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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include <stdio.h>
#include <stdlib.h>
#include <mpi.h>
#include "mpitest.h"
#define NUM_LOOPS (128)
int main(int argc, char **argv)
{
int i, rank, size;
MPI_Request *req;
MPI_Datatype newtype;
int snd_buf[3], rcv_buf[3];
int count = 2;
int *displs;
MTest_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (size < 2) {
fprintf(stderr, "Must run with at least 2 processes\n");
MPI_Abort(MPI_COMM_WORLD, 1);
}
displs = (int *) malloc(count * sizeof(int));
for (i = 0; i < count; i++)
displs[i] = i * 2;
req = (MPI_Request *) malloc(NUM_LOOPS * sizeof(MPI_Request));
MPI_Barrier(MPI_COMM_WORLD);
/* test isends */
MPI_Type_create_indexed_block(count, 1, displs, MPI_INT, &newtype);
MPI_Type_commit(&newtype);
if (rank == 0) {
for (i = 0; i < NUM_LOOPS; i++)
MPI_Isend(snd_buf, 1, newtype, !rank, 0, MPI_COMM_WORLD, &req[i]);
} else {
for (i = 0; i < NUM_LOOPS; i++)
MPI_Recv(rcv_buf, 1, newtype, !rank, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
}
MPI_Type_free(&newtype);
if (rank == 0)
MPI_Waitall(NUM_LOOPS, req, MPI_STATUSES_IGNORE);
MPI_Barrier(MPI_COMM_WORLD);
/* test issends */
MPI_Type_create_indexed_block(count, 1, displs, MPI_INT, &newtype);
MPI_Type_commit(&newtype);
if (rank == 0) {
for (i = 0; i < NUM_LOOPS; i++)
MPI_Issend(snd_buf, 1, newtype, !rank, 0, MPI_COMM_WORLD, &req[i]);
} else {
for (i = 0; i < NUM_LOOPS; i++)
MPI_Recv(rcv_buf, 1, newtype, !rank, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
}
MPI_Type_free(&newtype);
if (rank == 0)
MPI_Waitall(NUM_LOOPS, req, MPI_STATUSES_IGNORE);
MPI_Barrier(MPI_COMM_WORLD);
/* test irsends */
MPI_Type_create_indexed_block(count, 1, displs, MPI_INT, &newtype);
MPI_Type_commit(&newtype);
if (rank == 0) {
MPI_Barrier(MPI_COMM_WORLD);
for (i = 0; i < NUM_LOOPS; i++)
MPI_Irsend(snd_buf, 1, newtype, !rank, 0, MPI_COMM_WORLD, &req[i]);
} else {
for (i = 0; i < NUM_LOOPS; i++)
MPI_Irecv(rcv_buf, 1, newtype, !rank, 0, MPI_COMM_WORLD, &req[i]);
MPI_Barrier(MPI_COMM_WORLD);
}
MPI_Type_free(&newtype);
MPI_Waitall(NUM_LOOPS, req, MPI_STATUSES_IGNORE);
MPI_Barrier(MPI_COMM_WORLD);
MTest_Finalize(0);
free(displs);
free(req);
return 0;
}
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