define __interactionBase_hpp__
 
-#include "interactionTypes.hpp"
+pFlow::NBS::NBS
-#include "particles.hpp"
+(
-#include "geometry.hpp"
+    const dictionary& dict,
-
+	const box& domainBox,
-namespace pFlow
+	real  	minBSSize,
-{
+	real 	maxBSSize,
-
+	const deviceViewType1D<realx3> &position, 
-class interactionBase
+	const pFlagTypeDevice &flags, 
-{
+	const deviceViewType1D<real> &diam, 
-public:
+	uint32 					nWallPoints,
-
+	uint32 					nWallElements,
-	using IndexType    			= CELL_INDEX_TYPE;
+	const ViewType1D<realx3,memory_space>& 		wallPoints, 
-
+	const ViewType1D<uint32x3,memory_space>& 	wallVertices
-	using IdType  				= ID_TYPE;
+)
-
-	using ExecutionSpace 	 	= DefaultExecutionSpace;
-
-protected:
-
-	const particles& 		particles_;
-
-	const geometry& 		geometry_;
-
-public:
-
-	interactionBase(
-		const particles& prtcl,
-		const geometry& geom)
 : 
-		particles_(prtcl),
+    particleWallContactSearchs<NBS>(
-		geometry_(geom)
+        dict,
-	{}
+        domainBox,
-
+        minBSSize,
-	inline
+        maxBSSize,
-	const auto& pStruct()const
+        position,
+        flags,
+        diam),
+    sizeRatio_(max(dict.getVal<real>("sizeRatio"), 1.0)),
+    cellExtent_(max(dict.getVal<real>("cellExtent"), 0.5)),
+    adjustableBox_(dict.getVal<Logical>("adjustableBox")),
+    NBSLevel0_
+	(
+        this->domainBox_,
+        maxBSSize,
+        sizeRatio_,
+        position,
+        flags,
+        adjustableBox_()
+	),
+	cellsWallLevel0_
+	(
+		cellExtent_,
+		nWallPoints,
+		nWallElements,
+		wallPoints,
+		wallVertices
+	)
 {
-		return particles_.pStruct();
 }
-
-	inline
-	const auto& surface()const
-	{
-		return geometry_.surface();
-	}
-
-	inline 
-	const auto& Particles()const
-	{
-		return particles_;
-	}
-
-	inline auto& Geometry()const
-	{
-		return geometry_;
-	}
-};
-
-}
-
-
-#endif //__interactionBase_hpp__

src/Interaction/contactSearch/methods/cellBased/NBS/NBS.hpp

@@ -0,0 +1,148 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+
+#ifndef __NBS_hpp__
+#define __NBS_hpp__
+
+#include "particleWallContactSearchs.hpp"
+#include "NBSLevel0.hpp"
+#include "cellsWallLevel0.hpp"
+#include "Vector.hpp"
+
+namespace pFlow
+{
+
+
+class NBS
+:
+	public particleWallContactSearchs<NBS>
+{
+public:
+
+	using CellIterator 	= typename NBSLevel0::CellIterator;
+
+private:
+	
+	real 		sizeRatio_ = 1.0;
+
+	real 		cellExtent_ = 0.5;
+
+	Logical 	adjustableBox_;
+
+	NBSLevel0 	NBSLevel0_;	
+
+	cellsWallLevel0 cellsWallLevel0_;
+
+protected:
+
+	friend 		particleWallContactSearchs<NBS>;
+	
+	bool impl_broadSearch
+	(
+		csPairContainerType& ppPairs,
+		csPairContainerType& pwPairs,
+		const deviceViewType1D<realx3>& pointPos,
+    	const pFlagTypeDevice& flags,
+    	const deviceViewType1D<real>& diameter
+	)
+	{
+		bool searchBoxChanged;
+		if( !NBSLevel0_.broadSearch(
+			ppPairs, 
+			pointPos, 
+			flags, 
+			diameter, 
+			searchBoxChanged))
+		{
+			fatalErrorInFunction<<
+			"Error in broadSearch for NBS (particle-particle)"<<endl;
+			return false;
+		}
+
+		if(!cellsWallLevel0_.broadSearch(
+			pwPairs,
+			NBSLevel0_.getSearchCells(),
+			NBSLevel0_.getCellIterator()))
+		{
+			fatalErrorInFunction<<
+			"Error in broadSearch for NBS (particle-wall)"<<endl;
+			return false;
+		}
+
+		return true;
+	}
+
+public:
+
+	TypeInfoNV("NBS");
+
+		NBS(
+			const dictionary& dict,
+			const box& domainBox,
+			real  	minBSSize,
+			real 	maxBSSize,
+			const deviceViewType1D<realx3> &position, 
+    		const pFlagTypeDevice &flags, 
+    		const deviceViewType1D<real> &diam, 
+			uint32 					nWallPoints,
+			uint32 					nWallElements,
+			const ViewType1D<realx3,memory_space>& 		wallPoints, 
+			const ViewType1D<uint32x3,memory_space>& 	wallVertices);
+		
+			
+		INLINE_FUNCTION_HD
+		NBS(const NBS&) = default;
+
+		INLINE_FUNCTION_HD
+		NBS(NBS&&) = default;
+
+		INLINE_FUNCTION_HD
+		NBS& operator = (const NBS&) = default;
+
+		INLINE_FUNCTION_HD
+		NBS& operator = (NBS&&) = default;
+
+		INLINE_FUNCTION_HD
+		~NBS()=default;
+
+
+	//// - Methods 
+
+		uint32 numLevels()const
+		{
+			return 1;
+		}
+
+		auto getCellIterator([[maybe_unused]] uint32 lvl)const
+		{
+			return NBSLevel0_.getCellIterator();
+		}
+
+		Vector<cells> getDomainCellsLevels()const
+		{
+			return Vector<cells>("Cells", 1, NBSLevel0_.getDomainCells());
+		}
+
+};
+
+}
+
+#endif

src/Interaction/contactSearch/methods/cellBased/NBS/NBSLevel0.cpp

@@ -0,0 +1,118 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "NBSLevel0.hpp"
+#include "streams.hpp"
+
+bool pFlow::NBSLevel0::findPairs
+(
+	csPairContainerType &pairs, 
+	const deviceViewType1D<realx3> &pointPos, 
+	const pFlagTypeDevice &flags, 
+	const deviceViewType1D<real> &diameter
+)
+{
+	uint32 getFull = 1;
+	
+	// loop until the container size fits the numebr of contact pairs
+	while (getFull > 0)
+	{
+
+		getFull = pFlow::NBSLevel0Kernels::findPairsCount
+		(
+			pairs,
+			sizeRatio_,
+			pointPos,
+			flags,
+			diameter, 
+			getCellIterator()
+		);
+	
+		if(getFull)
+		{
+			// - resize the container
+			//   note that getFull now shows the number of failed insertions.
+			uint32 len = max(getFull,500u) ;
+			
+			auto oldCap = pairs.capacity();
+			
+			pairs.increaseCapacityBy(len);
+
+			INFORMATION<< "The contact pair container capacity increased from "<<
+			oldCap << " to "<<pairs.capacity()<<" in NBSLevel0."<<END_INFO;
+			
+		}
+
+		Kokkos::fence();
+	}
+	
+	return true;
+}
+
+
+pFlow::NBSLevel0::NBSLevel0
+(
+    const 	box& domain,
+    real 	cellSize,
+    real  sizeRatio,
+    const deviceViewType1D<realx3>& pointPos,
+    const pFlagTypeDevice& flags,
+    bool 	adjustableBox
+)
+:
+    mapperNBS
+    (
+        domain,
+        cellSize,
+        pointPos,
+        flags,
+        adjustableBox,
+        true
+    ),
+    sizeRatio_(sizeRatio)
+{
+    
+}
+
+bool pFlow::NBSLevel0::broadSearch
+(
+	csPairContainerType &pairs, 
+	const deviceViewType1D<realx3> &pointPos, 
+	const pFlagTypeDevice &flags, 
+	const deviceViewType1D<real> &diameter,
+	bool& searchBoxChanged
+)
+{	
+	if(!build(pointPos, flags, searchBoxChanged))
+	{
+		fatalErrorInFunction;
+		return false;
+	}
+
+	if(!findPairs(pairs, pointPos, flags, diameter))
+	{
+		fatalErrorInFunction;
+		return false;
+	}
+
+	return true;
+}
+
+

src/Interaction/contactSearch/methods/cellBased/NBS/NBSLevel0.hpp

@@ -0,0 +1,98 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+
+#ifndef __NBSLevel0_hpp__
+#define __NBSLevel0_hpp__
+
+#include "NBSLevel0Kernels.hpp"
+#include "mapperNBS.hpp"
+
+namespace pFlow
+{
+
+
+class NBSLevel0
+:
+	public mapperNBS
+{
+public:
+
+	using MapperType 		= mapperNBS;
+
+	using CellIterator  	= typename MapperType::CellIterator;
+
+	using HeadType 			= typename MapperType::HeadType;
+
+	using NextType 			= typename MapperType::NextType;	
+
+	
+private:
+
+	real 		sizeRatio_ = 1.0;
+
+	bool findPairs
+	(
+		csPairContainerType& pairs,
+		const deviceViewType1D<realx3>& pointPos,
+    	const pFlagTypeDevice& flags,
+    	const deviceViewType1D<real>& diameter
+	);
+
+public:
+
+	TypeInfoNV("NBSLevel0");
+
+		INLINE_FUNCTION_HD
+		NBSLevel0() = default;
+
+		NBSLevel0(
+			const 	box& domain,
+			real 	cellSize,
+			real 	sizeRatio,
+			const 	deviceViewType1D<realx3>& pointPos,
+			const 	pFlagTypeDevice& flags,
+			bool 	adjustableBox);
+
+		INLINE_FUNCTION_HD
+		NBSLevel0(const NBSLevel0&) = default;
+
+		INLINE_FUNCTION_HD
+		NBSLevel0& operator = (const NBSLevel0&) = default;
+
+		INLINE_FUNCTION_HD
+		~NBSLevel0()=default;
+
+
+	bool broadSearch(
+		csPairContainerType& pairs,
+		const deviceViewType1D<realx3>& pointPos,
+    	const pFlagTypeDevice& flags,
+    	const deviceViewType1D<real>& diameter,
+		bool& searchBoxChanged);
+		
+	
+	
+
+};
+
+} // pFlow
+
+#endif // __NBSLevel0_hpp__

src/Interaction/contactSearch/methods/cellBased/NBS/NBSLevel0Kernels.hpp

@@ -0,0 +1,83 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "mapperNBS.hpp"
+#include "contactSearchGlobals.hpp"
+
+#include "streams.hpp"
+
+namespace pFlow::NBSLevel0Kernels
+{
+
+using mdrPolicyFindPairs = 
+		Kokkos::MDRangePolicy<
+			Kokkos::IndexType<uint32>,
+			Kokkos::Rank<3>,
+			Kokkos::Schedule<Kokkos::Dynamic>,
+			DefaultExecutionSpace>;
+
+template<typename T>
+INLINE_FUNCTION_HD
+void Swap(T& x, T& y)
+{
+	T tmp = x;
+	x = y;
+	y = tmp;
+}
+
+INLINE_FUNCTION_HD
+bool sphereSphereCheck(const realx3& p1, const realx3 p2, real d1, real d2)
+{
+	return length(p2-p1) < 0.5*(d2+d1);
+}
+
+inline
+uint32 findPairsCount
+(
+    csPairContainerType& pairs,
+    real 	sizeRatio,
+    const deviceViewType1D<realx3>& pointPos,
+    const pFlagTypeDevice& flags,
+    const deviceViewType1D<real>& diameter,
+    mapperNBS::CellIterator cellIter
+)
+{
+
+	auto nCells = cellIter.numCells();
+	
+	mdrPolicyFindPairs
+			mdrPolicy(
+				{0,0,0},
+				{nCells.x(), nCells.y(), nCells.z()} );
+
+	uint32 notInsertedPairs = 0u;
+	
+		
+	Kokkos::parallel_reduce	(
+		"pFlow::NBSLevel0Kernels::findPairsCount",
+		mdrPolicy,
+		LAMBDA_HD(uint32 i, uint32 j, uint32 k, uint32& getFullUpdate){
+			#include "NBSLoop.hpp"
+		}, notInsertedPairs);
+		
+	return notInsertedPairs;
+}
+
+}

