We get these warnings/error from OpenMPI, version 3.1.4 and 4.0.2
--------------------------------------------------------------------------
WARNING: No preset parameters were found for the device that Open MPI
detected:
Local host: gl3080
Device name: mlx5_0
Device vendor ID: 0x02c9
Device vendor part ID: 4123
Default device parameters will be used, which may result in lower
performance. You can edit any of the files specified by the
btl_openib_device_param_files MCA parameter to set values for your
device.
NOTE: You can turn off this warning by setting the MCA parameter
btl_openib_warn_no_device_params_found to 0.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
WARNING: There was an error initializing an OpenFabrics device.
Local host: gl3080
Local device: mlx5_0
--------------------------------------------------------------------------
Does anyone know how I can find the parameters that should be set in
$PREFIX/etc/btl_openib_device_param.conf or other OpenMPI
configuration files so that those warnings do not occur?
How might I find the cause of the initialization error?
Sorry for the ignorance behind this question.
