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Subject: Re: [OMPI users] exporting PATH ineffective for finding MPI
From: Ralph Castain (rhc_at_[hidden])
Date: 2014-03-14 20:42:32


Why not skip some of these problems and configure OMPI --enable-orterun-prefix-by-default?

On Mar 14, 2014, at 5:14 PM, Ross Boylan <ross_at_[hidden]> wrote:

> I used this script to launch mpi:
>
> R_PROFILE_USER=~/KHC/sunbelt/Rmpiprofile LD_LIBRARY_PATH=/home/ross/install/lib:$LD_LIBRARY_PATH PATH=/home/ross/install/bin:/home/ross/install/lib64/R/bin:$PATH orterun -x R_PROFILE_USER -x LD_LIBRARY_PATH \
> -x PATH -hostfile ~/KHC/sunbelt/hosts -np 18 R --no-save -q
>
> For each remote node I get a message like
> [n11:07642] Error: unknown option "--tree-spawn"
>
> According to previous exchanges on this list that is a sign that the remote nodes are picking up the old system version of MPI instead of my new local one. Apparently the PATH values I exported are not used; presumably it's the same for LD_LIBRARY_PATH.
>
> I found this surprising.
>
> RTFM disclosed the --prefix argument to orterun, and that seems to do the trick.
>
> Am I missing anything?
>
> Ross Boylan
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