X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/fc0a76c21f0bceb0314aee5d62f785ea8009495e..b382315f0693083344eb9a25a8fc37b7091bddc7:/teshsuite/smpi/mpich3-test/rma/req_example.c

diff --git a/teshsuite/smpi/mpich3-test/rma/req_example.c b/teshsuite/smpi/mpich3-test/rma/req_example.c
index 571325c8cc..93cd8da9fa 100644
--- a/teshsuite/smpi/mpich3-test/rma/req_example.c
+++ b/teshsuite/smpi/mpich3-test/rma/req_example.c
@@ -25,15 +25,16 @@
 /* Use a global variable to inhibit compiler optimizations in the compute
  * function. */
 double junk = 0.0;
-
-void compute(int step, double *data) {
+void compute(int step, double *data);
+void compute(int step, double *data)
+{
     int i;
 
     for (i = 0; i < N; i++)
         junk += data[i] * (double) step;
 }
 
-int main( int argc, char *argv[] )
+int main(int argc, char *argv[])
 {
     int i, rank, nproc;
     int errors = 0, all_errors = 0;
@@ -41,7 +42,8 @@ int main( int argc, char *argv[] )
     MPI_Request put_req[M] = { MPI_REQUEST_NULL };
     MPI_Request get_req;
     double *baseptr;
-    double data[M][N]; /* M buffers of length N */
+    double data[M][N];          /* M buffers of length N */
+    MPI_Info win_info;
 
     MPI_Init(&argc, &argv);
     MPI_Comm_rank(MPI_COMM_WORLD, &rank);
@@ -49,29 +51,36 @@ int main( int argc, char *argv[] )
 
     assert(M < NSTEPS);
 
-    MPI_Win_allocate(NSTEPS*N*sizeof(double), sizeof(double), MPI_INFO_NULL,
+    MPI_Info_create(&win_info);
+
+#ifdef USE_WIN_ALLOC_SHM
+    MPI_Info_set(win_info, (char*)"alloc_shm", (char*)"true");
+#else
+    MPI_Info_set(win_info, (char*)"alloc_shm", (char*)"false");
+#endif
+
+    MPI_Win_allocate(NSTEPS * N * sizeof(double), sizeof(double), win_info,
                      MPI_COMM_WORLD, &baseptr, &win);
 
     MPI_Win_lock_all(0, win);
 
     for (i = 0; i < NSTEPS; i++) {
-        int target = (rank+1) % nproc;
+        int target = (rank + 1) % nproc;
         int j;
 
         /* Find a free put request */
         if (i < M) {
             j = i;
-        } else {
+        }
+        else {
             MPI_Waitany(M, put_req, &j, MPI_STATUS_IGNORE);
         }
 
-        MPI_Rget(data[j], N, MPI_DOUBLE, target, i*N, N, MPI_DOUBLE, win,
-                 &get_req);
-        MPI_Wait(&get_req,MPI_STATUS_IGNORE);
+        MPI_Rget(data[j], N, MPI_DOUBLE, target, i * N, N, MPI_DOUBLE, win, &get_req);
+        MPI_Wait(&get_req, MPI_STATUS_IGNORE);
 
         compute(i, data[j]);
-        MPI_Rput(data[j], N, MPI_DOUBLE, target, i*N, N, MPI_DOUBLE, win,
-                 &put_req[j]);
+        MPI_Rput(data[j], N, MPI_DOUBLE, target, i * N, N, MPI_DOUBLE, win, &put_req[j]);
 
     }
 
@@ -80,6 +89,8 @@ int main( int argc, char *argv[] )
 
     MPI_Win_free(&win);
 
+    MPI_Info_free(&win_info);
+
     MPI_Reduce(&errors, &all_errors, 1, MPI_INT, MPI_SUM, 0, MPI_COMM_WORLD);
 
     if (rank == 0 && all_errors == 0)