From: Augustin Degomme <adegomme@users.noreply.github.com>
Date: Thu, 30 Sep 2021 16:40:16 +0000 (+0200)
Subject: MC does not like mutexes, so disable the barrier for it.
X-Git-Tag: v3.29~26
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/59813851f71d1ecdd1bd22b092274f9fd9086cb0

MC does not like mutexes, so disable the barrier for it.
Not ideal, obviously.
---

diff --git a/src/smpi/internals/smpi_global.cpp b/src/smpi/internals/smpi_global.cpp
index 491428a0fb..9e48edc6d4 100644
--- a/src/smpi/internals/smpi_global.cpp
+++ b/src/smpi/internals/smpi_global.cpp
@@ -635,7 +635,9 @@ void smpi_mpi_init() {
   smpi_init_fortran_types();
   if(_smpi_init_sleep > 0)
     simgrid::s4u::this_actor::sleep_for(_smpi_init_sleep);
-  smpi_deployment_startup_barrier(smpi_process()->get_instance_id());
+  if (not MC_is_active()) {
+    smpi_deployment_startup_barrier(smpi_process()->get_instance_id());
+  }
 }
 
 void SMPI_thread_create() {