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Commit 6bdb3349 authored by Pietro Incardona's avatar Pietro Incardona
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example/Vector/2_expressions/Makefile 0 → 100644
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include ../../example.mk
CC=mpic++
LDIR =
OBJ = main.o
%.o: %.cpp
$(CC) -O3 -c --std=c++11 -o $@ $< $(INCLUDE_PATH)
expr: $(OBJ)
$(CC) -o $@ $^ $(CFLAGS) $(LIBS_PATH) $(LIBS)
all: expr
.PHONY: clean all
clean:
rm -f *.o *~ core expr
example/Vector/2_expressions/config.cfg 0 → 100644
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− 0
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[pack]
files = main.cpp Makefile
example/Vector/2_expressions/expr 0 → 100755
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File added
example/Vector/2_expressions/main.cpp 0 → 100644
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#include "Vector/vector_dist.hpp"
#include "Operators/Vector/vector_dist_operators.hpp"
/*
* ### WIKI 1 ###
*
* ## Simple example to show how expression work with vector
*
* This example show how to use expressions to do complex calculation on particles
*
* ### WIKI END ###
*
*/
constexpr int A = 0;
constexpr int B = 1;
constexpr int C = 2;
constexpr int D = 3;
// First we define the kernel function (an exponential in this case)
struct exp_kernel
{
// variance of the exponential
float sigma;
// Constructor require to define the variance
exp_kernel(float sigma)
:sigma(sigma)
{}
// The kernel function accept the position p, the position q
inline Point<3,double> value(const Point<3,float> & p, const Point<3,float> & q,Point<3,double> & Pp,Point<3,double> & Pq)
{
// calculate the distance between p and q
float dist = norm(p-q);
return Pq * exp(- dist * dist / sigma);
}
};
int main(int argc, char* argv[])
{
//
// ### WIKI 2 ###
//
// Here we Initialize the library, than we create a uniform random generator between 0 and 1 to to generate particles
// randomly in the domain, we create a Box that define our domain, boundary conditions, and ghost
//
// initialize the library
openfpm_init(&argc,&argv);
// Here we define our domain a 2D box with intervals from 0 to 1.0
Box<3,float> domain({0.0,0.0,0.0},{1.0,1.0,1.0});
// Here we define the boundary conditions of our problem
size_t bc[3]={PERIODIC,PERIODIC,PERIODIC};
// extended boundary around the domain, and the processor domain
Ghost<3,float> g(0.01);
// Delta t
double dt = 0.01;
// distributed vectors
vector_dist<3,double, aggregate<double,double,Point<3,double>,Point<3,double>> > vd(4096,domain,bc,g);
vector_dist<3,double, aggregate<double> > vd2(4096,domain,bc,g);
// Assign random position to the vector dist
auto it = vd.getDomainIterator();
while (it.isNext())
{
auto p = it.get();
vd.getPos(p)[0] = (double)rand() / RAND_MAX;
vd.getPos(p)[1] = (double)rand() / RAND_MAX;
vd.getPos(p)[2] = (double)rand() / RAND_MAX;
vd2.getPos(p)[0] = (double)rand() / RAND_MAX;
vd2.getPos(p)[1] = (double)rand() / RAND_MAX;
vd2.getPos(p)[2] = (double)rand() / RAND_MAX;
++it;
}
// Redistribute the particles and synchronize the ghost
vd.map();
vd.map();
//
// ### WIKI ###
//
// Here we create alias for the properties of the vectors
//
// vA is an alias for the property A of the vector vd
// vB is an alias for the property V of the vector vd
// vC is ...
auto vA = getV<A>(vd);
auto vB = getV<B>(vd);
auto vC = getV<C>(vd);
auto vD = getV<D>(vd);
auto vPOS = getV<PROP_POS>(vd);
// same concept for the vector v2
auto v2A = getV<0>(vd);
auto v2POS = getV<PROP_POS>(vd);
// Assign 1 to the property A
vA = 1;
// Equal the property A to B
vB = vA;
// Assign to the property C and for each component 4.0
vC = 4;
// Assign te position of the particle to the property D
vD = vPOS;
//
// ### WIKI ###
//
// All these expression are applied point wise for each particles
//
// P.S.