src/Interaction/contactSearch/methods/cellBased/NBS/NBSLoop.hpp

@@ -0,0 +1,100 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+
+uint32 m = cellIter.start(i,j,k);
+int32x3 currentCell(i,j,k);
+uint32 n = mapperNBS::NoPos;
+
+while( m !=  mapperNBS::NoPos)
+{
+	
+	auto p_m = pointPos[m];	
+	auto d_m = sizeRatio* diameter[m];
+	
+	// the same cell
+	n = cellIter.getNext(m);
+	
+	while(n != mapperNBS::NoPos)
+	{
+		auto p_n = pointPos[n];
+		auto d_n = sizeRatio*diameter[n];
+		
+		if( sphereSphereCheck(p_m, p_n, d_m, d_n) )
+		{
+			auto ln = n;
+			auto lm = m;
+
+			if(lm>ln) Swap(lm,ln);
+			if( pairs.insert(lm,ln) == -1)
+			{
+				getFullUpdate++;
+			}
+		}
+		
+		n = cellIter.getNext(n);;
+	}
+
+	// neighbor cells
+	int32x3 neighborCell;
+	for(uint32 ni=0u; ni<13; ni++)
+	{
+		if(ni==0)		neighborCell = currentCell + int32x3( 0, 0,-1);
+		else if(ni==1)	neighborCell = currentCell + int32x3(-1, 0,-1);
+		else if(ni==2)	neighborCell = currentCell + int32x3(-1, 0, 0); 
+		else if(ni==3)	neighborCell = currentCell + int32x3(-1, 0, 1); 
+		else if(ni==4)	neighborCell = currentCell + int32x3( 0,-1,-1); 
+		else if(ni==5)	neighborCell = currentCell + int32x3( 0,-1, 0); 
+		else if(ni==6)	neighborCell = currentCell + int32x3( 0,-1, 1); 
+		else if(ni==7)	neighborCell = currentCell + int32x3(-1,-1,-1); 
+		else if(ni==8)	neighborCell = currentCell + int32x3(-1,-1, 0); 
+		else if(ni==9)	neighborCell = currentCell + int32x3(-1,-1, 1);
+		else if(ni==10)	neighborCell = currentCell + int32x3( 1,-1,-1);  
+		else if(ni==11)	neighborCell = currentCell + int32x3( 1,-1, 0);  
+		else if(ni==12)	neighborCell = currentCell + int32x3( 1,-1, 1);  
+		 
+		if( neighborCell.x()>=0 && neighborCell.y()>=0 && neighborCell.z()>=0 &&
+			neighborCell.x()<nCells.x() && neighborCell.y()<nCells.y() && neighborCell.z()<nCells.z() )
+		{
+			
+			n = cellIter.start(neighborCell.x(), neighborCell.y(), neighborCell.z());
+			while(n != mapperNBS::NoPos)
+			{
+				
+				auto p_n = pointPos[n];
+				auto d_n = sizeRatio*diameter[n];
+				
+				if(sphereSphereCheck(p_m, p_n, d_m, d_n))
+				{
+					auto ln = n;
+					auto lm = m;
+					if(lm>ln) Swap(lm,ln);
+					if( pairs.insert(lm,ln) == -1)
+					{
+						getFullUpdate++;
+					}
+				}
+				n = cellIter.next(n);
+			}
+		}
+	}
+	m = cellIter.next(m);
+}
+

src/Interaction/contactSearch/methods/cellBased/NBS/cellsWallLevel0.cpp

@@ -0,0 +1,195 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "cellsWallLevel0.hpp"
+#include "streams.hpp"
+
+pFlow::cellsWallLevel0::cellsWallLevel0
+(
+    real cellExtent, 
+    uint32 numPoints, 
+    uint32 numElements, 
+    const ViewType1D<realx3, 
+    memory_space> &points,
+    const ViewType1D<uint32x3, memory_space> &vertices
+)
+:
+    cellExtent_( max(cellExtent, 0.5 ) ),
+    numElements_(numElements),
+    numPoints_(numPoints),
+    vertices_(vertices),
+    points_(points)
+{
+
+    allocateArrays();
+}
+
+bool pFlow::cellsWallLevel0::resetElements
+(
+	uint32 numElements, 
+	uint32 numPoints, 
+	ViewType1D<realx3, memory_space> &points, 
+	ViewType1D<uint32x3, memory_space> &vertices
+)
+{
+
+	numElements_ = numElements;
+	numPoints_ = numPoints;
+	points_ 	= points;
+	vertices_ 	= vertices;
+
+	allocateArrays();
+
+	return true;
+}
+
+bool pFlow::cellsWallLevel0::broadSearch
+(
+	csPairContainerType &pairs,
+	const cells& searchBox,  
+	const mapperNBS::CellIterator &particleMap
+)
+{
+	
+	// map walls onto the cells
+	
+	this->build(searchBox);
+	
+	this->particleWallFindPairs(pairs, particleMap);
+	
+	return true;
+}
+
+bool pFlow::cellsWallLevel0::build(const cells & searchBox)
+{
+	
+	Kokkos::parallel_for(
+		"pFlow::cellsWallLevel0::build",
+		deviceRPolicyStatic(0,numElements_),
+		CLASS_LAMBDA_HD(uint32 i)
+		{
+			auto v = vertices_[i];
+			auto p1 = points_[v.x()];
+			auto p2 = points_[v.y()];
+			auto p3 = points_[v.z()];
+			
+			realx3 minP;
+			realx3 maxP;
+
+			searchBox.extendBox(p1, p2, p3, cellExtent_, minP, maxP);
+			elementBox_[i] = iBoxType(searchBox.pointIndex(minP), searchBox.pointIndex(maxP));
+		});
+	Kokkos::fence();
+
+	return true;
+}
+
+bool pFlow::cellsWallLevel0::particleWallFindPairs
+(
+	csPairContainerType &pairs, 
+	const mapperNBS::CellIterator &particleMap
+)
+{
+
+	uint32 getFull = 1;
+
+	while (getFull)
+	{
+		
+		getFull = findPairsElementRangeCount(pairs, particleMap);
+		
+		if(getFull)
+		{
+			// - resize the container
+			//   note that getFull now shows the number of failed insertions.
+			uint32 len = max(getFull, 50u);
+			auto oldCap = pairs.capacity();
+			pairs.increaseCapacityBy(len);
+
+			INFORMATION<<"Contact pair container capacity increased from "<<
+					oldCap << " to " 
+					<< pairs.capacity() <<" in cellsWallLevel0."<<END_INFO;
+			
+			Kokkos::fence();
+		}
+	}
+	
+	return true;
+}
+
+pFlow::int32 pFlow::cellsWallLevel0::findPairsElementRangeCount
+(
+	csPairContainerType &pairs, 
+	const mapperNBS::CellIterator &particleMap
+)
+{
+	uint32 getFull =0;
+	
+	//const auto pwPairs = pairs;
+	const auto elementBox = elementBox_;
+	
+	
+	Kokkos::parallel_reduce(
+		"pFlow::cellsWallLevel0::findPairsElementRangeCount",
+		tpPWContactSearch(numElements_, Kokkos::AUTO),
+		LAMBDA_HD(
+			const typename tpPWContactSearch::member_type & teamMember,
+			uint32& valueToUpdate){
+			
+			const uint32 iTri = teamMember.league_rank();
+
+			const auto triBox = elementBox[iTri];
+			
+			uint32 getFull2 = 0;
+
+			auto bExtent = boxExtent(triBox);
+			uint32 numCellBox = bExtent.x()*bExtent.y()*bExtent.z();
+
+			Kokkos::parallel_reduce( 
+				Kokkos::TeamThreadRange( teamMember, numCellBox ),
+				[&] ( const uint32 linIndex, uint32 &innerUpdate )
+					{
+						
+						int32x3 cell;
+						indexToCell(linIndex, triBox, cell);
+						
+						uint32 n = particleMap.start(cell.x(),cell.y(),cell.z());
+						
+						while( n != particleMap.NoPos)
+						{
+							// id is wall id the pair is (particle id, wall id)
+							if( pairs.insert(
+								static_cast<csIdType>(n),
+								static_cast<csIdType>(iTri) ) == -1 )
+								innerUpdate++;
+							n = particleMap.next(n);
+						
+						}
+
+					},
+				getFull2
+			);
+
+			if ( teamMember.team_rank() == 0 ) valueToUpdate += getFull2;
+		},
+		getFull
+		);
+	return getFull;
+}

src/Interaction/contactSearch/methods/cellBased/NBS/cellsWallLevel0.hpp

@@ -0,0 +1,139 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __cellsWallLevel0_hpp__
+#define __cellsWallLevel0_hpp__
+
+#include "contactSearchGlobals.hpp"
+#include "contactSearchFunctions.hpp"
+#include "mapperNBS.hpp"
+#include "iBox.hpp"
+
+
+
+namespace pFlow
+{
+
+class cellsWallLevel0
+{
+public:
+
+	using execution_space = csExecutionSpace;
+
+	using memory_space 	= typename execution_space::memory_space;
+
+	using iBoxType 		= iBox<int32>;	
+
+	class TagFindCellRange2{};
+
+private:
+
+	// - box extent
+	real 			cellExtent_ = 0.5;
+
+	// - number of triangle elements 
+	uint32			numElements_ = 0;
+
+	// - number of points
+	uint32 			numPoints_ = 0;
+
+	// - ref to vectices (borrowed)
+	ViewType1D<uint32x3, memory_space> 	vertices_;
+
+	// - ref to points in the trisurface (borrowed)
+	ViewType1D<realx3, memory_space> 	points_;
+
+	// cell range of element/triangle bounding box
+	ViewType1D<iBoxType, memory_space> 	elementBox_;
+	
+
+	using tpPWContactSearch = Kokkos::TeamPolicy<
+			execution_space,
+			Kokkos::Schedule<Kokkos::Dynamic>,
+			Kokkos::IndexType<uint32>>;
+	
+	FUNCTION_H
+	void allocateArrays()
+	{
+		reallocNoInit( elementBox_, numElements_);
+	}
+
+public:
+
+	TypeInfoNV("cellsWallLevel0");
+
+	INLINE_FUNCTION_HD
+	cellsWallLevel0(){}
+
+	FUNCTION_H
+	cellsWallLevel0(
+		real 					cellExtent,
+		uint32 					numPoints,
+		uint32 					numElements,
+		const ViewType1D<realx3,memory_space>& 		points, 
+		const ViewType1D<uint32x3,memory_space>& 	vertices);
+	
+
+	
+	// - host call
+	//   reset triangle elements if they have changed
+	bool resetElements( 
+		uint32 		numElements,
+		uint32      numPoints,
+		ViewType1D<realx3, memory_space>& points, 
+		ViewType1D<uint32x3, memory_space>& vertices);
+	
+
+	INLINE_FUNCTION_HD
+	iBoxType elementBox(uint32 i)const
+	{
+		return elementBox_[i];
+	}
+
+	INLINE_FUNCTION_HD
+	uint32 numElements()const
+	{
+		return numElements_;
+	}
+
+	bool broadSearch(
+		csPairContainerType& pairs,
+		const cells& searchBox, 
+		const mapperNBS::CellIterator& particleMap);
+	
+
+	bool build(const cells& searchBox);
+	
+	bool particleWallFindPairs(
+		csPairContainerType& pairs, 
+		const mapperNBS::CellIterator& particleMap);
+
+	int32 findPairsElementRangeCount(
+		csPairContainerType& pairs, 
+		const mapperNBS::CellIterator& particleMap); 
+	
+
+
+}; // cellsWallLevel0
+
+} // pFlow
+
+
+#endif // __cellsWallLevel0_hpp__

src/Interaction/contactSearch/methods/cellBased/NBS/mapperNBS.cpp

@@ -0,0 +1,194 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "mapperNBS.hpp"
+#include "mapperNBSKernels.hpp"
+#include "streams.hpp"
+
+pFlow::uint32 pFlow::mapperNBS::checkInterval_ = 1000;
+pFlow::real pFlow::mapperNBS::enlargementFactor_ = 1;
+
+bool pFlow::mapperNBS::setSearchBox
+(
+    const deviceViewType1D<realx3> &pointPos, 
+    const pFlagTypeDevice &flags,
+    real cellSize
+)
+{
+    box domainBox = domainCells_.domainBox();
+
+	
+    if(adjustableBox_)
+    {
+        lastCheckForBox_ = buildCount_;
+        
+        realx3 minP;
+        realx3 maxP;
+        pFlow::mapperNBSKernels::findPointExtends
+        (
+            pointPos, 
+            flags, 
+            minP, maxP
+        );
+
+        minP = max( minP - enlargementFactor_*cellSize, domainBox.minPoint());
+        maxP = min( maxP + enlargementFactor_*cellSize, domainBox.maxPoint());       
+        
+        box searchBox = {minP, maxP};
+        searchCells_ = cells(searchBox, cellSize);    
+        INFORMATION<<"Search box for contact search has changed: "<< 
+        "search box is ["<<searchCells_.domainBox().minPoint()<<
+        " "<<searchCells_.domainBox().maxPoint()<<"]"<<END_INFO;
+        
+        return true;
+        
+    }
+    else
+    {
+        searchCells_ = cells(domainBox, cellSize);
+        INFORMATION<<"Search box for contact search is: ["
+        << domainBox.minPoint()<<" "<<domainBox.maxPoint()<<"]"<<END_INFO;
+
+        return false;
+    }
+    
+}
+
+void pFlow::mapperNBS::allocateArrays(rangeU32 nextRng)
+{
+    checkAllocateNext(nextRng);
+    nullifyNext(nextRng);
+    reallocFill(head_, searchCells_.nx(), searchCells_.ny(), searchCells_.nz(), NoPos);
+}
+
+void pFlow::mapperNBS::checkAllocateNext(rangeU32 nextRng)
+{
+
+    auto newCap = nextRng.end();
+    
+    if( nextCapacity_ < newCap)
+    {
+        nextCapacity_ = newCap;	
+        if(!nextOwner_)return;
+        reallocNoInit(next_, nextCapacity_);
+    }
+}
+
+void pFlow::mapperNBS::nullifyHead()
+{
+    fill(head_, NoPos);	
+}
+
+void pFlow::mapperNBS::nullifyNext(rangeU32 nextRng)
+{
+    if(!nextOwner_)return;
+		fill(next_, nextRng, NoPos);
+}
+
+pFlow::mapperNBS::mapperNBS(
+    const box &domain,
+    real cellSize,
+    const deviceViewType1D<realx3> &pointPos,
+    const pFlagTypeDevice &flags,
+    bool adjustableBox,
+    bool nextOwner
+)
+: 
+   	domainCells_(domain, cellSize),
+    searchCells_(domain, cellSize),
+   	adjustableBox_(adjustableBox),
+	nextOwner_(nextOwner)
+{
+    setSearchBox(pointPos, flags, cellSize);
+
+    allocateArrays(flags.activeRange());
+}
+
+bool pFlow::mapperNBS::build
+(
+    const deviceViewType1D<realx3>& pointPos, 
+    const pFlagTypeDevice & flags,
+    bool&  searchBoxChanged
+)
+{
+    auto aRange = flags.activeRange();
+    buildCount_++;
+    if(adjustableBox_ && buildCount_%checkInterval_ == 0)
+    {   
+
+        if(searchBoxChanged = 
+            setSearchBox(pointPos, flags, searchCells_.cellSize());searchBoxChanged)
+        {
+            allocateArrays(aRange);
+        }  
+        
+    }
+    else
+    {
+        checkAllocateNext(aRange);
+        nullifyHead();
+        nullifyNext(aRange);
+    }    
+    
+    if( adjustableBox_ )
+    {
+        if(!pFlow::mapperNBSKernels::buildListsReduce(
+            searchCells_,
+            head_,
+            next_,
+            pointPos,
+            flags) )
+        {
+
+            buildCount_++;           
+            setSearchBox(pointPos, flags, searchCells_.cellSize());
+            
+            searchBoxChanged = true;
+            
+            allocateArrays(flags.activeRange());
+
+            if(!pFlow::mapperNBSKernels::buildListsReduce(
+                searchCells_,
+                head_,
+                next_,
+                pointPos,
+                flags))
+            {
+                fatalErrorInFunction<<"failed to build list in anjustable search box mode!"<<endl;
+                return false;   
+            }
+        }
+    }
+    else
+    {
+        pFlow::mapperNBSKernels::buildLists(
+            searchCells_,
+            head_,
+            next_,
+            pointPos,
+            flags
+        );
+        searchBoxChanged = false;
+    }
+    
+    return true;
+
+}
+

