CCL: NWChem Running in Parallel



Sent to CCL by: psavita [psavita- -crlindia.com]
Hello,

I am not familiar with the PBS system, we use LSF.
However, often the problem is with the availability of
.nwchemrc file in the $HOME folder that specifies
paths to different force field and basis set libraries.
The INSTALL instructions include contents of the file.

Best luck,

Savita Pundlik
Computational Materials Applied Research Group
Computational Research Laboratories Ltd.,
Taco House, Damle Path, Off Law College Road
Pune - 411004, India.



-----owner-chemistry+psavita==crlindia.com,+,ccl.net wrote: -----

To: "Pundlik, Savita Sunil " <psavita,+,crlindia.com>
From: "Joaquin Calbo HimPhoenixCCL- -gmail.com" <owner-chemistry,+,ccl.net>
Sent by: owner-chemistry+psavita==crlindia.com,+,ccl.net
Date: 10/18/2011 03:01PM
Subject: CCL: NWChem Running in Parallel


Sent to CCL by: "Joaquin  Calbo" [HimPhoenixCCL---gmail.com]
Hello everybody,

I'm very interested in running NWChem in parallel. However an error occurs when try to do that type of jobs (single processor jobs run correclty). As I've read I put in my shuttle the next command:

/soft/nwchem_6_0/bin/parallel /soft/newchem_6_0/bin/nwchem $PBS_O_WORKDIR/$name.nw >& $PBS_O_WORKDIR/$name.out

in addition to the line #PBS -l nodes=MACHINE:ppn=8

The error it sends back to me in the .out file is:

Master: PROCGRP = PROCGRP
tmp = /home/USER/pdir//soft/newchem_6_0/bin/nwchem.p
0: Master: failed to open PROCGRP 0 (0).
0: Master: failed to open PROCGRP 0 (0).
system error message: No such file or directory

Must I include some extra information in the .nw input file about the number of processors to use or define an environmental variable? Or is it an external problem of the software compilation?

Any suggestion would be really appreciate,
Thanks in advance.

Joaquin



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