//
// the * is a scalar product in case of vectors
// simple multiplication in case of scalar
//
//
// In vA we set the distance from the origin for each particle
vA = norm(vPOS);
//
// For each particle p calculate the expression under
//
// NOTE sin(2.0 * vD) and exp(5.0 * vD) are both vector
//
// so this is a scalar product
// |
// V
vA = vA + sin(2.0 * vD) * exp(1.2 * vD);
// |_____________________________|
// |
// V
// and this is a number
//
//
// pmul indicate component-wise multiplication the same as .* in Matlab
vC = pmul(vD,vD) * dt;
// Normalization of the vector vD
vD = vD / sqrt( vD * vD );
// we write the result on file
vd.write("output");
// We can also apply the expression in a second moment like this
Point<3,double> p0({0.5,0.5,0.5});
// we cannot use p0 directly we have to create an expression from it
auto p0_e = getVExpr(p0);
// As soon as the second vector have the some number of particle as v we can apply the expr1 to the v2 with v2D
auto expr1 = 1.0/2.0/sqrt(M_PI)*exp(-(v2POS-p0_e)*(v2POS-p0_e)/2.0);
// here is executed on all particles of v2 and the result assigned to the property A of v2
v2A = expr1;
//
// ### WIKI ###
//
// Each operator= produce a iteration across particles. It is possible to use the function assign
// to execute multiple instructions in one cycle
//
// assign support an variable of istructions
//
assign(vA,1.0, // vA = 1
vB,expr1, // vB = 1.0/2.0/sqrt(M_PI)*exp(-(v2POS-p0_e)*(v2POS-p0_e)/2.0)
vC,vD/norm(vD), // vC = vD/norm(vD)
vD,2.0*vC); // vD = 2.0*vC
// As soon as the vector v have the some number of particle as v2 we can apply the expr1 to v
vA = expr1;
//
// ### WIKI ###
//
// we shown the simple usage of simple point-wise function like sin
// and exp. Here we show the function applyKernel than encapsulate
// the operation
//
// \sum_{q = Neighborhood p} Kernel(x_p,x_q,Up,Uq) * expression
//
// where x_p is the position of the particle p
// x_q is the position of the particle q
// U_p is the value of the property carried by the particle p
// U_q is the value of the property carried by the particle q
//
//
exp_kernel ker(0.5);
auto cl = vd.getCellList(0.1);
// We are going to do some calculation that require ghost, so sync it
vd.ghost_get<3>();
// Here we create the
// A renormalizaion of the vector vD is calculated on fly
//
// and than For each particle p
//
// \sum_{q = Neighborhood p} Ker(x_p,x_q,D_p,D_q) * \frac{D}{norm(D)}
//
//
// P.S.
//
// Cerefull here ApplyKernel is a special function if it act on property D we cannot write on property D
// ( vD = ... is an error and produce unpredictable result )
//
vC = applyKernel_in( vD / norm(vD) ,vd,cl,ker) + vD;
// ok, because does not use applyKernel
vD = vD / norm(vD);
//
// ### WIKI 9 ###
//
// Output the particle position for each processor
//
vd.deleteGhost();
vd.write("output2");
//
// ### WIKI 10 ###
//
// Deinitialize the library
//
openfpm_finalize();
}
example/Vector/2_expressions/out 0 → 100644
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install
+ 48
− 7
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......@@ -329,14 +329,8 @@ else
fi
### Create example.mk
# Where openfpm is going to be installed
install_base=$(cat install_dir)
echo "INCLUDE_PATH=-I. -I$install_base/openfpm_numerics/include -I$install_base/openfpm_pdata/include/config -I$install_base/openfpm_pdata/include -I$install_base/openfpm_data/include -I$install_base/openfpm_vcluster/include -I$install_base/openfpm_io/include -I$install_base/openfpm_devices/include -I$i_dir/METIS/include -I$i_dir/PARMETIS/include -I$i_dir/BOOST/include -I$i_dir/HDF5/include $lin_alg_inc" > example.mk
