+++ /dev/null
-/*
- * Test for null proc handling with blocking routines
- */
-
-
-#include <stdio.h>
-#include "mpi.h"
-
-#if defined(NEEDS_STDLIB_PROTOTYPES)
-#include "protofix.h"
-#endif
-
-int main( int argc, char *argv[] )
-{
- int a[4];
- int i, nproc;
- int rank, right, left;
- MPI_Status st[2], sts[2];
- MPI_Request req[2];
- int count, errcnt = 0;
-
- /* start up */
- MPI_Init(&argc, &argv);
- MPI_Comm_size(MPI_COMM_WORLD, &nproc);
- MPI_Comm_rank(MPI_COMM_WORLD, &rank);
-
- /* set up processor chain (Apps should use Cart_create/shift) */
- left = (rank == 0) ? MPI_PROC_NULL : rank - 1;
- right = (rank == nproc - 1) ? MPI_PROC_NULL : rank + 1;
-
- /* initialize local matrix */
- /* globally: a[i] = i, i = 1 .. 2*nproc */
- /* locally : a[i] = 2*rank+i, i=1,2 */
- a[0] = -1;
- a[1] = 2*rank + 1;
- a[2] = 2*rank + 2;
- a[3] = -1;
-
- /* start all receives and sends */
- MPI_Isend(&a[1], 1, MPI_INT, left, 0, MPI_COMM_WORLD, &req[0]);
- MPI_Isend(&a[2], 1, MPI_INT, right, 1, MPI_COMM_WORLD, &req[1]);
- st[0].MPI_SOURCE = nproc;
- st[0].MPI_TAG = -1;
- st[1].MPI_SOURCE = nproc;
- st[1].MPI_TAG = -1;
- MPI_Recv(&a[0], 1, MPI_INT, left, 1, MPI_COMM_WORLD, &st[0]);
- MPI_Recv(&a[3], 1, MPI_INT, right, 0, MPI_COMM_WORLD, &st[1]);
- MPI_Waitall( 2, req, sts );
-
- /* Test the end points */
- if (left == MPI_PROC_NULL) {
- if (st[0].MPI_TAG != MPI_ANY_TAG ||
- st[0].MPI_SOURCE != MPI_PROC_NULL) {
- errcnt ++;
- fprintf( stderr, "Incorrect null status for left\n" );
- if (st[0].MPI_SOURCE != MPI_PROC_NULL) {
- fprintf( stderr, "Source returned was %d but should be %d\n",
- st[0].MPI_SOURCE, MPI_PROC_NULL );
- }
- }
- MPI_Get_count( &st[0], MPI_INT, &count );
- if (count != 0) {
- errcnt ++;
- fprintf( stderr, "Incorrect null status for left (count)\n" );
- fprintf( stderr, "Count was %d but should be 0\n", count );
- }
- }
- else if (right == MPI_PROC_NULL) {
- if (st[1].MPI_TAG != MPI_ANY_TAG ||
- st[1].MPI_SOURCE != MPI_PROC_NULL) {
- errcnt ++;
- fprintf( stderr, "Incorrect null status for right\n" );
- if (st[1].MPI_SOURCE != MPI_PROC_NULL) {
- fprintf( stderr, "Source returned was %d but should be %d\n",
- st[1].MPI_SOURCE, MPI_PROC_NULL );
- }
- }
- MPI_Get_count( &st[1], MPI_INT, &count );
- if (count != 0) {
- errcnt ++;
- fprintf( stderr, "Incorrect null status for right (count)\n" );
- fprintf( stderr, "Count was %d but should be 0\n", count );
- }
- }
-
- /* Test results */
- if (left == MPI_PROC_NULL) {
- if (a[0] != -1) {
- fprintf( stderr, "Expected -1, found %d in left partner\n", a[0] );
- errcnt ++;
- }
- }
- else {
- if (a[0] != 2 * left + 2) {
- fprintf( stderr, "Expected %d, found %d in left partner\n",
- 2 * left + 2, a[0] );
- errcnt ++;
- }
- }
-
- if (right == MPI_PROC_NULL) {
- if (a[3] != -1) {
- fprintf( stderr, "Expected -1, found %d in right partner\n", a[3] );
- errcnt ++;
- }
- }
- else {
- if (a[3] != 2 * right + 1) {
- fprintf( stderr, "Expected %d, found %d in right partner\n",
- 2 * right + 1, a[3] );
- errcnt ++;
- }
- }
-
-
- i = errcnt;
- MPI_Allreduce( &i, &errcnt, 1, MPI_INT, MPI_SUM, MPI_COMM_WORLD );
- if (rank == 0) {
- if (errcnt > 0) {
- printf( "Found %d errors in the run \n", errcnt );
- }
- else
- printf( "No errors in handling MPI_PROC_NULL\n" );
- }
-
- /* clean up */
- MPI_Finalize();
- return 0;
-}
