refactor lbpm_permeability_simulator

This commit is contained in:
James E McClure 2018-02-21 11:31:33 -05:00
parent e891dfa25f
commit 163f9a2d5d
2 changed files with 366 additions and 531 deletions

View File

@ -1,8 +1,8 @@
# Copy files for the tests
#ADD_LBPM_EXECUTABLE( lbpm_nonnewtonian_simulator )
#ADD_LBPM_EXECUTABLE( lbpm_permeability_simulator )
#ADD_LBPM_EXECUTABLE( lbpm_nondarcy_simulator )
#ADD_LBPM_EXECUTABLE( lbpm_color_simulator )
ADD_LBPM_EXECUTABLE( lbpm_permeability_simulator )
ADD_LBPM_EXECUTABLE( lbpm_color_macro_simulator )
ADD_LBPM_EXECUTABLE( lbpm_sphere_pp )
ADD_LBPM_EXECUTABLE( lbpm_random_pp )

View File

@ -20,78 +20,6 @@
using namespace std;
//*************************************************************************
// Implementation of Steady State Single-Phase LBM for permeability measurement
//*************************************************************************
inline void PackID(int *list, int count, char *sendbuf, char *ID){
// Fill in the phase ID values from neighboring processors
// This packs up the values that need to be sent from one processor to another
int idx,n;
for (idx=0; idx<count; idx++){
n = list[idx];
sendbuf[idx] = ID[n];
}
}
//***************************************************************************************
inline void UnpackID(int *list, int count, char *recvbuf, char *ID){
// Fill in the phase ID values from neighboring processors
// This unpacks the values once they have been recieved from neighbors
int idx,n;
for (idx=0; idx<count; idx++){
n = list[idx];
ID[n] = recvbuf[idx];
}
}
//***************************************************************************************
inline void ZeroHalo(double *Data, int Nx, int Ny, int Nz)
{
int i,j,k,n;
for (k=0;k<Nz;k++){
for (j=0;j<Ny;j++){
i=0;
n = k*Nx*Ny+j*Nx+i;
Data[2*n] = 0.0;
Data[2*n+1] = 0.0;
i=Nx-1;
n = k*Nx*Ny+j*Nx+i;
Data[2*n] = 0.0;
Data[2*n+1] = 0.0;
}
}
for (k=0;k<Nz;k++){
for (i=0;i<Nx;i++){
j=0;
n = k*Nx*Ny+j*Nx+i;
Data[2*n] = 0.0;
Data[2*n+1] = 0.0;
j=Ny-1;
n = k*Nx*Ny+j*Nx+i;
Data[2*n] = 0.0;
Data[2*n+1] = 0.0;
}
}
for (j=0;j<Ny;j++){
for (i=0;i<Nx;i++){
k=0;
n = k*Nx*Ny+j*Nx+i;
Data[2*n] = 0.0;
Data[2*n+1] = 0.0;
k=Nz-1;
n = k*Nx*Ny+j*Nx+i;
Data[2*n] = 0.0;
Data[2*n+1] = 0.0;
}
}
}
//***************************************************************************************
int main(int argc, char **argv)
{
@ -101,476 +29,383 @@ int main(int argc, char **argv)
// Initialize MPI
int rank,nprocs;
MPI_Init(&argc,&argv);
MPI_Comm comm = MPI_COMM_WORLD;
MPI_Comm comm = MPI_COMM_WORLD;
MPI_Comm_rank(comm,&rank);
MPI_Comm_size(comm,&nprocs);
{
// parallel domain size (# of sub-domains)
int nprocx,nprocy,nprocz;
int iproc,jproc,kproc;
//*****************************************
// MPI ranks for all 18 neighbors
//**********************************
int rank_x,rank_y,rank_z,rank_X,rank_Y,rank_Z;
int rank_xy,rank_XY,rank_xY,rank_Xy;
int rank_xz,rank_XZ,rank_xZ,rank_Xz;
int rank_yz,rank_YZ,rank_yZ,rank_Yz;
//**********************************
MPI_Request req1[18],req2[18];
MPI_Status stat1[18],stat2[18];
// parallel domain size (# of sub-domains)
int nprocx,nprocy,nprocz;
int iproc,jproc,kproc;
if (rank == 0){
printf("********************************************************\n");
printf("Running Single Phase Permeability Calculation \n");
printf("********************************************************\n");
}
// Variables that specify the computational domain
string FILENAME;
int Nx,Ny,Nz; // local sub-domain size
int nspheres; // number of spheres in the packing
double Lx,Ly,Lz; // Domain length
double D = 1.0; // reference length for non-dimensionalization
// Color Model parameters
int timestepMax, interval;
double tau,Fx,Fy,Fz,tol,err;
double din,dout;
bool pBC,Restart;
int i,j,k,n;
int RESTART_INTERVAL=20000;
if (rank==0){
//.............................................................
