[MPICH] problem running mpiexec in cron

[Rusty Lusk]

Your cron job is getting mpiexec out of a different path and picking the
mpiexec for LAM, not MPICH.

From: "David Fitzgerald" <David.Fitzgerald at millersville.edu>
Subject: [MPICH] problem running mpiexec in cron
Date: Fri, 9 Dec 2005 16:19:38 -0500

> Hello everyone, 
>  
> Forgive me if my problem is listed in a FAQ somewhere, or has an obvious
> fix, but I can't figure this out.
>  
> I am running MPICH2 on a Fedora Core 4 cluster.  I use a Perl script to
> run the WRF computer model with mpiexec.  The Perl script and subsequent
> WRF model runs fine from the command line, but when run from cron the
> mpiexec commands fail with this error:
>  
>  Lanmodes Failed!
> Check if you had booted lam before calling mpiexec else use -machinefile
> to pass hostfile to mpiexec.
>  
> The thing is, my nodes are all up, mpdtrace shows all the nodes
> correctly.  My environment variables are set in the perl script, but I
> can't figure out what I may be missing for mpiexec to bomb out in the
> cron.  
>  
> Can anyone help?
>  
> Thanks!
>  
> Dave
>  
> +++++++++++++++++++++++
> David Fitzgerald
> Department of Earth Sciences
> Millersville University
> Millersville Pa 17551
>  
> Phone: 717-871-2394
>  
>   
> I don't know half of you half as well as I should like; and I like less
> than half of you half as well as you deserve.
> J. R. R. Tolkien
> <http://www.quotationspage.com/quotes/J._R._R._Tolkien/> , The
> Fellowship of the Ring
>