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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <stdio.h>
#include <assert.h>
#include "mpitest.h"
int errs = 0;
static int test_bsend(MPI_Comm comm);
int main(int argc, char *argv[])
{
MPI_Session session;
MPI_Group group;
MPI_Comm comm;
MPI_Session_init(MPI_INFO_NULL, MPI_ERRORS_ARE_FATAL, &session);
MPI_Group_from_session_pset(session, "mpi://world", &group);
MPI_Comm_create_from_group(group, "session_bsend", MPI_INFO_NULL, MPI_ERRORS_ARE_FATAL, &comm);
#define BUFSIZE 1024 /* assume it is sufficient to cover MPI_BSEND_OVERHEAD */
char buffer[BUFSIZE];
char *dummy_buf;
int dummy_size;
MPI_Buffer_attach(buffer, BUFSIZE);
errs += test_bsend(comm);
MPI_Buffer_detach(&dummy_buf, &dummy_size);
if (dummy_buf != buffer)
printf("MPI_Buffer_detach: dummy_buf = %p, expect %p\n", dummy_buf, buffer);
if (dummy_size != BUFSIZE)
printf("MPI_Buffer_detach: dummy_size = %d, expect %d\n", dummy_size, BUFSIZE);
#if MTEST_HAVE_MIN_MPI_VERSION(4,1)
MPI_Session_attach_buffer(session, buffer, BUFSIZE);
errs += test_bsend(comm);
MPI_Session_detach_buffer(session, &dummy_buf, &dummy_size);
if (dummy_buf != buffer)
printf("MPI_Session_detach_buffer: dummy_buf = %p, expect %p\n", dummy_buf, buffer);
if (dummy_size != BUFSIZE)
printf("MPI_Session_detach_buffer: dummy_size = %d, expect %d\n", dummy_size, BUFSIZE);
MPI_Comm_attach_buffer(comm, buffer, BUFSIZE);
errs += test_bsend(comm);
MPI_Comm_detach_buffer(comm, &dummy_buf, &dummy_size);
if (dummy_buf != buffer)
printf("MPI_Comm_detach_buffer: dummy_buf = %p, expect %p\n", dummy_buf, buffer);
if (dummy_size != BUFSIZE)
printf("MPI_Comm_detach_buffer: dummy_size = %d, expect %d\n", dummy_size, BUFSIZE);
/* automatic buffer */
MPI_Buffer_attach(MPI_BUFFER_AUTOMATIC, 0);
errs += test_bsend(comm);
MPI_Buffer_detach(&dummy_buf, &dummy_size);
if (dummy_buf != MPI_BUFFER_AUTOMATIC)
printf("MPI_Buffer_detach: dummy_buf = %p, expect %p\n", dummy_buf, MPI_BUFFER_AUTOMATIC);
if (dummy_size != 0)
printf("MPI_Buffer_detach: dummy_size = %d, expect %d\n", dummy_size, 0);
MPI_Session_attach_buffer(session, MPI_BUFFER_AUTOMATIC, 0);
errs += test_bsend(comm);
MPI_Session_detach_buffer(session, &dummy_buf, &dummy_size);
if (dummy_buf != MPI_BUFFER_AUTOMATIC)
printf("MPI_Session_detach_buffer: dummy_buf = %p, expect %p\n", dummy_buf,
MPI_BUFFER_AUTOMATIC);
if (dummy_size != 0)
printf("MPI_Session_detach_buffer: dummy_size = %d, expect %d\n", dummy_size, 0);
MPI_Comm_attach_buffer(comm, MPI_BUFFER_AUTOMATIC, 0);
errs += test_bsend(comm);
MPI_Comm_detach_buffer(comm, &dummy_buf, &dummy_size);
if (dummy_buf != MPI_BUFFER_AUTOMATIC)
printf("MPI_Comm_detach_buffer: dummy_buf = %p, expect %p\n", dummy_buf,
MPI_BUFFER_AUTOMATIC);
if (dummy_size != 0)
printf("MPI_Comm_detach_buffer: dummy_size = %d, expect %d\n", dummy_size, 0);
/* large count variations */
MPI_Count dummy_size_c;
MPI_Buffer_attach_c(MPI_BUFFER_AUTOMATIC, 0);
errs += test_bsend(comm);
MPI_Buffer_detach_c(&dummy_buf, &dummy_size_c);
if (dummy_buf != MPI_BUFFER_AUTOMATIC)
printf("MPI_Buffer_detach_c: dummy_buf = %p, expect %p\n", dummy_buf, MPI_BUFFER_AUTOMATIC);
if (dummy_size != 0)
printf("MPI_Buffer_detach_c: dummy_size = %d, expect %d\n", (int) dummy_size, 0);
MPI_Session_attach_buffer_c(session, MPI_BUFFER_AUTOMATIC, 0);
errs += test_bsend(comm);
MPI_Session_detach_buffer_c(session, &dummy_buf, &dummy_size_c);
if (dummy_buf != MPI_BUFFER_AUTOMATIC)
printf("MPI_Session_detach_buffer_c: dummy_buf = %p, expect %p\n", dummy_buf,
MPI_BUFFER_AUTOMATIC);
if (dummy_size != 0)
printf("MPI_Session_detach_buffer_c: dummy_size = %d, expect %d\n", (int) dummy_size, 0);
MPI_Comm_attach_buffer_c(comm, MPI_BUFFER_AUTOMATIC, 0);
errs += test_bsend(comm);
MPI_Comm_detach_buffer_c(comm, &dummy_buf, &dummy_size_c);
if (dummy_buf != MPI_BUFFER_AUTOMATIC)
printf("MPI_Comm_detach_buffer_c: dummy_buf = %p, expect %p\n", dummy_buf,
MPI_BUFFER_AUTOMATIC);
if (dummy_size != 0)
printf("MPI_Comm_detach_buffer_c: dummy_size = %d, expect %d\n", (int) dummy_size, 0);
#endif
int rank;
MPI_Comm_rank(comm, &rank);
if (rank == 0 && errs == 0) {
printf("No Errors\n");
}
MPI_Comm_free(&comm);
MPI_Group_free(&group);
MPI_Session_finalize(&session);
return MTestReturnValue(errs);
}
static int test_bsend(MPI_Comm comm)
{
int rank, size;
MPI_Comm_rank(comm, &rank);
MPI_Comm_size(comm, &size);
int src = 0;
int dst = size > 1 ? size - 1 : 0;
int tag = 1234;
int err = 0;
#define N 10
int buf[N];
if (rank == src) {
for (int i = 0; i < N; i++) {
buf[i] = i;
}
MPI_Bsend(buf, N, MPI_INT, dst, tag, comm);
/* get err from dst */
int err;
MPI_Recv(&err, 1, MPI_INT, dst, tag, comm, MPI_STATUS_IGNORE);
}
if (rank == dst) {
for (int i = 0; i < N; i++) {
buf[i] = -1;
}
MPI_Recv(buf, N, MPI_INT, src, tag, comm, MPI_STATUS_IGNORE);
/* check err */
for (int i = 0; i < N; i++) {
if (buf[i] != i) {
err++;
}
}
MPI_Send(&err, 1, MPI_INT, src, tag, comm);
}
return err;
}
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