src/Interaction/contactSearch/methods/cellBased/NBS/mapperNBS.hpp

@@ -0,0 +1,212 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+
+#ifndef __mapperNBS_hpp__
+#define __mapperNBS_hpp__
+
+#include "phasicFlowKokkos.hpp"
+#include "pointFlag.hpp"
+#include "cells.hpp"
+//#include "contactSearchFunctions.hpp"
+
+
+namespace pFlow
+{
+
+class mapperNBS
+{
+public:
+
+	using HeadType 			= deviceViewType3D<uint32>;
+
+	using NextType 			= deviceViewType1D<uint32>;	
+
+	
+	static constexpr uint32 NoPos 	= 0xFFFFFFFF;
+
+	class CellIterator
+	{
+	private:
+		HeadType 		head_;
+
+		NextType 		next_;
+
+	public:
+
+		CellIterator(const HeadType& head, const NextType& next)
+		:
+			head_(head),
+			next_(next)
+		{}
+		
+		static constexpr uint32 NoPos = 0xFFFFFFFF;
+
+		INLINE_FUNCTION_HD
+		int32x3 numCells()const {
+			return int32x3(head_.extent(0), head_.extent(1), head_.extent(2));}
+
+		INLINE_FUNCTION_HD
+		uint32 start(int32 i, int32 j, int32 k)const {
+			return head_(i,j,k); }
+
+		INLINE_FUNCTION_HD
+		uint32 getNext(uint32 n)const {
+			if(n == NoPos ) return NoPos;
+			return next_(n); }
+
+		INLINE_FUNCTION_HD
+		uint32 next(uint32 n)const{
+			return next_(n);}
+	};
+
+private:
+	
+	cells  				domainCells_;
+
+	cells 				searchCells_;
+
+	HeadType 			head_{"NBS::head",1,1,1};
+
+	NextType 			next_{"NBS::next", 1};
+
+	uint32 				nextCapacity_ = 0;
+
+	uint32 				lastCheckForBox_ = 0;
+
+	uint32 				buildCount_ = 0;
+
+	bool 				adjustableBox_ = false;
+
+	bool 				nextOwner_ 	= true;
+
+	static uint32 		checkInterval_;	
+
+	static real 		enlargementFactor_;
+
+	bool setSearchBox(
+		const deviceViewType1D<realx3>& pointPos,
+		const pFlagTypeDevice& flags,
+		real cellSize
+	);
+
+	void allocateArrays(rangeU32 nextRng);
+
+	void checkAllocateNext(rangeU32 nextRng);
+	
+	void nullifyHead();
+	
+	void nullifyNext(rangeU32 nextRng);
+	
+public:
+
+	TypeInfoNV("mapperNBS");
+
+		INLINE_FUNCTION_HD
+		mapperNBS() = default;
+
+		mapperNBS(
+			const 	box& domain,
+			real 	cellSize,
+			const deviceViewType1D<realx3>& pointPos,
+			const pFlagTypeDevice& flags,
+			bool 	adjustableBox,
+			bool 	nextOwner = true);
+					
+		INLINE_FUNCTION_HD
+		mapperNBS(const mapperNBS&) = default;
+
+		INLINE_FUNCTION_HD
+		mapperNBS(mapperNBS&&) = default;
+		
+		INLINE_FUNCTION_HD
+		mapperNBS& operator = (const mapperNBS&) = default;
+
+		INLINE_FUNCTION_HD
+		mapperNBS& operator = (mapperNBS&&) = default;
+
+		INLINE_FUNCTION_HD
+		~mapperNBS()=default;
+
+	//// - Methods
+
+		auto getCellIterator()const
+		{
+			return CellIterator(head_, next_);
+		}
+
+		const auto& getDomainCells()const
+		{
+			return domainCells_;
+		}
+
+		const auto& getSearchCells()const
+		{
+			return searchCells_;
+		}
+
+		bool build(
+			const deviceViewType1D<realx3>& pointPos,
+			const pFlagTypeDevice& flags,
+			bool&  searchBoxChanged);
+
+		
+	
+
+};
+
+} // pFlow
+
+#endif // __mapperNBS_hpp__
+
+
+
+
+/*
+INLINE_FUNCTION_HD
+	auto& head()
+	{
+		return head_;
+	}
+
+	INLINE_FUNCTION_HD
+	auto& next()
+	{
+		return next_;
+	}
+
+	INLINE_FUNCTION_HD
+	const auto& head()const
+	{
+		return head_;
+	}
+
+	INLINE_FUNCTION_HD
+	const auto& next()const
+	{
+		return next_;
+	}
+
+	INLINE_FUNCTION_HD
+	auto& pointPosition()
+	{
+		return pointPosition_;
+	}
+*/

src/Interaction/contactSearch/methods/cellBased/NBS/mapperNBSKernels.cpp

@@ -0,0 +1,192 @@
+
+
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#include "mapperNBSKernels.hpp"
+
+
+void pFlow::mapperNBSKernels::findPointExtends
+(
+    const deviceViewType1D<realx3>& points,
+    const pFlagTypeDevice& flags,
+    realx3& minPoint,
+    realx3& maxPoint
+)
+{
+    if(flags.numActive() == 0)
+    {
+        minPoint = {0,0,0};
+        maxPoint = {0,0,0};
+        return;
+    }
+
+    real minX;
+    real minY;
+    real minZ;
+    real maxX;
+    real maxY;
+    real maxZ;
+    auto aRange = flags.activeRange();
+    Kokkos::parallel_reduce(
+        "pFlow::mapperNBSKernels::findPointExtends",
+        deviceRPolicyStatic(aRange.start(), aRange.end()),
+        LAMBDA_HD(
+            uint32 i, 
+            real& minXUpdate, 
+            real& minYUpdate, 
+            real& minZUpdate,
+            real& maxXUpdate,
+            real& maxYUpdate,
+            real& maxZUpdate)
+        {
+            if(flags(i))
+            {
+                auto p = points(i);
+                minXUpdate = min(p.x(), minXUpdate);
+                minYUpdate = min(p.y(), minYUpdate);
+                minZUpdate = min(p.z(), minZUpdate);
+                maxXUpdate = max(p.x(), maxXUpdate);
+                maxYUpdate = max(p.y(), maxYUpdate);
+                maxZUpdate = max(p.z(), maxZUpdate);
+            }
+
+        },
+        Kokkos::Min<real>(minX),
+        Kokkos::Min<real>(minY), 
+        Kokkos::Min<real>(minZ),
+        Kokkos::Max<real>(maxX),
+        Kokkos::Max<real>(maxY),
+        Kokkos::Max<real>(maxZ)
+    );
+
+    minPoint = {minX, minY, minZ};
+    maxPoint = {maxX, maxY, maxZ};
+}
+
+bool pFlow::mapperNBSKernels::buildListsReduce
+(
+    const cells &searchCell, 
+    const deviceViewType3D<uint32> &head, 
+    const deviceViewType1D<uint32> &next, 
+    const deviceViewType1D<realx3> &points, 
+    const pFlagTypeDevice &flags
+)
+{
+    uint32 numOut = 0;
+    auto aRange = flags.activeRange();
+
+    if(flags.isAllActive())
+    {
+        Kokkos::parallel_reduce
+        (
+            "pFlow::mapperNBSKernels::buildListsReduce",
+            deviceRPolicyStatic(aRange.start(), aRange.end()),
+            LAMBDA_HD(uint32 i, uint32& valToUpdate)
+            {	
+                int32x3 ind;
+                if( searchCell.pointIndexInDomain(points[i], ind) )
+                {
+                    uint32 old = Kokkos::atomic_exchange(&head(ind.x(), ind.y(), ind.z()), i);
+                    next[i] = old;	
+                }
+                else
+                {
+                    valToUpdate++;
+                }
+            },
+            numOut
+        );
+    }
+    else
+    {
+        Kokkos::parallel_reduce
+        (
+            "pFlow::mapperNBSKernels::buildListsReduce",
+            deviceRPolicyStatic(aRange.start(), aRange.end()),
+            LAMBDA_HD(uint32 i, uint32& valToUpdate)
+            {	
+                int32x3 ind;
+                if( flags(i) )
+                {
+                    if( searchCell.pointIndexInDomain(points[i], ind) )
+                    {
+                        uint32 old = Kokkos::atomic_exchange(&head(ind.x(), ind.y(), ind.z()), i);
+                        next[i] = old;	
+                    }
+                    else
+                    {
+                        valToUpdate++;
+                    }
+                }
+            },
+            numOut
+        );
+    }
+
+    return numOut == 0u ;
+}
+
+bool pFlow::mapperNBSKernels::buildLists
+(
+    const cells &searchCell, 
+    const deviceViewType3D<uint32> &head, 
+    const deviceViewType1D<uint32> &next, 
+    const deviceViewType1D<realx3> &points, 
+    const pFlagTypeDevice &flags
+)
+{
+    auto aRange = flags.activeRange();
+    if(flags.isAllActive() )
+    {
+        Kokkos::parallel_for
+        (
+            "pFlow::mapperNBSKernels::buildLists",
+            deviceRPolicyStatic(aRange.start(), aRange.end()),
+            LAMBDA_HD(uint32 i)
+            {
+                auto ind = searchCell.pointIndex(points[i]);	
+                uint32 old = Kokkos::atomic_exchange(&head(ind.x(), ind.y(), ind.z()), i);
+                next[i] = old;
+            }
+        );
+        Kokkos::fence();    
+    }
+    else
+    {
+       Kokkos::parallel_for
+        (
+            "pFlow::mapperNBSKernels::buildLists",
+            deviceRPolicyStatic(aRange.start(), aRange.end()),
+            LAMBDA_HD(uint32 i)
+            {
+                if( flags(i) )
+                {
+                    auto ind = searchCell.pointIndex(points[i]);	
+                    uint32 old = Kokkos::atomic_exchange(&head(ind.x(), ind.y(), ind.z()), i);
+                    next[i] = old;
+                }
+            }
+        );
+        Kokkos::fence();
+    }
+
+    return true;
+}

src/Interaction/contactSearch/methods/cellBased/NBS/mapperNBSKernels.hpp

@@ -18,42 +18,32 @@ Licence:
 
 -----------------------------------------------------------------------------*/
 
-#ifndef __demInteraction_hpp__
+#include "phasicFlowKokkos.hpp"
-#define __demInteraction_hpp__
+#include "cells.hpp"
+#include "pointFlag.hpp"
 
-#include "property.hpp"
-#include "demComponent.hpp"
-#include "pointFields.hpp"
-#include "triSurfaceFields.hpp"
 
-namespace pFlow
+namespace pFlow::mapperNBSKernels
 {
 
-class demInteraction
+void findPointExtends(
-:
+    const deviceViewType1D<realx3>& points,
-	public property,
+    const pFlagTypeDevice& flags,
-	public demComponent
+    realx3& minPoint,
-{
+    realx3& maxPoint);
-protected:
 
-public:
+bool buildListsReduce(
-	demInteraction(systemControl& control)
+    const cells& searchCell,
-	:
+    const deviceViewType3D<uint32>& head,
-		property(),
+    const deviceViewType1D<uint32>& next,
-		demComponent("interaction", control)
+    const deviceViewType1D<realx3>& points,
-	{}
+    const pFlagTypeDevice& flags);
-
-	demInteraction(systemControl& control, const fileSystem& file)
-	:
-		property(file),
-		demComponent("interaction", control)
-	{}
-
-
-
-};
 
+bool buildLists(
+    const cells& searchCell,
+    const deviceViewType3D<uint32>& head,
+    const deviceViewType1D<uint32>& next,
+    const deviceViewType1D<realx3>& points,
+    const pFlagTypeDevice& flags);
 
 }
-
-#endif //__interaction_hpp__ 

src/Interaction/contactSearch/methods/cellBased/cells.hpp

@@ -28,58 +28,40 @@ Licence:
 namespace pFlow
 {
 
-template<typename indexType>
 class cells
 {
-public:
+private:
-	
-	using CellType = triple<indexType>;
-
-protected:
 
 	// - domain 
-	box 		domain_{realx3(0.0), realx3(1.0)};
+	box 		domainBox_{realx3(0.0), realx3(1.0)};
 
 	// - cell size 
-	realx3 		cellSize_{1,1,1};
+	real 		celldx_{1};
-
-	CellType 	numCells_{1,1,1};
 
+	int32x3 	numCells_{1,1,1};
 	
 	// - protected methods
 	INLINE_FUNCTION_H
 	void calculate()
 	{
-		numCells_ = (domain_.maxPoint()-domain_.minPoint())/cellSize_ + realx3(1.0);
+		numCells_ = (domainBox_.maxPoint()-domainBox_.minPoint())/celldx_ + realx3(1.0);
-		numCells_ = max( numCells_ , CellType(static_cast<indexType>(1)) );
+		numCells_ = max( numCells_ , int32x3(1) );
 	}
 
 public:
 