// READ SIMULATION PARMAETERS FROM INPUT FILE
//.............................................................
ifstream input("Permeability.in");
// Line 1: model parameters (tau, alpha, beta, das, dbs)
input >> tau; // Viscosity parameter
// Line 2: External force components (Fx,Fy, Fz)
input >> Fx;
input >> Fy;
input >> Fz;
// Line 3: Pressure Boundary conditions
input >> Restart;
input >> pBC;
input >> din;
input >> dout;
// Line 4: time-stepping criteria
input >> timestepMax; // max no. of timesteps
input >> interval; // restart interval
input >> tol; // error tolerance
//.............................................................
//.......................................................................
// Reading the domain information file
//.......................................................................
ifstream domain("Domain.in");
domain >> nprocx;
domain >> nprocy;
domain >> nprocz;
domain >> Nx;
domain >> Ny;
domain >> Nz;
domain >> nspheres;
domain >> Lx;
domain >> Ly;
domain >> Lz;
//.......................................................................
}
// **************************************************************
// Broadcast simulation parameters from rank 0 to all other procs
MPI_Barrier(comm);
//.................................................
MPI_Bcast(&tau,1,MPI_DOUBLE,0,comm);
//MPI_Bcast(&pBC,1,MPI_LOGICAL,0,comm);
// MPI_Bcast(&Restart,1,MPI_LOGICAL,0,comm);
MPI_Bcast(&din,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&dout,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Fx,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Fy,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Fz,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&timestepMax,1,MPI_INT,0,comm);
MPI_Bcast(&interval,1,MPI_INT,0,comm);
MPI_Bcast(&tol,1,MPI_DOUBLE,0,comm);
// Computational domain
MPI_Bcast(&Nx,1,MPI_INT,0,comm);
MPI_Bcast(&Ny,1,MPI_INT,0,comm);
MPI_Bcast(&Nz,1,MPI_INT,0,comm);
MPI_Bcast(&nprocx,1,MPI_INT,0,comm);
MPI_Bcast(&nprocy,1,MPI_INT,0,comm);
MPI_Bcast(&nprocz,1,MPI_INT,0,comm);
MPI_Bcast(&nspheres,1,MPI_INT,0,comm);
MPI_Bcast(&Lx,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Ly,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Lz,1,MPI_DOUBLE,0,comm);
//.................................................
MPI_Barrier(comm);
RESTART_INTERVAL=interval;
// **************************************************************
// **************************************************************
double rlxA = 1.f/tau;
double rlxB = 8.f*(2.f-rlxA)/(8.f-rlxA);
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 = %f \n", tau);
printf("Force(x) = %.5g \n", Fx);
printf("Force(y) = %.5g \n", Fy);
printf("Force(z) = %.5g \n", Fz);
printf("Sub-domain size = %i x %i x %i\n",Nx,Ny,Nz);
printf("Process grid = %i x %i x %i\n",nprocx,nprocy,nprocz);
printf("********************************************************\n");
}
double viscosity=(tau-0.5)/3.0;
// Initialized domain and averaging framework for Two-Phase Flow
int BC=pBC;
Domain Dm(Nx,Ny,Nz,rank,nprocx,nprocy,nprocz,Lx,Ly,Lz,BC);
TwoPhase Averages(Dm);
InitializeRanks( rank, nprocx, nprocy, nprocz, iproc, jproc, kproc,
rank_x, rank_y, rank_z, rank_X, rank_Y, rank_Z,
rank_xy, rank_XY, rank_xY, rank_Xy, rank_xz, rank_XZ, rank_xZ, rank_Xz,
rank_yz, rank_YZ, rank_yZ, rank_Yz );
MPI_Barrier(comm);
Nx += 2; Ny += 2; Nz += 2;
int N = Nx*Ny*Nz;
int dist_mem_size = N*sizeof(double);
//.......................................................................
if (rank == 0) printf("Read input media... \n");
//.......................................................................
