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LBPM/tests/TestBubbleDFH.cpp
James McClure 9bc8100a1d debugging wide halo
2021-01-15 16:33:57 -05:00

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#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <iostream>
#include <exception>
#include <stdexcept>
#include <fstream>
#include "common/Communication.h"
#include "analysis/TwoPhase.h"
#include "analysis/runAnalysis.h"
#include "common/MPI.h"
#include "ProfilerApp.h"
#include "threadpool/thread_pool.h"
/*
* Simulator for two-phase flow in porous media
* James E. McClure 2013-2018
*/
using namespace std;
//*************************************************************************
// Implementation of Two-Phase Immiscible LBM
//*************************************************************************
int main(int argc, char **argv)
{
// Initialize MPI
Utilities::startup( argc, argv, true );
Utilities::MPI comm( MPI_COMM_WORLD );
int rank = comm.getRank();
int nprocs = comm.getSize();
int check=0;
{ // Limit scope so variables that contain communicators will free before MPI_Finialize
int i,j,k,n,Np;
if (rank == 0){
printf("********************************************************\n");
printf("Running DFH/Color LBM \n");
printf("********************************************************\n");
}
// Initialize compute device
int device=ScaLBL_SetDevice(rank);
printf("Using GPU ID %i for rank %i \n",device,rank);
ScaLBL_DeviceBarrier();
comm.barrier();
PROFILE_ENABLE(1);
//PROFILE_ENABLE_TRACE();
//PROFILE_ENABLE_MEMORY();
PROFILE_SYNCHRONIZE();
PROFILE_START("Main");
Utilities::setErrorHandlers();
if ( argc < 2 ) {
std::cerr << "Invalid number of arguments, no input file specified\n";
return -1;
}
auto filename = argv[1];
auto db = std::make_shared<Database>( filename );
auto domain_db = db->getDatabase( "Domain" );
auto color_db = db->getDatabase( "Color" );
auto analysis_db = db->getDatabase( "Analysis" );
if (rank == 0){
printf("********************************************************\n");
printf("Running Color LBM \n");
printf("********************************************************\n");
}
// Initialize compute device
// int device=ScaLBL_SetDevice(rank);
ScaLBL_DeviceBarrier();
comm.barrier();
Utilities::setErrorHandlers();
// Variables that specify the computational domain
string FILENAME;
// Color Model parameters
int timestepMax = color_db->getScalar<int>( "timestepMax" );
double tauA = color_db->getWithDefault<double>( "tauA", 1.0 );
double tauB = color_db->getWithDefault<double>( "tauB", 1.0 );
double rhoA = color_db->getWithDefault<double>( "rhoA", 1.0 );
double rhoB = color_db->getWithDefault<double>( "rhoB", 1.0 );
double Fx = color_db->getVector<double>( "F" )[0];
double Fy = color_db->getVector<double>( "F" )[1];
double Fz = color_db->getVector<double>( "F" )[2];
double alpha = color_db->getWithDefault<double>( "alpha", 0.001 );
double beta = color_db->getWithDefault<double>( "beta", 0.95 );
bool Restart = color_db->getWithDefault<bool>( "Restart", false );
double din = color_db->getWithDefault<double>( "din", 1.0 );
double dout = color_db->getWithDefault<double>( "dout", 1.0 );;
double inletA=1.f;
double inletB=0.f;
double outletA=0.f;
double outletB=1.f;
double flux = 10.f;
// Read domain values
auto L = domain_db->getVector<double>( "L" );
auto size = domain_db->getVector<int>( "n" );
auto nproc = domain_db->getVector<int>( "nproc" );
int BoundaryCondition = domain_db->getWithDefault<int>( "BC", 0 );
int Nx = size[0];
int Ny = size[1];
int Nz = size[2];
int nprocx = nproc[0];
int nprocy = nproc[1];
int nprocz = nproc[2];
int timestep = 6;
if (BoundaryCondition==4) flux = din*rhoA; // mass flux must adjust for density (see formulation for details
// Get the rank info
const RankInfoStruct rank_info(rank,nprocx,nprocy,nprocz);
