utestInterpolationMultiRhs.cpp 14.7 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
// ===================================================================================
// Copyright ScalFmm 2011 INRIA, Olivier Coulaud, Berenger Bramas, Matthias Messner
// olivier.coulaud@inria.fr, berenger.bramas@inria.fr
// This software is a computer program whose purpose is to compute the FMM.
//
// This software is governed by the CeCILL-C and LGPL licenses and
// abiding by the rules of distribution of free software.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public and CeCILL-C Licenses for more details.
// "http://www.cecill.info".
// "http://www.gnu.org/licenses".
// ===================================================================================

// ==== CMAKE =====
// @FUSE_BLAS
COULAUD Olivier's avatar
COULAUD Olivier committed
19
// @FUSE_FFT
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
// ==============
#include <array>

#include "ScalFmmConfig.h"
#include "Utils/FGlobal.hpp"

#include "Containers/FOctree.hpp"

#include "Files/FFmaGenericLoader.hpp"

#include "Core/FFmmAlgorithmThread.hpp"
#include "Core/FFmmAlgorithm.hpp"

#include "FUTester.hpp"

#include "Components/FSimpleLeaf.hpp"


#include "Kernels/Chebyshev/FChebCell.hpp"
#include "Kernels/Interpolation/FInterpMatrixKernel.hpp"
#include "Kernels/Chebyshev/FChebSymKernel.hpp"
41
#include "Kernels/Chebyshev/FChebKernel.hpp"
42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58

#include "Kernels/Uniform/FUnifCell.hpp"
#include "Kernels/Interpolation/FInterpMatrixKernel.hpp"
#include "Kernels/Uniform/FUnifKernel.hpp"


#include "Kernels/P2P/FP2PParticleContainerIndexed.hpp"
/*
  In this test we compare the spherical FMM results and the direct results.
 */


/** the test class
 *
 */
class TestInterpolationKernel : public FUTester<TestInterpolationKernel> {

BRAMAS Berenger's avatar
BRAMAS Berenger committed
59 60 61 62
    ///////////////////////////////////////////////////////////
    // The tests!
    ///////////////////////////////////////////////////////////

63
    template <class FReal, class CellClass, class ContainerClass, class KernelClass, class MatrixKernelClass,
BRAMAS Berenger's avatar
BRAMAS Berenger committed
64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
              class LeafClass, class OctreeClass, class FmmClass, const int NVals>
    void RunTest()	{
        // Warning in make test the exec dir it Build/UTests
        // Load particles
        //
        // 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);
        //
81
        FFmaGenericLoader<FReal> loader(filename);
BRAMAS Berenger's avatar
BRAMAS Berenger committed
82 83 84 85 86 87 88 89 90 91 92
        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;

93
        // std::cout << "\nInterpolation FMM (ORDER="<< ORDER << ") ... " << std::endl;
BRAMAS Berenger's avatar
BRAMAS Berenger committed
94 95 96 97 98

        // Create Matrix Kernel
        const MatrixKernelClass MatrixKernel; // FUKernelTester is only designed to work with 1/R, i.e. matrix kernel ctor takes no argument.
        //
        FSize nbParticles = loader.getNumberOfParticles() ;
99
        FmaRWParticle<FReal, 8,8>* const particles = new FmaRWParticle<FReal, 8,8>[nbParticles];
BRAMAS Berenger's avatar
BRAMAS Berenger committed
100 101

        loader.fillParticle(particles,nbParticles);
102

BRAMAS Berenger's avatar
BRAMAS Berenger committed
103 104
        // Create octree
        OctreeClass tree(NbLevels, SizeSubLevels, loader.getBoxWidth(), loader.getCenterOfBox());
105
        // Insert particle in the tree
106
        for(FSize idxPart = 0 ; idxPart < nbParticles ; ++idxPart){
107 108 109 110 111 112 113 114
            // Convert FReal[NVALS] to std::array<FReal,NVALS>
            std::array<FReal, (1+4*1)*NVals> physicalState;
            for(int idxVals = 0 ; idxVals < NVals ; ++idxVals){
                physicalState[0*NVals+idxVals]= particles[idxPart].getPhysicalValue();
                physicalState[1*NVals+idxVals]=0.0;
                physicalState[2*NVals+idxVals]=0.0;
                physicalState[3*NVals+idxVals]=0.0;
                physicalState[4*NVals+idxVals]=0.0;
BRAMAS Berenger's avatar
BRAMAS Berenger committed
115
            }
116 117 118 119
            // put in tree
            tree.insert(particles[idxPart].getPosition(), idxPart, physicalState);
        }

BRAMAS Berenger's avatar
BRAMAS Berenger committed
120 121 122 123 124 125 126 127

