From da71981c2747f50fc9db495993504b3d5cab7c73 Mon Sep 17 00:00:00 2001
From: degomme <augustin.degomme@unibas.ch>
Date: Tue, 18 Oct 2016 17:19:21 +0200
Subject: [PATCH] Add a check so that process_init exits cleanly when
 improperly called.

---
 src/smpi/smpi_global.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/smpi/smpi_global.cpp b/src/smpi/smpi_global.cpp
index 72a89925a0..a804bcb990 100644
--- a/src/smpi/smpi_global.cpp
+++ b/src/smpi/smpi_global.cpp
@@ -99,6 +99,10 @@ static char *get_mailbox_name_small(char *str, int index)
 void smpi_process_init(int *argc, char ***argv)
 {
 
+  if (process_data == nullptr){
+    printf("SimGrid was not initialized properly before entering MPI_Init. Aborting, please check compilation process and use smpirun\n");
+    exit(1);
+  }
   if (argc != nullptr && argv != nullptr) {
     smx_actor_t proc = SIMIX_process_self();
     proc->context->set_cleanup(&MSG_process_cleanup_from_SIMIX);
-- 
2.20.1