From fc36854fce10377e0d4e429d5a94c7e344e564d3 Mon Sep 17 00:00:00 2001

From: Michal Schmidt <mschmidt@redhat.com>

Date: Thu, 3 Sep 2015 17:24:28 +0200

Subject: [PATCH] openmpi-mca-params.conf: disable psm2 MTL by default

Workaround for:

https://bugzilla.redhat.com/show_bug.cgi?id=1259835

---

 opal/etc/openmpi-mca-params.conf | 10 ++++++++++

 1 file changed, 10 insertions(+)

diff --git a/opal/etc/openmpi-mca-params.conf b/opal/etc/openmpi-mca-params.conf

index 7a1f92367a..36f5bcd833 100644

--- a/opal/etc/openmpi-mca-params.conf

+++ b/opal/etc/openmpi-mca-params.conf

@@ -56,3 +56,13 @@

 # See "ompi_info --param all all" for a full listing of Open MPI MCA

 # parameters available and their default values.

+

+# Disable the psm2 MTL by default.

+# Workaround for https://bugzilla.redhat.com/show_bug.cgi?id=1259835

+# This avoids a conflict between libpsm2.so.2 and libpsm_infinipath.so.1.

+mtl = ^psm2

+# If psm2 is needed, comment out the above line and uncomment

+# the following two lines. This will disable MCAs that are known to

+# depend on libpsm_infinipath.so.1:

+#   mtl = ^psm,ofi

+#   btl = ^usnic

-- 

2.4.3