Commit ab0f1afc authored by Matthieu Schaller's avatar Matthieu Schaller
Browse files

Added some limited hints about OpenMPI from the GADI system

parent 8ff008f9
......@@ -35,3 +35,16 @@ using the asynchronous progression settings:
## OpenMPI
_Open MPI_ comes in many flavours with many combinations of underlying
transport libraries and running on many different fabrics. A complete
description of all combinations is beyond the scope of this guide.
On Mellanox hardware, we have had success running version 4.0 with the
UCX layer version 1.6 and using the following settings:
-mca coll_hcoll_enable 0
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