 	INLINE_FUNCTION_HD
-	cells()
+	cells() = default;
-	{}
 
 	INLINE_FUNCTION_H
 	cells(const box& domain, real cellSize)
 	:
-		domain_(domain),
+		domainBox_(domain),
-		cellSize_(cellSize)
+		celldx_(cellSize)
 	{
 		calculate();
 	}
 
- 
-	INLINE_FUNCTION_H
-	cells(const box& domain, int32 nx, int32 ny, int32 nz)
-	:
-		domain_(domain),
-		cellSize_(
-			(domain_.maxPoint() - domain_.minPoint())/realx3(nx, ny,  nz)
-			),
-		numCells_(nx, ny, nz)
-	{}
-
 	INLINE_FUNCTION_HD
 	cells(const cells&) = default;
 
@@ -100,43 +82,36 @@ public:
 	INLINE_FUNCTION_H
 	void setCellSize(real cellSize)
 	{
-		cellSize_ = cellSize;
+		celldx_ = cellSize;
-		calculate();
-	}
-
-	INLINE_FUNCTION_H
-	void setCellSize(realx3 cellSize)
-	{
-		cellSize_ = cellSize;
 		calculate();
 	}
 
 	INLINE_FUNCTION_HD
-	realx3 cellSize()const
+	real cellSize()const
 	{
-		return cellSize_;
+		return celldx_;
 	}
 
 	INLINE_FUNCTION_HD
-	const CellType& numCells()const
+	const int32x3& numCells()const
 	{
 		return numCells_;
 	}
 
 	INLINE_FUNCTION_HD
-	indexType nx()const
+	int32 nx()const
 	{
 		return numCells_.x();
 	}
 
 	INLINE_FUNCTION_HD
-	indexType ny()const
+	int32 ny()const
 	{
 		return numCells_.y();
 	}
 
 	INLINE_FUNCTION_HD
-	indexType nz()const
+	int32 nz()const
 	{
 		return numCells_.z();
 	}
@@ -149,22 +124,21 @@ public:
 				static_cast<int64>(numCells_.z());
 	}
 
-	const auto& domain()const
+	const auto& domainBox()const
 	{
-		return domain_;
+		return domainBox_;
 	}
 	
 	INLINE_FUNCTION_HD
-	CellType pointIndex(const realx3& p)const
+	int32x3 pointIndex(const realx3& p)const
 	{
-		return CellType( (p - domain_.minPoint())/cellSize_ );
+		return int32x3( (p - domainBox_.minPoint())/celldx_ );
 	}
 
 	INLINE_FUNCTION_HD
-	bool pointIndexInDomain(const realx3 p, CellType& index)const
+	bool pointIndexInDomain(const realx3 p, int32x3& index)const
 	{
-		if( !domain_.isInside(p) ) return false;
+		if(!inDomain(p))return false;
-		
 		index = this->pointIndex(p);
 		return true;
 	}
@@ -172,11 +146,11 @@ public:
 	INLINE_FUNCTION_HD
 	bool inDomain(const realx3& p)const
 	{	
-		return domain_.isInside(p);
+		return domainBox_.isInside(p);
 	}
 
 	INLINE_FUNCTION_HD
-	bool isInRange(const CellType& cell)const
+	bool inCellRange(const int32x3& cell)const
 	{
 		if(cell.x()<0)return false;
 		if(cell.y()<0)return false;
@@ -188,7 +162,7 @@ public:
 	}
 
 	INLINE_FUNCTION_HD
-	bool isInRange(indexType i, indexType j, indexType k)const
+	bool inCellRange(int32 i, int32 j, int32 k)const
 	{
 		if(i<0)return false;
 		if(j<0)return false;
@@ -199,21 +173,6 @@ public:
 		return true;
 	}
 
-	INLINE_FUNCTION_HD
-	void extendBox(
-		const CellType& p1,
-		const CellType& p2,
-		const CellType& p3,
-		indexType extent,
-		CellType& minP,
-		CellType& maxP)const
-	{
-		minP = min( min( p1, p2), p3)-extent;
-		maxP = max( max( p1, p2), p3)+extent;
-
-		minP = bound(minP);
-		maxP = bound(maxP);
-	}
 	
 	INLINE_FUNCTION_HD
 	void extendBox(
@@ -224,17 +183,17 @@ public:
 		realx3& minP,
 		realx3& maxP)const
 	{
-		minP = min(min(p1,p2),p3) - extent*cellSize_ ;
+		minP = min(min(p1,p2),p3) - extent*celldx_ ;
-		maxP = max(max(p1,p2),p3) + extent*cellSize_ ;
+		maxP = max(max(p1,p2),p3) + extent*celldx_ ;
 
 		minP = bound(minP);
 		maxP = bound(maxP);
 	}
 
 	INLINE_FUNCTION_HD
-	CellType bound(CellType p)const
+	int32x3 bound(int32x3 p)const
 	{
-		return CellType(
+		return int32x3(
 			min( numCells_.x()-1, max(0,p.x())),
 			min( numCells_.y()-1, max(0,p.y())),
 			min( numCells_.z()-1, max(0,p.z()))
@@ -245,9 +204,9 @@ public:
 	realx3 bound(realx3 p)const
 	{
 		return realx3(
-			min( domain_.maxPoint().x(), max(domain_.minPoint().x(),p.x())),
+			min( domainBox_.maxPoint().x(), max(domainBox_.minPoint().x(),p.x())),
-			min( domain_.maxPoint().y(), max(domain_.minPoint().y(),p.y())),
+			min( domainBox_.maxPoint().y(), max(domainBox_.minPoint().y(),p.y())),
-			min( domain_.maxPoint().z(), max(domain_.minPoint().z(),p.z()))
+			min( domainBox_.maxPoint().z(), max(domainBox_.minPoint().z(),p.z()))
 			);
 	}
 };	

src/Interaction/contactSearch/methods/mapperNBS.hpp

@@ -1,389 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-
-#ifndef __mapperNBS_hpp__
-#define __mapperNBS_hpp__
-
-#include "cells.hpp"
-#include "contactSearchFunctions.hpp"
-#include "baseAlgorithms.hpp"
-#include "ViewAlgorithms.hpp"
-
-namespace pFlow
-{
-
-template<typename executionSpace>
-class mapperNBS
-:
-	public cells<int32>
-{
-public:
-
-	using IdType 			= int32;
-	
-	using IndexType 	= int32;
-
-	using Cells 			= cells<IndexType>;
-
-	using CellType 		= typename Cells::CellType;
-
-	using execution_space = executionSpace;
-
-	using memory_space 		= typename execution_space::memory_space;
-
-	using HeadType 		= ViewType3D<int32, memory_space>;
-
-	using NextType 		= ViewType1D<int32, memory_space>;	
-
-	class cellIterator
-	{
-	private:
-		HeadType 		head_;
-
-		NextType 		next_;
-
-	public:
-
-		cellIterator(ViewType3D<int32, memory_space> head, ViewType1D<int32, memory_space> next)
-		:
-			head_(head),
-			next_(next)
-		{}
-
-		INLINE_FUNCTION_HD
-		Cells cellsSize()const {
-			return Cells(head_.extent(0), head_.extent(1), head_.extent(2));}
-
-		INLINE_FUNCTION_HD
-		int32 start(IndexType i, IndexType j, IndexType k)const {
-			return head_(i,j,k); }
-
-		INLINE_FUNCTION_HD
-		int32 getNext(int32 n)const {
-			if(n<0) return n;
-			return next_(n); }
-	};
-
-protected:
-
-	int32 									capacity_ = 1;
-
-	ViewType3D<int32, memory_space> 		head_;
-
-	ViewType1D<int32, memory_space> 		next_;
-
-	bool 									nextOwner_ = true;
-
-	// borrowed ownership
-	ViewType1D<realx3, memory_space> 		pointPosition_;
-
-	using rangePolicyType	=
-		Kokkos::RangePolicy<
-			Kokkos::IndexType<int32>,
-			Kokkos::Schedule<Kokkos::Static>,
-			execution_space>;
-	
-	INLINE_FUNCTION_H
-	void nullifyHead()
-	{
-		fill(
-			head_,
-			range(0,this->nx()),
-			range(0,this->ny()),
-			range(0,this->nz()),
-			static_cast<int32>(-1)
-			);
-	}
-
-	void nullifyNext(range nextRng)
-	{
-		if(!nextOwner_)return;
-		fill(
-			next_,
-			nextRng,
-			static_cast<int32>(-1)
-			);
-	}
-
-	void nullify()
-	{
-		nullifyHead();
-
-		nullifyNext(range(0,capacity_));
-	}
-
-	void nullify(range nextRng)
-	{
-		nullifyHead();
-
-		nullifyNext(nextRng);
-	}
-	
-
-	void checkAllocateNext(int newCap)
-	{
-		if( capacity_ < newCap)
-		{
-			capacity_ = newCap;	
-			if(!nextOwner_)return;
-			reallocNoInit(next_, capacity_);
-		}
-	}
-
-	void allocateHead()
-	{
-		reallocNoInit(head_, this->nx(), this->ny(), this->nz());
-	}
-
-
-	
-public:
-
-	TypeInfoNV("mapperNBS");
-
-		INLINE_FUNCTION_HD
-		mapperNBS(){}
-
-		mapperNBS(
-			const 	box& domain,
-			real 	cellSize,
-			const 	ViewType1D<realx3, memory_space>& position,
-			bool 	nextOwner = true)
-		:
-			Cells(domain, cellSize),
-			pointPosition_(position),
-			head_(
-				"mapperNBS::head_",
-				this->nx(),
-				this->ny(),
-				this->nz()
-				), 
-			next_("mapperNBS::next_",1), //,position.size()),
-			nextOwner_(nextOwner)
-		{
-			checkAllocateNext(pointPosition_.size());
-		}
-
-		mapperNBS(
-			const 	box& domain,
-			int32 	nx,
-			int32 	ny,
-			int32 	nz,
-			const 	ViewType1D<realx3, memory_space>& position,
-			bool 	nextOwner = true)
-		:
-			Cells(domain, nx, ny, nz),
-			pointPosition_(position),
-			head_("mapperNBS::head_",nx,ny,nz), 
-			next_("mapperNBS::next_",1),
-			nextOwner_(nextOwner)
-		{
-			checkAllocateNext(pointPosition_.size());
-		}
-
-			
-		INLINE_FUNCTION_HD
-		mapperNBS(const mapperNBS&) = default;
-
-		INLINE_FUNCTION_HD
-		mapperNBS& operator = (const mapperNBS&) = default;
-
-		INLINE_FUNCTION_HD
-		~mapperNBS()=default;
-
-	//// - Methods 
-	INLINE_FUNCTION_HD
-	auto capacity()const
-	{
-		return capacity_;
-	}
-
-	cellIterator getCellIterator()const
-	{
-		return cellIterator(head_, next_);
-	}
-
-	bool particlesCapcityChanged(int32 newCap)
-	{
-		checkAllocateNext(newCap);
-		return true;
-	}
-
-	INLINE_FUNCTION_HD
-	auto& head()
-	{
-		return head_;
-	}
-
-	INLINE_FUNCTION_HD
-	auto& next()
-	{
-		return next_;
-	}
-
-	INLINE_FUNCTION_HD
-	const auto& head()const
-	{
-		return head_;
-	}
-
-	INLINE_FUNCTION_HD
-	const auto& next()const
-	{
-		return next_;
-	}
-
-	INLINE_FUNCTION_HD
-	auto& pointPosition()
-	{
-		return pointPosition_;
-	}
-
-	INLINE_FUNCTION_H
-	void setNext(ViewType1D<int32, memory_space>& next)
-	{
-		if(!nextOwner_)
-		{
-			next_ = next;
-			capacity_ = next.size();
-		}
-	}
-
-	
-
-	// - build based on all points in active range
-	INLINE_FUNCTION_H
-	void build(range activeRange)
-	{
-		checkAllocateNext(activeRange.second);
-		nullify(activeRange);
-		
-		Cells cellIndex = static_cast<Cells>(*this);
-		auto points = pointPosition_;
-		auto next = next_;
-		auto head = head_;
-
-		rangePolicyType rPolicy(activeRange.first, activeRange.second);
-		
-		Kokkos::parallel_for(
-			"mapperNBS::build",
-			rPolicy,
-			LAMBDA_HD(int32 i){
-				CellType ind = cellIndex.pointIndex(points[i]);	
-				int32 old = Kokkos::atomic_exchange(&head(ind.x(), ind.y(), ind.z()), i);
-				next[i] = old;
-			});
-		Kokkos::fence();
-	}
-
-
-	template<typename IncludeFunction>
-	INLINE_FUNCTION_H
-	void build(range activeRange, IncludeFunction incld)
-	{
-		checkAllocateNext(activeRange.second);
-		nullify(activeRange);
-
-		Cells cellIndex = static_cast<Cells>(*this);
-		auto points = pointPosition_;
-		auto next = next_;
-		auto head = head_;
-
-		rangePolicyType rPolicy(activeRange.first, activeRange.second);
-
-		Kokkos::parallel_for(
-			"mapperNBS::build_Include",
-			rPolicy,
-			LAMBDA_HD(int32 i){
-				if( incld(i) )
-				{
-					CellType ind = cellIndex.pointIndex(points[i]);
-					auto old = Kokkos::atomic_exchange(&head(ind.x(), ind.y(), ind.z()), i);
-					next[i] = old;
-				}
-			});
-		Kokkos::fence();
-
-	}
-
-	
-	INLINE_FUNCTION_H
-	void buildCheckInDomain(range activeRange)
-	{
-		checkAllocateNext(activeRange.second);
-		nullify(activeRange);
-		
-		Cells cellIndex = static_cast<Cells>(*this);
-		auto points = pointPosition_;
-		auto next = next_;
-		auto head = head_;
-
-		rangePolicyType rPolicy(activeRange.first, activeRange.second);
-		
-		Kokkos::parallel_for(
-			"mapperNBS::buildCheckInDomain",
-			rPolicy,
-			LAMBDA_HD(int32 i){	
-				CellType ind;
-				if( cellIndex.pointIndexInDomain(points[i], ind) )
-				{
-					int32 old = Kokkos::atomic_exchange(&head(ind.x(), ind.y(), ind.z()), i);
-					next[i] = old;	
-				}
-			});
-
-		Kokkos::fence();
-
-	}
-
-	template<typename IncludeFunction>
-	INLINE_FUNCTION_H
-	void buildCheckInDomain(range activeRange, IncludeFunction incld)
-	{
-		checkAllocateNext(activeRange.second);
-		nullify(activeRange);
-
-		Cells cellIndex = static_cast<Cells>(*this);
-		auto points = pointPosition_;
-		auto next = next_;
-		auto head = head_;
-
-		rangePolicyType rPolicy(activeRange.first, activeRange.second);
-
-		Kokkos::parallel_for(
-			"mapperNBS::buildCheckInDomain_Include",
-			rPolicy,
-			LAMBDA_HD(int32 i){
-				CellType ind;
-				if( incld(i) && cellIndex.pointIndexInDomain(points[i], ind) )
-				{
-					auto old = Kokkos::atomic_exchange(&head(ind.x(), ind.y(), ind.z()), i);
-					next[i] = old;
-				}
-			});
-		Kokkos::fence();
-	}
-
-};
-
-} // pFlow
-
-#endif // __mapperNBS_hpp__

