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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
/*
* This program checks if MPICH can correctly handle multiple
* persistent communication calls with a derived datatype
*/
#include <mpi.h>
#include <stdio.h>
#include <stdlib.h>
#include "mpitest.h"
#define ITER 16
int main(int argc, char *argv[])
{
int size, rank;
int i;
MPI_Request req;
MPI_Datatype int_dup;
int v = 1, errs = 0;
MTest_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (size != 2) {
fprintf(stderr, "Launch with two processes\n");
MPI_Abort(MPI_COMM_WORLD, 1);
}
if (rank == 0)
MTestPrintfMsg(1, "Test 1: Persistent send - Recv\n");
if (rank == 0) {
MPI_Type_dup(MPI_INT, &int_dup);
v = 42;
MPI_Send_init(&v, 1, int_dup, 1, 0, MPI_COMM_WORLD, &req);
MPI_Type_free(&int_dup);
for (i = 0; i < ITER; i++) {
MPI_Status s;
MPI_Start(&req);
MPI_Wait(&req, &s);
}
MPI_Request_free(&req);
} else {
for (i = 0; i < ITER; i++) {
v = -1;
MPI_Recv(&v, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
if (v != 42) {
errs++;
fprintf(stderr, "Psend-recv iteration %d: Expected 42 but got %d\n", i, v);
}
}
}
if (rank == 0)
MTestPrintfMsg(1, "Test 2: Send - Persistent recv (with ANY_SOURCE)\n");
if (rank == 0) {
for (i = 0; i < ITER; i++) {
v = i;
MPI_Send(&v, 1, MPI_INT, 1, 0, MPI_COMM_WORLD);
}
} else {
MPI_Type_dup(MPI_INT, &int_dup);
MPI_Recv_init(&v, 1, int_dup, MPI_ANY_SOURCE, 0, MPI_COMM_WORLD, &req);
MPI_Type_free(&int_dup);
for (i = 0; i < ITER; i++) {
MPI_Status s;
v = -1;
MPI_Start(&req);
MPI_Wait(&req, &s);
if (v != i) {
errs++;
fprintf(stderr, "Send-precv(anysrc) iteration %d: Expected %d but got %d\n",
i, i, v);
}
}
MPI_Request_free(&req);
}
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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