LBPM/tests/TestSubphase.cpp
2021-01-04 19:33:27 -05:00

143 lines
4.4 KiB
C++

// Sequential blob analysis
// Reads parallel simulation data and performs connectivity analysis
// and averaging on a blob-by-blob basis
// James E. McClure 2014
#include <iostream>
#include <math.h>
#include "common/Communication.h"
#include "analysis/analysis.h"
#include "analysis/SubPhase.h"
std::shared_ptr<Database> loadInputs( int nprocs )
{
//auto db = std::make_shared<Database>( "Domain.in" );
auto db = std::make_shared<Database>();
db->putScalar<int>( "BC", 0 );
db->putVector<int>( "nproc", { 1, 1, 1 } );
db->putVector<int>( "n", { 100, 100, 100 } );
db->putScalar<int>( "nspheres", 1 );
db->putVector<double>( "L", { 1, 1, 1 } );
return db;
}
int main(int argc, char **argv)
{
// Initialize MPI
Utilities::startup( argc, argv );
Utilities::MPI comm( MPI_COMM_WORLD );
int rank = comm.getRank();
int nprocs = comm.getSize();
{ // Limit scope so variables that contain communicators will free before MPI_Finialize
if ( rank==0 ) {
printf("-----------------------------------------------------------\n");
printf("Unit test for torus (Euler-Poincarie characteristic) \n");
printf("-----------------------------------------------------------\n");
}
//.......................................................................
// Reading the domain information file
//.......................................................................
int i,j,k,n;
// Load inputs
auto db = loadInputs( nprocs );
int Nx = db->getVector<int>( "n" )[0];
int Ny = db->getVector<int>( "n" )[1];
int Nz = db->getVector<int>( "n" )[2];
int nprocx = db->getVector<int>( "nproc" )[0];
int nprocy = db->getVector<int>( "nproc" )[1];
int nprocz = db->getVector<int>( "nproc" )[2];
if (rank==0){
printf("********************************************************\n");
printf("Sub-domain size = %i x %i x %i\n",Nx,Ny,Nz);
printf("********************************************************\n");
}
// Get the rank info
auto Dm = std::make_shared<Domain>(db,comm);
auto Averages = std::make_shared<SubPhase>(Dm);
Nx += 2;
Ny += 2;
Nz += 2;
//.......................................................................
for ( k=1;k<Nz-1;k++){
for ( j=1;j<Ny-1;j++){
for ( i=1;i<Nx-1;i++){
n = k*Nx*Ny+j*Nx+i;
Dm->id[n] = 1;
}
}
}
//.......................................................................
Dm->CommInit(); // Initialize communications for domains
//.......................................................................
//.......................................................................
// Assign the phase ID field based and the signed distance
//.......................................................................
double R1,R2;
double CX,CY,CZ; //CY1,CY2;
CX=Nx*nprocx*0.5;
CY=Ny*nprocy*0.5;
CZ=Nz*nprocz*0.5;
R1 = Nx*nprocx*0.2; // middle radius
R2 = Nx*nprocx*0.1; // donut thickness
//
//CY1=Nx*nprocx*0.5+R1;
//CY2=Ny*nprocy*0.5-R1;
double x,y,z;
if (rank==0) printf("Initializing the system \n");
for ( k=1;k<Nz-1;k++){
for ( j=1;j<Ny-1;j++){
for ( i=1;i<Nx-1;i++){
n = k*Nx*Ny+j*Nx+i;
// global position relative to center
x = Dm->iproc()*Nx+i - CX;
y = Dm->jproc()*Ny+j - CY;
z = Dm->kproc()*Nz+k - CZ;
// Shrink the sphere sizes by two voxels to make sure they don't touch
Averages->SDs(i,j,k) = 100.0;
//..............................................................................
// Single torus
Averages->Phi(i,j,k) = sqrt((sqrt(x*x+y*y) - R1)*(sqrt(x*x+y*y) - R1) + z*z) - R2;
// Double torus
/* y = Dm->jproc()*Ny+j - CY1;
//z = Dm->kproc()*Nz+k - CZ +R1;
Averages->Phi(i,j,k) = sqrt((sqrt(x*x+y*y) - R1)*(sqrt(x*x+y*y) - R1) + z*z) - R2;
y = Dm->jproc()*Ny+j - CY2;
//z = Dm->kproc()*Nz+k - CZ-R1;
Averages->Phi(i,j,k) = min(Averages->Phi(i,j,k),
sqrt((sqrt(x*x+y*y) - R1)*(sqrt(x*x+y*y) - R1) + z*z) - R2);
*///..............................................................................
//Averages->Phi(i,j,k) = - Averages->Phi(i,j,k);
if (Averages->Phi(i,j,k) > 0.0){
Dm->id[n] = 2;
}
else{
Dm->id[n] = 1;
}
}
}
}
if (rank==0) printf("Aggregating labels \n");
Averages->AggregateLabels("phase_id.raw");
// Averages->Reduce();
} // Limit scope so variables that contain communicators will free before MPI_Finialize
Utilities::shutdown();
return 0;
}