- for (i=0; i<n*size; i++) vecin[i] = (double)i;
- for (root=0; root<size; root++) {
- for (i=0; i<n*stride; i++) vecout[i] = -1.0;
- if (rank == root) {
- /* Receive into a vector */
- MPI_Scatter( vecin, n, MPI_DOUBLE, vecout, 1, vec,
- root, MPI_COMM_WORLD );
- for (i=0; i<n; i++) {
- ivalue = n*root + i;
- if (vecout[i*stride] != ivalue) {
- errs++;
- printf( "[%d] Expected %f but found %f for vecout[%d] on root\n",
- rank, ivalue, vecout[i*stride], i *stride );
- }
- }
- }
- else {
- /* Receive into contiguous data */
- MPI_Scatter( NULL, -1, MPI_DATATYPE_NULL, vecout, n, MPI_DOUBLE,
- root, MPI_COMM_WORLD );
- for (i=0; i<n; i++) {
- ivalue = rank * n + i;
- if (vecout[i] != ivalue) {
- printf( "[%d] Expected %f but found %f for vecout[%d]\n",
- rank, ivalue, vecout[i], i );
- errs++;
- }
- }
- }
+ for (i = 0; i < n * size; i++)
+ vecin[i] = (double) i;
+ for (root = 0; root < size; root++) {
+ for (i = 0; i < n * stride; i++)
+ vecout[i] = -1.0;
+ if (rank == root) {
+ /* Receive into a vector */
+ MPI_Scatter(vecin, n, MPI_DOUBLE, vecout, 1, vec, root, MPI_COMM_WORLD);
+ for (i = 0; i < n; i++) {
+ ivalue = n * root + i;
+ if (vecout[i * stride] != ivalue) {
+ errs++;
+ printf("[%d] Expected %f but found %f for vecout[%d] on root\n",
+ rank, ivalue, vecout[i * stride], i * stride);
+ }
+ }
+ }
+ else {
+ /* Receive into contiguous data */
+ MPI_Scatter(NULL, -1, MPI_DATATYPE_NULL, vecout, n, MPI_DOUBLE, root, MPI_COMM_WORLD);
+ for (i = 0; i < n; i++) {
+ ivalue = rank * n + i;
+ if (vecout[i] != ivalue) {
+ printf("[%d] Expected %f but found %f for vecout[%d]\n",
+ rank, ivalue, vecout[i], i);
+ errs++;
+ }
+ }
+ }