--- /dev/null
+/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
+/*
+ * (C) 2001 by Argonne National Laboratory.
+ * See COPYRIGHT in top-level directory.
+ */
+
+/** Contended RMA put test -- James Dinan <dinan@mcs.anl.gov>
+ *
+ * Each process issues COUNT put operations to non-overlapping locations on
+ * every other processs.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include "mpi.h"
+#include "mpitest.h"
+
+#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;
+
+ 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 < MAXELEMS; i++)
+ src_buf[i] = me + 1.0;
+
+ MPI_Win_lock(MPI_LOCK_EXCLUSIVE, me, 0, dst_win);
+
+ for (i = 0; i < nproc*MAXELEMS; i++)
+ dst_buf[i] = 0.0;
+
+ 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;
+}
+
+
+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 );
+ MPI_Finalize();
+ return MTestReturnValue( errs );
+}