comm.barrier();
if (nprocs != nprocx*nprocy*nprocz){
printf("nprocx = %i \n",nprocx);
printf("nprocy = %i \n",nprocy);
printf("nprocz = %i \n",nprocz);
INSIST(nprocs == nprocx*nprocy*nprocz,"Fatal error in processor count!");
}
if (rank==0){
printf("********************************************************\n");
printf("tau (non-wetting) = %f \n", tauA);
printf("tau (wetting) = %f \n", tauB);
printf("density (non-wetting) = %f \n", rhoA);
printf("density (wetting) = %f \n", rhoB);
printf("alpha = %f \n", alpha);
printf("beta = %f \n", beta);
printf("gamma_{wn} = %f \n", 5.796*alpha);
printf("Force(x) = %f \n", Fx);
printf("Force(y) = %f \n", Fy);
printf("Force(z) = %f \n", Fz);
printf("Sub-domain size = %i x %i x %i\n",Nx,Ny,Nz);
printf("Parallel domain size = %i x %i x %i\n",nprocx,nprocy,nprocz);
if (BoundaryCondition==0) printf("Periodic boundary conditions will applied \n");
if (BoundaryCondition==1) printf("Pressure boundary conditions will be applied \n");
if (BoundaryCondition==2) printf("Velocity boundary conditions will be applied \n");
if (BoundaryCondition==3) printf("Dynamic pressure boundary conditions will be applied \n");
if (BoundaryCondition==4) printf("Average flux boundary conditions will be applied \n");
if (!Restart) printf("Initial conditions assigned from phase ID file \n");
if (Restart) printf("Initial conditions assigned from restart file \n");
printf("********************************************************\n");
}
// Initialized domain and averaging framework for Two-Phase Flow
bool pBC;
if (BoundaryCondition==1 || BoundaryCondition==3 || BoundaryCondition == 4)
pBC=true;
else
pBC=false;
// Full domain used for averaging (do not use mask for analysis)
auto Dm = std::make_shared<Domain>(domain_db,comm);
for (int i=0; i<Dm->Nx*Dm->Ny*Dm->Nz; i++) Dm->id[i] = 1;
auto Averages = std::make_shared<TwoPhase>(Dm);
// TwoPhase Averages(Dm);
Dm->CommInit();
// Mask that excludes the solid phase
auto Mask = std::make_shared<Domain>(domain_db,comm);
comm.barrier();
Nx+=2; Ny+=2; Nz += 2;
int N = Nx*Ny*Nz;
//.......................................................................
if (rank == 0) printf("Read input media... \n");
//.......................................................................
//.......................................................................
// Filenames used
char LocalRankString[8];
char LocalRankFilename[40];
char LocalRestartFile[40];
sprintf(LocalRankString,"%05d",rank);
sprintf(LocalRankFilename,"%s%s","ID.",LocalRankString);
sprintf(LocalRestartFile,"%s%s","Restart.",LocalRankString);
// printf("Local File Name = %s \n",LocalRankFilename);
// .......... READ THE INPUT FILE .......................................
// char value;
auto id = new char[N];
double sum;
//...........................................................................
if (rank == 0) cout << "Setting up bubble..." << endl;
double BubbleRadius = 15.5; // Radius of the capillary tube
sum=0; Np=0;
for (k=0;k<Nz;k++){
for (j=0;j<Ny;j++){
for (i=0;i<Nx;i++){
n = k*Nx*Ny + j*Nz + i;
Averages->SDs(i,j,k) = 100.f;
// Initialize phase positions field
if (Averages->SDs(i,j,k) < 0.0){
id[n] = 0;
}
else {
sum++;
Np++;
}
}
}
}
// Initialize the bubble
for (k=0;k<Nz;k++){
for (j=0;j<Ny;j++){
for (i=0;i<Nx;i++){
int n = k*Nx*Ny + j*Nz + i;
int iglobal= i+(Nx-2)*Dm->iproc();
int jglobal= j+(Ny-2)*Dm->jproc();
int kglobal= k+(Nz-2)*Dm->kproc();
// Initialize phase position field for parallel bubble test
if ((iglobal-0.5*(Nx-2)*nprocx)*(iglobal-0.5*(Nx-2)*nprocx)
+(jglobal-0.5*(Ny-2)*nprocy)*(jglobal-0.5*(Ny-2)*nprocy)
+(kglobal-0.5*(Nz-2)*nprocz)*(kglobal-0.5*(Nz-2)*nprocz) < BubbleRadius*BubbleRadius){
id[n] = 2;
}
else{
id[n]=1;
}
}
}
}
//.........................................................
