const int verbose = 0;
-int main(int argc, char **argv) {
- int i, j, rank, nproc;
- int shm_rank, shm_nproc;
+int main(int argc, char **argv)
+{
+ int i, j, rank, nproc;
+ int shm_rank, shm_nproc;
MPI_Aint size;
- int errors = 0, all_errors = 0;
- int *base, *my_base;
- int disp_unit;
- MPI_Win shm_win;
+ int errors = 0, all_errors = 0;
+ int *base, *my_base;
+ int disp_unit;
+ MPI_Win shm_win;
MPI_Comm shm_comm;
MPI_Init(&argc, &argv);
MPI_Comm_size(shm_comm, &shm_nproc);
/* Allocate ELEM_PER_PROC integers for each process */
- MPI_Win_allocate_shared(sizeof(int)*ELEM_PER_PROC, sizeof(int), MPI_INFO_NULL,
- shm_comm, &my_base, &shm_win);
+ MPI_Win_allocate_shared(sizeof(int) * ELEM_PER_PROC, sizeof(int), MPI_INFO_NULL,
+ shm_comm, &my_base, &shm_win);
/* Locate absolute base */
- MPI_Win_shared_query(shm_win, MPI_PROC_NULL, &size, &disp_unit, &base);
+ MPI_Win_shared_query(shm_win, MPI_PROC_NULL, &size, &disp_unit, &base);
/* make sure the query returned the right values */
if (disp_unit != sizeof(int))
if (shm_rank && (base == my_base))
errors++;
- if (verbose) printf("%d -- size = %d baseptr = %p my_baseptr = %p\n", shm_rank,
- (int) size, (void*) base, (void*) my_base);
+ if (verbose)
+ printf("%d -- size = %d baseptr = %p my_baseptr = %p\n", shm_rank,
+ (int) size, (void *) base, (void *) my_base);
MPI_Win_lock_all(MPI_MODE_NOCHECK, shm_win);
/* Read and verify everyone's data */
for (i = 0; i < shm_nproc; i++) {
for (j = 0; j < ELEM_PER_PROC; j++) {
- if ( base[i*ELEM_PER_PROC + j] != j ) {
+ if (base[i * ELEM_PER_PROC + j] != j) {
errors++;
printf("%d -- Got %d at rank %d index %d, expected %d\n", shm_rank,
- base[i*ELEM_PER_PROC + j], i, j, j);
+ base[i * ELEM_PER_PROC + j], i, j, j);
}
}
}