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From: Brian W. Barrett (bbarrett_at_[hidden])
Date: 2006-11-01 20:27:35


The issue is that openpty() is failing on the machine. I think /dev/ptmx
and /dev/pts have to exist for pty support to work properly. We're having
the same issue on Coyote, but not on Pink and Flash. As far as I can
tell, those are the files / directories that are on the working systems
but not coyote.

Brian

> I'm testing out a new OpenMPI 1.1.2 build on a machine here at LANL
> and get the following at launch:
>
> % mpirun -np 4 IMB-MPI1
> [n254:07650] pls_bproc_orted: openpty failed, using pipes instead
> [n255:07651] pls_bproc_orted: openpty failed, using pipes instead
> [n254:07650] pls_bproc_orted: openpty failed, using pipes instead
> .
> .
> .
>
>
> The code then runs fine with no other errors.
>
> What is the meaning of those 3 lines?
>
> -david
> --
> David Gunter
> HPC-4: HPC Environments: Parallel Tools Team
> Los Alamos National Laboratory
>
>
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