{
int rank, size;
int i;
- long int *sb;
- long int *rb;
+ unsigned long long *sb;
+ unsigned long long *rb;
int status;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
- sb = (long int *) xbt_malloc(size * sizeof(long int));
- rb = (long int *) xbt_malloc(size * sizeof(long int));
+ sb = (unsigned long long *) xbt_malloc(size * sizeof(unsigned long long));
+ rb = (unsigned long long *) xbt_malloc(size * sizeof(unsigned long long));
for (i = 0; i < size; ++i) {
sb[i] = rank*size + i;
}
printf("[%d] sndbuf=[", rank);
for (i = 0; i < size; i++)
- printf("%ld ", sb[i]);
+ printf("%llu ", sb[i]);
printf("]\n");
int root=0;
- status = MPI_Reduce(sb, rb, size, MPI_LONG, MPI_SUM, root, MPI_COMM_WORLD);
+ status = MPI_Reduce(sb, rb, size, MPI_UNSIGNED_LONG_LONG, MPI_SUM, root, MPI_COMM_WORLD);
MPI_Barrier(MPI_COMM_WORLD);
if (rank == root) {
printf("[%d] rcvbuf=[", rank);
for (i = 0; i < size; i++)
- printf("%ld ", rb[i]);
+ printf("%llu ", rb[i]);
printf("]\n");
if (status != MPI_SUCCESS) {
printf("all_to_all returned %d\n", status);
printf("[%d] second sndbuf=[", rank);
for (i = 0; i < 1; i++)
- printf("%ld ", sb[i]);
+ printf("%llu ", sb[i]);
printf("]\n");
root=size-1;
- status = MPI_Reduce(sb, rb, 1, MPI_LONG, MPI_PROD, root, MPI_COMM_WORLD);
+ status = MPI_Reduce(sb, rb, 1, MPI_UNSIGNED_LONG_LONG, MPI_PROD, root, MPI_COMM_WORLD);
MPI_Barrier(MPI_COMM_WORLD);
if (rank == root) {
printf("[%d] rcvbuf=[", rank);
for (i = 0; i < 1; i++)
- printf("%ld ", rb[i]);
+ printf("%llu ", rb[i]);
printf("]\n");
if (status != MPI_SUCCESS) {
printf("all_to_all returned %d\n", status);