Subject: Re: restart and init files running on IBM SP2
From: Keith Eric Grant (keg@llnl.gov)
Date: Mon Feb 14 2000 - 22:29:52 MST
John Chiang wrote:
>
> I'm testing CCM3 on the IBM SP2 (RS6000), and up to 8 processors so
> far. I've encountered a problem when running cases with monthly mean
> output. After writing out the first monthly mean file and the land
> restart and init files successfully, it fails to write out the
> atmosphere restart and initialization files (the ones starting with
> the headers ccmr_ and ccmi_ respectively), and the run fails to
> proceed further. I've checked for disk space, and that was not the
> problem.
>
> I'm wondering if any of you encountered this too, and what you did to
> correct. When I switch off writing the init and restart files
> (i.e. setting nrefrq = 0 and inithist = 'NONE') the problem goes away,
> and the model runs to completion.
>
John,
Rather than repost something yet again that I've already posted twice about,
please look in the mailing list archives at
http://www.cgd.ucar.edu/cms/ccm3/ccm-users/hypermail/0367.html for a message
I posted Aug 12, 1999 under the title Re: creating output files on an
ORIGIN2000. The problem is not specific to an SP2 (although that's where I
first encountered it) but comes about using MPI with auxiliary files.
...Keith Grant
-- +-----------------------------+-------------------------------------------+ I Keith Eric Grant I Common sense and a sense of humor are the I I I same thing, moving at different speeds. I I Atmospheric Science Div I A sense of humor is just common sense, I I P.O. Box 808, L-103 I dancing. ... Clive James I I Lawrence Livrmr Natn'l Lab I I I EMail: keg@llnl.gov I (or perhaps dancing is just common sense) I I FAX: (925) 422-5844 I I +-----------------------------+-------------------------------------------+
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