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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 10
#define SKIP 1
#ifdef VANILLA_ARMCI
#define ARMCI_Access_begin(X) ((void*)0)
#define ARMCI_Access_end(X) ((void*)0)
#endif
int main(int argc, char **argv)
{
int i, j, rank, nranks, peer;
size_t xdim, ydim;
unsigned long bufsize;
double **buffer, *src_buf;
double t_start=0.0, t_stop;
int count[2], src_stride, trg_stride, stride_level;
double scaling;
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);
buffer = (double **) malloc(sizeof(double *) * nranks);
bufsize = MAX_XDIM * MAX_YDIM * sizeof(double);
ARMCI_Malloc((void **) buffer, bufsize);
src_buf = ARMCI_Malloc_local(bufsize);
if (rank == 0)
{
printf("ARMCI_AccS Latency - local and remote completions - in usec \n");
printf("%30s %22s %22s\n",
"Dimensions(array of double)",
"Local Completion",
"Remote completion");
fflush(stdout);
}
ARMCI_Access_begin(buffer[rank]);
for (i = 0; i < bufsize / sizeof(double); i++)
{
*(buffer[rank] + i) = 1.0 + rank;
*(src_buf + i) = 1.0 + rank;
}
ARMCI_Access_end(buffer[rank]);
scaling = 2.0;
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_AccS(ARMCI_ACC_DBL,
(void *) &scaling,
/* (void *) buffer[rank] */ src_buf,
&src_stride,
(void *) buffer[peer],
&trg_stride,
count,
stride_level,
1);
}
t_stop = MPI_Wtime();
ARMCI_Fence(1);
char temp[10];
sprintf(temp, "%dX%d", (int) xdim, (int) 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_AccS(ARMCI_ACC_DBL,
(void *) &scaling,
/* (void *) buffer[rank] */ src_buf,
&src_stride,
(void *) buffer[peer],
&trg_stride,
count,
stride_level,
1);
ARMCI_Fence(1);
}
t_stop = MPI_Wtime();
printf("%20.2f \n", ((t_stop - t_start) * 1000000) / ITERATIONS);
fflush(stdout);
ARMCI_Barrier();
ARMCI_Barrier();
}
else
{
peer = 0;
ARMCI_Barrier();
if (rank == 1)
{
ARMCI_Access_begin(buffer[rank]);
for (i = 0; i < xdim; i++)
{
for (j = 0; j < ydim; j++)
{
if (*(buffer[rank] + i * MAX_XDIM + j) != ((1.0 + rank)
+ scaling * (1.0 + peer) * (ITERATIONS + SKIP)))
{
printf("Data validation failed at X: %d Y: %d Expected : %f Actual : %f \n",
i,
j,
((1.0 + rank) + scaling * (1.0 + peer)),
*(buffer[rank] + i * MAX_YDIM + j));
fflush(stdout);
ARMCI_Error("Bailing out", 1);
}
}
}
for (i = 0; i < bufsize / sizeof(double); i++)
{
*(buffer[rank] + i) = 1.0 + rank;
}
ARMCI_Access_end(buffer[rank]);
}
ARMCI_Barrier();
ARMCI_Barrier();
if (rank == 1)
{
ARMCI_Access_begin(buffer[rank]);
for (i = 0; i < xdim; i++)
{
for (j = 0; j < ydim; j++)
{
if (*(buffer[rank] + i * MAX_XDIM + j) != ((1.0 + rank)
+ scaling * (1.0 + peer) * (ITERATIONS + SKIP)))
{
printf("Data validation failed at X: %d Y: %d Expected : %f Actual : %f \n",
i,
j,
((1.0 + rank) + scaling * (1.0 + peer)),
*(buffer[rank] + i * MAX_YDIM + j));
fflush(stdout);
ARMCI_Error("Bailing out", 1);
}
}
}
for (i = 0; i < bufsize / sizeof(double); i++)
{
*(buffer[rank] + i) = 1.0 + rank;
}
ARMCI_Access_end(buffer[rank]);
}
ARMCI_Barrier();
}
}
}
ARMCI_Barrier();
ARMCI_Free((void *) buffer[rank]);
ARMCI_Free_local(src_buf);
free(buffer);
ARMCI_Finalize();
MPI_Finalize();
return 0;
}
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