From cd1584ea705f14d706c45803181a84193d5f9314 Mon Sep 17 00:00:00 2001
From: ckutzne <ckutzne@gwdg.de>
Date: Fri, 19 Nov 2010 18:26:05 +0100
Subject: [PATCH] Fixed segv in gmx_pme_error when gromacs compiled with
 threads

---
 src/tools/gmx_pme_error.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/tools/gmx_pme_error.c b/src/tools/gmx_pme_error.c
index d2baf690a6..c0396989d6 100644
--- a/src/tools/gmx_pme_error.c
+++ b/src/tools/gmx_pme_error.c
@@ -1080,7 +1080,8 @@ int gmx_pme_error(int argc,char *argv[])
     cr = init_par(&argc,&argv);
     
 #ifdef GMX_MPI
-    MPI_Barrier(MPI_COMM_WORLD);
+    if (PAR(cr))
+        MPI_Barrier(MPI_COMM_WORLD);
 #endif
 
     if (MASTER(cr))
-- 
2.11.4.GIT