//.......................................................................
// Filenames used
char LocalRankString[8];
char LocalRankFilename[40];
char LocalRestartFile[40];
char tmpstr[10];
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;
char *id;
id = new char[N];
int sum = 0;
double sum_local;
double iVol_global = 1.0/(1.0*(Nx-2)*(Ny-2)*(Nz-2)*nprocs);
if (pBC) iVol_global = 1.0/(1.0*(Nx-2)*nprocx*(Ny-2)*nprocy*((Nz-2)*nprocz-6));
double porosity, pore_vol;
//...........................................................................
if (rank == 0) cout << "Reading in domain from signed distance function..." << endl;
//.......................................................................
sprintf(LocalRankString,"%05d",rank);
// sprintf(LocalRankFilename,"%s%s","ID.",LocalRankString);
// WriteLocalSolidID(LocalRankFilename, id, N);
sprintf(LocalRankFilename,"%s%s","SignDist.",LocalRankString);
ReadBinaryFile(LocalRankFilename, Averages.SDs.data(), N);
MPI_Barrier(comm);
if (rank == 0) cout << "Domain set." << endl;
//.......................................................................
// Assign the phase ID field based on the signed distance
//.......................................................................
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;
id[n] = 0;
}
if (rank == 0){
printf("********************************************************\n");
printf("Running Single Phase Permeability Calculation \n");
printf("********************************************************\n");
}
}
sum=0;
pore_vol = 0.0;
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 (Averages.SDs(n) > 0.0){
id[n] = 2;
}
// compute the porosity (actual interface location used)
if (Averages.SDs(n) > 0.0){
sum++;
}
}
// Variables that specify the computational domain
string FILENAME;
int Nx,Ny,Nz; // local sub-domain size
int nspheres; // number of spheres in the packing
double Lx,Ly,Lz; // Domain length
double D = 1.0; // reference length for non-dimensionalization
// Color Model parameters
int timestepMax, interval;
double tau,Fx,Fy,Fz,tol,err;
double din,dout;
bool pBC,Restart;
int i,j,k,n;
int RESTART_INTERVAL=20000;
if (rank==0){
//.............................................................
// READ SIMULATION PARMAETERS FROM INPUT FILE
//.............................................................
ifstream input("Permeability.in");
// Line 1: model parameters (tau, alpha, beta, das, dbs)
input >> tau; // Viscosity parameter
// Line 2: External force components (Fx,Fy, Fz)
input >> Fx;
input >> Fy;
input >> Fz;
// Line 3: Pressure Boundary conditions
input >> Restart;
input >> pBC;
input >> din;
input >> dout;
// Line 4: time-stepping criteria
input >> timestepMax; // max no. of timesteps
input >> interval; // restart interval
input >> tol; // error tolerance
//.............................................................
//.......................................................................
// Reading the domain information file
//.......................................................................
ifstream domain("Domain.in");
domain >> nprocx;
domain >> nprocy;
domain >> nprocz;
domain >> Nx;
domain >> Ny;
domain >> Nz;
domain >> nspheres;
domain >> Lx;
domain >> Ly;
domain >> Lz;
//.......................................................................
}
}
// Set up kstart, kfinish so that the reservoirs are excluded from averaging
int kstart,kfinish;
kstart = 1;
kfinish = Nz-1;
if (pBC && kproc==0) kstart = 4;
if (pBC && kproc==nprocz-1) kfinish = Nz-4;
// Compute the pore volume
sum_local = 0.0;
for ( k=kstart;k<kfinish;k++){
for ( j=1;j<Ny-1;j++){
for ( i=1;i<Nx-1;i++){
n = k*Nx*Ny+j*Nx+i;
if (id[n] > 0){
sum_local += 1.0;
}
}
}
}
MPI_Allreduce(&sum_local,&pore_vol,1,MPI_DOUBLE,MPI_SUM,comm);
// MPI_Allreduce(&sum_local,&porosity,1,MPI_DOUBLE,MPI_SUM,comm);
porosity = pore_vol*iVol_global;
if (rank==0) printf("Media porosity = %f \n",porosity);
//.........................................................
