New Fma reader and writer

CMakeLists.txt

@@ -62,8 +62,8 @@ SET(SCALFMM_LIBRARIES "")
 SET(ScaLFMM_CXX_FLAGS "")
 #
 # Compile option
-#
-SET(ScaLFMM_CXX_FLAGS "-std=c++11 -Wall -Wshadow -Wpointer-arith -Wcast-qual -Wconversion -fpic")
+# -Wall Wnosign-conversion 
+SET(ScaLFMM_CXX_FLAGS "-std=c++11  -Wshadow -Wpointer-arith -Wcast-qual -Wconversion -fpic")
 #
 # Test if openmp is here
 #

Data/prolate100.fma

+8  4
 100  20  0  0  0
 0.998298       0.0088693       0.576438       0.396465
 0.107422       -0.2487       -9.62605       0.840485

Data/prolate50.fma

+8 4
 20  10.002   0.0   0.0  0.0 
 -0.381596       -0.909478       -1.65028       7.82637e-06
 -0.328097       -0.475796       -8.1607       0.131538

Data/test20k.tsm.fma

+8 4
 20000
 0.5	0.5	0.5	0.5
 0.840188	0.394383	0.783099	0.01	1

Examples/ChebyshevInterpolationAlgorithm.cpp

@@ -25,18 +25,18 @@
 
 #include "Files/FFmaGenericLoader.hpp"
 
-#include "../../Src/Kernels/Chebyshev/FChebCell.hpp"
-#include "../../Src/Kernels/Interpolation/FInterpMatrixKernel.hpp"
-#include "../../Src/Kernels/Chebyshev/FChebSymKernel.hpp"
+#include "Kernels/Chebyshev/FChebCell.hpp"
+#include "Kernels/Interpolation/FInterpMatrixKernel.hpp"
+#include "Kernels/Chebyshev/FChebSymKernel.hpp"
 
-#include "../../Src/Components/FSimpleLeaf.hpp"
-#include "../../Src/Kernels/P2P/FP2PParticleContainerIndexed.hpp"
+#include "Components/FSimpleLeaf.hpp"
+#include "Kernels/P2P/FP2PParticleContainerIndexed.hpp"
 
-#include "../../Src/Utils/FParameters.hpp"
+#include "Utils/FParameters.hpp"
 
-#include "../../Src/Containers/FOctree.hpp"
+#include "Containers/FOctree.hpp"
 
-#include "../../Src/Core/FFmmAlgorithmThread.hpp"
+#include "Core/FFmmAlgorithmThread.hpp"
 
 /**
  * This program runs the FMM Algorithm with the Chebyshev kernel and compares the results with a direct computation.
@@ -104,6 +104,7 @@ int main(int argc, char* argv[])
 	////////////////////////////////////////////////////////////////////
 
 	bool binaryMode = false;
+
 	if(FParameters::existParameter(argc, argv, "-bin")){
 		binaryMode = true;
 	}

Examples/generateDistributions.cpp

@@ -10,10 +10,13 @@
 #include <fstream>
 #include <sstream>
 #include <string>
+//
 #include "Utils/FGlobal.hpp"
 #include "Utils/FMath.hpp"
 #include "Utils/FPoint.hpp"
 #include "Utils/FGenerateDistribution.hpp"
+#include "Files/FFmaGenericLoader.hpp"
+
 //
 /// \file  generateDistributions.cpp
 //!
@@ -32,7 +35,7 @@
 //!  <b> General arguments:</b>
 //!     \param   -help (-h)      to see the parameters available in this driver
 //!     \param  -N     The number of points in the distribution (default 20000)
-//!     \param   -filename name: generic name for files (without extension) and save data
+//!     \param   -filename name: generic name for files (with extension) and save data
 //!                  with following format in name.fma or name.bfma in -bin is set"
 //!      \param  -visufmt format for the visu file (vtk, vtp, cvs or cosmo). vtp is the default
 //!      \param -extraLength   value    extra length to add to the boxWidth (default 0.0)
@@ -65,7 +68,7 @@
 //!
 //!   generateDistributions  -cuboid 2:2:4 -filename cuboid  -visufmt vtp -charge  -zeromean
 //!
-
+//
 