// don't perform computations at the eight corners
id[0] = id[Nx-1] = id[(Ny-1)*Nx] = id[(Ny-1)*Nx + Nx-1] = 0;
id[(Nz-1)*Nx*Ny] = id[(Nz-1)*Nx*Ny+Nx-1] = id[(Nz-1)*Nx*Ny+(Ny-1)*Nx] = id[(Nz-1)*Nx*Ny+(Ny-1)*Nx + Nx-1] = 0;
//.........................................................
// Initialize communication structures in averaging domain
for (i=0; i<Mask->Nx*Mask->Ny*Mask->Nz; i++) Mask->id[i] = id[i];
Mask->CommInit();
auto PhaseLabel = new double[N];
//...........................................................................
if (rank==0) printf ("Create ScaLBL_Communicator \n");
// Create a communicator for the device (will use optimized layout)
auto ScaLBL_Comm = std::make_shared<ScaLBL_Communicator>(Mask);
int Npad=(Np/16 + 2)*16;
if (rank==0) printf ("Set up memory efficient layout Npad=%i \n",Npad);
IntArray Map(Nx,Ny,Nz);
auto neighborList= new int[18*Npad];
Np = ScaLBL_Comm->MemoryOptimizedLayoutAA(Map,neighborList,Mask->id.data(),Np,1);
comm.barrier();
//...........................................................................
// MAIN VARIABLES ALLOCATED HERE
//...........................................................................
// LBM variables
if (rank==0) printf ("Allocating distributions \n");
//......................device distributions.................................
int dist_mem_size = Np*sizeof(double);
int neighborSize=18*(Np*sizeof(int));
int *NeighborList;
int *dvcMap;
double *fq, *Aq, *Bq;
double *Den, *Phi;
double *SolidPotential;
double *Velocity;
double *Gradient;
double *Pressure;
//...........................................................................
ScaLBL_AllocateDeviceMemory((void **) &NeighborList, neighborSize);
ScaLBL_AllocateDeviceMemory((void **) &dvcMap, sizeof(int)*Np);
ScaLBL_AllocateDeviceMemory((void **) &fq, 19*dist_mem_size);
ScaLBL_AllocateDeviceMemory((void **) &Aq, 7*dist_mem_size);
ScaLBL_AllocateDeviceMemory((void **) &Bq, 7*dist_mem_size);
ScaLBL_AllocateDeviceMemory((void **) &Den, 2*dist_mem_size);
ScaLBL_AllocateDeviceMemory((void **) &Phi, sizeof(double)*Np);
ScaLBL_AllocateDeviceMemory((void **) &Pressure, sizeof(double)*Np);
ScaLBL_AllocateDeviceMemory((void **) &Velocity, 3*sizeof(double)*Np);
ScaLBL_AllocateDeviceMemory((void **) &Gradient, 3*sizeof(double)*Np);
ScaLBL_AllocateDeviceMemory((void **) &SolidPotential, 3*sizeof(double)*Np);
//...........................................................................
// Update GPU data structures
if (rank==0) printf ("Setting up device map and neighbor list \n");
int *TmpMap;
TmpMap=new int[Np];
for (k=1; k<Nz-1; k++){
for (j=1; j<Ny-1; j++){
for (i=1; i<Nx-1; i++){
int idx=Map(i,j,k);
if (!(idx < 0))
TmpMap[idx] = k*Nx*Ny+j*Nx+i;
}
}
}
ScaLBL_CopyToDevice(dvcMap, TmpMap, sizeof(int)*Np);
ScaLBL_DeviceBarrier();
delete [] TmpMap;
// Compute the solid interaction potential and copy result to device
if (rank==0) printf("Computing solid interaction potential \n");
double *Tmp;
Tmp=new double[3*Np];
Averages->UpdateMeshValues(); // this computes the gradient of distance field (among other things)
double count_wet=0.f;
double cns,bns,cws,bws;
cns=bns=bws=cws=1.0;
for (k=1; k<Nz-1; k++){
for (j=1; j<Ny-1; j++){
for (i=1; i<Nx-1; i++){
int idx=Map(i,j,k);
int n = k*Nx*Ny+j*Nx+i;
if (!(idx < 0)){
double d = Averages->SDs(n);
double dx = Averages->SDs_x(n);
double dy = Averages->SDs_y(n);
double dz = Averages->SDs_z(n);
double value=cns*exp(-bns*fabs(d))-cws*exp(-bns*fabs(d));
Tmp[idx] = value*dx;
Tmp[idx+Np] = value*dy;
Tmp[idx+2*Np] = value*dz;
// initialize fluid phases
if (Mask->id[n] == 1) PhaseLabel[idx] = 1.0;
else if (Mask->id[n] == 2){
PhaseLabel[idx] = -1.0;
count_wet +=1.0;
}
else {
PhaseLabel[idx] = -1.0;
}
}
}
}
}
printf("wetting fraction=%f \n", count_wet/double(Np));
ScaLBL_CopyToDevice(SolidPotential, Tmp, 3*sizeof(double)*Np);
ScaLBL_DeviceBarrier();
delete [] Tmp;
// copy the neighbor list
ScaLBL_CopyToDevice(NeighborList, neighborList, neighborSize);
// initialize phi based on PhaseLabel (include solid component labels)
ScaLBL_CopyToDevice(Phi, PhaseLabel, Np*sizeof(double));
//...........................................................................
