1 files changed, 8 insertions, 0 deletions
diff --git a/testpar/t_cache.c b/testpar/t_cache.c
index 066e763..3c626d3 100644
--- a/testpar/t_cache.c
+++ b/testpar/t_cache.c
@@ -7236,6 +7236,14 @@ main(int argc, char **argv)
     world_server_mpi_rank = mpi_size - 1;
     world_mpi_comm = MPI_COMM_WORLD;
 
+    /* Attempt to turn off atexit post processing so that in case errors
+     * happen during the test and the process is aborted, it will not get
+     * hang in the atexit post processing in which it may try to make MPI
+     * calls.  By then, MPI calls may not work.
+     */
+    if (H5dont_atexit() < 0){
+	printf("Failed to turn off atexit processing. Continue.\n", mpi_rank);
+    };
     H5open();
 
     express_test = do_express_test();