From ab1e1c4a93ebaf5a25ee1656c12ea94756097c6c Mon Sep 17 00:00:00 2001
From: David Bigagli <david@schedmd.com>
Date: Tue, 18 Jun 2013 10:36:02 -0700
Subject: [PATCH] Updated the PMI2 documentation and RELEASE_NOTES.
---
RELEASE_NOTES | 2 ++
doc/html/mpi_guide.shtml | 9 ++++++++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/RELEASE_NOTES b/RELEASE_NOTES
index 433031ce881..56bc41fa6b9 100644
--- a/RELEASE_NOTES
+++ b/RELEASE_NOTES
@@ -112,6 +112,8 @@ COMMAND CHANGES (see man pages for details)
OTHER CHANGES
=============
+ - Added PMI2 client library. Refere to the documentation here:
+ http://slurm.schedmd.com/mpi_guide.html#mpich2
- Added SLURM_SUBMIT_HOST to salloc, sbatch and srun job environment.
- Added SLURM_ARRAY_TASK_ID and SLURM_ARRAY_TASK_ID to environment of job
array.
diff --git a/doc/html/mpi_guide.shtml b/doc/html/mpi_guide.shtml
index 0edc6b8762f..4fc550fc608 100644
--- a/doc/html/mpi_guide.shtml
+++ b/doc/html/mpi_guide.shtml
@@ -290,7 +290,6 @@ in the example below below.</p>
srun -n4 --mpi=pmi2 ./a.out
</pre>
-<b>Note:</b>
<p>
The PMI2 support in SLURM works only if the MPI implementation supports it, in other words if the MPI has
the PMI2 interface implemented. The <i>--mpi=pmi2</i> will load the library <i>lib/slurm/mpi_pmi2.so</i>
@@ -302,6 +301,14 @@ You can refere yourself to <i>mpich2-1.5</i> implementation and configure MPICH
<p>
To check if the MPI version you are using supports PMI2 check for PMI2_* symbols in the MPI library.
+<p>
+SLURM provides a version of the PMI2 client library in the contribs directory. This library gets
+installed in the SLURM lib directory. If your MPI implementation supports PMI2 and you wish to use
+the SLURM provided library you have to link the SLURM provided library explicitly:
+<pre>
+$ mpicc -L<path_to_pim2_lib> -lpmi2 ...
+$ srun -n20 a.out
+</pre>
<hr size=4 width="100%">
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