// If pressure boundary conditions are applied remove solid
if (pBC && kproc == 0){
for (k=0; k<3; k++){
for (j=0;j<Ny;j++){
for (i=0;i<Nx;i++){
n = k*Nx*Ny+j*Nx+i;
id[n] = 1;
Averages.SDs(n) = max(Averages.SDs(n),1.0*(2.5-k));
}
}
}
}
if (pBC && kproc == nprocz-1){
for (k=Nz-3; k<Nz; k++){
for (j=0;j<Ny;j++){
for (i=0;i<Nx;i++){
n = k*Nx*Ny+j*Nx+i;
id[n] = 2;
Averages.SDs(n) = max(Averages.SDs(n),1.0*(k-Nz+2.5));
}
}
}
}
//.........................................................
// 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<Dm.Nx*Dm.Ny*Dm.Nz; i++) Dm.id[i] = id[i];
Dm.CommInit(comm);
//...........................................................................
if (rank==0) printf ("Create ScaLBL_Communicator \n");
// Create a communicator for the device
ScaLBL_Communicator ScaLBL_Comm(Dm);
//...........device phase ID.................................................
if (rank==0) printf ("Copying phase ID to device \n");
char *ID;
ScaLBL_AllocateDeviceMemory((void **) &ID, N); // Allocate device memory
// Copy to the device
ScaLBL_CopyToDevice(ID, id, N);
//...........................................................................
//...........................................................................
// MAIN VARIABLES ALLOCATED HERE
//...........................................................................
// LBM variables
if (rank==0) printf ("Allocating distributions \n");
//......................device distributions.................................
double *f_even,*f_odd;
//...........................................................................
ScaLBL_AllocateDeviceMemory((void **) &f_even, 10*dist_mem_size); // Allocate device memory
ScaLBL_AllocateDeviceMemory((void **) &f_odd, 9*dist_mem_size); // Allocate device memory
//...........................................................................
double *Velocity, *Pressure, *dvcSignDist;
//...........................................................................
ScaLBL_AllocateDeviceMemory((void **) &Pressure, dist_mem_size);
ScaLBL_AllocateDeviceMemory((void **) &dvcSignDist, dist_mem_size);
ScaLBL_AllocateDeviceMemory((void **) &Velocity, 3*dist_mem_size);
//...........................................................................
// Copy signed distance for device initialization
ScaLBL_CopyToDevice(dvcSignDist, Averages.SDs.data(), dist_mem_size);
//...........................................................................
int logcount = 0; // number of surface write-outs
//...........................................................................
// MAIN VARIABLES INITIALIZED HERE
//...........................................................................
//...........................................................................
if (rank==0) printf("Setting the distributions, size = %i\n", N);
//...........................................................................
ScaLBL_D3Q19_Init(ID, f_even, f_odd, Nx, Ny, Nz);
//......................................................................
//.......................................................................
// Finalize setup for averaging domain
//Averages.SetupCubes(Dm);
Averages.UpdateSolid();
// Initialize two phase flow variables (all wetting phase)
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;
Averages.Phase(i,j,k) = -1.0;
Averages.SDn(i,j,k) = Averages.Phase(i,j,k);
Averages.Phase_tplus(i,j,k) = Averages.SDn(i,j,k);
Averages.Phase_tminus(i,j,k) = Averages.SDn(i,j,k);
Averages.DelPhi(i,j,k) = 0.0;
Averages.Press(i,j,k) = 0.0;
Averages.Vel_x(i,j,k) = 0.0;
Averages.Vel_y(i,j,k) = 0.0;
Averages.Vel_z(i,j,k) = 0.0;
}
}
}
//.......................................................................
if (rank==0 && pBC){
printf("Setting inlet pressure = %f \n", din);
printf("Setting outlet pressure = %f \n", dout);
}
if (pBC && kproc == 0) {
ScaLBL_D3Q19_Pressure_BC_z(f_even,f_odd,din,Nx,Ny,Nz);
}
if (pBC && kproc == nprocz-1){
ScaLBL_D3Q19_Pressure_BC_Z(f_even,f_odd,dout,Nx,Ny,Nz,Nx*Ny*(Nz-2));
}
int timestep = 0;
if (rank==0) printf("********************************************************\n");
if (rank==0) printf("No. of timesteps: %i \n", timestepMax);
//.......create and start timer............