        // Run FMM
        Print("Fmm...");
        KernelClass kernels(NbLevels, loader.getBoxWidth(), loader.getCenterOfBox(),&MatrixKernel);
        FmmClass algo(&tree,&kernels);
        algo.execute();
        //
        FReal energy= 0.0 , energyD = 0.0 ;
128
        for(FSize idx = 0 ; idx < loader.getNumberOfParticles()  ; ++idx){
BRAMAS Berenger's avatar
BRAMAS Berenger committed
129 130 131 132 133
            energyD +=  particles[idx].getPotential()*particles[idx].getPhysicalValue() ;
        }
        //
        // Compare
        Print("Compute Diff...");
134 135
        FMath::FAccurater<FReal> potentialDiff[NVals];
        FMath::FAccurater<FReal> fx, fy, fz;
BRAMAS Berenger's avatar
BRAMAS Berenger committed
136 137 138 139 140 141 142 143 144
        {
            tree.forEachLeaf([&](LeafClass* leaf){
                //
                for(int idxVals = 0 ; idxVals < NVals ; ++idxVals){
                    const FReal* const physicalValues = leaf->getTargets()->getPhysicalValues(idxVals);
                    const FReal*const potentials = leaf->getTargets()->getPotentials(idxVals);
                    const FReal*const forcesX = leaf->getTargets()->getForcesX(idxVals);
                    const FReal*const forcesY = leaf->getTargets()->getForcesY(idxVals);
                    const FReal*const forcesZ = leaf->getTargets()->getForcesZ(idxVals);
145 146
                    const FSize nbParticlesInLeaf = leaf->getTargets()->getNbParticles();
                    const FVector<FSize>& indexes = leaf->getTargets()->getIndexes();
BRAMAS Berenger's avatar
BRAMAS Berenger committed
147

148
                    for(FSize idxPart = 0 ; idxPart < nbParticlesInLeaf ; ++idxPart){
BRAMAS Berenger's avatar
BRAMAS Berenger committed
149

150
                        const FSize indexPartOrig = indexes[idxPart];
BRAMAS Berenger's avatar
BRAMAS Berenger committed
151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
                        //					std::cout << " index "<< indexPartOrig << "   "  << particles[indexPartOrig].getPotential() << "   " << potentials[idxPart] << std::endl;
                        potentialDiff[idxVals].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]);
                        //

                        energy   += potentials[idxPart]*physicalValues[idxPart];
                    }

                }
            });

        }
        delete[] particles;
        energy /=NVals;
        // Print for information
        double errorPotRL2=0.0, errorPotRMS=0.0;
        Print("Potential diff is = ");
        for(int idxVals = 0 ; idxVals < NVals ; ++idxVals){
            printf("   Charge: %d\n",		idxVals);
            printf("         Pot L2Norm     %e\n",potentialDiff[idxVals].getL2Norm());
            printf("         Pot RL2Norm   %e\n",potentialDiff[idxVals].getRelativeL2Norm());
            printf("         Pot RMSError   %e\n",potentialDiff[idxVals].getRMSError());
            errorPotRL2 = std::max(errorPotRL2, potentialDiff[idxVals].getRelativeL2Norm());
            errorPotRMS = std::max(errorPotRMS, potentialDiff[idxVals].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(errorPotRL2 < MaximumDiffPotential);    //1
        Print("Test2 - Error RMS L2 norm Potential ");
        uassert(errorPotRMS< 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


        // Compute multipole local rhs diff
224 225
        FMath::FAccurater<FReal> localDiff;
        FMath::FAccurater<FReal> multiPoleDiff;
BRAMAS Berenger's avatar
BRAMAS Berenger committed
226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264
        tree.forEachCell([&](CellClass* cell){
            for( int idxRhs = 1 ; idxRhs < NVals ; ++idxRhs){
                localDiff.add(cell->getLocal(0), cell->getLocal(idxRhs), cell->getVectorSize());
                multiPoleDiff.add(cell->getMultipole(0), cell->getMultipole(idxRhs), cell->getVectorSize());
            }
        });
        Print("Local diff is = ");
        Print(localDiff.getL2Norm());
        Print(localDiff.getInfNorm());
        Print("Multipole diff is = ");
        Print(multiPoleDiff.getL2Norm());
        Print(multiPoleDiff.getInfNorm());

        uassert(localDiff.getL2Norm()  < 1e-10);
        uassert(localDiff.getInfNorm() < 1e-10);
        uassert(multiPoleDiff.getL2Norm()  < 1e-10);
        uassert(multiPoleDiff.getInfNorm() < 1e-10);
    }

