Updated TestCommD3Q19 to ensure clean MPI exit
This commit is contained in:
James E McClure
parent
a043dd82c2
commit
b03fa6dc16
@ -158,232 +158,233 @@ int main(int argc, char **argv)
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// Initialize MPI
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int rank,nprocs;
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MPI_Init(&argc,&argv);
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MPI_Comm comm = MPI_COMM_WORLD;
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MPI_Comm comm = MPI_COMM_WORLD;
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MPI_Comm_rank(comm,&rank);
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MPI_Comm_size(comm,&nprocs);
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// parallel domain size (# of sub-domains)
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int nprocx,nprocy,nprocz;
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int iproc,jproc,kproc;
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//*****************************************
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// MPI ranks for all 18 neighbors
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//**********************************
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int rank_x,rank_y,rank_z,rank_X,rank_Y,rank_Z;
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int rank_xy,rank_XY,rank_xY,rank_Xy;
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int rank_xz,rank_XZ,rank_xZ,rank_Xz;
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int rank_yz,rank_YZ,rank_yZ,rank_Yz;
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//**********************************
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MPI_Request req1[18],req2[18];
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MPI_Status stat1[18],stat2[18];
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{
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// parallel domain size (# of sub-domains)
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int nprocx,nprocy,nprocz;
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int iproc,jproc,kproc;
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//*****************************************
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// MPI ranks for all 18 neighbors
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//**********************************
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int rank_x,rank_y,rank_z,rank_X,rank_Y,rank_Z;
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int rank_xy,rank_XY,rank_xY,rank_Xy;
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int rank_xz,rank_XZ,rank_xZ,rank_Xz;
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int rank_yz,rank_YZ,rank_yZ,rank_Yz;
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//**********************************
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MPI_Request req1[18],req2[18];
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MPI_Status stat1[18],stat2[18];
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if (rank == 0){
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printf("********************************************************\n");
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printf("Running Unit Test for D3Q19 MPI Communication \n");
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printf("********************************************************\n");
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}
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if (rank == 0){
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printf("********************************************************\n");
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printf("Running Unit Test for D3Q19 MPI Communication \n");
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printf("********************************************************\n");
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}
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// BGK Model parameters
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string FILENAME;
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unsigned int nBlocks, nthreads;
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int timestepMax, interval;
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double tau,Fx,Fy,Fz,tol;
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// Domain variables
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double Lx,Ly,Lz;
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int nspheres;
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int Nx,Ny,Nz;
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int i,j,k,n;
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// BGK Model parameters
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string FILENAME;
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unsigned int nBlocks, nthreads;
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int timestepMax, interval;
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double tau,Fx,Fy,Fz,tol;
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// Domain variables
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double Lx,Ly,Lz;
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int nspheres;
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int Nx,Ny,Nz;
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int i,j,k,n;
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if (rank==0){
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//.......................................................................
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// Reading the domain information file
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//.......................................................................
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ifstream domain("Domain.in");
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if (domain.good()){
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domain >> nprocx;
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domain >> nprocy;
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domain >> nprocz;
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domain >> Nx;
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domain >> Ny;
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domain >> Nz;
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domain >> nspheres;
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domain >> Lx;
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domain >> Ly;
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domain >> Lz;
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}
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else if (nprocs==1){
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nprocx=nprocy=nprocz=1;
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Nx=Ny=Nz=50;
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nspheres=0;
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Lx=Ly=Lz=1;
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}
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else if (nprocs==2){
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nprocx=nprocy=1;
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nprocz=2;
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Nx=Ny=Nz=50;
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nspheres=0;
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Lx=Ly=Lz=1;
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}
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else if (nprocs==4){
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nprocx=nprocy=2;
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nprocz=1;
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Nx=Ny=Nz=50;
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nspheres=0;
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Lx=Ly=Lz=1;
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}
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else if (nprocs==8){
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nprocx=nprocy=nprocz=2;
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Nx=Ny=Nz=50;
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nspheres=0;
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Lx=Ly=Lz=1;
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}
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//.......................................................................
