On Apr 13, 2010, at 9:03 AM, Gabriele Fatigati wrote:
> ompi_info --param btl tcp
Ah ha... this is revealing:
> MCA btl: parameter "btl" (current value: "^tcp", data source: file
> Default selection set of components for the btl framework (<none> means use all components that can be found)
It seems you have a config file /cineca/prod/opt/compilers/openmpi/1.3.3/intel--11.1--binary/etc/openmpi-mca-params.conf that is excluding the TCP BTL from being used.
This config file will even prevent the TCP BTL from being shown in ompi_info -- remember that ompi_info shows *current* values of MCA parameters. So you might want to do something like this:
ompi_info --mca btl "" --param btl tcp
That would override the "btl" MCA parameter in your config file, allow the BTL TCP to be loaded by ompi_info, and therefore show you all the BTL TCP params.
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