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/*
* Copyright (C) 2010. See COPYRIGHT in top-level directory.
*/
#include <stdio.h>
#include <stdlib.h>
#include <mpi.h>
#include <armci.h>
#define MAX_XDIM 1024
#define MAX_YDIM 1024
#define ITERATIONS 100
#define SKIP 10
int main(int argc, char *argv[]) {
int i, j, rank, nranks;
int xdim, ydim;
long bufsize;
double **buffer;
double t_start=0.0, t_stop=0.0;
int count[2], src_stride, trg_stride, stride_level, peer;
double expected, actual;
int provided;
MPI_Init_thread(&argc, &argv, MPI_THREAD_SINGLE, &provided);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &nranks);
if (nranks < 2) {
printf("%s: Must be run with at least 2 processes\n", argv[0]);
MPI_Abort(MPI_COMM_WORLD, 1);
}
ARMCI_Init_args(&argc, &argv);
bufsize = MAX_XDIM * MAX_YDIM * sizeof(double);
buffer = (double **) malloc(sizeof(double *) * nranks);
ARMCI_Malloc((void **) buffer, bufsize);
for(i=0; i< bufsize/sizeof(double); i++) {
*(buffer[rank] + i) = 1.0 + rank;
}
if(rank == 0) {
printf("ARMCI_PutS Latency - local and remote completions - in usec \n");
printf("%30s %22s %22s\n", "Dimensions(array of doubles)", "Latency-LocalCompeltion", "Latency-RemoteCompletion");
fflush(stdout);
}
src_stride = MAX_YDIM*sizeof(double);
trg_stride = MAX_YDIM*sizeof(double);
stride_level = 1;
ARMCI_Barrier();
for(xdim=1; xdim<=MAX_XDIM; xdim*=2) {
count[1] = xdim;
for(ydim=1; ydim<=MAX_YDIM; ydim*=2) {
count[0] = ydim*sizeof(double);
if(rank == 0)
{
peer = 1;
for(i=0; i<ITERATIONS+SKIP; i++) {
if(i == SKIP)
t_start = MPI_Wtime();
ARMCI_PutS((void *) buffer[rank], &src_stride, (void *) buffer[peer], &trg_stride, count, stride_level, peer);
}
t_stop = MPI_Wtime();
ARMCI_Fence(peer);
char temp[10];
sprintf(temp,"%dX%d", xdim, ydim);
printf("%30s %20.2f", temp, ((t_stop-t_start)*1000000)/ITERATIONS);
fflush(stdout);
ARMCI_Barrier();
ARMCI_Barrier();
for(i=0; i<ITERATIONS+SKIP; i++) {
if(i == SKIP)
t_start = MPI_Wtime();
ARMCI_PutS((void *) buffer[rank], &src_stride, (void *) buffer[peer], &trg_stride, count, stride_level, peer);
ARMCI_Fence(peer);
}
t_stop = MPI_Wtime();
printf("%20.2f \n", ((t_stop-t_start)*1000000)/ITERATIONS);
fflush(stdout);
ARMCI_Barrier();
ARMCI_Barrier();
}
else
{
peer = 0;
expected = (1.0 + (double) peer);
ARMCI_Barrier();
if (rank == 1)
{
for(i=0; i<xdim; i++)
{
for(j=0; j<ydim; j++)
{
actual = *(buffer[rank] + i*MAX_YDIM + j);
if(actual != expected)
{
printf("Data validation failed at X: %d Y: %d Expected : %f Actual : %f \n",
i, j, expected, actual);
fflush(stdout);
ARMCI_Error("Bailing out", 1);
}
}
}
}
for(i=0; i< bufsize/sizeof(double); i++) {
*(buffer[rank] + i) = 1.0 + rank;
}
ARMCI_Barrier();
ARMCI_Barrier();
if (rank == 1)
{
for(i=0; i<xdim; i++)
{
for(j=0; j<ydim; j++)
{
actual = *(buffer[rank] + i*MAX_YDIM + j);
if(actual != expected)
{
printf("Data validation failed at X: %d Y: %d Expected : %f Actual : %f \n",
i, j, expected, actual);
fflush(stdout);
ARMCI_Error("Bailing out", 1);
}
}
}
for(i=0; i< bufsize/sizeof(double); i++) {
*(buffer[rank] + i) = 1.0 + rank;
}
}
ARMCI_Barrier();
}
}
}
ARMCI_Barrier();
ARMCI_Free((void *) buffer[rank]);
free(buffer);
ARMCI_Finalize();
MPI_Finalize();
return 0;
}
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