if (rank==0) printf ("Initializing distributions \n");
ScaLBL_D3Q19_Init(fq, Np);
if (rank==0) printf ("Initializing phase field \n");
ScaLBL_DFH_Init(Phi, Den, Aq, Bq, 0, ScaLBL_Comm->last_interior, Np);
//.......................................................................
// Once phase has been initialized, map solid to account for 'smeared' interface
//for (i=0; i<N; i++) Averages.SDs(i) -= (1.0);
// Make sure the id match for the two domains
for (i=0; i<N; i++) Dm->id[i] = Mask->id[i];
//.......................................................................
// Finalize setup for averaging domain
Averages->UpdateSolid();
//.......................................................................
//ScaLBL_D3Q19_Pressure(fq,Pressure,Np);
//ScaLBL_D3Q19_Momentum(fq,Velocity,Np);
//...........................................................................
// Copy the phase indicator field for the earlier timestep
ScaLBL_DeviceBarrier();
ScaLBL_CopyToHost(Averages->Phase_tplus.data(),Phi,N*sizeof(double));
//...........................................................................
// Copy the data for for the analysis timestep
//...........................................................................
// Copy the phase from the GPU -> CPU
//...........................................................................
ScaLBL_DeviceBarrier();
ScaLBL_CopyToHost(Averages->Phase.data(),Phi,N*sizeof(double));
ScaLBL_Comm->RegularLayout(Map,Pressure,Averages->Press);
ScaLBL_Comm->RegularLayout(Map,&Velocity[0],Averages->Vel_x);
ScaLBL_Comm->RegularLayout(Map,&Velocity[Np],Averages->Vel_y);
ScaLBL_Comm->RegularLayout(Map,&Velocity[2*Np],Averages->Vel_z);
//...........................................................................
if (rank==0) printf("********************************************************\n");
if (rank==0) printf("No. of timesteps: %i \n", timestepMax);
double err=1.0;
double tol=1.0e-6;
//.......create and start timer............
double starttime,stoptime,cputime;
ScaLBL_DeviceBarrier();
comm.barrier();
starttime = Utilities::MPI::time();
//.........................................
