From 6520802b99fc545745d445f1ddd0ce655aa30a9b Mon Sep 17 00:00:00 2001
From: Shane Snyder <ssnyder@mcs.anl.gov>
Date: Mon, 8 Jun 2020 14:17:20 -0500
Subject: [PATCH] properly use runtime checks when not using MPI

Fixes #281
---
 darshan-runtime/lib/darshan-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/darshan-runtime/lib/darshan-core.c b/darshan-runtime/lib/darshan-core.c
index 64fd803..9d35682 100644
--- a/darshan-runtime/lib/darshan-core.c
+++ b/darshan-runtime/lib/darshan-core.c
@@ -2036,7 +2036,8 @@ static void darshan_core_cleanup(struct darshan_core_runtime* core)
 #endif
 
 #ifdef HAVE_MPI
-    PMPI_Comm_free(&core->mpi_comm);
+    if(using_mpi)
+        PMPI_Comm_free(&core->mpi_comm);
 #endif
 
     if(core->comp_buf)
-- 
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