src/Interaction/contactSearch/methods/multiGridNBS.hpp

@@ -1,213 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-
-#ifndef __multiGridNBS_hpp__
-#define __multiGridNBS_hpp__
-
-#include "NBSLevels.hpp"
-
-namespace pFlow
-{
-
-
-template<typename executionSpace>
-class multiGridNBS
-{
-public:
-
-	using NBSLevelsType	= NBSLevels<executionSpace>;
-
-	using cellIterator 	= typename NBSLevelsType::cellIterator;
-
-	using IdType 		= typename NBSLevelsType::IdType;
-	
-	using IndexType 	= typename NBSLevelsType::IndexType;
-
-	using Cells 		= typename NBSLevelsType::Cells;
-
-	using CellType 		= typename Cells::CellType;
-
-	using execution_space 	= typename NBSLevelsType::execution_space;
-
-	using memory_space 		= typename NBSLevelsType::memory_space;
-
-
-protected:
-
-	real 		sizeRatio_ = 1.0;
-
-	int32 		updateFrequency_= 1;
-
-	int32 		currentIter_ 	= 0;
-
-	bool 		performedSearch_ = false;
-
-	NBSLevelsType NBSLevels_;
-
-private:
-
-	bool performSearch()
-	{
-		if(currentIter_ % updateFrequency_ == 0)
-		{
-			currentIter_++;
-			return true;
-
-		}else
-		{
-			currentIter_++;
-			return false;
-		}
-	}
-
-public:
-
-	TypeInfoNV("multiGridNBS");
-
-		multiGridNBS(
-			const 	dictionary& dict,
-			const 	box& domain,
-			real 	minSize,
-			real 	maxSize,
-			const 	ViewType1D<realx3, memory_space>& position,
-			const 	ViewType1D<real, memory_space>& diam)
-		:
-			sizeRatio_( 
-				max(
-					dict.getVal<real>("sizeRatio"),
-					1.0
-					)),
-			updateFrequency_(
-				max( 
-					dict.getVal<int32>("updateFrequency"),
-					1
-					)),
-			NBSLevels_(
-				domain, 
-				minSize,
-				maxSize,
-				sizeRatio_,
-				position,
-				diam)
-		{}
-			
-		INLINE_FUNCTION_HD
-		multiGridNBS(const multiGridNBS&) = default;
-
-		INLINE_FUNCTION_HD
-		multiGridNBS& operator = (const multiGridNBS&) = default;
-
-		INLINE_FUNCTION_HD
-		~multiGridNBS()=default;
-
-	//// - Methods 
-
-	bool enterBoadSearch()const
-	{
-		return currentIter_%updateFrequency_==0;
-	}
-
-	bool performedSearch()const
-	{
-		return performedSearch_;
-	}
-
-	int32 numLevels()const
-	{
-		return NBSLevels_.numLevels();
-	}
-
-	auto getCellsLevels()const
-	{
-		Vector<Cells> cellsLvl("cells", numLevels(), numLevels(), RESERVE());
-
-		for(int32 lvl=0; lvl<numLevels(); lvl++)
-		{
-			cellsLvl[lvl] = NBSLevels_.getCells(lvl) ;
-		}
-
-		return cellsLvl;
-	}
-
-	auto getCells(int32 lvl)const
-	{
-		return NBSLevels_.getCells(lvl);
-	}
-
-	auto getCellIterator(int32 lvl)const
-	{
-		return NBSLevels_.getCellIterator(lvl);	
-	}
-
-	bool objectSizeChanged(int32 newSize)
-	{
-		NBSLevels_.checkAllocateNext(newSize);
-		return true;
-	}
-
-	// - Perform the broad search to find pairs
-	//	 with force = true, perform broad search regardless of 
-	//   updateFrequency_ value
-	//   on all the points in the range of [0,numPoints_)
-	template<typename PairsContainer>
-	bool broadSearch(PairsContainer& pairs, range activeRange, bool force=false)
-	{
-		
-		if(force) currentIter_ = 0;
-		performedSearch_ = false;
-
-		if( !performSearch() ) return true;
-		
-		
-		NBSLevels_.build(activeRange);
-		
-		NBSLevels_.findPairs(pairs);
-		
-		
-		performedSearch_ = true;		
-		return true;
-	}
-
-	// - Perform the broad search to find pairs,
-	//   ignore particles with incld(i) = true,
-	//	 with force = true, perform broad search regardless of 
-	//   updateFrequency_ value
-	template<typename PairsContainer, typename IncludeFunction>
-	bool broadSearch(PairsContainer& pairs, range activeRange, IncludeFunction incld, bool force = false)
-	{
-		if(force) currentIter_ = 0;
-		performedSearch_ = false;
-
-		if( !performSearch() ) return true;
-
-		NBSLevels_.build(activeRange, incld);
-	
-		NBSLevels_.findPairs(pairs);
-		
-		performedSearch_ = true;
-		return true;
-	}
-
-};
-
-}
-
-#endif

src/Interaction/contactSearch/methods/particleWallContactSearchs.cpp

@@ -0,0 +1,78 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+
+template <typename method>
+pFlow::particleWallContactSearchs<method>::particleWallContactSearchs
+(
+    const dictionary &dict, 
+    const box &domain, 
+    real minSize, 
+    real maxSize, 
+    const ViewType1D<realx3, memory_space> &position,
+    const pFlagTypeDevice &flags,  
+    const ViewType1D<real, memory_space> &diam
+)
+:
+    domainBox_(domain),
+    updateInterval_
+    (
+        dict.getValOrSet<uint32>("updateInterval", 1)
+    )
+{
+    
+}
+
+template <typename method>
+bool pFlow::particleWallContactSearchs<method>::broadSearch
+	(
+		uint32 iter,
+		real t,
+		real dt,
+		csPairContainerType& ppPairs,
+		csPairContainerType& pwPairs,
+		const deviceViewType1D<realx3>& pointPos,
+		const pFlagTypeDevice& flags,
+		const deviceViewType1D<real>& diameter,
+		bool  force
+	)
+	{
+		
+		performedSearch_ = false;
+		if( !performSearch(iter, force) ) return true;
+
+		if(!getMethod().impl_broadSearch(
+			ppPairs,
+			pwPairs,
+			pointPos,
+			flags,
+			diameter))
+		{
+			fatalErrorInFunction<<
+			"Error in performing particle-particle broadSearch in method"<<
+			getMethod().typeName()<<endl;
+			return false;
+		}
+
+		lastUpdated_ = iter;
+		
+		performedSearch_ = true;		
+		return true;
+	}

src/Interaction/contactSearch/methods/particleWallContactSearchs.hpp

@@ -0,0 +1,123 @@
+/*------------------------------- phasicFlow ---------------------------------
+      O        C enter of
+     O O       E ngineering and
+    O   O      M ultiscale modeling of
+   OOOOOOO     F luid flow       
+------------------------------------------------------------------------------
+  Copyright (C): www.cemf.ir
+  email: hamid.r.norouzi AT gmail.com
+------------------------------------------------------------------------------  
+Licence:
+  This file is part of phasicFlow code. It is a free software for simulating 
+  granular and multiphase flows. You can redistribute it and/or modify it under
+  the terms of GNU General Public License v3 or any other later versions. 
+ 
+  phasicFlow is distributed to help others in their research in the field of 
+  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+-----------------------------------------------------------------------------*/
+
+#ifndef __particleWallContactSearchs_hpp__
+#define __particleWallContactSearchs_hpp__
+
+#include "pointFlag.hpp"
+#include "contactSearchGlobals.hpp"
+#include "box.hpp"
+
+namespace pFlow
+{
+template<typename method>
+class particleWallContactSearchs
+{
+public:
+
+	using MethodType 		= method;
+
+	using IndexType 		= uint32;
+
+	using execution_space 	= DefaultExecutionSpace;
+
+	using memory_space 		= typename execution_space::memory_space;
+
+private:
+
+	// friend 
+	friend 	MethodType;
+
+	/// @brief  box enclosing the simulation domain (local to processor)
+	box 		domainBox_;
+
+	/*/// @brief box enclosing the area for contact search (region with points)
+	box 		searchBox_;*/
+
+	/// @brief update interval in terms of iteration numebr 
+	uint32 		updateInterval_= 1;
+
+	/// @brief  last iteration number which contact search has been performed
+	uint32 		lastUpdated_ 	= 0;
+
+	/// @brief performed search? 
+	bool 		performedSearch_ = false;
+
+protected:
+
+	inline
+	auto& getMethod()
+	{
+		return static_cast<MethodType&>(*this);
+	}
+
+	inline
+	const auto& getMethod()const
+	{
+		return static_cast<const MethodType&>(*this);
+	}
+
+public:
+
+	particleWallContactSearchs(
+		const 	dictionary& dict,
+		const 	box& domain,
+		real  	minSize,
+		real 	maxSize,
+		const 	ViewType1D<realx3, memory_space>& position,
+		const 	pFlagTypeDevice &flags, 
+		const 	ViewType1D<real, memory_space>& diam
+	);
+
+	bool broadSearch
+	(
+		uint32 iter,
+		real t,
+		real dt,
+		csPairContainerType& ppPairs,
+		csPairContainerType& pwPairs,
+		const deviceViewType1D<realx3>& pointPos,
+    	const pFlagTypeDevice& flags,
+    	const deviceViewType1D<real>& diameter,
+		bool  force = false
+	);
+		
+	bool performedSearch()const
+	{
+		return performedSearch_;
+	}
+
+	bool performSearch(uint32 iter, bool force = false)const
+	{
+		if((iter-lastUpdated_) % updateInterval_ == 0 || iter == 0 || force )
+		{
+			return true;
+		}
+		return false;		
+	}
+
+};
+
+
+} // pFlow
+
+#include "particleWallContactSearchs.cpp"
+
+#endif //__particleWallContactSearchs_hpp__

src/Interaction/contactSearch/wallMappings/cellMapping.hpp

@@ -1,150 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-#ifndef __cellMapping_hpp__
-#define __cellMapping_hpp__
-
-#include "cellsWallLevel0.hpp"
-#include "dictionary.hpp"
-
-
-namespace pFlow
-{
-
-template<
-	typename executionSpace
-	>
-class cellMapping
-{
-public:
-
-	using cellsWallLevel0Type = cellsWallLevel0<executionSpace>;
-
-	using IdType 			= typename cellsWallLevel0Type::IdType;
-
-	using IndexType 	= typename cellsWallLevel0Type::IndexType;
-
-	using Cells 			= typename cellsWallLevel0Type::Cells;
-
-	using CellType 		= typename Cells::CellType;
-
-	using execution_space = typename cellsWallLevel0Type::execution_space;
-
-	using memory_space 		= typename cellsWallLevel0Type::memory_space;
-
-	using iBoxType = iBox<IndexType>;	
-
-	
-protected:
-
-	// - update frequency 
-	int32 			updateFrequency_=1;
-
-	real 				cellExtent_;
-
-	int32 			currentIter_ = 0;
-
-	/// a broad search has been occured during last pass?
-	bool 				performedSearch_ = false;
-
-	cellsWallLevel0Type  cellsWallLevle_;
-		
-private:
-
-	bool performSearch()
-	{
-		if(currentIter_ % updateFrequency_ == 0)
-		{
-			currentIter_++;
-			return true;
-
-		}else
-		{
-			currentIter_++;
-			return false;
-		}
-	}
-
-public:
-
-	TypeInfoNV("cellMapping");
-
-	cellMapping(
-		const dictionary&  		dict,
-		int32 					numLevels,
-		const Vector<Cells>& 	ppCells,
-		int32 					numPoints,
-		int32 					numElements,
-		const ViewType1D<realx3,memory_space>& 		points, 
-		const ViewType1D<int32x3,memory_space>& 	vertices
-		)
-	:
-		updateFrequency_(
-			max(
-				dict.getValOrSet<int32>(
-					"updateFrequency",
-					1),
-				1)),
-		cellExtent_(
-			max(
-				dict.getValOrSet<real>(
-					"cellExtent", 
-					0.5),
-				0.5)),
-		cellsWallLevle_(
-			ppCells[0],
-			cellExtent_,
-			numPoints,
-			numElements,
-			points,
-			vertices
-			)
-	{}
-
-
-	bool enterBoadSearch()const
-	{
-		return currentIter_%updateFrequency_==0;
-	}
-
-	bool performedSearch()const
-	{
-		return performedSearch_;
-	}
-		
-	template<typename PairsContainer, typename particleMapType>
-	bool broadSearch(PairsContainer& pairs, particleMapType& particleMap, bool force=false)
-	{
-		if(force) currentIter_ = 0;
-		performedSearch_= false;
-		if(!performSearch())return true;
-		
-		cellsWallLevle_.broadSearch(pairs, particleMap);
-
-		performedSearch_ = true;
-		return true;
-	}
-
-}; // cellMapping
-
-} // pFlow
-
-
-#endif 

