[Tgcmgroup] reading /hao files from blueice

Ben Foster foster at hao.ucar.edu
Fri Jul 13 13:35:12 MDT 2007


tgcmgroup:

This problem, reported June 22 (see below), has been resolved 
by replacement of a faulty hardware module in a networking device 
on blueice. Now blueice has no problem reading files that reside 
on the /hao disk.

--Ben



------------- Begin Forwarded Message -------------

>From foster at hao.ucar.edu  Fri Jun 22 15:31:35 2007
From: foster at hao.ucar.edu (Ben Foster)
Date: Fri Jun 22 15:31:37 2007
Subject: [Tgcmgroup] reading nc files on blueice
Message-ID: <200706222131.l5MLVZM28914 at jabba.hao.ucar.edu>


Hi tgcmgroup:

We have identified a hopefully temporary problem reading files
on the /hao disk at CISL from /ptmp on blueice. This occurs if you
specify an nc file on $TGCMROOT in the namelist read input file,
for example:

SOURCE = '/hao/tgcm/data/xyz.nc'

Even when this file exists, the model may hang during execution
after opening this file. The program finds the file and opens it,
but then it hangs on the first read until it times out or is killed.
 
The workaround on blueice is to simply copy or soft-link the file 
from /hao to /ptmp (e.g., to your working or exec directories), and 
read it there (e.g., SOURCE='/ptmp/.../xyz.nc', or SOURCE='xyz.nc'
if you copied to exec dir).

Again, this is on blueice only, and assumes the model is being run
from a /ptmp directory.  Everthing works fine on bluevista.
This problem has been reported to the network people at CISL, so
hopefully it will be fixed in the near future.

--Ben 


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Ben Foster		      	High Altitude Observatory (HAO)
foster at ucar.edu			phone: 303-497-1595  fax: 303-497-1589  
Nat. Center for Atmos. Res.     P.O. Box 3000 Boulder CO 80307 USA
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Ben Foster		      	High Altitude Observatory (HAO)
foster at ucar.edu			phone: 303-497-1595  fax: 303-497-1589  
Nat. Center for Atmos. Res.     P.O. Box 3000 Boulder CO 80307 USA
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