Are the working directories filled with a lot of smaller fasta files?
I'm thinking that it is a performance issue with the MDC.
-P
On Feb 6, 2006, at 8:16 AM, Christopher Dwan wrote:
Is the working directory on san disk mounted via NFS?
Yup. Both the working directory and the home directories live in a
San which is mounted on the compute nodes via NFS.
Linux clients?
All of these systems are OS X, Tiger.
-Chris Dwan
On Feb 6, 2006, at 7:25 AM, Christopher Dwan wrote:
First, thank you very much to the community for all the helpful
information on Friday.
I'm now encountering an intermittent error with one of our
applications (mpiblast). It's integrated with the cluster
scheduler (SGE), and all of the directories involved are XSan
volumes re-exported via NFS to the compute nodes.
Sometimes, jobs will fail because they cannot find their startup
directory:
Can't start from current directory: No such file or directory
sh: -c: line 1: unexpected EOF while looking for matching `''
sh: -c: line 4: syntax error: unexpected end of file
This persists even if I insert "sleep" or "while (!(-e /the/
appropriate/directory)) {sleep;}}" in my submission script. In
fact, I can pause the job and log in to check whether the
directory exists is mounted on the compute node, and it *is*.
This is, however, intermittent. Sometimes jobs work fine.
Occasionally, I will have a job work, but I get these in the STDERR:
shell-init: could not get current directory: getcwd: cannot
access parent directories: No such file or directory.
Other jobs work fine. It's only when a single parallel job tries
to start on many of the cluster nodes at the same time that it
*sometimes* can't find its startup directory (or the home
directory of the submitting user).
Any advice or insight would be appreciated.
-Chris Dwan
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