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}
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// **************************************************************
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// Broadcast simulation parameters from rank 0 to all other procs
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MPI_Barrier(comm);
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//.................................................
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MPI_Bcast(&Nx,1,MPI_INT,0,comm);
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MPI_Bcast(&Ny,1,MPI_INT,0,comm);
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MPI_Bcast(&Nz,1,MPI_INT,0,comm);
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MPI_Bcast(&nBlocks,1,MPI_INT,0,comm);
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MPI_Bcast(&nthreads,1,MPI_INT,0,comm);
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MPI_Bcast(×tepMax,1,MPI_INT,0,comm);
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MPI_Bcast(&Nx,1,MPI_INT,0,comm);
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MPI_Bcast(&Ny,1,MPI_INT,0,comm);
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MPI_Bcast(&Nz,1,MPI_INT,0,comm);
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MPI_Bcast(&nprocx,1,MPI_INT,0,comm);
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MPI_Bcast(&nprocy,1,MPI_INT,0,comm);
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MPI_Bcast(&nprocz,1,MPI_INT,0,comm);
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MPI_Bcast(&nspheres,1,MPI_INT,0,comm);
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MPI_Bcast(&Lx,1,MPI_DOUBLE,0,comm);
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MPI_Bcast(&Ly,1,MPI_DOUBLE,0,comm);
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MPI_Bcast(&Lz,1,MPI_DOUBLE,0,comm);
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//.................................................
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MPI_Barrier(comm);
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// **************************************************************
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// **************************************************************
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if (nprocs != nprocx*nprocy*nprocz){
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printf("nprocx = %i \n",nprocx);
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printf("nprocy = %i \n",nprocy);
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printf("nprocz = %i \n",nprocz);
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INSIST(nprocs == nprocx*nprocy*nprocz,"Fatal error in processor count!");
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}
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if (rank==0){
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printf("********************************************************\n");
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printf("Sub-domain size = %i x %i x %i\n",Nz,Nz,Nz);
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printf("Parallel domain size = %i x %i x %i\n",nprocx,nprocy,nprocz);
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printf("********************************************************\n");
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}
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MPI_Barrier(comm);
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kproc = rank/(nprocx*nprocy);
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jproc = (rank-nprocx*nprocy*kproc)/nprocx;
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iproc = rank-nprocx*nprocy*kproc-nprocz*jproc;
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double iVol_global = 1.0/Nx/Ny/Nz/nprocx/nprocy/nprocz;
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int BoundaryCondition=0;
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Domain Dm(Nx,Ny,Nz,rank,nprocx,nprocy,nprocz,Lx,Ly,Lz,BoundaryCondition);
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InitializeRanks( rank, nprocx, nprocy, nprocz, iproc, jproc, kproc,
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rank_x, rank_y, rank_z, rank_X, rank_Y, rank_Z,
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rank_xy, rank_XY, rank_xY, rank_Xy, rank_xz, rank_XZ, rank_xZ, rank_Xz,
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rank_yz, rank_YZ, rank_yZ, rank_Yz );
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Nx += 2;
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Ny += 2;
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Nz += 2;
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int N = Nx*Ny*Nz;
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int dist_mem_size = N*sizeof(double);
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if (rank==0){
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//.......................................................................
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// Reading the domain information file
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// Assign the phase ID field
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//.......................................................................
