utestRotationDirectSeveralTime.cpp 8.89 KB
Newer Older
BRAMAS Berenger's avatar
BRAMAS Berenger committed
1
#include "Utils/FGlobal.hpp"
2

BRAMAS Berenger's avatar
BRAMAS Berenger committed
3 4
#include "Containers/FOctree.hpp"
#include "Containers/FVector.hpp"
5

BRAMAS Berenger's avatar
BRAMAS Berenger committed
6 7
#include "Kernels/Rotation/FRotationCell.hpp"
#include "Kernels/P2P/FP2PParticleContainerIndexed.hpp"
8

BRAMAS Berenger's avatar
BRAMAS Berenger committed
9 10
#include "Components/FSimpleLeaf.hpp"
#include "Kernels/Rotation/FRotationKernel.hpp"
11

BRAMAS Berenger's avatar
BRAMAS Berenger committed
12
#include "Files/FFmaGenericLoader.hpp"
13

BRAMAS Berenger's avatar
BRAMAS Berenger committed
14 15
#include "Core/FFmmAlgorithmThread.hpp"
#include "Core/FFmmAlgorithm.hpp"
16 17 18 19 20

#include "FUTester.hpp"


/** the test class run a simulation several times
21 22
 * so it has to reset the cell information to ensure that results are correct.
 */
23
class TestRotationDirectSeveralTime : public FUTester<TestRotationDirectSeveralTime> {
24
	/** The test method to factorize all the test based on different kernels */
25
    template <class FReal, class CellClass, class ContainerClass, class KernelClass, class LeafClass,
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
	class OctreeClass, class FmmClass>
	void RunTest(){
		//
		// Load particles
		//
		if(sizeof(FReal) == sizeof(float) ) {
			std::cerr << "No input data available for Float "<< std::endl;
			exit(EXIT_FAILURE);
		}
		const std::string parFile( (sizeof(FReal) == sizeof(float))?
				"Test/DirectFloat.bfma":
				"UTest/DirectDouble.bfma");
		//
		std::string filename(SCALFMMDataPath+parFile);
		//
41
		FFmaGenericLoader<FReal> loader(filename);
42 43 44 45 46 47 48 49 50 51 52 53
		if(!loader.isOpen()){
			Print("Cannot open particles file.");
			uassert(false);
			return;
		}
		Print("Number of particles:");
		Print(loader.getNumberOfParticles());

		const int NbLevels      = 4;
		const int SizeSubLevels = 2;
		//
		FSize nbParticles = loader.getNumberOfParticles() ;
54
		FmaRWParticle<FReal, 8,8>* const particles = new FmaRWParticle<FReal, 8,8>[nbParticles];
55 56 57 58 59 60 61 62

		loader.fillParticle(particles,nbParticles);
		//
		// Create octree
		//
		OctreeClass tree(NbLevels, SizeSubLevels, loader.getBoxWidth(), loader.getCenterOfBox());
		//   Insert particle in the tree
		//
63
		for(FSize idxPart = 0 ; idxPart < loader.getNumberOfParticles() ; ++idxPart){
64
		    tree.insert(particles[idxPart].getPosition() , idxPart, particles[idxPart].getPhysicalValue() );
65 66 67 68 69 70 71
		}
		//
		FReal energy= 0.0 , energyD = 0.0 ;
		/////////////////////////////////////////////////////////////////////////////////////////////////
		// Compute direct energy
		/////////////////////////////////////////////////////////////////////////////////////////////////

72
		for(FSize idx = 0 ; idx < loader.getNumberOfParticles()  ; ++idx){
73
		    energyD +=  particles[idx].getPotential()*particles[idx].getPhysicalValue() ;
74 75 76 77 78 79 80
		}
		// Run FMM
		Print("Fmm...");
		KernelClass kernels(NbLevels,loader.getBoxWidth(), loader.getCenterOfBox());
		FmmClass algo(&tree,&kernels);