 //
 //
@@ -98,7 +101,6 @@ void genDistusage() {
 			<<     "     Output " << std::endl
 			<<     "             -filename name: generic name for files (without extension) and save data" <<std::endl
 			<<     "                     with following format in name.fma or name.bfma in -bin is set" <<std::endl
-					<<     "      -bin save output in binary file name.txt" <<std::endl
 			<<     "             -visufmt  vtk, vtp, cosmo or cvs format " <<std::endl;
 }
 
@@ -120,6 +122,8 @@ int main(int argc, char ** argv){
 	FReal * particles ;
 	particles = new FReal[4*NbPoints] ;
 	memset(particles,0,4*NbPoints*sizeof(FReal));
+	FmaBasicParticle *ppart = (FmaBasicParticle*)(&particles[0]);
+
 	//
 	// Generate physical values
 	//
@@ -153,7 +157,7 @@ int main(int argc, char ** argv){
 	if(FParameters::existParameter(argc, argv, "-unitCube")){
 		unifRandonPointsOnUnitCube(NbPoints, particles) ;
 		Centre.setPosition(0.5,0.5,0.5);
-		BoxWith = 0.5 ;
+		BoxWith = 1.0 ;
 	}
 	else if(FParameters::existParameter(argc, argv, "-cuboid")){
 		std::string  dd(":"),aspectRatio  = FParameters::getStr(argc,argv,"-lengths",  "1:1:2");
@@ -162,13 +166,13 @@ int main(int argc, char ** argv){
 		pos = aspectRatio.find(":");		aspectRatio.replace(pos,1," ");
 		std::stringstream ss(aspectRatio); ss >>A >> B >> C ;
 		unifRandonPointsOnCube(NbPoints, A,B,C,particles) ;
-		BoxWith = 0.5*FMath::Max(A,FMath::Max(B,C) );
+		BoxWith = FMath::Max(A,FMath::Max(B,C) );
 		FReal halfBW = BoxWith;
 		Centre.setPosition(halfBW,halfBW,halfBW);
 	}
 	else if(FParameters::existParameter(argc, argv, "-unitSphere")){
 		unifRandonPointsOnUnitSphere(NbPoints, particles) ;
-		BoxWith = 1.0 ;
+		BoxWith = 2.0 ;
 	}
 	else if(FParameters::existParameter(argc, argv, "-sphere")){
 		const FReal Radius  = FParameters::getValue(argc,argv,"-radius",  2.0);
@@ -211,53 +215,28 @@ int main(int argc, char ** argv){
     /////////////////////////////////////////////////////////////////////////
 	//                                           Save data
     /////////////////////////////////////////////////////////////////////////
-
-
 	//
-	//  Generate file for ScalFMM Loader
+	//  Generate FMA file for FFmaGenericLoader Loader
 	//
 	if(FParameters::existParameter(argc, argv, "-extraLength")){
 		extraRadius  = FParameters::getValue(argc,argv,"-extraLength",  0.0);
 		BoxWith += 2*extraRadius ;
 	}
-	if( ! FParameters::existParameter(argc, argv, "-bin")){
-		std::string name( genericFileName+ ".fma");
-		std::ofstream outfileA(name.c_str(), std::ofstream::out);
-		if(!outfileA) {
-			std::cout << "Cannot open file."<< std::endl;
-			exit(-1)	 ;
-		}
-		std::cout << "Writes in ascii FMA format  in file "<<name <<std::endl ;
-		std::cout << " Points are in a cube of size  "<< BoxWith << "  Centered in the Origin"<<std::endl;
-		//
-		outfileA << 	NbPoints << "  " << BoxWith << "  " << Centre.getX() << "  " << Centre.getY() << "  " << Centre.getZ() << std::endl;
-		j=0;
-		for(int i = 0 ; i< NbPoints; ++i, j+=4){
-			outfileA <<    particles[j]    << "       "    <<   particles[j+1]    << "       "   <<   particles[j+2]    << "       "   <<   particles[j+3]   <<std::endl;
-		}
+	bool binaryMode = false;
+	std::string name(genericFileName);
+
+	if(  FParameters::existParameter(argc, argv, "-bin")){
+		binaryMode = true;
+		name += ".bfma";
 	}
-	else{
-		std::string name( genericFileName+ ".bfma");
-		std::fstream outfile(name.c_str(),std::ifstream::out| std::ios::binary| std::ios::trunc);
-		if(!outfile) {
-			std::cout << "Cannot open file."<< std::endl;
-			return 1;
-		}
-		std::cout << "Writes in binary FMA format  in file "<< name<<std::endl ;
-		std::cout << " Points are in a cube of size  "<< BoxWith << "  Centered in the Origin"<<std::endl;
-		//
-		int typeFReal = sizeof(FReal) ;
-		outfile.write((char* )&typeFReal,sizeof(int));
-		outfile.write((char* )const_cast<int*>(&NbPoints),sizeof(FSize));
-		outfile.write((char*)&BoxWith,sizeof(BoxWith));
-		outfile.write((char*)Centre.getDataValue(),sizeof(FReal)*3);
-		//
-		outfile.write ((char* )&particles[0], 4*sizeof(FReal)*NbPoints);
-		outfile.flush();
-		//
+	else {
+		name += ".fma";
 	}
+	FFmaGenericWriter  writer(name,binaryMode) ;
+	writer.writeHeader(Centre,BoxWith, NbPoints, *ppart) ;
+	writer.writeArrayOfParticles(ppart, NbPoints);
 	//
-	//
+	//  Generate  file for visualization
 	//
 	if(FParameters::existParameter(argc, argv, "-visufmt")){
 		std::string visufile(""), fmt(FParameters::getStr(argc,argv,"-visufmt",   "vtp"));

