commit 5dd04e6bf4db2384d436fa75731352e8f1c941c9
Author: François Trahay <francois.trahay@telecom-sudparis.eu>
Date:   Thu Aug 25 11:35:55 2022 +0200

    MPI: avoid multiple initialization

diff --git a/src/modules/mpi/mpi.c b/src/modules/mpi/mpi.c
index 6485b191..2742c4b4 100644
--- a/src/modules/mpi/mpi.c
+++ b/src/modules/mpi/mpi.c
@@ -475,6 +475,8 @@ void ezt_mpi_initialize_trace();
  * and set the trace filename.
  */
 void _mpi_init_generic() {
+  if(_mpi_init_called)
+    return;
 
   int ret __attribute__((__unused__));
 