double starttime,stoptime,cputime;
MPI_Barrier(comm);
starttime = MPI_Wtime();
//.........................................
double D32,Fo,Re,velocity,err1D,mag_force,vel_prev;
err = vel_prev = 1.0;
if (rank==0) printf("Begin timesteps: error tolerance is %f \n", tol);
//************ MAIN ITERATION LOOP ***************************************/
while (timestep < timestepMax && err > tol ){
//*************************************************************************
// Fused Color Gradient and Collision
//*************************************************************************
ScaLBL_D3Q19_MRT( ID,f_even,f_odd,rlxA,rlxB,Fx,Fy,Fz,Nx,Ny,Nz);
//*************************************************************************
//*************************************************************************
// Pack and send the D3Q19 distributions
ScaLBL_Comm.SendD3Q19(f_even, f_odd);
//*************************************************************************
// Swap the distributions for momentum transport
//*************************************************************************
ScaLBL_D3Q19_Swap(ID, f_even, f_odd, Nx, Ny, Nz);
//*************************************************************************
// Wait for communications to complete and unpack the distributions
ScaLBL_Comm.RecvD3Q19(f_even, f_odd);
//*************************************************************************
if (pBC && kproc == 0) {
ScaLBL_D3Q19_Pressure_BC_z(f_even,f_odd,din,Nx,Ny,Nz);
}
if (pBC && kproc == nprocz-1){
ScaLBL_D3Q19_Pressure_BC_Z(f_even,f_odd,dout,Nx,Ny,Nz,Nx*Ny*(Nz-2));
}
//...................................................................................
ScaLBL_DeviceBarrier();
// **************************************************************
// Broadcast simulation parameters from rank 0 to all other procs
MPI_Barrier(comm);
//.................................................
MPI_Bcast(&tau,1,MPI_DOUBLE,0,comm);
//MPI_Bcast(&pBC,1,MPI_LOGICAL,0,comm);
// MPI_Bcast(&Restart,1,MPI_LOGICAL,0,comm);
MPI_Bcast(&din,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&dout,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Fx,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Fy,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Fz,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&timestepMax,1,MPI_INT,0,comm);
MPI_Bcast(&interval,1,MPI_INT,0,comm);
MPI_Bcast(&tol,1,MPI_DOUBLE,0,comm);
// Computational domain
MPI_Bcast(&Nx,1,MPI_INT,0,comm);
MPI_Bcast(&Ny,1,MPI_INT,0,comm);
MPI_Bcast(&Nz,1,MPI_INT,0,comm);
MPI_Bcast(&nprocx,1,MPI_INT,0,comm);
MPI_Bcast(&nprocy,1,MPI_INT,0,comm);
MPI_Bcast(&nprocz,1,MPI_INT,0,comm);
MPI_Bcast(&nspheres,1,MPI_INT,0,comm);
MPI_Bcast(&Lx,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Ly,1,MPI_DOUBLE,0,comm);
MPI_Bcast(&Lz,1,MPI_DOUBLE,0,comm);
//.................................................
MPI_Barrier(comm);
// Timestep completed!
timestep++;
RESTART_INTERVAL=interval;
// **************************************************************
// **************************************************************
double rlxA = 1.f/tau;
double rlxB = 8.f*(2.f-rlxA)/(8.f-rlxA);
if (timestep%500 == 0){
//...........................................................................
// Copy the data for for the analysis timestep
//...........................................................................
// Copy the phase from the GPU -> CPU
//...........................................................................
ScaLBL_DeviceBarrier();
ScaLBL_D3Q19_Pressure(ID,f_even,f_odd,Pressure,Nx,Ny,Nz);
ScaLBL_D3Q19_Velocity(ID,f_even,f_odd,Velocity,Nx,Ny,Nz);
ScaLBL_CopyToHost(Averages.Press.data(),Pressure,N*sizeof(double));
ScaLBL_CopyToHost(Averages.Vel_x.data(),&Velocity[0],N*sizeof(double));
ScaLBL_CopyToHost(Averages.Vel_y.data(),&Velocity[N],N*sizeof(double));
ScaLBL_CopyToHost(Averages.Vel_z.data(),&Velocity[2*N],N*sizeof(double));
// Way more work than necessary -- this is just to get the solid interfacial area!!