Src/Core/FFmmAlgorithmThreadProc.hpp

@@ -450,9 +450,9 @@ private:
 
 
 		FLOG( FLog::Controller << "\tFinished (@Upward Pass (M2M) = "  << counterTime.tacAndElapsed() << " s)\n" );
-		FLOG( FLog::Controller << "\t\t Computation : " << computationCounter.cumulated() << " s\n" );
-		FLOG( FLog::Controller << "\t\t Prepare : " << prepareCounter.cumulated() << " s\n" );
-		FLOG( FLog::Controller << "\t\t Wait : " << waitCounter.cumulated() << " s\n" );
+		FLOG( FLog::Controller << "\t\t Computation :                          " << computationCounter.cumulated() << " s\n" );
+		FLOG( FLog::Controller << "\t\t Prepare :                                  " << prepareCounter.cumulated() << " s\n" );
+		FLOG( FLog::Controller << "\t\t Wait :                                       " << waitCounter.cumulated() << " s\n" );
 	}
 
 

Src/Kernels/P2P/FP2P.hpp

 #ifndef FP2P_HPP
 #define FP2P_HPP
 
-#include "../../Utils/FGlobal.hpp"
-#include "../../Utils/FMath.hpp"
+#include "Utils/FGlobal.hpp"
+#include "Utils/FMath.hpp"
 
 
 /**

Src/Utils/FTic.hpp

 // ===================================================================================
-// Copyright ScalFmm 2011 INRIA, Olivier Coulaud, Bérenger Bramas, Matthias Messner
+// 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.
 //

Src/Utils/FTrace.cpp

 // ===================================================================================
-// Copyright ScalFmm 2011 INRIA, Olivier Coulaud, Bérenger Bramas, Matthias Messner
+// 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.
 //
@@ -17,7 +17,7 @@
 #ifdef ScalFMM_USE_TRACE
 
 #if !defined (ScalFMM_USE_ITAC) && !defined (ScalFMM_USE_EZTRACE)
-int FTrace::Deep = 0;
+int   FTrace::Deep = 0;
 FTic FTrace::TimeSinceBegining;
 #endif
 

Tests/Kernels/DirectAlgorithm.cpp

@@ -65,8 +65,8 @@ struct MDParticle {
 
 // Simply create particles and try the kernels
 int main(int argc, char ** argv){
-
 	typedef FP2PParticleContainerIndexed<>                    ContainerClass;
+
 	typedef FSimpleLeaf< ContainerClass >                     LeafClass;
 
