From 424316112454f3a9d27344874ece40f5ed433d70 Mon Sep 17 00:00:00 2001
From: Vicente Adolfo Bolea Sanchez <vicente.bolea@kitware.com>
Date: Mon, 4 Sep 2023 16:46:49 -0400
Subject: [PATCH] MPI: Add mpi_init_thread in test

---
 testing/adios2/engine/staging-common/TestOnDemandMPI.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testing/adios2/engine/staging-common/TestOnDemandMPI.cpp b/testing/adios2/engine/staging-common/TestOnDemandMPI.cpp
index 83c8c6efc3..3f88da6ead 100644
--- a/testing/adios2/engine/staging-common/TestOnDemandMPI.cpp
+++ b/testing/adios2/engine/staging-common/TestOnDemandMPI.cpp
@@ -139,7 +139,7 @@ TEST_F(TestOnDemandMPI, ADIOS2OnDemandMPI)
 
 int main(int argc, char **argv)
 {
-    MPI_Init(nullptr, nullptr);
+    MPI_Init_thread(NULL, NULL, MPI_THREAD_MULTIPLE, NULL);
 
     int result;
     ::testing::InitGoogleTest(&argc, argv);