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ifstream domain("Domain.in");
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if (domain.good()){
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domain >> nprocx;
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domain >> nprocy;
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domain >> nprocz;
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domain >> Nx;
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domain >> Ny;
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domain >> Nz;
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domain >> nspheres;
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domain >> Lx;
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domain >> Ly;
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domain >> Lz;
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}
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else if (nprocs==1){
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nprocx=nprocy=nprocz=1;
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Nx=Ny=Nz=50;
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nspheres=0;
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Lx=Ly=Lz=1;
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}
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else if (nprocs==2){
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nprocx=nprocy=1;
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nprocz=2;
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Nx=Ny=Nz=50;
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nspheres=0;
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Lx=Ly=Lz=1;
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}
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else if (nprocs==4){
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nprocx=nprocy=2;
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nprocz=1;
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Nx=Ny=Nz=50;
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nspheres=0;
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Lx=Ly=Lz=1;
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}
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else if (nprocs==8){
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nprocx=nprocy=nprocz=2;
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Nx=Ny=Nz=50;
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nspheres=0;
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Lx=Ly=Lz=1;
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}
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//.......................................................................
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}
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// **************************************************************
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// Broadcast simulation parameters from rank 0 to all other procs
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MPI_Barrier(comm);
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//.................................................
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MPI_Bcast(&Nx,1,MPI_INT,0,comm);
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MPI_Bcast(&Ny,1,MPI_INT,0,comm);
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MPI_Bcast(&Nz,1,MPI_INT,0,comm);
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MPI_Bcast(&nBlocks,1,MPI_INT,0,comm);
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MPI_Bcast(&nthreads,1,MPI_INT,0,comm);
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MPI_Bcast(×tepMax,1,MPI_INT,0,comm);
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char LocalRankString[8];
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sprintf(LocalRankString,"%05d",rank);
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char LocalRankFilename[40];
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sprintf(LocalRankFilename,"ID.%05i",rank);
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MPI_Bcast(&Nx,1,MPI_INT,0,comm);
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MPI_Bcast(&Ny,1,MPI_INT,0,comm);
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MPI_Bcast(&Nz,1,MPI_INT,0,comm);
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MPI_Bcast(&nprocx,1,MPI_INT,0,comm);
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MPI_Bcast(&nprocy,1,MPI_INT,0,comm);
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MPI_Bcast(&nprocz,1,MPI_INT,0,comm);
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MPI_Bcast(&nspheres,1,MPI_INT,0,comm);
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MPI_Bcast(&Lx,1,MPI_DOUBLE,0,comm);
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MPI_Bcast(&Ly,1,MPI_DOUBLE,0,comm);
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MPI_Bcast(&Lz,1,MPI_DOUBLE,0,comm);
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//.................................................
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MPI_Barrier(comm);
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// **************************************************************
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// **************************************************************
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char *id;
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id = new char[Nx*Ny*Nz];
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if (nprocs != nprocx*nprocy*nprocz){
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printf("nprocx = %i \n",nprocx);
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printf("nprocy = %i \n",nprocy);
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printf("nprocz = %i \n",nprocz);
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INSIST(nprocs == nprocx*nprocy*nprocz,"Fatal error in processor count!");
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}
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if (rank==0){
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printf("********************************************************\n");
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printf("Sub-domain size = %i x %i x %i\n",Nz,Nz,Nz);
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printf("Parallel domain size = %i x %i x %i\n",nprocx,nprocy,nprocz);
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printf("********************************************************\n");
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}
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MPI_Barrier(comm);
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kproc = rank/(nprocx*nprocy);
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jproc = (rank-nprocx*nprocy*kproc)/nprocx;
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iproc = rank-nprocx*nprocy*kproc-nprocz*jproc;
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double iVol_global = 1.0/Nx/Ny/Nz/nprocx/nprocy/nprocz;
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int BoundaryCondition=0;
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Domain Dm(Nx,Ny,Nz,rank,nprocx,nprocy,nprocz,Lx,Ly,Lz,BoundaryCondition);
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InitializeRanks( rank, nprocx, nprocy, nprocz, iproc, jproc, kproc,
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rank_x, rank_y, rank_z, rank_X, rank_Y, rank_Z,
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rank_xy, rank_XY, rank_xY, rank_Xy, rank_xz, rank_XZ, rank_xZ, rank_Xz,
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rank_yz, rank_YZ, rank_yZ, rank_Yz );
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Nx += 2;
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Ny += 2;
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Nz += 2;
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int N = Nx*Ny*Nz;
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int dist_mem_size = N*sizeof(double);
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//.......................................................................