err = 1.0;
if (rank==0) printf("Begin timesteps: error tolerance is %f \n", tol);
//************ MAIN ITERATION LOOP ***************************************/
PROFILE_START("Loop");
//std::shared_ptr<Database> analysis_db;
runAnalysis analysis(db, rank_info, ScaLBL_Comm, Dm, Np, pBC, Map );
//analysis.createThreads( analysis_method, 4 );
while (timestep < timestepMax && err > tol ) {
//if ( rank==0 ) { printf("Running timestep %i (%i MB)\n",timestep+1,(int)(Utilities::getMemoryUsage()/1048576)); }
PROFILE_START("Update");
// *************ODD TIMESTEP*************
timestep++;
// Compute the Phase indicator field
// Read for Aq, Bq happens in this routine (requires communication)
ScaLBL_Comm->BiSendD3Q7AA(Aq,Bq); //READ FROM NORMAL
ScaLBL_D3Q7_AAodd_DFH(NeighborList, Aq, Bq, Den, Phi, ScaLBL_Comm->first_interior, ScaLBL_Comm->last_interior, Np);
ScaLBL_Comm->BiRecvD3Q7AA(Aq,Bq); //WRITE INTO OPPOSITE
ScaLBL_D3Q7_AAodd_DFH(NeighborList, Aq, Bq, Den, Phi, 0, ScaLBL_Comm->next, Np);
// compute the gradient
ScaLBL_D3Q19_Gradient_DFH(NeighborList, Phi, Gradient, ScaLBL_Comm->first_interior, ScaLBL_Comm->last_interior, Np);
ScaLBL_Comm->SendHalo(Phi);
ScaLBL_D3Q19_Gradient_DFH(NeighborList, Phi, Gradient, 0, ScaLBL_Comm->next, Np);
ScaLBL_Comm->RecvGrad(Phi,Gradient);
// Perform the collision operation
ScaLBL_Comm->SendD3Q19AA(fq); //READ FROM NORMAL
ScaLBL_D3Q19_AAodd_DFH(NeighborList, fq, Aq, Bq, Den, Phi, Gradient, SolidPotential, rhoA, rhoB, tauA, tauB,
alpha, beta, Fx, Fy, Fz, ScaLBL_Comm->first_interior, ScaLBL_Comm->last_interior, Np);
ScaLBL_Comm->RecvD3Q19AA(fq); //WRITE INTO OPPOSITE
// Set BCs
if (BoundaryCondition > 0){
ScaLBL_Comm->Color_BC_z(dvcMap, Phi, Den, inletA, inletB);
ScaLBL_Comm->Color_BC_Z(dvcMap, Phi, Den, outletA, outletB);
}
if (BoundaryCondition == 3){
ScaLBL_Comm->D3Q19_Pressure_BC_z(NeighborList, fq, din, timestep);
ScaLBL_Comm->D3Q19_Pressure_BC_Z(NeighborList, fq, dout, timestep);
}
if (BoundaryCondition == 4){
din = ScaLBL_Comm->D3Q19_Flux_BC_z(NeighborList, fq, flux, timestep);
ScaLBL_Comm->D3Q19_Pressure_BC_Z(NeighborList, fq, dout, timestep);
}
ScaLBL_D3Q19_AAodd_DFH(NeighborList, fq, Aq, Bq, Den, Phi, Gradient, SolidPotential, rhoA, rhoB, tauA, tauB,
alpha, beta, Fx, Fy, Fz, 0, ScaLBL_Comm->next, Np);
ScaLBL_DeviceBarrier(); comm.barrier();
// *************EVEN TIMESTEP*************
timestep++;
// Compute the Phase indicator field
ScaLBL_Comm->BiSendD3Q7AA(Aq,Bq); //READ FROM NORMAL
ScaLBL_D3Q7_AAeven_DFH(Aq, Bq, Den, Phi, ScaLBL_Comm->first_interior, ScaLBL_Comm->last_interior, Np);
ScaLBL_Comm->BiRecvD3Q7AA(Aq,Bq); //WRITE INTO OPPOSITE
ScaLBL_D3Q7_AAeven_DFH(Aq, Bq, Den, Phi, 0, ScaLBL_Comm->next, Np);
// compute the gradient
ScaLBL_D3Q19_Gradient_DFH(NeighborList, Phi, Gradient, ScaLBL_Comm->first_interior, ScaLBL_Comm->last_interior, Np);
ScaLBL_Comm->SendHalo(Phi);
ScaLBL_D3Q19_Gradient_DFH(NeighborList, Phi, Gradient, 0, ScaLBL_Comm->next, Np);
ScaLBL_Comm->RecvGrad(Phi,Gradient);
// Perform the collision operation
ScaLBL_Comm->SendD3Q19AA(fq); //READ FORM NORMAL
ScaLBL_D3Q19_AAeven_DFH(NeighborList, fq, Aq, Bq, Den, Phi, Gradient, SolidPotential, rhoA, rhoB, tauA, tauB,
alpha, beta, Fx, Fy, Fz, ScaLBL_Comm->first_interior, ScaLBL_Comm->last_interior, Np);
ScaLBL_Comm->RecvD3Q19AA(fq); //WRITE INTO OPPOSITE
// Set boundary conditions
if (BoundaryCondition > 0){