 #ifdef  ScalFMM_USE_BLAS

ToRemove/testDirectStored.cpp

+// ===================================================================================
+// 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".
+// ===================================================================================
+
+
+/**
+ *@author Cyrille Piacibello
+ * 
+ * This exec will be used to store the result of direct computation in
+ * Binary Files. Then, a kernel (Chebyshev) is called on the same file, and
+ * results are compared.
+ * 
+ * Format of result file :
+ * Each data is a FReal : posX,posY,posZ,physicalValue,forceX,forceY,forceZ,potential
+ */
+
+// ==== CMAKE =====
+// // @FUSE_BLAS
+// // ================
+//
+//
+#include <iostream>
+
+#include <cstdio>
+#include <cstdlib>
+#include "ScalFmmConfig.h"
+
+#include "../../Src/Utils/FTic.hpp"
+#include "../../Src/Utils/FParameters.hpp"
+
+#include "../../Src/Containers/FOctree.hpp"
+
+#include "../../Src/Components/FSimpleLeaf.hpp"
+#include "../../Src/Kernels/P2P/FP2P.hpp"
+#include "../../Src/Kernels/P2P/FP2PParticleContainerIndexed.hpp"
+
+#include "../../Src/Files/FFmaGenericLoader.hpp"
+#include "../../Src/Files/FFmaBinLoaderResult.hpp"
+
+#include "../../Src/Utils/FTic.hpp"
+
+#include "../../Src/Kernels/Chebyshev/FChebCell.hpp"
+#include "../../Src/Kernels/Interpolation/FInterpMatrixKernel.hpp"
+#include "../../Src/Kernels/Chebyshev/FChebKernel.hpp"
+#include "../../Src/Kernels/Chebyshev/FChebSymKernel.hpp"
+
+#include "../../Src/Core/FFmmAlgorithm.hpp"
+
+int main(int argc, char* argv[])
+{
+  // get info from commandline
+  const char* const defaultFilename = (sizeof(FReal) == sizeof(float))?
+    "../Data/test20k.bin.fma.single":
+    "unitCubeXYZQ20k.bfma";
+  const char* const filename        = FParameters::getStr(argc,argv,"-f", defaultFilename);
+  const char* const fileresult      = FParameters::getStr(argc,argv,"-fr","testWResult20k.fma");;
+  
+  //For Fmm Computation
+  const unsigned int TreeHeight    = FParameters::getValue(argc, argv, "-h", 5);
+  const unsigned int SubTreeHeight = FParameters::getValue(argc, argv, "-sh", 2);
+  
+  FTic time;
+  typedef FmaRPart TestParticle;
+//  struct TestParticle{
+//    FPoint position;
+//    FReal forces[3];
+//    FReal physicalValue;
+//    FReal potential;
+//  };
+  
+  printf("Input is %s, \n Results will be stored in %s \n",filename,fileresult);
+  
+  {
+    //First Part 
+    //Direct Computation and Storage of result
+
+    //open particle file
+    FFmaGenericLoader loader(filename);
+
+  
+    time.tic();
+    TestParticle* const particles = new TestParticle[loader.getNumberOfParticles()];
+    for(int idxPart = 0 ; idxPart < loader.getNumberOfParticles() ; ++idxPart){
+      FPoint position;
+      FReal physicalValue = 0.0;
+      loader.fillParticle(&position,&physicalValue);
+      // get copy
+      particles[idxPart].position       = position;
+      particles[idxPart].physicalValue  = physicalValue;
+      particles[idxPart].potential      = 0.0;
+      particles[idxPart].forces[0]      = 0.0;
+      particles[idxPart].forces[1]      = 0.0;
+      particles[idxPart].forces[2]      = 0.0;
+    }
+
+    time.tac();
+    printf("Elapsed Time for Loading %lld particles from File: \t %f\n",loader.getNumberOfParticles(),time.elapsed());
+  
+    //Direct Computation
+    time.tic();
+    for(int idxTarget = 0 ; idxTarget < loader.getNumberOfParticles() ; ++idxTarget){
+      for(int idxOther = idxTarget + 1 ; idxOther < loader.getNumberOfParticles() ; ++idxOther){
+	FP2P::MutualParticles(particles[idxTarget].position.getX(), particles[idxTarget].position.getY(),
+			      particles[idxTarget].position.getZ(),particles[idxTarget].physicalValue,
+			      &particles[idxTarget].forces[0],&particles[idxTarget].forces[1],
+			      &particles[idxTarget].forces[2],&particles[idxTarget].potential,
+			      particles[idxOther].position.getX(), particles[idxOther].position.getY(),
+			      particles[idxOther].position.getZ(),particles[idxOther].physicalValue,
+			      &particles[idxOther].forces[0],&particles[idxOther].forces[1],
+			      &particles[idxOther].forces[2],&particles[idxOther].potential);
+      }
+    }
+    time.tac();
+    printf("Elapsed Time for Direct Computation: \t %f\n",time.elapsed());
+  
+    //Write results in output file
+	FFmaGenericWriter writer(fileresult) ;
