From 4215af69a27c4fb3e11f69787d6d792c4d5dadef Mon Sep 17 00:00:00 2001
From: Tim Wickberg <tim@schedmd.com>
Date: Thu, 7 Sep 2017 17:00:32 -0600
Subject: [PATCH] Add note about setting PMI_MMAP_SYNC_WAIT_TIME on Cray
 systems.

Bug 3921.
---
 doc/html/cray.shtml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/doc/html/cray.shtml b/doc/html/cray.shtml
index 05f09c6531e..34979f8266d 100644
--- a/doc/html/cray.shtml
+++ b/doc/html/cray.shtml
@@ -193,7 +193,12 @@ details.</p>
   listed in this file it can be used to set up your Cray system to run
   Slurm natively.
 </p>
-
+<p>
+  On larger systems, you may wish to set the PMI_MMAP_SYNC_WAIT_TIME
+  environment variable in your users' profiles to a larger value than
+  the default (180 seconds) to prevent PMI from falsely detecting job
+  launch failures.
+</p>
 <h2><a name="ha">High Availability</a></h2>
 <p>
 A backup controller can be setup in or outside the Cray. However, when the
-- 
GitLab