/* One-Sided MPI 2-D Strided Accumulate Test
*
- * Author: James Dinan <dinan@mcs.anl.gov>
+ * Author: James Dinan <dinan@mcs.anl.gov>
* Date : December, 2010
*
* This code performs N accumulates into a 2d patch of a shared array. The
#define SUB_YDIM 8
#define ITERATIONS 1
-int main(int argc, char **argv) {
+int main(int argc, char **argv)
+{
int itr, i, j, rank, nranks, peer, bufsize, errors;
double *win_buf, *src_buf;
MPI_Win buf_win;
MPI_Alloc_mem(bufsize, MPI_INFO_NULL, &win_buf);
MPI_Alloc_mem(bufsize, MPI_INFO_NULL, &src_buf);
- for (i = 0; i < XDIM*YDIM; i++) {
+ for (i = 0; i < XDIM * YDIM; i++) {
*(win_buf + i) = -1.0;
*(src_buf + i) = 1.0 + rank;
}
MPI_Win_create(win_buf, bufsize, 1, MPI_INFO_NULL, MPI_COMM_WORLD, &buf_win);
- peer = (rank+1) % nranks;
+ peer = (rank + 1) % nranks;
/* Perform ITERATIONS strided accumulate operations */
for (itr = 0; itr < ITERATIONS; itr++) {
- MPI_Aint idx_loc[SUB_YDIM];
- int idx_rem[SUB_YDIM];
- int blk_len[SUB_YDIM];
- MPI_Datatype src_type, dst_type;
-
- for (i = 0; i < SUB_YDIM; i++) {
- MPI_Get_address(&src_buf[i*XDIM], &idx_loc[i]);
- idx_rem[i] = i*XDIM;
- blk_len[i] = SUB_XDIM;
- }
+ MPI_Aint idx_loc[SUB_YDIM];
+ int idx_rem[SUB_YDIM];
+ int blk_len[SUB_YDIM];
+ MPI_Datatype src_type, dst_type;
+
+ for (i = 0; i < SUB_YDIM; i++) {
+ MPI_Get_address(&src_buf[i * XDIM], &idx_loc[i]);
+ idx_rem[i] = i * XDIM;
+ blk_len[i] = SUB_XDIM;
+ }
#ifdef ABSOLUTE
- MPI_Type_hindexed(SUB_YDIM, blk_len, idx_loc, MPI_DOUBLE, &src_type);
+ MPI_Type_hindexed(SUB_YDIM, blk_len, idx_loc, MPI_DOUBLE, &src_type);
#else
- MPI_Type_indexed(SUB_YDIM, blk_len, idx_rem, MPI_DOUBLE, &src_type);
+ MPI_Type_indexed(SUB_YDIM, blk_len, idx_rem, MPI_DOUBLE, &src_type);
#endif
- MPI_Type_indexed(SUB_YDIM, blk_len, idx_rem, MPI_DOUBLE, &dst_type);
+ MPI_Type_indexed(SUB_YDIM, blk_len, idx_rem, MPI_DOUBLE, &dst_type);
- MPI_Type_commit(&src_type);
- MPI_Type_commit(&dst_type);
+ MPI_Type_commit(&src_type);
+ MPI_Type_commit(&dst_type);
- MPI_Win_lock(MPI_LOCK_EXCLUSIVE, peer, 0, buf_win);
+ MPI_Win_lock(MPI_LOCK_EXCLUSIVE, peer, 0, buf_win);
#ifdef ABSOLUTE
- MPI_Accumulate(MPI_BOTTOM, 1, src_type, peer, 0, 1, dst_type, MPI_SUM, buf_win);
+ MPI_Accumulate(MPI_BOTTOM, 1, src_type, peer, 0, 1, dst_type, MPI_SUM, buf_win);
#else
- MPI_Accumulate(src_buf, 1, src_type, peer, 0, 1, dst_type, MPI_SUM, buf_win);
+ MPI_Accumulate(src_buf, 1, src_type, peer, 0, 1, dst_type, MPI_SUM, buf_win);
#endif
- MPI_Win_unlock(peer, buf_win);
+ MPI_Win_unlock(peer, buf_win);
- MPI_Type_free(&src_type);
- MPI_Type_free(&dst_type);
+ MPI_Type_free(&src_type);
+ MPI_Type_free(&dst_type);
}
MPI_Barrier(MPI_COMM_WORLD);
MPI_Win_lock(MPI_LOCK_EXCLUSIVE, rank, 0, buf_win);
errors = 0;
for (i = 0; i < SUB_XDIM; i++) {
- for (j = 0; j < SUB_YDIM; j++) {
- const double actual = *(win_buf + i + j*XDIM);
- const double expected = -1.0 + (1.0 + ((rank+nranks-1)%nranks)) * (ITERATIONS);
- if (fabs(actual - expected) > 1.0e-10) {
- SQUELCH( printf("%d: Data validation failed at [%d, %d] expected=%f actual=%f\n",
- rank, j, i, expected, actual); );
- errors++;
- fflush(stdout);
+ for (j = 0; j < SUB_YDIM; j++) {
+ const double actual = *(win_buf + i + j * XDIM);
+ const double expected = -1.0 + (1.0 + ((rank + nranks - 1) % nranks)) * (ITERATIONS);
+ if (fabs(actual - expected) > 1.0e-10) {
+ SQUELCH(printf("%d: Data validation failed at [%d, %d] expected=%f actual=%f\n",
+ rank, j, i, expected, actual););
+ errors++;
+ fflush(stdout);
+ }
}
- }
}
for (i = SUB_XDIM; i < XDIM; i++) {
- for (j = 0; j < SUB_YDIM; j++) {
- const double actual = *(win_buf + i + j*XDIM);
- const double expected = -1.0;
- if (fabs(actual - expected) > 1.0e-10) {
- SQUELCH( printf("%d: Data validation failed at [%d, %d] expected=%f actual=%f\n",
- rank, j, i, expected, actual); );
- errors++;
- fflush(stdout);
+ for (j = 0; j < SUB_YDIM; j++) {
+ const double actual = *(win_buf + i + j * XDIM);
+ const double expected = -1.0;
+ if (fabs(actual - expected) > 1.0e-10) {
+ SQUELCH(printf("%d: Data validation failed at [%d, %d] expected=%f actual=%f\n",
+ rank, j, i, expected, actual););
+ errors++;
+ fflush(stdout);
+ }
}
- }
}
for (i = 0; i < XDIM; i++) {
- for (j = SUB_YDIM; j < YDIM; j++) {
- const double actual = *(win_buf + i + j*XDIM);
- const double expected = -1.0;
- if (fabs(actual - expected) > 1.0e-10) {
- SQUELCH( printf("%d: Data validation failed at [%d, %d] expected=%f actual=%f\n",
- rank, j, i, expected, actual); );
- errors++;
- fflush(stdout);
+ for (j = SUB_YDIM; j < YDIM; j++) {
+ const double actual = *(win_buf + i + j * XDIM);
+ const double expected = -1.0;
+ if (fabs(actual - expected) > 1.0e-10) {
+ SQUELCH(printf("%d: Data validation failed at [%d, %d] expected=%f actual=%f\n",
+ rank, j, i, expected, actual););
+ errors++;
+ fflush(stdout);
+ }
}
- }
}
MPI_Win_unlock(rank, buf_win);
MPI_Free_mem(win_buf);
MPI_Free_mem(src_buf);
- MTest_Finalize( errors );
+ MTest_Finalize(errors);
MPI_Finalize();
- return MTestReturnValue( errors );
+ return MTestReturnValue(errors);
}
