From e583e4848a8935890ddcbab93d5c4bb784d73ce1 Mon Sep 17 00:00:00 2001 From: Howard Pritchard Date: Fri, 15 Dec 2023 08:31:05 -0700 Subject: [PATCH] docs: refine wording related to HPE CXI provider Signed-off-by: Howard Pritchard --- docs/tuning-apps/networking/ofi.rst | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/docs/tuning-apps/networking/ofi.rst b/docs/tuning-apps/networking/ofi.rst index 8086e9d7aa3..4e3e1387ce0 100644 --- a/docs/tuning-apps/networking/ofi.rst +++ b/docs/tuning-apps/networking/ofi.rst @@ -79,9 +79,10 @@ list. For example: shell$ ompi_info --param mtl ofi --level 9 .. important:: When using the HPE CXI provider and ``mpirun`` as the job launcher, - the PRTE ``ras_base_launch_orted_on_hn`` MCA parameter must be set to 1. + it is recommended that the PRTE ``ras_base_launch_orted_on_hn`` MCA parameter be set to 1. This can be done by adding ``--prtemca ras_base_launch_orted_on_hn 1`` to the job launch - command line. + command line. This ensures that MPI processes launched on the first node of + an allocation are able to use the CXI provider. For more information refer to the `Libfabric web site `_.