src/Interaction/contactSearch/wallMappings/cellsWallLevel0.hpp

@@ -1,285 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-#ifndef __cellsWallLevel0_hpp__
-#define __cellsWallLevel0_hpp__
-
-#include "types.hpp"
-#include "KokkosTypes.hpp"	
-#include "cells.hpp"
-#include "iBox.hpp"
-
-
-
-namespace pFlow
-{
-
-template<
-	typename executionSpace
-	>
-class cellsWallLevel0
-:
-	public cells<int32>
-{
-public:
-
-	using IdType		= int32;
-
-	using IndexType 	= int32;
-
-	using Cells 		= cells<IndexType>;
-
-	using CellType 		= typename Cells::CellType;
-
-	using execution_space = executionSpace;
-
-	using memory_space 	= typename execution_space::memory_space;
-
-	using iBoxType 		= iBox<IndexType>;	
-
-	class TagFindCellRange2{};
-
-protected:
-
-	// - box extent
-	real 			cellExtent_ = 0.5;
-
-	// - number of triangle elements 
-	int32			numElements_ = 0;
-
-	// - number of points
-	int32 			numPoints_ = 0;
-
-	// - ref to vectices (borrowed)
-	ViewType1D<int32x3, memory_space> 	vertices_;
-
-	// - ref to points in the trisurface (borrowed)
-	ViewType1D<realx3, memory_space> 	points_;
-
-	// cell range of element/triangle bounding box
-	ViewType1D<iBoxType, memory_space> 	elementBox_;
-	
-
-	using tpPWContactSearch = Kokkos::TeamPolicy<
-			execution_space,
-			Kokkos::Schedule<Kokkos::Dynamic>,
-			Kokkos::IndexType<int32>
-			>;
-
-	using rpFindCellRange2Type =
-		Kokkos::RangePolicy<TagFindCellRange2, execution_space, Kokkos::IndexType<int32>>;
-
-	
-	FUNCTION_H
-	void allocateArrays()
-	{
-		reallocNoInit( elementBox_, numElements_);
-	}
-
-public:
-
-	TypeInfoNV("cellsWallLevel0");
-
-	INLINE_FUNCTION_HD
-	cellsWallLevel0(){}
-
-	FUNCTION_H
-	cellsWallLevel0(
-		const Cells& 		ppCells,
-		real 						cellExtent,
-		int32 					numPoints,
-		int32 					numElements,
-		const ViewType1D<realx3,memory_space>& 		points, 
-		const ViewType1D<int32x3,memory_space>& 	vertices
-		)
-	:
-		Cells(ppCells),
-		cellExtent_( max(cellExtent, 0.5 ) ),
-		numElements_(numElements),
-		numPoints_(numPoints),
-		vertices_(vertices),
-		points_(points)
-	{
-
-		allocateArrays();
-	}
-
-	
-	// - host call
-	//   reset triangle elements if they have changed
-	bool resetElements( 
-		int32 			numElements,
-		int32       numPoints,
-		ViewType1D<realx3, memory_space>& points, 
-		ViewType1D<int32x3, memory_space>& vertices	)
-	{
-
-		numElements_ = numElements;
-		numPoints_ = numPoints;
-		points_ 	= points;
-		vertices_ 	= vertices;
-		
-		allocateArrays();
-
-		return true;
-	}
-
-	INLINE_FUNCTION_HD
-	iBoxType elementBox(int32 i)const
-	{
-		return elementBox_[i];
-	}
-
-	INLINE_FUNCTION_HD
-	int32 numElements()const
-	{
-		return numElements_;
-	}
-
-	
-		
-	template<typename PairsContainer, typename particleMapType>
-	bool broadSearch(PairsContainer& pairs, particleMapType& particleMap)
-	{
-	
-		// map walls onto the cells
-		this->build();
-		
-		this->particleWallFindPairs(pairs, particleMap);
-		
-		return true;
-	}
-
-	bool build()
-	{
-		Kokkos::parallel_for(
-			"cellsSimple::findcellrange2",
-			rpFindCellRange2Type(0,numElements_),
-			*this);
-		Kokkos::fence();
-		return true;
-	}
-
-	template<typename PairsContainer, typename particleMapType>
-	bool particleWallFindPairs(PairsContainer& pairs, particleMapType& particleMap)
-	{
-
-		int32 getFull = 1;
-
-		while (getFull)
-		{
-			
-			getFull = findPairsElementRangeCount(pairs, particleMap.getCellIterator(0));
-			
-			if(getFull)
-			{
-				// - resize the container
-				//   note that getFull now shows the number of failed insertions.
-				uint32 len = max(getFull, 50);
-				auto oldCap = pairs.capacity();
-				pairs.increaseCapacityBy(len);
-
-				INFORMATION<<"Contact pair container capacity increased from "<<
-						oldCap << " to " 
-						<< pairs.capacity() <<" in cellsWallLevel0."<<endINFO;
-				
-				Kokkos::fence();
-			}
-		}
-		
-		return true;
-	}
-
-
-	template<typename PairsContainer, typename CellIteratorType>
-	int32 findPairsElementRangeCount(PairsContainer& pairs, CellIteratorType cellIter) 
-	{
-		int32 getFull =0;
-		
-		const auto pwPairs = pairs;
-		const auto elementBox = elementBox_;
-		
-		Kokkos::parallel_reduce(
-			"cellsSimple::findPairsElementRangeModified2",
-			tpPWContactSearch(numElements_, Kokkos::AUTO),
-			LAMBDA_HD(
-				const typename tpPWContactSearch::member_type & teamMember,
-				int32& valueToUpdate){
-				
-				const int32 iTri = teamMember.league_rank();
-
-				const auto triBox = elementBox[iTri];
-				
-				int32 getFull2 = 0;
-
-				auto bExtent = boxExtent(triBox);
-				int32 numCellBox = bExtent.x()*bExtent.y()*bExtent.z();
-
-				Kokkos::parallel_reduce( 
-					Kokkos::TeamThreadRange( teamMember, numCellBox ),
-					[&] ( const int32 linIndex, int32 &innerUpdate )
-						{
-							
-							CellType cell;
-							indexToCell(linIndex, triBox, cell);
-
-							int32 n = cellIter.start(cell.x(),cell.y(),cell.z());
-						
-							while( n>-1)
-							{
-								// id is wall id the pair is (particle id, wall id)
-								if( pairs.insert(static_cast<IdType>(n), iTri) < 0 )
-									innerUpdate++;
-								n = cellIter.getNext(n);
-							}
-
-						},
-					getFull2
-				);
-
-				if ( teamMember.team_rank() == 0 ) valueToUpdate += getFull2;
-			},
-			getFull
-			);
-
-		return getFull;
-	}
-
-	INLINE_FUNCTION_HD
-	void operator()(TagFindCellRange2, int32 i) const
-	{
-		auto v = vertices_[i];
-		auto p1 = points_[v.x()];
-		auto p2 = points_[v.y()];
-		auto p3 = points_[v.z()];
-		
-		realx3 minP, maxP;
-
-		this->extendBox(p1, p2, p3, cellExtent_, minP, maxP);
-		elementBox_[i] = iBoxType(this->pointIndex(minP), this->pointIndex(maxP));
-
-	}
-
-}; // cellsWallLevel0
-
-} // pFlow
-
-
-#endif // __cellsWallLevel0_hpp__

src/Interaction/contactSearch/wallMappings/cellsWallLevels.hpp

@@ -1,152 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-#ifndef __cellsWallLevels_hpp__
-#define __cellsWallLevels_hpp__
-
-#include "cellsWallLevel0.hpp"
-
-namespace pFlow
-{
-
-template<
-	typename executionSpace
-	>
-class cellsWallLevels
-{
-public:
-
-	using cellsWallLevel0Type = cellsWallLevel0<executionSpace>;
-
-	using IdType 			= typename cellsWallLevel0Type::IdType;
-
-	using IndexType 	= typename cellsWallLevel0Type::IndexType;
-
-	using Cells 			= typename cellsWallLevel0Type::Cells;
-
-	using CellType 		= typename Cells::CellType;
-
-	using execution_space = typename cellsWallLevel0Type::execution_space;
-
-	using memory_space 		= typename cellsWallLevel0Type::memory_space;
-
-	using iBoxType = iBox<IndexType>;
-
-protected:
-
-	int32 			numLevles_=1;
-	
-
-	Vector<cellsWallLevel0Type> 			cellsWallLevels_;	
-
-public:
-
-	TypeInfoNV("cellsWallLevels");
-
-	FUNCTION_H
-	cellsWallLevels(
-		int32 					numLevels,
-		const Vector<Cells>&	cellsLevels,
-		real 					cellExtent,
-		int32 					numPoints,
-		int32 					numElements,
-		const ViewType1D<realx3,memory_space>& 		points, 
-		const ViewType1D<int32x3,memory_space>& 	vertices
-		)
-	:
-		numLevles_(numLevels),
-		cellsWallLevels_("cellsWallLevels",numLevels, numLevels, RESERVE())
-	{
-
-		
-
-		for(int32 lvl=0; lvl<numLevles_; lvl++)
-		{
-			cellsWallLevels_[lvl] = 
-				cellsWallLevel0Type(
-					cellsLevels[lvl],
-					cellExtent,
-					numPoints,
-					numElements,
-					points,
-					vertices);
-		}
-
-	}
-	
-		
-	template<typename PairsContainer, typename particleMapType>
-	bool broadSearch(PairsContainer& pairs, particleMapType& particleMap)
-	{
-	
-		// map walls onto the cells
-		for(int32 lvl=0; lvl<numLevles_; lvl++)
-		{
-			cellsWallLevels_[lvl].build();
-		}
-		
-		this->particleWallFindPairs(pairs, particleMap);
-		
-		return true;
-	}
-
-	template<typename PairsContainer, typename particleMapType>
-	bool particleWallFindPairs(PairsContainer& pairs, particleMapType& particleMap)
-	{
-
-		int32 getFull = 1;
-
-		while (getFull)
-		{
-			getFull = 0;
-			for(int32 lvl=0; lvl<numLevles_; lvl++)
-			{
-				getFull += 
-					cellsWallLevels_[lvl].findPairsElementRangeCount(
-						pairs, 
-						particleMap.getCellIterator(lvl));
-			}
-			
-			if(getFull)
-			{
-				// - resize the container
-				//   note that getFull now shows the number of failed insertions.
-				uint32 len = max(getFull, 5000);
-				auto oldCap = pairs.capacity();
-				pairs.increaseCapacityBy(len);
-
-				INFORMATION<<"Contact pair container capacity increased from "<<
-						oldCap << " to " 
-						<< pairs.capacity() <<" in cellsWallLevels."<<endINFO;
-				
-				Kokkos::fence();
-			}
-		}
-		
-		return true;
-	}
-
-
-}; // cellsWallLevels
-
-} // pFlow
-
-
-#endif // __cellsWallLevels_hpp__

src/Interaction/contactSearch/wallMappings/multiGridMapping.hpp

@@ -1,153 +0,0 @@
-/*------------------------------- phasicFlow ---------------------------------
-      O        C enter of
-     O O       E ngineering and
-    O   O      M ultiscale modeling of
-   OOOOOOO     F luid flow       
-------------------------------------------------------------------------------
-  Copyright (C): www.cemf.ir
-  email: hamid.r.norouzi AT gmail.com
-------------------------------------------------------------------------------  
-Licence:
-  This file is part of phasicFlow code. It is a free software for simulating 
-  granular and multiphase flows. You can redistribute it and/or modify it under
-  the terms of GNU General Public License v3 or any other later versions. 
- 
-  phasicFlow is distributed to help others in their research in the field of 
-  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
------------------------------------------------------------------------------*/
-
-#ifndef __multiGridMapping_hpp__
-#define __multiGridMapping_hpp__
-
-#include "cellsWallLevels.hpp"
-#include "dictionary.hpp"
-
-
-namespace pFlow
-{
-
-template<
-	typename executionSpace
-	>
-class multiGridMapping
-{
-public:
-
-	using CellsWallLevelType = cellsWallLevels<executionSpace>;
-
-	using IdType 			= typename CellsWallLevelType::IdType;
-
-	using IndexType 	= typename CellsWallLevelType::IndexType;
-
-	using Cells 			= typename CellsWallLevelType::Cells;
-
-	using CellType 		= typename Cells::CellType;
-
-	using execution_space = typename CellsWallLevelType::execution_space;
-
-	using memory_space 		= typename CellsWallLevelType::memory_space;
-
-	using iBoxType = iBox<IndexType>;	
-
-	
-protected:
-
-	// - update frequency 
-	int32 			updateFrequency_=1;
-
-	real 				cellExtent_;
-
-	int32 			currentIter_ = 0;
-
-	/// a broad search has been occured during last pass?
-	bool 				performedSearch_ = false;
-
-	CellsWallLevelType  cellsWallLevle_;
-		
-private:
-
-	bool performSearch()
-	{
-		if(currentIter_ % updateFrequency_ == 0)
-		{
-			currentIter_++;
-			return true;
-
-		}else
-		{
-			currentIter_++;
-			return false;
-		}
-	}
-
-public:
-
-	TypeInfoNV("multiGridMapping");
-
-	multiGridMapping(
-		const dictionary&  			dict,
-		int32 					numLevels,
-		const Vector<Cells>& 	ppCells,
-		int32 					numPoints,
-		int32 					numElements,
-		const ViewType1D<realx3,memory_space>& 		points, 
-		const ViewType1D<int32x3,memory_space>& 	vertices
-		)
-	:
-		updateFrequency_(
-			max(
-				dict.getVal<int32>("updateFrequency"),
-				1)),
-		cellExtent_(
-			max(
-				dict.getVal<real>("cellExtent"),
-				0.5)),
-		cellsWallLevle_(
-			numLevels,
-			ppCells,
-			cellExtent_,
-			numPoints,
-			numElements,
-			points,
-			vertices
-			)
-	{
-
-		REPORT(3)<<"Multi-grid wall mapping with "<< 
-			yellowText(numLevels)<<" levels has been created."<<endREPORT;
-	}
-
-
-	bool enterBoadSearch()const
-	{
-		return currentIter_%updateFrequency_==0;
-	}
-
-	bool performedSearch()const
-	{
-		return performedSearch_;
-	}
-		
-	template<typename PairsContainer, typename particleMapType>
-	bool broadSearch(PairsContainer& pairs, particleMapType& particleMap, bool force=false)
-	{
-		if(force) currentIter_ = 0;
-		performedSearch_= false;
-		if(!performSearch())return true;
-
-
-		cellsWallLevle_.broadSearch(pairs, particleMap);
-
-
-		performedSearch_ = true;
-		return true;
-	}
-
-}; // multiGridMapping
-
-} // pFlow
-
-
-#endif 

src/Interaction/interaction/interaction.cpp

@@ -19,7 +19,9 @@ Licence:
 -----------------------------------------------------------------------------*/
 