		// execute FMM algorithm twice
81 82
		int nbloops = 2;
		for(int idxTime = 0 ; idxTime < nbloops ; ++idxTime){
83 84 85 86
			Print(idxTime);
			algo.execute();
			//
			// Reset cells information
87 88 89 90 91 92 93 94 95
			if(idxTime != nbloops-1 ){
				Print("Reset all cells in the Octree...");
				tree.forEachCell([&](CellClass* cell){
					cell->resetToInitialState();
				});
				Print("Reset all leafs in the Octree...");

				//  If we want to reset the leaf
				tree.forEachLeaf([&](LeafClass* leaf){
COULAUD Olivier's avatar
COULAUD Olivier committed
96
					leaf->getTargets()->resetForcesAndPotential();
97 98
				});
			}
99 100 101 102 103
		}
		/////////////////////////////////////////////////////////////////////////////////////////////////
		// Compare
		/////////////////////////////////////////////////////////////////////////////////////////////////
		Print("Compute Diff...");
104 105
		FMath::FAccurater<FReal> potentialDiff;
		FMath::FAccurater<FReal> fx, fy, fz;
106 107 108 109 110 111 112 113
		{ // Check that each particle has been summed with all other

			tree.forEachLeaf([&](LeafClass* leaf){
				const FReal*const potentials        = leaf->getTargets()->getPotentials();
				const FReal*const physicalValues = leaf->getTargets()->getPhysicalValues();
				const FReal*const forcesX            = leaf->getTargets()->getForcesX();
				const FReal*const forcesY            = leaf->getTargets()->getForcesY();
				const FReal*const forcesZ            = leaf->getTargets()->getForcesZ();
114 115
				const FSize nbParticlesInLeaf           = leaf->getTargets()->getNbParticles();
				const FVector<FSize>& indexes = leaf->getTargets()->getIndexes();
116

117 118
				for(FSize idxPart = 0 ; idxPart < nbParticlesInLeaf ; ++idxPart){
					const FSize indexPartOrig = indexes[idxPart];
119 120 121 122
					potentialDiff.add(particles[indexPartOrig].getPotential(),potentials[idxPart]);
					fx.add(particles[indexPartOrig].getForces()[0],forcesX[idxPart]);
					fy.add(particles[indexPartOrig].getForces()[1],forcesY[idxPart]);
					fz.add(particles[indexPartOrig].getForces()[2],forcesZ[idxPart]);
123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196
					energy   += potentials[idxPart]*physicalValues[idxPart];
				}
			});
		}
		delete[] particles;

		// Print for information

		Print("Potential diff is = ");
		printf("         Pot L2Norm     %e\n",potentialDiff.getL2Norm());
		printf("         Pot RL2Norm   %e\n",potentialDiff.getRelativeL2Norm());
		printf("         Pot RMSError   %e\n",potentialDiff.getRMSError());
		Print("Fx diff is = ");
		printf("         Fx L2Norm     %e\n",fx.getL2Norm());
		printf("         Fx RL2Norm   %e\n",fx.getRelativeL2Norm());
		printf("         Fx RMSError   %e\n",fx.getRMSError());
		Print("Fy diff is = ");
		printf("        Fy L2Norm     %e\n",fy.getL2Norm());
		printf("        Fy RL2Norm   %e\n",fy.getRelativeL2Norm());
		printf("        Fy RMSError   %e\n",fy.getRMSError());
		Print("Fz diff is = ");
		printf("        Fz L2Norm     %e\n",fz.getL2Norm());
		printf("        Fz RL2Norm   %e\n",fz.getRelativeL2Norm());
		printf("        Fz RMSError   %e\n",fz.getRMSError());
		FReal L2error = (fx.getRelativeL2Norm()*fx.getRelativeL2Norm() + fy.getRelativeL2Norm()*fy.getRelativeL2Norm()  + fz.getRelativeL2Norm() *fz.getRelativeL2Norm()  );
		printf(" Total L2 Force Error= %e\n",FMath::Sqrt(L2error)) ;
		printf("  Energy Error  =   %.12e\n",FMath::Abs(energy-energyD));
		printf("  Energy FMM    =   %.12e\n",FMath::Abs(energy));
		printf("  Energy DIRECT =   %.12e\n",FMath::Abs(energyD));