    /** 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";
        }
    }


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


    /** TestUnifKernel */
    void TestUnifKernel(){
265
        typedef double FReal;
COULAUD Olivier's avatar
COULAUD Olivier committed
266
        const int NVals = 3;
BRAMAS Berenger's avatar
BRAMAS Berenger committed
267 268
        const unsigned int ORDER = 6 ;
        // run test
269
        typedef FInterpMatrixKernelR<FReal> MatrixKernelClass;
BRAMAS Berenger's avatar
BRAMAS Berenger committed
270 271


272
        typedef FP2PParticleContainerIndexed<FReal,1,1,NVals> ContainerClass;
273
        typedef FSimpleLeaf<FReal, ContainerClass >  LeafClass;
274
        typedef FUnifCell<FReal,ORDER,1,1,NVals> CellClass;
275 276
        typedef FOctree<FReal, CellClass,ContainerClass,LeafClass> OctreeClass;
        typedef FUnifKernel<FReal,CellClass,ContainerClass,MatrixKernelClass,ORDER,NVals> KernelClass;
BRAMAS Berenger's avatar
BRAMAS Berenger committed
277 278
        typedef FFmmAlgorithm<OctreeClass,CellClass,ContainerClass,KernelClass,LeafClass> FmmClass;

279
        RunTest<FReal,CellClass,ContainerClass,KernelClass,MatrixKernelClass,LeafClass,OctreeClass,FmmClass, NVals>();
BRAMAS Berenger's avatar
BRAMAS Berenger committed
280 281 282 283
    }

    /** TestChebSymKernel */
    void TestChebSymKernel(){
284
        typedef double FReal;
COULAUD Olivier's avatar
COULAUD Olivier committed
285
        const int NVals = 3;
BRAMAS Berenger's avatar
BRAMAS Berenger committed
286
        const unsigned int ORDER = 6;
287
        typedef FP2PParticleContainerIndexed<FReal,1,1,NVals> ContainerClass;
288 289
        typedef FSimpleLeaf<FReal, ContainerClass> LeafClass;
        typedef FInterpMatrixKernelR<FReal> MatrixKernelClass;
290
        typedef FChebCell<FReal,ORDER, 1, 1, NVals> CellClass;
291 292
        typedef FOctree<FReal, CellClass,ContainerClass,LeafClass> OctreeClass;
        typedef FChebSymKernel<FReal,CellClass,ContainerClass,MatrixKernelClass,ORDER, NVals> KernelClass;
BRAMAS Berenger's avatar
BRAMAS Berenger committed
293 294
        typedef FFmmAlgorithm<OctreeClass,CellClass,ContainerClass,KernelClass,LeafClass> FmmClass;
        // run test
295
        RunTest<FReal,CellClass,ContainerClass,KernelClass,MatrixKernelClass,LeafClass,OctreeClass,FmmClass, NVals>();
BRAMAS Berenger's avatar
BRAMAS Berenger committed
296 297
    }

298 299
    /** TestChebKernel */
    void TestChebKernel(){
300
        typedef double FReal;
301 302
        const int NVals = 3;
        const unsigned int ORDER = 6;
303
        typedef FP2PParticleContainerIndexed<FReal,1,1,NVals> ContainerClass;
304 305
        typedef FSimpleLeaf<FReal, ContainerClass> LeafClass;
        typedef FInterpMatrixKernelR<FReal> MatrixKernelClass;
306
        typedef FChebCell<FReal,ORDER, 1, 1, NVals> CellClass;
307 308
        typedef FOctree<FReal, CellClass,ContainerClass,LeafClass> OctreeClass;
        typedef FChebKernel<FReal,CellClass,ContainerClass,MatrixKernelClass,ORDER, NVals> KernelClass;
309 310
        typedef FFmmAlgorithm<OctreeClass,CellClass,ContainerClass,KernelClass,LeafClass> FmmClass;
        // run test
311
        RunTest<FReal,CellClass,ContainerClass,KernelClass,MatrixKernelClass,LeafClass,OctreeClass,FmmClass, NVals>();
312
    }
BRAMAS Berenger's avatar
BRAMAS Berenger committed
313 314 315 316 317 318 319 320 321 322

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

    /** set test */
    void SetTests(){

        AddTest(&TestInterpolationKernel::TestUnifKernel,"Test Lagrange/Uniform grid FMM");
        AddTest(&TestInterpolationKernel::TestChebSymKernel,"Test Symmetric Chebyshev Kernel with 16 small SVDs and symmetries");
323 324
        AddTest(&TestInterpolationKernel::TestChebKernel,"Test Chebyshev Kernel with 1 large SVD");
        
BRAMAS Berenger's avatar
BRAMAS Berenger committed
325
    }
326 327 328 329 330 331 332 333 334 335
};


// You must do this
TestClass(TestInterpolationKernel)