Averages.Initialize();
Averages.UpdateMeshValues();
Averages.ComputeLocal();
Averages.Reduce();
double vawx = -Averages.vaw_global(0);
double vawy = -Averages.vaw_global(1);
double vawz = -Averages.vaw_global(2);
if (rank==0){
// ************* DIMENSIONLESS FORCHEIMER EQUATION *************************
// Dye, A.L., McClure, J.E., Gray, W.G. and C.T. Miller
// Description of Non-Darcy Flows in Porous Medium Systems
// Physical Review E 87 (3), 033012
// Fo := density*D32^3*(density*force) / (viscosity^2)
// Re := density*D32*velocity / viscosity
// Fo = a*Re + b*Re^2
// *************************************************************************
//viscosity = (tau-0.5)*0.333333333333333333;
D32 = 6.0*(Dm.Volume-Averages.vol_w_global)/Averages.As_global;
printf("Sauter Mean Diameter = %f \n",D32);
mag_force = sqrt(Fx*Fx+Fy*Fy+Fz*Fz);
Fo = D32*D32*D32*mag_force/viscosity/viscosity;
// .... 1-D flow should be aligned with force ...
velocity = vawx*Fx/mag_force + vawy*Fy/mag_force + vawz*Fz/mag_force;
err1D = fabs(velocity-sqrt(vawx*vawx+vawy*vawy+vawz*vawz))/velocity;
//.......... Computation of the Reynolds number Re ..............
Re = D32*velocity/viscosity;
printf("Force: %.5g,%.5g,%.5g \n",Fx,Fy,Fz);
printf("Velocity: %.5g,%.5g,%.5g \n",vawx,vawy,vawz);
printf("Relative error for 1D representation: %.5g \n",err1D);
printf("Dimensionless force: %5g \n", Fo);
printf("Reynolds number: %.5g \n", Re);
printf("Dimensionless Permeability (k/D^2): %.5g \n", Re/Fo);
}
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!");
}
}
//************************************************************************/
ScaLBL_DeviceBarrier();
MPI_Barrier(comm);
stoptime = MPI_Wtime();
if (rank==0) printf("-------------------------------------------------------------------\n");
// Compute the walltime per timestep
cputime = (stoptime - starttime)/timestep;
// Performance obtained from each node
double MLUPS = double(Nx*Ny*Nz)/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");
NULL_USE(RESTART_INTERVAL);
if (rank==0){
printf("********************************************************\n");
printf("tau = %f \n", tau);
printf("Force(x) = %.5g \n", Fx);
printf("Force(y) = %.5g \n", Fy);
printf("Force(z) = %.5g \n", Fz);
printf("Sub-domain size = %i x %i x %i\n",Nx,Ny,Nz);
printf("Process grid = %i x %i x %i\n",nprocx,nprocy,nprocz);
printf("********************************************************\n");
}
double viscosity=(tau-0.5)/3.0;
// Initialized domain and averaging framework for Two-Phase Flow
int BC=pBC;
Domain Dm(Nx,Ny,Nz,rank,nprocx,nprocy,nprocz,Lx,Ly,Lz,BC);
TwoPhase Averages(Dm);
MPI_Barrier(comm);
Nx += 2; Ny += 2; Nz += 2;
int N = Nx*Ny*Nz;
int dist_mem_size = N*sizeof(double);
//.......................................................................
if (rank == 0) printf("Read input media... \n");
//.......................................................................
//.......................................................................