		// Assert
		const FReal MaximumDiffPotential = FReal(9e-3);
		const FReal MaximumDiffForces     = FReal(9e-2);

		Print("Test1 - Error Relative L2 norm Potential ");
		uassert(potentialDiff.getRelativeL2Norm() < MaximumDiffPotential);    //1
		Print("Test2 - Error RMS L2 norm Potential ");
		uassert(potentialDiff.getRMSError() < MaximumDiffPotential);  //2
		Print("Test3 - Error Relative L2 norm FX ");
		uassert(fx.getRelativeL2Norm()  < MaximumDiffForces);                       //3
		Print("Test4 - Error RMS L2 norm FX ");
		uassert(fx.getRMSError() < MaximumDiffForces);                      //4
		Print("Test5 - Error Relative L2 norm FY ");
		uassert(fy.getRelativeL2Norm()  < MaximumDiffForces);                       //5
		Print("Test6 - Error RMS L2 norm FY ");
		uassert(fy.getRMSError() < MaximumDiffForces);                      //6
		Print("Test7 - Error Relative L2 norm FZ ");
		uassert(fz.getRelativeL2Norm()  < MaximumDiffForces);                      //8
		Print("Test8 - Error RMS L2 norm FZ ");
		uassert(fz.getRMSError() < MaximumDiffForces);                                           //8
		Print("Test9 - Error Relative L2 norm F ");
		uassert(L2error              < MaximumDiffForces);                                            //9   Total Force
		Print("Test10 - Relative error Energy ");
		uassert(FMath::Abs(energy-energyD) /energyD< MaximumDiffPotential);                     //10  Total Energy

	}

	/** If memstas is running print the memory used */
	void PostTest() {
		if( FMemStats::controler.isUsed() ){
			std::cout << "Memory used at the end " << FMemStats::controler.getCurrentAllocated() << " Bytes (" << FMemStats::controler.getCurrentAllocatedMB() << "MB)\n";
			std::cout << "Max memory used " << FMemStats::controler.getMaxAllocated() << " Bytes (" << FMemStats::controler.getMaxAllocatedMB() << "MB)\n";
			std::cout << "Total memory used " << FMemStats::controler.getTotalAllocated() << " Bytes (" << FMemStats::controler.getTotalAllocatedMB() << "MB)\n";
		}
	}

	///////////////////////////////////////////////////////////
	// The tests!
	///////////////////////////////////////////////////////////

	static const int P = 9;

	/** Rotation */
	void TestRotation(){
197
        typedef double FReal;
198
		typedef FRotationCell<FReal,P>              CellClass;
199
		typedef FP2PParticleContainerIndexed<FReal>  ContainerClass;
200

201
        typedef FRotationKernel<FReal, CellClass, ContainerClass, P >          KernelClass;
202

203 204
		typedef FSimpleLeaf<FReal, ContainerClass >                     LeafClass;
		typedef FOctree<FReal, CellClass, ContainerClass , LeafClass >  OctreeClass;
205 206 207

		typedef FFmmAlgorithm<OctreeClass, CellClass, ContainerClass, KernelClass, LeafClass > FmmClass;

208
        RunTest<FReal, CellClass, ContainerClass, KernelClass, LeafClass, OctreeClass, FmmClass>();
209 210 211 212 213 214 215 216 217 218
	}

	///////////////////////////////////////////////////////////
	// Set the tests!
	///////////////////////////////////////////////////////////

	/** set test */
	void SetTests(){
		AddTest(&TestRotationDirectSeveralTime::TestRotation,"Test Rotation Kernel");
	}
219 220 221 222 223
};


// You must do this
TestClass(TestRotationDirectSeveralTime)