echo "LIBS_PATH= -L$install_base/openfpm_devices/lib -L$install_base/openfpm_pdata/lib -L$install_base/openfpm_vcluster/lib -L$i_dir/METIS/lib -L$i_dir/PARMETIS/lib -L$i_dir/BOOST/lib -L$i_dir/HDF5/lib $lin_alg_dir" >> example.mk
echo "LIBS=-lvcluster -lofpm_pdata -lofpmmemory -lparmetis -lmetis -lboost_iostreams -lhdf5 $lin_alg_lib" >> example.mk
echo "LIBS_SE2=-lvcluster -lofpmmemory_se2 -lparmetis -lmetis -lboost_iostreams -lhdf5 $lin_alg_lib" >> example.mk
cp example.mk src/example.mk
cp example.mk example/example.mk
make clean
make
......@@ -364,6 +358,10 @@ echo ""
echo -e "\033[1;34;5m ---------- Mandatory packages --------- \033[0m"
echo ""
example_library_path=""
example_library=""
example_include_path=""
if [ -d "$i_dir/MPI" ]; then
installation_report="$installation_report \033[92;1mMPI\033[0m Installed: \033[1m $i_dir/MPI \033[0m\n"
bash_path="$bash_path:$i_dir/MPI/bin"
......@@ -375,16 +373,25 @@ fi
if [ -d "$i_dir/METIS" ]; then
installation_report="$installation_report \033[92;1mMETIS\033[0m Installed: \033[1m $i_dir/METIS \033[0m\n"
bash_library="$bash_library:$i_dir/METIS/lib"
example_library_path="$example_library_path -L$i_dir/METIS/lib"
example_library="$example_library"
example_include_path="$example_include_path -I$i_dir/METIS/include"
fi
if [ -d "$i_dir/PARMETIS" ]; then
installation_report="$installation_report \033[92;1mPARMETIS\033[0m Installed: \033[1m $i_dir/PARMETIS \033[0m\n"
bash_library="$bash_library:$i_dir/PARMETIS/lib"
example_library_path="$example_library_path -L$i_dir/PARMETIS/lib"
example_library="$example_library"
example_include_path="$example_include_path -I$i_dir/PARMETIS/include"
fi
if [ -d "$i_dir/BOOST" ]; then
installation_report="$installation_report \033[92;1mBOOST\033[0m Installed: \033[1m $i_dir/BOOST \033[0m\n"
bash_library="$bash_library:$i_dir/BOOST/lib"
example_library_path="$example_library_path -L$i_dir/BOOST/lib"
example_library="$example_library"
example_include_path="$example_include_path -I$i_dir/BOOST/include"
elif [ $BOOST_System_prv -eq 1 ]; then
installation_report="$installation_report \033[92;1mBOOST\033[0m Installed: \033[1m System installation \033[0m\n"
fi
......@@ -392,6 +399,9 @@ fi
if [ -d "$i_dir/HDF5" ]; then
installation_report="$installation_report \033[92;1mHDF5\033[0m Installed: \033[1m $i_dir/HDF5 \033[0m\n"
bash_library="$bash_library:$i_dir/HDF5/lib"
example_library_path="$example_library_path -L$i_dir/HDF5/lib"
example_library="$example_library"
example_include_path="$example_include_path -I$i_dir/HDF5/include"
fi
echo -e "$installation_report"
......@@ -405,12 +415,18 @@ installation_report=""
if [ -d "$i_dir/PETSC" ]; then
installation_report="$installation_report \033[92;1mPETSC\033[0m Installed: \033[1m $i_dir/PETSC \033[0m\n"
bash_library="$bash_library:$i_dir/PETSC/lib"
example_library_path="$example_library_path -L$i_dir/PETSC/lib"
example_library="$example_library"
example_include_path="$example_include_path -I$i_dir/PETSC/include"
else
installation_report="$installation_report \033[91;1mPETSC\033[0m Installed: \033[1m NO \033[0m\n"
fi
if [ -d "$i_dir/EIGEN" ]; then
installation_report="$installation_report \033[92;1mEIGEN\033[0m Installed: \033[1m $i_dir/EIGEN \033[0m\n"
example_library_path="$example_library_path"
example_library="$example_library"
example_include_path="$example_include_path -I$i_dir/EIGEN/include"
fi
echo -e "$installation_report"
......@@ -422,6 +438,9 @@ installation_report=""
if [ -d "$i_dir/TRILINOS" ]; then
installation_report="$installation_report \033[92;1mTRILINOS\033[0m Installed: \033[1m $i_dir/TRILINOS \033[0m\n"
bash_library="$bash_library:$i_dir/TRILINOS/lib"
example_library_path="$example_library_path"
example_library="$example_library"
example_include_path="$example_include_path -I$i_dir/TRILINOS/include"
else