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// Assign the phase ID field
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//.......................................................................
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char LocalRankString[8];
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sprintf(LocalRankString,"%05d",rank);
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char LocalRankFilename[40];
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sprintf(LocalRankFilename,"ID.%05i",rank);
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char *id;
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id = new char[Nx*Ny*Nz];
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/*
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* if (rank==0) printf("Assigning phase ID from file \n");
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* if (rank==0) printf("Initialize from segmented data: solid=0, NWP=1, WP=2 \n");
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/*
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* if (rank==0) printf("Assigning phase ID from file \n");
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* if (rank==0) printf("Initialize from segmented data: solid=0, NWP=1, WP=2 \n");
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FILE *IDFILE = fopen(LocalRankFilename,"rb");
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if (IDFILE==NULL) ERROR("Error opening file: ID.xxxxx");
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fread(id,1,N,IDFILE);
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fclose(IDFILE);
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*/
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// Setup the domain
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for (k=0;k<Nz;k++){
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for (j=0;j<Ny;j++){
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for (i=0;i<Nx;i++){
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n = k*Nx*Ny+j*Nx+i;
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id[n] = 1;
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Dm.id[n] = id[n];
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}
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}
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}
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Dm.CommInit(comm);
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//.......................................................................
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// Compute the media porosity
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//.......................................................................
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double sum;
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double sum_local=0.0, porosity;
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char component = 0; // solid phase
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for (k=1;k<Nz-1;k++){
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for (j=1;j<Ny-1;j++){
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for (i=1;i<Nx-1;i++){
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n = k*Nx*Ny+j*Nx+i;
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if (id[n] == component){
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sum_local+=1.0;
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*/
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// Setup the domain
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for (k=0;k<Nz;k++){
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for (j=0;j<Ny;j++){
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for (i=0;i<Nx;i++){
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n = k*Nx*Ny+j*Nx+i;
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id[n] = 1;
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Dm.id[n] = id[n];
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}
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}
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}
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}
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MPI_Allreduce(&sum_local,&sum,1,MPI_DOUBLE,MPI_SUM,comm);
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porosity = 1.0-sum*iVol_global;
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if (rank==0) printf("Media porosity = %f \n",porosity);
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//.......................................................................
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Dm.CommInit(comm);
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//...........................................................................
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MPI_Barrier(comm);
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if (rank == 0) cout << "Domain set." << endl;
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//...........................................................................
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//.......................................................................
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// Compute the media porosity
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//.......................................................................
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double sum;
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double sum_local=0.0, porosity;
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char component = 0; // solid phase
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for (k=1;k<Nz-1;k++){
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for (j=1;j<Ny-1;j++){
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for (i=1;i<Nx-1;i++){
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n = k*Nx*Ny+j*Nx+i;
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if (id[n] == component){
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sum_local+=1.0;
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}
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}
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}
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}
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MPI_Allreduce(&sum_local,&sum,1,MPI_DOUBLE,MPI_SUM,comm);
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porosity = 1.0-sum*iVol_global;
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if (rank==0) printf("Media porosity = %f \n",porosity);
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//.......................................................................
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//...........................................................................
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if (rank==0) printf ("Create ScaLBL_Communicator \n");
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// Create a communicator for the device
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ScaLBL_Communicator ScaLBL_Comm(Dm);
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//...........device phase ID.................................................
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if (rank==0) printf ("Copying phase ID to device \n");
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char *ID;
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AllocateDeviceMemory((void **) &ID, N); // Allocate device memory
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// Copy to the device
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CopyToDevice(ID, id, N);
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//...........................................................................
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//...........................................................................