// Filenames used
char LocalRankString[8];
char LocalRankFilename[40];
char LocalRestartFile[40];
char tmpstr[10];
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;
char *id;
id = new char[N];
int sum = 0;
double sum_local;
double iVol_global = 1.0/(1.0*(Nx-2)*(Ny-2)*(Nz-2)*nprocs);
if (pBC) iVol_global = 1.0/(1.0*(Nx-2)*nprocx*(Ny-2)*nprocy*((Nz-2)*nprocz-6));
double porosity, pore_vol;
//...........................................................................
if (rank == 0) cout << "Reading in domain from signed distance function..." << endl;
//.......................................................................
sprintf(LocalRankString,"%05d",rank);
// sprintf(LocalRankFilename,"%s%s","ID.",LocalRankString);
// WriteLocalSolidID(LocalRankFilename, id, N);
sprintf(LocalRankFilename,"%s%s","SignDist.",LocalRankString);
ReadBinaryFile(LocalRankFilename, Averages.SDs.data(), N);
MPI_Barrier(comm);
if (rank == 0) cout << "Domain set." << endl;
//.......................................................................
// Assign the phase ID field based on the signed distance
//.......................................................................
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] = 0;
}
}
}
//.......................................................................
// Compute the media porosity
//.......................................................................
double sum,porosity;
double sum_local=0.0; pore_vol = 0.0;
int Np=0; // number of local pore nodes
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 (Averages.SDs(n) > 0.0){
Dm.id[n] = 2;
}
// compute the porosity (actual interface location used)
if (Averages.SDs(n) > 0.0){
sum_local+=1.0;
Np++;
}
}
}
}
MPI_Barrier(comm);
MPI_Allreduce(&sum_local,&sum,1,MPI_DOUBLE,MPI_SUM,comm);
porosity = sum*iVol_global;
if (rank==0) printf("Media porosity = %f \n",porosity);
MPI_Barrier(comm);
if (rank == 0) cout << "Domain set." << endl;
if (rank==0) printf ("Create ScaLBL_Communicator \n");
//...........................................................................
if (rank==0) printf ("Create ScaLBL_Communicator \n");
Dm.CommInit(comm);
// Create a communicator for the device
ScaLBL_Communicator ScaLBL_Comm(Dm);
// LBM variables
if (rank==0) printf ("Allocating distributions \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);
// ScaLBL_Comm.MemoryDenseLayoutFull(Map,neighborList,Dm.id,Np); // this was how I tested for correctness
MPI_Barrier(comm);
//......................device distributions.................................
int dist_mem_size = Np*sizeof(double);
int *NeighborList;
// double *f_even,*f_odd;
double * dist;
double * Velocity;
//...........................................................................
ScaLBL_AllocateDeviceMemory((void **) &dist, 19*dist_mem_size);
ScaLBL_AllocateDeviceMemory((void **) &NeighborList, neighborSize);
ScaLBL_AllocateDeviceMemory((void **) &Velocity, 3*sizeof(double)*Np);
ScaLBL_AllocateDeviceMemory((void **) &Pressure, 3*sizeof(double)*Np);
ScaLBL_CopyToDevice(NeighborList, neighborList, neighborSize);
//...........................................................................
//...........................................................................
if (rank==0) printf("Setting the distributions, size = %i\n", N);
//...........................................................................
// Finalize setup for averaging domain
//Averages.SetupCubes(Dm);
Averages.UpdateSolid();
// Initialize two phase flow variables (all wetting phase)
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;
Averages.Phase(i,j,k) = -1.0;
Averages.SDn(i,j,k) = Averages.Phase(i,j,k);
Averages.Phase_tplus(i,j,k) = Averages.SDn(i,j,k);
Averages.Phase_tminus(i,j,k) = Averages.SDn(i,j,k);
Averages.DelPhi(i,j,k) = 0.0;
Averages.Press(i,j,k) = 0.0;
Averages.Vel_x(i,j,k) = 0.0;
Averages.Vel_y(i,j,k) = 0.0;
Averages.Vel_z(i,j,k) = 0.0;
}
}
}
//.......................................................................