installation_report="$installation_report \033[91;1mTRILINOS\033[0m Installed: \033[1m NO \033[0m\n"
fi
......@@ -429,6 +448,8 @@ fi
if [ -d "$i_dir/OPENBLAS" ]; then
installation_report="$installation_report \033[92;1mOPENBLAS\033[0m Installed: \033[1m $i_dir/OPENBLAS \033[0m\n"
bash_library="$bash_library:$i_dir/OPENBLAS/lib"
example_library_path="$example_library_path"
example_library="$example_library"
else
installation_report="$installation_report \033[91;1mOPENBLAS\033[0m Installed: \033[1m NO \033[0m\n"
fi
......@@ -436,6 +457,9 @@ fi
if [ -d "$i_dir/SUITESPARSE" ]; then
installation_report="$installation_report \033[92;1mSUITESPARSE\033[0m Installed: \033[1m $i_dir/SUITESPARSE \033[0m\n"
bash_library="$bash_library:$i_dir/SUITESPARSE/lib"
example_library_path="$example_library_path -L$i_dir/SUITESPARSE/lib"
example_library="$example_library"
example_include_path="$example_include_path -I$i_dir/SUITESPARSE/include"
else
installation_report="$installation_report \033[91;1mSUITESPARSE\033[0m Installed: \033[1m NO \033[0m\n"
fi
......@@ -443,6 +467,8 @@ fi
if [ -d "$i_dir/SCALAPACK" ]; then
installation_report="$installation_report \033[92;1mSCALAPACK\033[0m Installed: \033[1m $i_dir/SCALAPACK \033[0m\n"
bash_library="$bash_library:$i_dir/SCALAPACK/lib"
example_library_path="$example_library_path"
example_library="$example_library"
else
installation_report="$installation_report \033[91;1mSCALAPACK\033[0m Installed: \033[1m NO \033[0m\n"
fi
......@@ -450,6 +476,8 @@ fi
if [ -d "$i_dir/MUMPS" ]; then
installation_report="$installation_report \033[92;1mMUMPS\033[0m Installed: \033[1m $i_dir/MUMPS \033[0m\n"
bash_library="$bash_library:$i_dir/MUMPS/lib"
example_library_path="$example_library_path"
example_library="$example_library"
else
installation_report="$installation_report \033[91;1mMUMPS\033[0m Installed: \033[1m NO \033[0m\n"
fi
......@@ -457,6 +485,8 @@ fi
if [ -d "$i_dir/SUPERLU_DIST" ]; then
installation_report="$installation_report \033[92;1mSUPERLU_DIST\033[0m Installed: \033[1m $i_dir/SUPERLU_DIST \033[0m\n"
bash_library="$bash_library:$i_dir/SUPERLU_DIST/lib"
example_library_path="$example_library_path"
example_library="$example_library"
else
installation_report="$installation_report \033[91;1mSUPERLU_DIST\033[0m Installed: \033[1m NO \033[0m\n"
fi
......@@ -464,6 +494,8 @@ fi
if [ -d "$i_dir/HYPRE" ]; then
installation_report="$installation_report \033[92;1mHYPRE\033[0m Installed: \033[1m $i_dir/HYPRE \033[0m\n"
bash_library="$bash_library:$i_dir/HYPRE/lib"
example_library_path="$example_library_path"
example_library="$example_library"
else
installation_report="$installation_report \033[91;1mHYPRE\033[0m Installed: \033[1m NO \033[0m\n"
fi
......@@ -476,6 +508,15 @@ bash_library="$bash_library\""
echo "$bash_path" > $HOME/openfpm_vars
echo "$bash_library" >> $HOME/openfpm_vars
### Create example.mk
echo "INCLUDE_PATH=-I. -I$install_base/openfpm_numerics/include -I$install_base/openfpm_pdata/include/config -I$install_base/openfpm_pdata/include -I$install_base/openfpm_data/include -I$install_base/openfpm_vcluster/include -I$install_base/openfpm_io/include -I$install_base/openfpm_devices/include $example_include_path $lin_alg_inc" > example.mk
echo "LIBS_PATH= -L$install_base/openfpm_devices/lib -L$install_base/openfpm_pdata/lib -L$install_base/openfpm_vcluster/lib $example_library_path $lin_alg_dir" >> example.mk
echo "LIBS=-lvcluster -lofpm_pdata -lofpmmemory -lparmetis -lmetis -lboost_iostreams -lhdf5 $lin_alg_lib" >> example.mk
echo "LIBS_SE2=-lvcluster -lofpmmemory_se2 -lparmetis -lmetis -lboost_iostreams -lhdf5 $lin_alg_lib" >> example.mk
cp example.mk src/example.mk
cp example.mk example/example.mk
echo -e "$installation_report"
echo ""
echo ""
......
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