 #include "interaction.hpp"
-
+#include "particles.hpp"
+#include "vocabs.hpp"
+#include "geometry.hpp"
 
 pFlow::interaction::interaction
 (
@@ -28,26 +30,16 @@ pFlow::interaction::interaction
 	const geometry& geom
 )
 :
-	demInteraction(control, control.caseSetup().path()+interactionFile__),
+	property(interactionFile__, &control.caseSetup()),
-	interactionBase(prtcl, geom),
+	observer
-	fileDict_(control.caseSetup().emplaceObject<dictionary>(
+	(
-		objectFile(
+		&prtcl.dynPointStruct(),
-			interactionFile__,
+		msg_
-			"",
+	),
-			objectFile::READ_ALWAYS,
+	demComponent("interaction", control),
-			objectFile::WRITE_NEVER),
+	particles_(prtcl),
-		interactionFile__,
+	geometry_(geom)
-		true ))
 {
-	this->subscribe(prtcl.pStruct());
-
-	contactSearch_ = contactSearch::create(
-		fileDict_.subDict("contactSearch"),
-		this->control().domain(),
-		prtcl,
-		geom,
-		timers()
-		 );
 
 }
 
@@ -79,14 +71,14 @@ pFlow::uniquePtr<pFlow::interaction> pFlow::interaction::create
 			clType);
 
 
-	REPORT(1)<< "Selecting interaction model..."<<endREPORT;
+	REPORT(1)<< "Selecting interaction model..."<<END_REPORT;
 	if( systemControlvCtorSelector_.search(interactionModel) )
 	{
 		auto objPtr = 
 			systemControlvCtorSelector_[interactionModel]
 			(control, prtcl, geom);
 
-		REPORT(2)<<"Model "<<greenText(interactionModel)<<" is created."<<endREPORT;
+		REPORT(2)<<"Model "<<Green_Text(interactionModel)<<" is created."<<END_REPORT;
 		return objPtr;
 	}
 	else

src/Interaction/interaction/interaction.hpp

@@ -21,9 +21,10 @@ Licence:
 #ifndef __interaction_hpp__
 #define __interaction_hpp__
 
-#include "demInteraction.hpp"
+#include "demComponent.hpp"
-#include "eventObserver.hpp"
+#include "property.hpp"
-#include "interactionBase.hpp"
+#include "observer.hpp"
+#include "systemControl.hpp"
 #include "contactSearch.hpp"
 
 
@@ -31,27 +32,26 @@ Licence:
 namespace pFlow
 {
 
+class particles;
+class geometry;
+
 class interaction
 :
-	public demInteraction,
+	public property,
-	public eventObserver,
+	public observer,
-	public interactionBase
+	public demComponent
+	
 {
-public:
+private:
 
-	using IdType 				= typename interactionBase::IdType;
+	/// reference to particles object 
+	const particles& 	particles_;
 
-	using IndexType    			= typename interactionBase::IndexType;
+	/// reference to geometry object 
+	const geometry& 	geometry_;
 
-	using ExecutionSpace 	 	= typename interactionBase::ExecutionSpace;
+	static inline
-
+	const message msg_ = message::ITEM_REARRANGE;
-protected:
-
-	/// interaction file dictionary 
-	dictionary& 				fileDict_;
-
-	/// contact search object for pp and pw interactions 
-	uniquePtr<contactSearch> 	contactSearch_ = nullptr;
 
 public:
 
@@ -65,11 +65,10 @@ public:
 			const particles& prtcl,
 			const geometry& geom );
 		
+		~interaction() override = default;
 
-	
+		create_vCtor
-		virtual ~interaction() = default;
+		(
-
-		create_vCtor(
 			interaction,
 			systemControl,
 			(
@@ -80,20 +79,6 @@ public:
 			(control, prtcl, geom)
 		);
 	
-	auto& contactSearchPtr()
-	{
-		return contactSearch_;
-	}
-
-	auto& contactSearchRef()
-	{
-		return contactSearch_();
-	}
-
-	const auto& fileDict()const
-	{
-		return fileDict_;
-	}
 
 	static 
 	uniquePtr<interaction> create(

src/Interaction/sphereInteraction/sphereInteraction.cpp

@@ -18,22 +18,18 @@ Licence:
 
 -----------------------------------------------------------------------------*/
 
-template<
+template<typename cFM,typename gMM,template <class, class, class> class cLT>
-	typename contactForceModel,
+bool pFlow::sphereInteraction<cFM,gMM, cLT>::createSphereInteraction()
-	typename geometryMotionModel,
-	template <class, class, class> class contactListType >
-bool pFlow::sphereInteraction<contactForceModel,geometryMotionModel, contactListType>::
-	createSphereInteraction()
 {
 	
-	realVector_D rhoD(this->densities());
+	realVector_D rhoD("densities", this->densities());
 
-	auto modelDict = this->fileDict().subDict("model");
+	auto modelDict = this->subDict("model");
 
-	REPORT(1)<<"Createing contact force model . . ."<<endREPORT;
+	REPORT(1)<<"Createing contact force model . . ."<<END_REPORT;
 	forceModel_ = makeUnique<ContactForceModel>(
 		this->numMaterials(),
-		rhoD.deviceVector(),
+		rhoD.deviceView(),
 		modelDict );
 
 
@@ -47,17 +43,9 @@ bool pFlow::sphereInteraction<contactForceModel,geometryMotionModel, contactList
 }
 
 
-
+template<typename cFM,typename gMM,template <class, class, class> class cLT>
-template<
+bool pFlow::sphereInteraction<cFM,gMM, cLT>::sphereSphereInteraction()
-	typename contactForceModel,
-	typename geometryMotionModel,
-	template <class, class, class> class contactListType >
-bool pFlow::sphereInteraction<contactForceModel,geometryMotionModel, contactListType>::
-	sphereSphereInteraction()
 {
-	
-
-
 	auto lastItem = ppContactList_().loopCount();
 
 	// create the kernel functor 
@@ -66,17 +54,17 @@ bool pFlow::sphereInteraction<contactForceModel,geometryMotionModel, contactList
 			this->dt(),
 			this->forceModel_(),
 			ppContactList_(), // to be read
-			sphParticles_.diameter().deviceVectorAll(),
+			sphParticles_.diameter().deviceViewAll(),
-			sphParticles_.propertyId().deviceVectorAll(),
+			sphParticles_.propertyId().deviceViewAll(),
-			sphParticles_.pointPosition().deviceVectorAll(),
+			sphParticles_.pointPosition().deviceViewAll(),
-			sphParticles_.velocity().deviceVectorAll(),
+			sphParticles_.velocity().deviceViewAll(),
-			sphParticles_.rVelocity().deviceVectorAll(),
+			sphParticles_.rVelocity().deviceViewAll(),
-			sphParticles_.contactForce().deviceVectorAll(),
+			sphParticles_.contactForce().deviceViewAll(),
-			sphParticles_.contactTorque().deviceVectorAll()
+			sphParticles_.contactTorque().deviceViewAll()
 			);
 	
 	Kokkos::parallel_for(
-		"",
+		"ppInteraction",
 		rpPPInteraction(0,lastItem),
 		ppInteraction
 		);
@@ -87,34 +75,32 @@ bool pFlow::sphereInteraction<contactForceModel,geometryMotionModel, contactList
 }
 
 
-template<
+template<typename cFM,typename gMM,template <class, class, class> class cLT>
-	typename contactForceModel,
+bool pFlow::sphereInteraction<cFM,gMM, cLT>::sphereWallInteraction()
-	typename geometryMotionModel,
-	template <class, class, class> class contactListType >
-bool pFlow::sphereInteraction<contactForceModel,geometryMotionModel, contactListType>::
-	sphereWallInteraction()
 {
 	
-	int32 lastItem = pwContactList_().loopCount();
+	uint32 lastItem = pwContactList_().loopCount();
+	uint32 iter = this->currentIter();
 	real t = this->currentTime();
+	real dt = this->dt();
 
 	pFlow::sphereInteractionKernels::pwInteractionFunctor
 		pwInteraction(
-			this->dt(),
+			dt,
 			this->forceModel_(),
 			pwContactList_(),
 			geometryMotion_.getTriangleAccessor(), 
-			geometryMotion_.getModel(t) , 
+			geometryMotion_.getModel(iter, t, dt) , 
-			sphParticles_.diameter().deviceVectorAll() ,
+			sphParticles_.diameter().deviceViewAll() ,
-			sphParticles_.propertyId().deviceVectorAll(),
+			sphParticles_.propertyId().deviceViewAll(),
-			sphParticles_.pointPosition().deviceVectorAll(),
+			sphParticles_.pointPosition().deviceViewAll(),
-			sphParticles_.velocity().deviceVectorAll(),
+			sphParticles_.velocity().deviceViewAll(),
-			sphParticles_.rVelocity().deviceVectorAll() ,
+			sphParticles_.rVelocity().deviceViewAll() ,
-			sphParticles_.contactForce().deviceVectorAll(),
+			sphParticles_.contactForce().deviceViewAll(),
-			sphParticles_.contactTorque().deviceVectorAll() ,
+			sphParticles_.contactTorque().deviceViewAll() ,
-			geometryMotion_.triMotionIndex().deviceVectorAll(),
+			geometryMotion_.triMotionIndex().deviceViewAll(),
-			geometryMotion_.propertyId().deviceVectorAll(),
+			geometryMotion_.propertyId().deviceViewAll(),
-			geometryMotion_.contactForceWall().deviceVectorAll()
+			geometryMotion_.contactForceWall().deviceViewAll()
 		);
 
 	Kokkos::parallel_for(
@@ -128,3 +114,122 @@ bool pFlow::sphereInteraction<contactForceModel,geometryMotionModel, contactList
 
 	return true;
 }
+
+
+template<typename cFM,typename gMM,template <class, class, class> class cLT>
+pFlow::sphereInteraction<cFM,gMM, cLT>::sphereInteraction
+(
+	systemControl& control,
+	const particles& prtcl,
+	const geometry& geom
+)
+:
+	interaction(control, prtcl, geom),
+	geometryMotion_(dynamic_cast<const GeometryMotionModel&>(geom)),
+	sphParticles_(dynamic_cast<const sphereParticles&>(prtcl)),
+	ppInteractionTimer_("sphere-sphere interaction", &this->timers()),
+	pwInteractionTimer_("sphere-wall interaction", &this->timers()),
+	contactListTimer_("contact list management", &this->timers()),
+	contactListTimer0_("contact list clear", &this->timers())
+{
+	contactSearch_ = contactSearch::create(
+	subDict("contactSearch"),
+	prtcl.thisDomain().domainBox(),
+	prtcl,
+	geom,
+	timers());
+
+
+	if(!createSphereInteraction())
+	{
+		fatalExit;
+	}
+}
+
+template<typename cFM,typename gMM,template <class, class, class> class cLT>
+bool pFlow::sphereInteraction<cFM,gMM, cLT>::beforeIteration()
+{
+	return true;
+}
+
+template<typename cFM,typename gMM,template <class, class, class> class cLT>
+bool pFlow::sphereInteraction<cFM,gMM, cLT>::iterate()
+{
+	
+	auto iter = this->currentIter();
+	auto t = this->currentTime();
+	auto dt = this->dt();
+
+	//output<<"iter, t, dt "<< iter<<" "<< t << " "<<dt<<endl;
+	bool broadSearch = contactSearch_().enterBroadSearch(iter, t, dt);
+
+
+	if(broadSearch)
+	{
+		contactListTimer0_.start();
+		ppContactList_().beforeBroadSearch();
+		pwContactList_().beforeBroadSearch();
+		contactListTimer0_.end();
+	} 
+	
+	if( sphParticles_.numActive()<=0)return true;
+	
+	
+	if( !contactSearch_().broadSearch(
+			iter,
+			t,
+			dt,		
+			ppContactList_(),
+			pwContactList_()) )
+	{
+		fatalErrorInFunction<<
+		"unable to perform broadSearch.\n";
+		fatalExit;
+	}
+	
+
+	
+	if(broadSearch && contactSearch_().performedBroadSearch())
+	{
+		contactListTimer_.start();
+		ppContactList_().afterBroadSearch();
+		pwContactList_().afterBroadSearch();
+		contactListTimer_.end();
+	}
+	
+	ppInteractionTimer_.start();
+		sphereSphereInteraction();
+	ppInteractionTimer_.end();
+
+	
+	pwInteractionTimer_.start();
+		sphereWallInteraction();
+	pwInteractionTimer_.end();
+
+	
+	return true;
+}
+
+template<typename cFM,typename gMM,template <class, class, class> class cLT>
+bool pFlow::sphereInteraction<cFM,gMM, cLT>::afterIteration()
+{
+	return true;
+}
+
+template<typename cFM,typename gMM,template <class, class, class> class cLT>
+bool pFlow::sphereInteraction<cFM,gMM, cLT>::hearChanges
+(
+	real t,
+	real dt,
+	uint32 iter,
+	const message& msg, 
+	const anyList& varList
+)
+{
+	if(msg.equivalentTo(message::ITEM_REARRANGE))
+	{
+		notImplementedFunction;
+	}
+	return true;
+}
+

src/Interaction/sphereInteraction/sphereInteraction.hpp

@@ -23,7 +23,6 @@ Licence:
 
