#include <stdio.h>
#include <stdlib.h>
#include "mpitest.h"
+#include "mpicolltest.h"
/*
static char MTEST_Descrip[] = "Simple intercomm reduce test";
*/
-int main( int argc, char *argv[] )
+int main(int argc, char *argv[])
{
int errs = 0, err;
- int *sendbuf = 0, *recvbuf=0;
+ int *sendbuf = 0, *recvbuf = 0;
int leftGroup, i, count, rank, rsize;
MPI_Comm comm;
MPI_Datatype datatype;
- MTest_Init( &argc, &argv );
+ MTest_Init(&argc, &argv);
datatype = MPI_INT;
/* Get an intercommunicator */
- while (MTestGetIntercomm( &comm, &leftGroup, 4 )) {
+ while (MTestGetIntercomm(&comm, &leftGroup, 4)) {
if (comm == MPI_COMM_NULL)
continue;
- MPI_Comm_rank( comm, &rank );
- MPI_Comm_remote_size( comm, &rsize );
+ MPI_Comm_rank(comm, &rank);
+ MPI_Comm_remote_size(comm, &rsize);
- /* To improve reporting of problems about operations, we
- change the error handler to errors return */
- MPI_Comm_set_errhandler( comm, MPI_ERRORS_RETURN );
+ /* To improve reporting of problems about operations, we
+ * change the error handler to errors return */
+ MPI_Comm_set_errhandler(comm, MPI_ERRORS_RETURN);
- for (count = 1; count < 65000; count = 2 * count) {
- sendbuf = (int *)malloc( count * sizeof(int) );
- recvbuf = (int *)malloc( count * sizeof(int) );
- for (i=0; i<count; i++) {
- sendbuf[i] = -1;
- recvbuf[i] = -1;
- }
- if (leftGroup) {
- err = MPI_Reduce( sendbuf, recvbuf, count, datatype, MPI_SUM,
- (rank == 0) ? MPI_ROOT : MPI_PROC_NULL,
- comm );
- if (err) {
- errs++;
- MTestPrintError( err );
- }
- /* Test that no other process in this group received the
- broadcast, and that we got the right answers */
- if (rank == 0) {
- for (i=0; i<count; i++) {
- if (recvbuf[i] != i * rsize) {
- errs++;
- }
- }
- }
- else {
- for (i=0; i<count; i++) {
- if (recvbuf[i] != -1) {
- errs++;
- }
- }
- }
- }
- else {
- /* In the right group */
- for (i=0; i<count; i++) sendbuf[i] = i;
- err = MPI_Reduce( sendbuf, recvbuf, count, datatype, MPI_SUM,
- 0, comm );
- if (err) {
- errs++;
- MTestPrintError( err );
- }
- /* Check that we have received no data */
- for (i=0; i<count; i++) {
- if (recvbuf[i] != -1) {
- errs++;
- }
- }
- }
- free( sendbuf );
- free( recvbuf );
- }
- MTestFreeComm( &comm );
+ for (count = 1; count < 65000; count = 2 * count) {
+ sendbuf = (int *) malloc(count * sizeof(int));
+ recvbuf = (int *) malloc(count * sizeof(int));
+ for (i = 0; i < count; i++) {
+ sendbuf[i] = -1;
+ recvbuf[i] = -1;
+ }
+ if (leftGroup) {
+ err = MTest_Reduce(sendbuf, recvbuf, count, datatype, MPI_SUM,
+ (rank == 0) ? MPI_ROOT : MPI_PROC_NULL, comm);
+ if (err) {
+ errs++;
+ MTestPrintError(err);
+ }
+ /* Test that no other process in this group received the
+ * broadcast, and that we got the right answers */
+ if (rank == 0) {
+ for (i = 0; i < count; i++) {
+ if (recvbuf[i] != i * rsize) {
+ errs++;
+ }
+ }
+ }
+ else {
+ for (i = 0; i < count; i++) {
+ if (recvbuf[i] != -1) {
+ errs++;
+ }
+ }
+ }
+ }
+ else {
+ /* In the right group */
+ for (i = 0; i < count; i++)
+ sendbuf[i] = i;
+ err = MTest_Reduce(sendbuf, recvbuf, count, datatype, MPI_SUM, 0, comm);
+ if (err) {
+ errs++;
+ MTestPrintError(err);
+ }
+ /* Check that we have received no data */
+ for (i = 0; i < count; i++) {
+ if (recvbuf[i] != -1) {
+ errs++;
+ }
+ }
+ }
+ free(sendbuf);
+ free(recvbuf);
+ }
+ MTestFreeComm(&comm);
}
- MTest_Finalize( errs );
+ MTest_Finalize(errs);
MPI_Finalize();
return 0;
}
