#define MAXELEMS 6400
#define COUNT 1000
-static int me, nproc;
static const int verbose = 0;
int test_put(void);
int test_put(void)
{
- MPI_Win dst_win;
- double *dst_buf;
- double src_buf[MAXELEMS];
- int i, j;
- int errs = 0;
+ int me, nproc;
+ MPI_Comm_size(MPI_COMM_WORLD, &nproc);
+ MPI_Comm_rank(MPI_COMM_WORLD, &me);
- MPI_Alloc_mem(sizeof(double)*nproc*MAXELEMS, MPI_INFO_NULL, &dst_buf);
- MPI_Win_create(dst_buf, sizeof(double)*nproc*MAXELEMS, 1, MPI_INFO_NULL,
- MPI_COMM_WORLD, &dst_win);
+ assert(COUNT <= MAXELEMS);
- for (i = 0; i < MAXELEMS; i++)
- src_buf[i] = me + 1.0;
+ if (me == 0 && verbose) {
+ printf("Test starting on %d processes\n", nproc);
+ fflush(stdout);
+ }
+
+ MPI_Win dst_win;
+ double *dst_buf;
+ double src_buf[MAXELEMS];
+ int i, j;
+ int errs = 0;
- MPI_Win_lock(MPI_LOCK_EXCLUSIVE, me, 0, dst_win);
+ MPI_Alloc_mem(sizeof(double) * nproc * MAXELEMS, MPI_INFO_NULL, &dst_buf);
+ MPI_Win_create(dst_buf, sizeof(double) * nproc * MAXELEMS, 1, MPI_INFO_NULL,
+ MPI_COMM_WORLD, &dst_win);
- for (i = 0; i < nproc*MAXELEMS; i++)
- dst_buf[i] = 0.0;
+ for (i = 0; i < MAXELEMS; i++)
+ src_buf[i] = me + 1.0;
- MPI_Win_unlock(me, dst_win);
+ MPI_Win_lock(MPI_LOCK_EXCLUSIVE, me, 0, dst_win);
- MPI_Barrier(MPI_COMM_WORLD);
+ for (i = 0; i < nproc * MAXELEMS; i++)
+ dst_buf[i] = 0.0;
- for(i = 0; i < nproc; i++) {
- /* int target = (me + i) % nproc; */
- int target = i;
- for(j = 0; j < COUNT; j++) {
- if (verbose) printf("%2d -> %2d [%2d]\n", me, target, j);
- MPI_Win_lock(MPI_LOCK_EXCLUSIVE, target, 0, dst_win);
- MPI_Put(&src_buf[j], sizeof(double), MPI_BYTE, target,
- (me*MAXELEMS+j)*sizeof(double), sizeof(double), MPI_BYTE, dst_win);
- MPI_Win_unlock(target, dst_win);
+ MPI_Win_unlock(me, dst_win);
+
+ MPI_Barrier(MPI_COMM_WORLD);
+
+ for (i = 0; i < nproc; i++) {
+ /* int target = (me + i) % nproc; */
+ int target = i;
+ for (j = 0; j < COUNT; j++) {
+ if (verbose)
+ printf("%2d -> %2d [%2d]\n", me, target, j);
+ MPI_Win_lock(MPI_LOCK_EXCLUSIVE, target, 0, dst_win);
+ MPI_Put(&src_buf[j], sizeof(double), MPI_BYTE, target,
+ (me * MAXELEMS + j) * sizeof(double), sizeof(double), MPI_BYTE, dst_win);
+ MPI_Win_unlock(target, dst_win);
+ }
}
- }
-
- MPI_Barrier(MPI_COMM_WORLD);
-
- /* Check that the correct data was returned. This assumes that the
- systems have the same data representations */
- for (i=0; i<nproc; i++) {
- for (j=0; j<COUNT; j++) {
- if (dst_buf[i*MAXELEMS+j] != 1.0 + i) {
- errs++;
- printf( "dst_buf[%d] = %e, expected %e\n",
- i*MAXELEMS+j, dst_buf[i*MAXELEMS+j], 1.0 + i );
- }
- }
- }
-
- MPI_Win_free(&dst_win);
- MPI_Free_mem(dst_buf);
-
- return errs;
+
+ MPI_Barrier(MPI_COMM_WORLD);
+
+ /* Check that the correct data was returned. This assumes that the
+ * systems have the same data representations */
+ for (i = 0; i < nproc; i++) {
+ for (j = 0; j < COUNT; j++) {
+ if (dst_buf[i * MAXELEMS + j] != 1.0 + i) {
+ errs++;
+ printf("dst_buf[%d] = %e, expected %e\n",
+ i * MAXELEMS + j, dst_buf[i * MAXELEMS + j], 1.0 + i);
+ }
+ }
+ }
+
+ MPI_Win_free(&dst_win);
+ MPI_Free_mem(dst_buf);
+
+ return errs;
}
-int main(int argc, char* argv[]) {
+int main(int argc, char *argv[])
+{
int errs = 0;
MTest_Init(&argc, &argv);
- MPI_Comm_size(MPI_COMM_WORLD, &nproc);
- MPI_Comm_rank(MPI_COMM_WORLD, &me);
-
- assert(COUNT <= MAXELEMS);
-
- if (me == 0 && verbose) {
- printf("Test starting on %d processes\n", nproc);
- fflush(stdout);
- }
-
+
errs = test_put();
-
+
MPI_Barrier(MPI_COMM_WORLD);
-
- MTest_Finalize( errs );
+
+ MTest_Finalize(errs);
MPI_Finalize();
- return MTestReturnValue( errs );
+ return MTestReturnValue(errs);
}
