- for (count = 1; count < 65000; count = 2 * count) {
- buf = 0;
- if (leftGroup) {
- buf = (int *)malloc( count * rsize * sizeof(int) );
- if (rank == 0) {
- for (i=0; i<count*rsize; i++) buf[i] = i;
- }
- else {
- for (i=0; i<count*rsize; i++) buf[i] = -1;
- }
- err = MPI_Scatter( buf, count, datatype,
- NULL, 0, datatype,
- (rank == 0) ? MPI_ROOT : MPI_PROC_NULL,
- comm );
- if (err) {
- errs++;
- MTestPrintError( err );
- }
- /* Test that no other process in this group received the
- scatter */
- if (rank != 0) {
- for (i=0; i<count*rsize; i++) {
- if (buf[i] != -1) {
- if (errs < 10) {
- fprintf( stderr, "Received data on root group!\n" );
- }
- errs++;
- }
- }
- }
- }
- else {
- buf = (int *)malloc( count * sizeof(int) );
- /* In the right group */
- for (i=0; i<count; i++) buf[i] = -1;
- err = MPI_Scatter( NULL, 0, datatype,
- buf, count, datatype, 0, comm );
- if (err) {
- errs++;
- MTestPrintError( err );
- }
- /* Check that we have received the correct data */
- for (i=0; i<count; i++) {
- if (buf[i] != i + rank * count) {
- if (errs < 10)
- fprintf( stderr, "buf[%d] = %d on %d\n",
- i, buf[i], rank );
- errs++;
- }
- }
- }
- free( buf );
- }
- MTestFreeComm( &comm );
+ for (count = 1; count < 65000; count = 2 * count) {
+ buf = 0;
+ if (leftGroup) {
+ buf = (int *) malloc(count * rsize * sizeof(int));
+ if (rank == 0) {
+ for (i = 0; i < count * rsize; i++)
+ buf[i] = i;
+ }
+ else {
+ for (i = 0; i < count * rsize; i++)
+ buf[i] = -1;
+ }
+ err = MTest_Scatter(buf, count, datatype,
+ NULL, 0, datatype,
+ (rank == 0) ? MPI_ROOT : MPI_PROC_NULL, comm);
+ if (err) {
+ errs++;
+ MTestPrintError(err);
+ }
+ /* Test that no other process in this group received the
+ * scatter */
+ if (rank != 0) {
+ for (i = 0; i < count * rsize; i++) {
+ if (buf[i] != -1) {
+ if (errs < 10) {
+ fprintf(stderr, "Received data on root group!\n");
+ }
+ errs++;
+ }
+ }
+ }
+ }
+ else {
+ buf = (int *) malloc(count * sizeof(int));
+ /* In the right group */
+ for (i = 0; i < count; i++)
+ buf[i] = -1;
+ err = MTest_Scatter(NULL, 0, datatype, buf, count, datatype, 0, comm);
+ if (err) {
+ errs++;
+ MTestPrintError(err);
+ }
+ /* Check that we have received the correct data */
+ for (i = 0; i < count; i++) {
+ if (buf[i] != i + rank * count) {
+ if (errs < 10)
+ fprintf(stderr, "buf[%d] = %d on %d\n", i, buf[i], rank);
+ errs++;
+ }
+ }
+ }
+ free(buf);
+ }
+ MTestFreeComm(&comm);