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We have an installation with both Mellanox and Qlogic IB adaptors (in
distinct islands), so I built open-mpi 1.4.3 with openib and psm
Now I've just read this in the OFED source, but I can't see any relevant
issue in the open-mpi tracker:
It is recommended to use the OpenMPI v1.5 development branch. Prior versions
of OpenMPI have an issue with support PSM network transports mixed with standard
Verbs transport (BTL openib). This prevents an OpenMPI installation with
network modules available for PSM and Verbs to work correctly on nodes with
no QLogic IB hardware. This has been fixed in the latest development branch
allowing a single OpenMPI installation to target IB hardware via PSM or Verbs
as well as alternate transports seamlessly.
Do I definitely need 1.5 (and is 1.5.3 good enough?) to have openib and
psm working correctly? Also what are the symptoms of it not working