Select node when data mode is Redux

mpi/src/starpu_mpi_task_insert.c

@@ -54,7 +54,7 @@ int starpu_mpi_pre_submit_hook_unregister()
 
 int _starpu_mpi_find_executee_node(starpu_data_handle_t data, enum starpu_data_access_mode mode, int me, int *do_execute, int *inconsistent_execute, int *xrank)
 {
-	if (mode & STARPU_W)
+	if (mode & STARPU_W || mode & STARPU_REDUX)
 	{
 		if (!data)
 		{