I upgraded my open-mpi version to 4.00 on a Cray Aries cluster (GNI/uGNI).
Every time I run mpi, I get the following warning. Is there any way to
suppress this message? I am not seeing this in 3.1.3 version of open-mpi.
Any idea why openfabrics device is getting initialized when cray GNI
transport is actively used? (i.e. looks like it is related to UCX, but I
assume this could potentially be a configuration issue even though GNI
transport/btl seems to get detected correctly and works by default without
any explicit --mca parameters)

By default, for Open MPI 4.0 and later, infiniband ports on a device

are not used by default.  The intent is to use UCX for these devices.

You can override this policy by setting the btl_openib_allow_ib MCA

to true.

  Local host:              nid00301

  Local adapter:           ibgni

  Local port:              1



WARNING: There was an error initializing an OpenFabrics device.

  Local host:   nid00300

  Local device: ibgni

... [program output]

... [program output]


[login1:02032] 3 more processes have sent help message
help-mpi-btl-openib.txt / ib port not selected

[login1:02032] Set MCA parameter "orte_base_help_aggregate" to 0 to see all
help / error messages

[login1:02032] 3 more processes have sent help message
help-mpi-btl-openib.txt / error in device init

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