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MPI_Barrier(comm);
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if (rank == 0) cout << "Domain set." << endl;
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//...........................................................................
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//...........................................................................
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// MAIN VARIABLES ALLOCATED HERE
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//...........................................................................
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// LBM variables
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if (rank==0) printf ("Allocating distributions \n");
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//......................device distributions.................................
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double *f_even,*f_odd;
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//...........................................................................
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AllocateDeviceMemory((void **) &f_even, 10*dist_mem_size); // Allocate device memory
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AllocateDeviceMemory((void **) &f_odd, 9*dist_mem_size); // Allocate device memory
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//...........................................................................
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double *f_even_host,*f_odd_host;
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f_even_host = new double [10*N];
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f_odd_host = new double [9*N];
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//...........................................................................
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//...........................................................................
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if (rank==0) printf ("Create ScaLBL_Communicator \n");
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// Create a communicator for the device
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ScaLBL_Communicator ScaLBL_Comm(Dm);
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/* // Write the communcation structure into a file for debugging
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//...........device phase ID.................................................
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if (rank==0) printf ("Copying phase ID to device \n");
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char *ID;
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AllocateDeviceMemory((void **) &ID, N); // Allocate device memory
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// Copy to the device
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CopyToDevice(ID, id, N);
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//...........................................................................
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//...........................................................................
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// MAIN VARIABLES ALLOCATED HERE
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//...........................................................................
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// LBM variables
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if (rank==0) printf ("Allocating distributions \n");
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//......................device distributions.................................
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double *f_even,*f_odd;
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//...........................................................................
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AllocateDeviceMemory((void **) &f_even, 10*dist_mem_size); // Allocate device memory
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AllocateDeviceMemory((void **) &f_odd, 9*dist_mem_size); // Allocate device memory
|
||||
//...........................................................................
|
||||
double *f_even_host,*f_odd_host;
|
||||
f_even_host = new double [10*N];
|
||||
f_odd_host = new double [9*N];
|
||||
//...........................................................................
|
||||
|
||||
/* // Write the communcation structure into a file for debugging
|
||||
char LocalCommFile[40];
|
||||
sprintf(LocalCommFile,"%s%s","Comm.",LocalRankString);
|
||||
FILE *CommFile;
|
||||
@ -410,47 +411,14 @@ int main(int argc, char **argv)
|
||||
fprintf(CommFile,"Yz=%d, ",rank_Yz);
|
||||
fprintf(CommFile,"\n");
|
||||
fclose(CommFile);
|
||||
*/
|
||||
if (rank==0) printf("Setting the distributions, size = : %i\n", N);
|
||||
//...........................................................................
|
||||
GlobalFlipInitD3Q19(f_even_host, f_odd_host, Nx-2, Ny-2, Nz-2,iproc,jproc,kproc,nprocx,nprocy,nprocz);
|
||||
CopyToDevice(f_even, f_even_host, 10*dist_mem_size);
|
||||
CopyToDevice(f_odd, f_odd_host, 9*dist_mem_size);
|
||||
DeviceBarrier();
|
||||
MPI_Barrier(comm);
|
||||
//*************************************************************************
|
||||
// Pack and send the D3Q19 distributions
|
||||
ScaLBL_Comm.SendD3Q19(f_even, f_odd);
|
||||
//*************************************************************************
|
||||
// Swap the distributions for momentum transport
|
||||
//*************************************************************************
|
||||
SwapD3Q19(ID, f_even, f_odd, Nx, Ny, Nz);
|
||||
//*************************************************************************
|
||||
// Wait for communications to complete and unpack the distributions
|
||||
ScaLBL_Comm.RecvD3Q19(f_even, f_odd);
|
||||
//*************************************************************************
|
||||
|
||||
//...........................................................................
