From 17cd36cc9d550e34e411c7ae8286639a7b93b988 Mon Sep 17 00:00:00 2001
From: Henry Weller <http://openfoam.org>
Date: Fri, 7 Jul 2017 12:16:20 +0100
Subject: [PATCH] Allwmake: Enable threading in OpenMPI

Required for the new collated parallel IO using threading.
---
 Allwmake | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Allwmake b/Allwmake
index d805c31c..793823f7 100755
--- a/Allwmake
+++ b/Allwmake
@@ -95,6 +95,7 @@ OPENMPI)
             --prefix=$MPI_ARCH_PATH \
             --disable-orterun-prefix-by-default \
             --enable-shared --disable-static \
+            --enable-mpi-thread-multiple \
             --libdir=$MPI_ARCH_PATH/lib${WM_COMPILER_LIB_ARCH} \
             --enable-mpi-fortran=none \
             --disable-mpi-profile \