181 lines
5.1 KiB
C++
181 lines
5.1 KiB
C++
|
|
//*************************************************************************
|
|
// Lattice Boltzmann Simulator for Single Phase Flow in Porous Media
|
|
// James E. McCLure
|
|
//*************************************************************************
|
|
#include <stdio.h> // Initialize MPI
|
|
Utilities::startup( argc, argv );
|
|
Utilities::MPI comm( MPI_COMM_WORLD );
|
|
int rank = comm.getRank();
|
|
int nprocs = comm.getSize();
|
|
int check;
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include "common/ScaLBL.h"
|
|
#include "common/MPI.h"
|
|
|
|
using namespace std;
|
|
|
|
|
|
//***************************************************************************************
|
|
int main(int argc, char **argv)
|
|
{
|
|
//*****************************************
|
|
// ***** MPI STUFF ****************
|
|
//*****************************************
|
|
// Initialize MPI
|
|
Utilities::startup( argc, argv );
|
|
Utilities::MPI comm( MPI_COMM_WORLD );
|
|
int rank = comm.getRank();
|
|
int nprocs = comm.getSize();
|
|
int check;
|
|
{
|
|
// parallel domain size (# of sub-domains)
|
|
int nprocx,nprocy,nprocz;
|
|
int iproc,jproc,kproc;
|
|
|
|
|
|
if (rank == 0){
|
|
printf("********************************************************\n");
|
|
printf("Running Color Model: TestColor \n");
|
|
printf("********************************************************\n");
|
|
}
|
|
|
|
// BGK Model parameters
|
|
string FILENAME;
|
|
unsigned int nBlocks, nthreads;
|
|
int timestepMax, interval;
|
|
double Fx,Fy,Fz,tol;
|
|
// Domain variables
|
|
double Lx,Ly,Lz;
|
|
int nspheres;
|
|
int Nx,Ny,Nz;
|
|
int i,j,k,n;
|
|
int dim = 3;
|
|
Nx = Ny = Nz = 32;
|
|
Lx = Ly = Lz = 1.0;
|
|
//if (rank == 0) printf("dim=%d\n",dim);
|
|
int timestep = 0;
|
|
int timesteps = 100;
|
|
int centralNode = 2;
|
|
|
|
|
|
double iVol_global = 1.0/Nx/Ny/Nz/nprocx/nprocy/nprocz;
|
|
int BoundaryCondition=0;
|
|
|
|
Domain Dm(Nx,Ny,Nz,rank,nprocx,nprocy,nprocz,Lx,Ly,Lz,BoundaryCondition);
|
|
|
|
Nx += 2;
|
|
Ny += 2;
|
|
Nz += 2;
|
|
int N = Nx*Ny*Nz;
|
|
|
|
int Np=0; // number of local pore nodes
|
|
double *PhaseLabel;
|
|
PhaseLabel = new double[N];
|
|
//.......................................................................
|
|
for (k=0;k<Nz;k++){
|
|
for (j=0;j<Ny;j++){
|
|
for (i=0;i<Nx;i++){
|
|
n = k*Nx*Ny+j*Nx+i;
|
|
Dm.id[n]=1;
|
|
Np++;
|
|
// Initialize gradient ColorGrad = (1,2,3)
|
|
double value=double(3*k+2*j+i);
|
|
PhaseLabel[n]= value;
|
|
}
|
|
}
|
|
}
|
|
Dm.CommInit();
|
|
MPI_Barrier(comm);
|
|
if (rank == 0) cout << "Domain set." << endl;
|
|
if (rank==0) printf ("Create ScaLBL_Communicator \n");
|
|
|
|
//Create a second communicator based on the regular data layout
|
|
ScaLBL_Communicator ScaLBL_Comm_Regular(Dm);
|
|
ScaLBL_Communicator ScaLBL_Comm(Dm);
|
|
|
|
// LBM variables
|
|
if (rank==0) printf ("Set up the neighborlist \n");
|
|
|
|
int neighborSize=18*Np*sizeof(int);
|
|
int *neighborList;
|
|
IntArray Map(Nx,Ny,Nz);
|
|
neighborList= new int[18*Np];
|
|
|
|
ScaLBL_Comm.MemoryOptimizedLayoutAA(Map,neighborList,Dm.id,Np,1);
|
|
MPI_Barrier(comm);
|
|
|
|
//......................device distributions.................................
|
|
int dist_mem_size = Np*sizeof(double);
|
|
if (rank==0) printf ("Allocating distributions \n");
|
|
|
|
int *NeighborList;
|
|
int *dvcMap;
|
|
double *Phi;
|
|
double *ColorGrad;
|
|
//...........................................................................
|
|
ScaLBL_AllocateDeviceMemory((void **) &NeighborList, neighborSize);
|
|
ScaLBL_AllocateDeviceMemory((void **) &dvcMap, sizeof(int)*Np);
|
|
ScaLBL_AllocateDeviceMemory((void **) &Phi, sizeof(double)*Nx*Ny*Nz);
|
|
ScaLBL_AllocateDeviceMemory((void **) &ColorGrad, 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*sizeof(int)];
|
|
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;
|
|
|
|
// copy the neighbor list
|
|
ScaLBL_CopyToDevice(NeighborList, neighborList, neighborSize);
|
|
// initialize phi based on PhaseLabel (include solid component labels)
|
|
ScaLBL_CopyToDevice(Phi, PhaseLabel, N*sizeof(double));
|
|
//...........................................................................
|
|
|
|
ScaLBL_D3Q19_Gradient(dvcMap, Phi, ColorGrad, 0, Np, Np, Nx, Ny, Nz);
|
|
|
|
double *COLORGRAD;
|
|
COLORGRAD= new double [3*Np];
|
|
int SIZE=3*Np*sizeof(double);
|
|
ScaLBL_CopyToHost(&COLORGRAD[0],&ColorGrad[0],SIZE);
|
|
|
|
|
|
double CX,CY,CZ;
|
|
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;
|
|
if (Dm.id[n] > 0){
|
|
int idx = Map(i,j,k);
|
|
CX=COLORGRAD[idx];
|
|
CY=COLORGRAD[Np+idx];
|
|
CZ=COLORGRAD[2*Np+idx];
|
|
double error=sqrt((CX-1.0)*(CX-1.0)+(CY-2.0)*(CY-2.0)+ (CZ-3.0)*(CZ-3.0));
|
|
if (error > 1e-8)
|
|
printf("i,j,k=%i,%i,%i: Color gradient=%f,%f,%f \n",i,j,k,CX,CY,CZ);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
// ****************************************************
|
|
comm.barrier();
|
|
Utilities::shutdown();
|
|
// ****************************************************
|
|
return check;
|
|
}
|
|
|