+  
+    //Size of elements to be written
+    
+  
+ //   int realSize = sizeof(FReal);
+    FSize nbPart   = loader.getNumberOfParticles();
+//    FReal boxWidth = loader.getBoxWidth() / 2;
+//    FReal centerX  = loader.getCenterOfBox().getX();
+//    FReal centerY  = loader.getCenterOfBox().getY();
+//    FReal centerZ  = loader.getCenterOfBox().getZ();
+//
+//    fwrite(&realSize,   sizeof(int),   1, fd);
+//    fwrite(&nbPart,     sizeof(FSize), 1, fd);
+//    fwrite(&boxWidth,   sizeof(FReal), 1, fd);
+//    fwrite(&centerX,    sizeof(FReal), 1, fd);
+//    fwrite(&centerY,    sizeof(FReal), 1, fd);
+//    fwrite(&centerZ,    sizeof(FReal), 1, fd);
+//
+//
+//    for(int idxPart = 0 ; idxPart < loader.getNumberOfParticles() ; ++idxPart)
+//      {
+//	fwrite( particles[idxPart].position.getDataValue(),realSize,3,fd);
+//	fwrite(&particles[idxPart].physicalValue,          realSize,1,fd);
+//	fwrite( particles[idxPart].forces,                 realSize,3,fd);
+//	fwrite(&particles[idxPart].potential,              realSize,1,fd);
+//      }
+    	writer.writeHeader(loader.getCenterOfBox(),BoxWith, nbPart,*particles) ;
+	writer.writeArrayOfParticles(particles, nbParticles);
+
+    delete [] particles; 
+    fclose(fd);
+  }
+  
+  //Second Part
+  {
+    //Fmm Computation and comparison to Stored results
+
+    // begin Chebyshev kernel
+
+    // accuracy
+    const unsigned int ORDER = 7;
+
+    // typedefs
+    typedef FP2PParticleContainerIndexed<> ContainerClass;
+    typedef FSimpleLeaf< ContainerClass >  LeafClass;
+
+    typedef FInterpMatrixKernelR MatrixKernelClass;
+    typedef FChebCell<ORDER> CellClass;
+    typedef FOctree<CellClass,ContainerClass,LeafClass> OctreeClass;
+
+    typedef FChebSymKernel<CellClass,ContainerClass,MatrixKernelClass,ORDER> KernelClass;
+    typedef FFmmAlgorithm<OctreeClass,CellClass,ContainerClass,KernelClass,LeafClass> FmmClass;
+
+
+    time.tic();
+    //Open result file to fill octree for Chebyshev kernel AND compare results
+    FFmaBinLoaderResult loader2(fileresult);
+    
+    // init oct-tree
+    OctreeClass tree(TreeHeight, SubTreeHeight, loader2.getBoxWidth(), loader2.getCenterOfBox());
+  
+    TestParticle* const particles2 = new TestParticle[loader2.getNumberOfParticles()];  
+    for(int idxPart = 0 ; idxPart < loader2.getNumberOfParticles() ; ++idxPart)
+      {
+	loader2.fillParticle(&particles2[idxPart].position,
+			     &particles2[idxPart].physicalValue,
+			     &particles2[idxPart].forces[0],
+			     &particles2[idxPart].forces[1],
+			     &particles2[idxPart].forces[2],
+			     &particles2[idxPart].potential);
+	tree.insert(FPoint(particles2[idxPart].position),idxPart,particles2[idxPart].physicalValue);
+      }
+    time.tac();
+    printf("Elapsed Time for Reading File: \t %f\n",time.elapsed());  
+    
+    time.tic();
+    KernelClass kernels(TreeHeight, loader2.getBoxWidth(), loader2.getCenterOfBox());
+    FmmClass algorithm(&tree, &kernels);
+    algorithm.execute();
+    time.tac();
+    printf("Elapsed Time for Fmm Computation: \t %f\n",time.elapsed());  
+ 
+
+    FMath::FAccurater potentialDiff;
+    FMath::FAccurater fx, fy, fz;
+
+    //Compare the kernel to the stored elements
+    {
+      tree.forEachLeaf([&](LeafClass* leaf){
+	  const FReal*const potentials = leaf->getTargets()->getPotentials();
+	  const FReal*const forcesX = leaf->getTargets()->getForcesX();
+	  const FReal*const forcesY = leaf->getTargets()->getForcesY();
+	  const FReal*const forcesZ = leaf->getTargets()->getForcesZ();
+	  const int nbParticlesInLeaf = leaf->getTargets()->getNbParticles();
+
+	  const FVector<int>& indexes = leaf->getTargets()->getIndexes();
+	
+	  for(int idxPart = 0 ; idxPart < nbParticlesInLeaf ; ++idxPart){
+	    const int indexPartOrig = indexes[idxPart];
+	    potentialDiff.add(particles2[indexPartOrig].potential,potentials[idxPart]);
+	    fx.add(particles2[indexPartOrig].forces[0],forcesX[idxPart]);
+	    fy.add(particles2[indexPartOrig].forces[1],forcesY[idxPart]);
+	    fz.add(particles2[indexPartOrig].forces[2],forcesZ[idxPart]);
+	  }
+	});
+      // Print for information
+      std::cout << "Potential " << potentialDiff << std::endl;
+      std::cout << "Fx " << fx << std::endl;
+      std::cout << "Fy " << fy << std::endl;
+      std::cout << "Fz " << fz << std::endl;
+    
+    }
+
+   }
+  return 0;
+}