 #include "interaction.hpp"
 #include "sphereParticles.hpp"
-
 #include "sphereInteractionKernels.hpp"
 
 namespace pFlow
@@ -47,18 +46,15 @@ public:
 
 	using ModelStorage 			= typename ContactForceModel::contactForceStorage;
 	
-	using IdType 			= typename interaction::IdType;
+	using IdType 			= uint32;
 
-	using IndexType    		= typename interaction::IndexType;
+	using IndexType    		= uint32;
-
-	using ExecutionSpace 	= typename interaction::ExecutionSpace;
 
 	using ContactListType 	= 
-			contactListType<ModelStorage, ExecutionSpace, IdType>;
+			contactListType<ModelStorage, DefaultExecutionSpace, IdType>;
 
-	using PairsContainerType= typename contactSearch::PairContainerType;
 
-protected:
+private:
 	
 	/// const reference to geometry
 	const GeometryMotionModel& 			geometryMotion_;
@@ -66,6 +62,8 @@ protected:
 	/// const reference to particles 
 	const sphereParticles& 				sphParticles_;
 
+	/// contact search object for pp and pw interactions 
+	uniquePtr<contactSearch> 			contactSearch_ = nullptr;
 
 	/// contact force model 
 	uniquePtr<ContactForceModel>  		forceModel_ 	= nullptr;
@@ -82,42 +80,39 @@ protected:
 	/// timer for particle-wall interaction computations
 	Timer       pwInteractionTimer_;
 
+	Timer 		contactListTimer_;
+
+	Timer 		contactListTimer0_;
+
 	bool createSphereInteraction();
 
-	bool managePPContactLists();
+	bool sphereSphereInteraction();
 
-	bool managePWContactLists();
+	bool sphereWallInteraction();
+
+	//bool managePPContactLists();
+
+	//bool managePWContactLists();
 
 	/// range policy for p-p interaction execution 
 	using rpPPInteraction = 
-		Kokkos::RangePolicy<Kokkos::IndexType<int32>, Kokkos::Schedule<Kokkos::Dynamic>>;
+		Kokkos::RangePolicy<Kokkos::IndexType<uint32>, Kokkos::Schedule<Kokkos::Dynamic>>;
 
 	/// range policy for p-w interaction execution 
 	using rpPWInteraction = rpPPInteraction;
 
 public:
 
-	TypeInfoTemplate3("sphereInteraction", ContactForceModel, MotionModel, ContactListType);
+	TypeInfoTemplate13("sphereInteraction", ContactForceModel, MotionModel, ContactListType);
-
-	// constructor
 
+	/// Constructor from components
 	sphereInteraction(
 		systemControl& control,
 		const particles& prtcl,
-		const geometry& geom)
+		const geometry& geom);
-	:
-		interaction(control, prtcl, geom),
-		geometryMotion_(dynamic_cast<const GeometryMotionModel&>(geom)),
-		sphParticles_(dynamic_cast<const sphereParticles&>(prtcl)),
-		ppInteractionTimer_("sphere-sphere interaction", &this->timers()),
-		pwInteractionTimer_("sphere-wall interaction", &this->timers())
-	{
-		if(!createSphereInteraction())
-		{
-			fatalExit;
-		}
-	}
 	
+
+	/// Add virtual constructor 
 	add_vCtor
 	(
 		interaction,
@@ -125,97 +120,25 @@ public:
 		systemControl
 	);
 
+	/// This is called in time loop, before iterate. (overriden from demComponent)
+	bool beforeIteration() override;
 	
-	bool beforeIteration() override
+	/// This is called in time loop. Perform the main calculations 
-	{
+	/// when the component should evolve along time. (overriden from demComponent)
-		return true;
+	bool iterate() override; 
-	}
+	
+	/// This is called in time loop, after iterate. (overriden from demComponent)
+	bool afterIteration() override;
+
+	/// Check for changes in the point structures. (overriden from observer)
+	bool hearChanges(
+		real t,
+		real dt,
+		uint32 iter,
+		const message& msg, 
+		const anyList& varList)override;
 	
 	
-	bool iterate() override
-	{
-
-//Info<<"before contact search"<<endInfo;
-		////Info<<"interaction iterrate start"<<endInfo;
-		if(this->contactSearch_)
-		{
-
-			if( this->contactSearch_().ppEnterBroadSearch())
-			{
-				//Info<<" before ppEnterBroadSearch"<<endInfo;
-				ppContactList_().beforeBroadSearch();
-				//Info<<" after ppEnterBroadSearch"<<endInfo;
-			}
-
-			if(this->contactSearch_().pwEnterBroadSearch())
-			{
-				//Info<<" before pwEnterBroadSearch"<<endInfo;
-				pwContactList_().beforeBroadSearch();
-				//Info<<" after pwEnterBroadSearch"<<endInfo;
-			}
-
-			//Info<<" before broadSearch"<<endInfo;
-			if( !contactSearch_().broadSearch(
-					ppContactList_(),
-					pwContactList_()) )
-			{
-				fatalErrorInFunction<<
-				"unable to perform broadSearch.\n";
-				fatalExit;
-			}
-
-			//Info<<" before broadSearch"<<endInfo;
-
-
-			if(this->contactSearch_().ppPerformedBroadSearch())
-			{
-				//Info<<" before afterBroadSearch"<<endInfo;
-				ppContactList_().afterBroadSearch();
-				//Info<<" after afterBroadSearch"<<endInfo;
-			}
-
-			if(this->contactSearch_().pwPerformedBroadSearch())
-			{
-				//Info<<" before pwContactList_().afterBroadSearch()"<<endInfo;
-				pwContactList_().afterBroadSearch();
-				//Info<<" after pwContactList_().afterBroadSearch()"<<endInfo;
-			}
-		}
-//Info<<"after contact search"<<endInfo;
-
-		if( sphParticles_.numActive()<=0)return true;
-//Info<<"before sphereSphereInteraction "<<endInfo;
-		ppInteractionTimer_.start();
-			sphereSphereInteraction();
-		ppInteractionTimer_.end();
-//Info<<"after sphereSphereInteraction "<<endInfo;
-
-//Info<<"before sphereWallInteraction "<<endInfo;
-		pwInteractionTimer_.start();
-			sphereWallInteraction();
-		pwInteractionTimer_.end();
-//Info<<"after sphereWallInteraction "<<endInfo;
-		
-		return true;
-	}
-
-
-	bool afterIteration() override
-	{
-		return true;
-	}
-
-
-	bool update(const eventMessage& msg)override
-	{
-		// it requires not action regarding any changes in the 
-		// point structure 
-		return true;
-	}
-
-	bool sphereSphereInteraction();
-
-	bool sphereWallInteraction();
 };
 
 

src/Interaction/sphereInteraction/sphereInteractionKernels.hpp

@@ -42,7 +42,7 @@ struct ppInteractionFunctor
 	ContactListType   tobeFilled_;
 
 	deviceViewType1D<real>  		diam_;
-	deviceViewType1D<int8> 			propId_;
+	deviceViewType1D<uint32> 		propId_;
 	deviceViewType1D<realx3>  		pos_;
 	deviceViewType1D<realx3>  		lVel_;
 	deviceViewType1D<realx3>  		rVel_;
@@ -55,7 +55,7 @@ struct ppInteractionFunctor
 		ContactForceModel 		forceModel,
 		ContactListType 		tobeFilled,
 		deviceViewType1D<real>  		diam,
-		deviceViewType1D<int8> 			propId,
+		deviceViewType1D<uint32> 		propId,
 		deviceViewType1D<realx3>  		pos,
 		deviceViewType1D<realx3>  		lVel,
 		deviceViewType1D<realx3>  		rVel,
@@ -75,7 +75,7 @@ struct ppInteractionFunctor
 	{}
 
 	INLINE_FUNCTION_HD
-	void operator()(const int32 n)const
+	void operator()(const uint32 n)const
 	{
 		
 		if(!tobeFilled_.isValid(n))return;
@@ -181,14 +181,14 @@ struct pwInteractionFunctor
 	MotionModel  			motionModel_;
 
 	deviceViewType1D<real>  	diam_;
-	deviceViewType1D<int8> 		propId_;
+	deviceViewType1D<uint32>	propId_;
 	deviceViewType1D<realx3>  	pos_;
 	deviceViewType1D<realx3>  	lVel_;
 	deviceViewType1D<realx3>  	rVel_;
 	deviceViewType1D<realx3>	cForce_;
 	deviceViewType1D<realx3>	cTorque_;
-	deviceViewType1D<int8> 		wTriMotionIndex_;
+	deviceViewType1D<uint32> 	wTriMotionIndex_;
-	deviceViewType1D<int8>      wPropId_;
+	deviceViewType1D<uint32>    wPropId_;
 	deviceViewType1D<realx3>    wCForce_;
 	
 
@@ -199,14 +199,14 @@ struct pwInteractionFunctor
 		TraingleAccessor		triangles,
 		MotionModel 			motionModel ,
 		deviceViewType1D<real>  	diam ,
-		deviceViewType1D<int8>  	propId,
+		deviceViewType1D<uint32>  	propId,
 		deviceViewType1D<realx3>   	pos ,
 		deviceViewType1D<realx3>   	lVel,
 		deviceViewType1D<realx3>   	rVel,
 		deviceViewType1D<realx3> 	cForce,
 		deviceViewType1D<realx3> 	cTorque ,
-		deviceViewType1D<int8> 		wTriMotionIndex,
+		deviceViewType1D<uint32> 	wTriMotionIndex,
-		deviceViewType1D<int8>      wPropId,
+		deviceViewType1D<uint32>    wPropId,
 		deviceViewType1D<realx3>    wCForce)
 	:
 		dt_(dt),

src/Interaction/sphereInteraction/sphereInteractions.cpp

@@ -28,22 +28,22 @@ Licence:
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::limitedLinearNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::unsortedContactList>;
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::limitedLinearNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::sortedContactList>;
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::nonLimitedLinearNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::unsortedContactList>;
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::nonLimitedLinearNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::sortedContactList>;
 
 template class pFlow::sphereInteraction<
@@ -88,7 +88,7 @@ template class pFlow::sphereInteraction<
 	pFlow::sortedContactList>;
 
 
-template class pFlow::sphereInteraction<
+/*template class pFlow::sphereInteraction<
 	pFlow::cfModels::limitedLinearNormalRolling,
 	pFlow::multiRotationAxisMotionGeometry,
 	pFlow::unsortedContactList>;
@@ -106,28 +106,28 @@ template class pFlow::sphereInteraction<
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::nonLimitedLinearNormalRolling,
 	pFlow::multiRotationAxisMotionGeometry,
-	pFlow::sortedContactList>;
+	pFlow::sortedContactList>;*/
 
 /// non-linear models 
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::limitedNonLinearNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::unsortedContactList>;
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::limitedNonLinearNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::sortedContactList>;
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::nonLimitedNonLinearNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::unsortedContactList>;
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::nonLimitedNonLinearNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::sortedContactList>;
 
 template class pFlow::sphereInteraction<
@@ -171,7 +171,7 @@ template class pFlow::sphereInteraction<
 	pFlow::vibratingMotionGeometry,
 	pFlow::sortedContactList>;
 
-template class pFlow::sphereInteraction<
+/*template class pFlow::sphereInteraction<
 	pFlow::cfModels::limitedNonLinearNormalRolling,
 	pFlow::multiRotationAxisMotionGeometry,
 	pFlow::unsortedContactList>;
@@ -189,28 +189,28 @@ template class pFlow::sphereInteraction<
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::nonLimitedNonLinearNormalRolling,
 	pFlow::multiRotationAxisMotionGeometry,
-	pFlow::sortedContactList>;
+	pFlow::sortedContactList>;*/
 
 
 // - nonLinearMod models
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::limitedNonLinearModNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::unsortedContactList>;
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::limitedNonLinearModNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::sortedContactList>;
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::nonLimitedNonLinearModNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::unsortedContactList>;
 
 template class pFlow::sphereInteraction<
 	pFlow::cfModels::nonLimitedNonLinearModNormalRolling,
-	pFlow::fixedGeometry,
+	pFlow::stationaryGeometry,
 	pFlow::sortedContactList>;
 
 template class pFlow::sphereInteraction<
@@ -255,7 +255,7 @@ template class pFlow::sphereInteraction<
 	pFlow::sortedContactList>;
 
 
-template class pFlow::sphereInteraction<
+/*template class pFlow::sphereInteraction<
 	pFlow::cfModels::limitedNonLinearModNormalRolling,
 	pFlow::multiRotationAxisMotionGeometry,
 	pFlow::unsortedContactList>;
@@ -274,3 +274,4 @@ template class pFlow::sphereInteraction<
 	pFlow::cfModels::nonLimitedNonLinearModNormalRolling,
 	pFlow::multiRotationAxisMotionGeometry,
 	pFlow::sortedContactList>;
+*/