|
||||
int check;
|
||||
CopyToHost(f_even_host,f_even,10*N*sizeof(double));
|
||||
CopyToHost(f_odd_host,f_odd,9*N*sizeof(double));
|
||||
check = GlobalCheckDebugDist(f_even_host, f_odd_host, Nx-2, Ny-2, Nz-2,iproc,jproc,kproc,nprocx,nprocy,nprocz);
|
||||
//...........................................................................
|
||||
|
||||
int timestep = 0;
|
||||
if (rank==0) printf("********************************************************\n");
|
||||
if (rank==0) printf("No. of timesteps for timing: %i \n", 100);
|
||||
|
||||
//.......create and start timer............
|
||||
double starttime,stoptime,cputime;
|
||||
MPI_Barrier(comm);
|
||||
starttime = MPI_Wtime();
|
||||
//.........................................
|
||||
|
||||
|
||||
//************ MAIN ITERATION LOOP (timing communications)***************************************/
|
||||
while (timestep < 100){
|
||||
|
||||
*/
|
||||
if (rank==0) printf("Setting the distributions, size = : %i\n", N);
|
||||
//...........................................................................
|
||||
GlobalFlipInitD3Q19(f_even_host, f_odd_host, Nx-2, Ny-2, Nz-2,iproc,jproc,kproc,nprocx,nprocy,nprocz);
|
||||
CopyToDevice(f_even, f_even_host, 10*dist_mem_size);
|
||||
CopyToDevice(f_odd, f_odd_host, 9*dist_mem_size);
|
||||
DeviceBarrier();
|
||||
MPI_Barrier(comm);
|
||||
//*************************************************************************
|
||||
// Pack and send the D3Q19 distributions
|
||||
ScaLBL_Comm.SendD3Q19(f_even, f_odd);
|
||||
@ -463,35 +431,68 @@ int main(int argc, char **argv)
|
||||
ScaLBL_Comm.RecvD3Q19(f_even, f_odd);
|
||||
//*************************************************************************
|
||||
|
||||
DeviceBarrier();
|
||||
//...........................................................................
|
||||
int check;
|
||||
CopyToHost(f_even_host,f_even,10*N*sizeof(double));
|
||||
CopyToHost(f_odd_host,f_odd,9*N*sizeof(double));
|
||||
check = GlobalCheckDebugDist(f_even_host, f_odd_host, Nx-2, Ny-2, Nz-2,iproc,jproc,kproc,nprocx,nprocy,nprocz);
|
||||
//...........................................................................
|
||||
|
||||
int timestep = 0;
|
||||
if (rank==0) printf("********************************************************\n");
|
||||
if (rank==0) printf("No. of timesteps for timing: %i \n", 100);
|
||||
|
||||
//.......create and start timer............
|
||||
double starttime,stoptime,cputime;
|
||||
MPI_Barrier(comm);
|
||||
// Iteration completed!
|
||||
timestep++;
|
||||
//...................................................................
|
||||
starttime = MPI_Wtime();
|
||||
//.........................................
|
||||
|
||||
|
||||
//************ MAIN ITERATION LOOP (timing communications)***************************************/
|
||||
while (timestep < 100){
|
||||
|
||||
//*************************************************************************
|
||||
// Pack and send the D3Q19 distributions
|
||||
ScaLBL_Comm.SendD3Q19(f_even, f_odd);
|
||||
//*************************************************************************
|
||||
// Swap the distributions for momentum transport
|
||||
//*************************************************************************
|
||||
SwapD3Q19(ID, f_even, f_odd, Nx, Ny, Nz);
|
||||
//*************************************************************************
|
||||
// Wait for communications to complete and unpack the distributions
|
||||
ScaLBL_Comm.RecvD3Q19(f_even, f_odd);
|
||||
//*************************************************************************
|
||||
|
||||
DeviceBarrier();
|
||||
MPI_Barrier(comm);
|
||||
// Iteration completed!
|
||||
timestep++;
|
||||
//...................................................................