ToRemove/testLoaderFMABinResult.cpp

+// ===================================================================================
+// 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".
+// ===================================================================================
+
+#include <iostream>
+
+#include <cstdio>
+#include <cstdlib>
+#include <time.h>
+
+#include "../../Src/Utils/FParameters.hpp"
+#include "../../Src/Utils/FTic.hpp"
+
+#include "../../Src/Containers/FOctree.hpp"
+#include "../../Src/Containers/FVector.hpp"
+
+#include "../../Src/Utils/FAssert.hpp"
+#include "../../Src/Utils/FPoint.hpp"
+
+#include "../../Src/Components/FBasicCell.hpp"
+
+#include "../../Src/Components/FSimpleLeaf.hpp"
+
+#include "../../Src/Files/FFmaGenericLoader.hpp"
+
+#include "../../Src/Components/FBasicParticleContainer.hpp"
+
+
+/**
+ * In this file we show an example of FBasicLoader use
+ * Inserting 2000000 particles ...
+ * Done  (5.77996).
+ * Deleting particles ...
+ * Done  (0.171918).
+ */
+
+int main(int argc, char ** argv ){
+	typedef FBasicParticleContainer<1>      ContainerClass;
+	typedef FSimpleLeaf< ContainerClass >                     LeafClass;
+	typedef FOctree< FBasicCell, ContainerClass , LeafClass >  OctreeClass;
+	///////////////////////What we do/////////////////////////////
+	std::cout << ">> This executable is useless to execute.\n";
+	std::cout << ">> It is only interesting to wath the code to understand\n";
+	std::cout << ">> how to use the FMA loader\n";
+	//////////////////////////////////////////////////////////////
+
+	// Use testLoaderFMABinCreate.exe to create this file
+	FTic counter;
+	const char* const filename = FParameters::getStr(argc,argv,"-f", "../Data/test20k.bin.fma.double.res");
+	std::cout << "Opening : " << filename << "\n";
+
+	// open basic result particles loader
+	FFmaBinLoaderResult loader(filename);
+	if(!loader.isOpen()){
+		std::cout << "Loader Error, " << filename << "is missing\n";
+		return 1;
+	}
+
+	{
+		// octree
+		OctreeClass tree(FParameters::getValue(argc,argv,"-h", 5), FParameters::getValue(argc,argv,"-sh", 3),
+				loader.getBoxWidth(), loader.getCenterOfBox());
+
+		// -----------------------------------------------------
+		std::cout << "Inserting " << loader.getNumberOfParticles() << " particles ..." << std::endl;
+		counter.tic();
+
+		FPoint particlePosition;
+		FReal physicalValue = 0.0;
+		FReal forces[3];
+		FReal potential;
+		for(int idxPart = 0 ; idxPart < loader.getNumberOfParticles() ; ++idxPart){
+			loader.fillParticle(&particlePosition,&physicalValue,forces,&forces[1],&forces[2],&potential);
+			tree.insert(particlePosition,physicalValue);
+		}
+
+		counter.tac();
+		std::cout << "Done  " << "(" << counter.elapsed() << ")." << std::endl;
+
+		// -----------------------------------------------------
+		std::cout << "Deleting particles ..." << std::endl;
+		counter.tic();
+	}
+	counter.tac();
+	std::cout << "Done  " << "(" << counter.elapsed() << ")." << std::endl;
+	// -----------------------------------------------------