ScaLBL_Comm->Color_BC_z(dvcMap, Phi, Den, inletA, inletB);
ScaLBL_Comm->Color_BC_Z(dvcMap, Phi, Den, outletA, outletB);
}
if (BoundaryCondition == 3){
ScaLBL_Comm->D3Q19_Pressure_BC_z(NeighborList, fq, din, timestep);
ScaLBL_Comm->D3Q19_Pressure_BC_Z(NeighborList, fq, dout, timestep);
}
else if (BoundaryCondition == 4){
din = ScaLBL_Comm->D3Q19_Flux_BC_z(NeighborList, fq, flux, timestep);
ScaLBL_Comm->D3Q19_Pressure_BC_Z(NeighborList, fq, dout, timestep);
}
ScaLBL_D3Q19_AAeven_DFH(NeighborList, fq, Aq, Bq, Den, Phi, Gradient, SolidPotential, rhoA, rhoB, tauA, tauB,
alpha, beta, Fx, Fy, Fz, 0, ScaLBL_Comm->next, Np);
ScaLBL_DeviceBarrier(); comm.barrier();
//************************************************************************
comm.barrier();
PROFILE_STOP("Update");
// Run the analysis
analysis.run( timestep, db, *Averages, Phi, Pressure, Velocity, fq, Den );
}
analysis.finish();
PROFILE_STOP("Loop");
PROFILE_SAVE("lbpm_color_simulator",1);
//************************************************************************
ScaLBL_DeviceBarrier();
comm.barrier();
stoptime = Utilities::MPI::time();
if (rank==0) printf("-------------------------------------------------------------------\n");
// Compute the walltime per timestep
cputime = (stoptime - starttime)/timestep;
// Performance obtained from each node
double MLUPS = double(Np)/cputime/1000000;
if (rank==0) printf("********************************************************\n");
if (rank==0) printf("CPU time = %f \n", cputime);
if (rank==0) printf("Lattice update rate (per core)= %f MLUPS \n", MLUPS);
MLUPS *= nprocs;
if (rank==0) printf("Lattice update rate (total)= %f MLUPS \n", MLUPS);
if (rank==0) printf("********************************************************\n");
// ************************************************************************
// Copy back final phase indicator field and convert to regular layout
DoubleArray PhaseField(Nx,Ny,Nz);
ScaLBL_Comm->RegularLayout(Map,Phi,PhaseField);
sprintf(LocalRankFilename,"Phase.raw");
auto OUTFILE = fopen(LocalRankFilename,"wb");
fwrite(PhaseField.data(),8,N,OUTFILE);
fclose(OUTFILE);
DoubleArray Cx(Nx,Ny,Nz);
DoubleArray Cy(Nx,Ny,Nz);
DoubleArray Cz(Nx,Ny,Nz);
DoubleArray GradNorm(Nx,Ny,Nz);
ScaLBL_Comm->RegularLayout(Map,&Gradient[0],Cx);
ScaLBL_Comm->RegularLayout(Map,&Gradient[Np],Cy);
ScaLBL_Comm->RegularLayout(Map,&Gradient[2*Np],Cz);
for (k=1; k<Nz-1; k++){
for (j=1; j<Ny-1; j++){
for (i=1; i<Nx-1; i++){
GradNorm(i,j,k) = Cx(i,j,k)*Cx(i,j,k) + Cy(i,j,k)*Cy(i,j,k) + Cz(i,j,k)*Cz(i,j,k);
}
}
}
sprintf(LocalRankFilename,"Gradient.raw");
auto GFILE = fopen(LocalRankFilename,"wb");
fwrite(GradNorm.data(),8,N,GFILE);
fclose(GFILE);
DoubleArray Rho1(Nx,Ny,Nz);
DoubleArray Rho2(Nx,Ny,Nz);
ScaLBL_Comm->RegularLayout(Map,&Den[0],Rho1);
ScaLBL_Comm->RegularLayout(Map,&Den[Np],Rho2);
sprintf(LocalRankFilename,"Rho1.raw");
auto RFILE1 = fopen(LocalRankFilename,"wb");
fwrite(Rho1.data(),8,N,RFILE1);
fclose(RFILE1);
sprintf(LocalRankFilename,"Rho2.raw");
auto RFILE2 = fopen(LocalRankFilename,"wb");
fwrite(Rho2.data(),8,N,RFILE2);
fclose(RFILE2);
PROFILE_STOP("Main");
PROFILE_SAVE("lbpm_color_simulator",1);
// ****************************************************
comm.barrier();
} // Limit scope so variables that contain communicators will free before MPI_Finialize
Utilities::shutdown();
return check;
}
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