|
||||
}
|
||||
//************************************************************************/
|
||||
stoptime = MPI_Wtime();
|
||||
// cout << "CPU time: " << (stoptime - starttime) << " seconds" << endl;
|
||||
cputime = stoptime - starttime;
|
||||
// cout << "Lattice update rate: "<< double(Nx*Ny*Nz*timestep)/cputime/1000000 << " MLUPS" << endl;
|
||||
double MLUPS = double(Nx*Ny*Nz*timestep)/cputime/1000000;
|
||||
if (rank==0) printf("********************************************************\n");
|
||||
if (rank==0) printf("CPU time = %f \n", cputime);
|
||||
if (rank==0) printf("Lattice update rate (per process)= %f MLUPS \n", MLUPS);
|
||||
MLUPS *= nprocs;
|
||||
if (rank==0) printf("Lattice update rate (process)= %f MLUPS \n", MLUPS);
|
||||
if (rank==0) printf("********************************************************\n");
|
||||
|
||||
// Number of memory references from the swap algorithm (per timestep)
|
||||
// 18 reads and 18 writes for each lattice site
|
||||
double MemoryRefs = (Nx-2)*(Ny-2)*(Nz-2)*36;
|
||||
// number of memory references for the swap algorithm - GigaBytes / second
|
||||
if (rank==0) printf("DRAM bandwidth (per process)= %f GB/sec \n",MemoryRefs*8*timestep/1e9);
|
||||
// Report bandwidth in Gigabits per second
|
||||
// communication bandwidth includes both send and recieve
|
||||
if (rank==0) printf("Communication bandwidth (per process)= %f Gbit/sec \n",ScaLBL_Comm.CommunicationCount*64*timestep/1e9);
|
||||
if (rank==0) printf("Aggregated communication bandwidth = %f Gbit/sec \n",nprocs*ScaLBL_Comm.CommunicationCount*64*timestep/1e9);
|
||||
}
|
||||
//************************************************************************/
|
||||
stoptime = MPI_Wtime();
|
||||
// cout << "CPU time: " << (stoptime - starttime) << " seconds" << endl;
|
||||
cputime = stoptime - starttime;
|
||||
// cout << "Lattice update rate: "<< double(Nx*Ny*Nz*timestep)/cputime/1000000 << " MLUPS" << endl;
|
||||
double MLUPS = double(Nx*Ny*Nz*timestep)/cputime/1000000;
|
||||
if (rank==0) printf("********************************************************\n");
|
||||
if (rank==0) printf("CPU time = %f \n", cputime);
|
||||
if (rank==0) printf("Lattice update rate (per process)= %f MLUPS \n", MLUPS);
|
||||
MLUPS *= nprocs;
|
||||
if (rank==0) printf("Lattice update rate (process)= %f MLUPS \n", MLUPS);
|
||||
if (rank==0) printf("********************************************************\n");
|
||||
|
||||
// Number of memory references from the swap algorithm (per timestep)
|
||||
// 18 reads and 18 writes for each lattice site
|
||||
double MemoryRefs = (Nx-2)*(Ny-2)*(Nz-2)*36;
|
||||
// number of memory references for the swap algorithm - GigaBytes / second
|
||||
if (rank==0) printf("DRAM bandwidth (per process)= %f GB/sec \n",MemoryRefs*8*timestep/1e9);
|
||||
// Report bandwidth in Gigabits per second
|
||||
// communication bandwidth includes both send and recieve
|
||||
if (rank==0) printf("Communication bandwidth (per process)= %f Gbit/sec \n",ScaLBL_Comm.CommunicationCount*64*timestep/1e9);
|
||||
if (rank==0) printf("Aggregated communication bandwidth = %f Gbit/sec \n",nprocs*ScaLBL_Comm.CommunicationCount*64*timestep/1e9);
|
||||
|
||||
// ****************************************************
|
||||
MPI_Barrier(comm);
|
||||
MPI_Finalize();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user