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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include <stdio.h>
#include "mpi.h"
#include "mpitest.h"
/* Test bsend with a buffer with arbitrary alignment */
#define BUFSIZE 2000*4
int main(int argc, char *argv[])
{
MPI_Status status;
int a[10], b[10];
int align;
char buf[BUFSIZE + 8], *bptr;
int bl, i, j, rank, size;
int errs = 0;
MTest_Init(0, 0);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
for (align = 0; align < 7; align++) {
MPI_Buffer_attach(buf + align, BUFSIZE);
for (j = 0; j < 10; j++) {
for (i = 0; i < 10; i++) {
a[i] = (rank + 10 * j) * size + i;
}
MPI_Bsend(a, 10, MPI_INT, 0, 27 + j, MPI_COMM_WORLD);
}
if (rank == 0) {
for (i = 0; i < size; i++) {
for (j = 0; j < 10; j++) {
int k;
status.MPI_TAG = -10;
status.MPI_SOURCE = -20;
MPI_Recv(b, 10, MPI_INT, i, 27 + j, MPI_COMM_WORLD, &status);
if (status.MPI_TAG != 27 + j) {
errs++;
printf("Wrong tag = %d\n", status.MPI_TAG);
}
if (status.MPI_SOURCE != i) {
errs++;
printf("Wrong source = %d\n", status.MPI_SOURCE);
}
for (k = 0; k < 10; k++) {
if (b[k] != (i + 10 * j) * size + k) {
errs++;
printf("(Align=%d) received b[%d] = %d (expected %d) from %d tag %d\n",
align, k, b[k], (i + 10 * j), i, 27 + j);
}
}
}
}
}
MPI_Buffer_detach(&bptr, &bl);
if (bptr != buf + align) {
errs++;
printf
("Did not receive the same buffer on detach that was provided on init (%p vs %p)\n",
bptr, buf);
}
}
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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