ScaLBL_D3Q19_Init(dist, Np);
int timestep = 0;
if (rank==0) printf("********************************************************\n");
if (rank==0) printf("No. of timesteps: %i \n", timestepMax);
//.......create and start timer............
double starttime,stoptime,cputime;
MPI_Barrier(comm);
starttime = MPI_Wtime();
//.........................................
double D32,Fo,Re,velocity,err1D,mag_force,vel_prev;
err = vel_prev = 1.0;
if (rank==0) printf("Begin timesteps: error tolerance is %f \n", tol);
//************ MAIN ITERATION LOOP ***************************************/
while (timestep < timestepMax && err > tol ){
timestep++;
ScaLBL_Comm.SendD3Q19AA(dist); //READ FROM NORMAL
ScaLBL_D3Q19_AAodd_MRT(NeighborList, dist, ScaLBL_Comm.next, Np, Np, rlx_setA, rlx_setB, Fx, Fy, Fz);
ScaLBL_Comm.RecvD3Q19AA(dist); //WRITE INTO OPPOSITE
ScaLBL_D3Q19_AAodd_MRT(NeighborList, dist, 0, ScaLBL_Comm.next, Np, rlx_setA, rlx_setB, Fx, Fy, Fz);
ScaLBL_DeviceBarrier(); MPI_Barrier(comm);
timestep++;
ScaLBL_Comm.SendD3Q19AA(dist); //READ FORM NORMAL
ScaLBL_D3Q19_AAeven_MRT(dist, ScaLBL_Comm.next, Np, Np, rlx_setA, rlx_setB, Fx, Fy, Fz);
ScaLBL_Comm.RecvD3Q19AA(dist); //WRITE INTO OPPOSITE
ScaLBL_D3Q19_AAeven_MRT(dist, 0, ScaLBL_Comm.next, Np, rlx_setA, rlx_setB, Fx, Fy, Fz);
ScaLBL_DeviceBarrier(); MPI_Barrier(comm);
//************************************************************************/
if (timestep%500 == 0){
//...........................................................................
// Copy the data for for the analysis timestep
//...........................................................................
// Copy the phase from the GPU -> CPU
//...........................................................................
ScaLBL_DeviceBarrier();
ScaLBL_D3Q19_Pressure(fq,Pressure,Np);
ScaLBL_D3Q19_Momentum(fq,Velocity,Np);
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);
// Way more work than necessary -- this is just to get the solid interfacial area!!
Averages.Initialize();
Averages.UpdateMeshValues();
Averages.ComputeLocal();
Averages.Reduce();
double vawx = -Averages.vaw_global(0);
double vawy = -Averages.vaw_global(1);
double vawz = -Averages.vaw_global(2);
if (rank==0){
// ************* DIMENSIONLESS FORCHEIMER EQUATION *************************
// Dye, A.L., McClure, J.E., Gray, W.G. and C.T. Miller
// Description of Non-Darcy Flows in Porous Medium Systems
// Physical Review E 87 (3), 033012
// Fo := density*D32^3*(density*force) / (viscosity^2)
// Re := density*D32*velocity / viscosity
// Fo = a*Re + b*Re^2
// *************************************************************************
//viscosity = (tau-0.5)*0.333333333333333333;
D32 = 6.0*(Dm.Volume-Averages.vol_w_global)/Averages.As_global;
printf("Sauter Mean Diameter = %f \n",D32);
mag_force = sqrt(Fx*Fx+Fy*Fy+Fz*Fz);
Fo = D32*D32*D32*mag_force/viscosity/viscosity;
// .... 1-D flow should be aligned with force ...
velocity = vawx*Fx/mag_force + vawy*Fy/mag_force + vawz*Fz/mag_force;
err1D = fabs(velocity-sqrt(vawx*vawx+vawy*vawy+vawz*vawz))/velocity;
//.......... Computation of the Reynolds number Re ..............
Re = D32*velocity/viscosity;
printf("Force: %.5g,%.5g,%.5g \n",Fx,Fy,Fz);
printf("Velocity: %.5g,%.5g,%.5g \n",vawx,vawy,vawz);
printf("Relative error for 1D representation: %.5g \n",err1D);
printf("Dimensionless force: %5g \n", Fo);
printf("Reynolds number: %.5g \n", Re);
printf("Dimensionless Permeability (k/D^2): %.5g \n", Re/Fo);
}
}
}
//************************************************************************/
ScaLBL_DeviceBarrier();
MPI_Barrier(comm);
stoptime = MPI_Wtime();
if (rank==0) printf("-------------------------------------------------------------------\n");
// Compute the walltime per timestep
cputime = (stoptime - starttime)/timestep;
// Performance obtained from each node
double MLUPS = double(Nx*Ny*Nz)/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");
NULL_USE(RESTART_INTERVAL);
}
// ****************************************************
MPI_Barrier(comm);