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RE: shell script variable substitution and dplace

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shell script variable substitution and dplace
Answer
7/4/12 5:48 PM
Hi,

I've just introduced dplace into my batch job, a tcsh script, and am seeing a problem. Here is the fragment of the script which spawns a veePSC instance. Note that veePSC reads from the standard input and sends its standard output to the null device:
dplace -n veePSC -c -d ${iCPU} ./veePSC < ${Subject}_${Session}/P/${LOC}_${j}.pro >& /dev/null &
and here is the corresponding output to the .o file:
[1] 3759321
[1] Exit 1
dplace -n veePSC -c -d 6./veePSC < ${Subject}_${Session}/P/${LOC}_${j}.pro >& ...

Notice that variable iCPU is expanded to "6" but the other variables are not expanded, i.e. Subject, Session, LOC, and j. So this instance of veePSC fails to find its input file. An earlier version of this batch script uses this more complex command without error on Blacklight at the Pittsburgh Supercomputing Center:
echo "pf; ${Subject}_${Session}/P/${LOC}_${j}.pro; ex;" | tr ";" "\n" | tr -d " " | ./veePSC >& /dev/null &

I've attached the script. You can find the code at line #211 .

Your thoughts would be welcome.

Don

Don Krieger, Ph.D.
Department of Neurological Surgery
University of Pittsburgh
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RE: shell script variable substitution and dplace
Answer
7/5/12 8:28 PM as a reply to Donald Nathan Krieger.
Dr. Krieger,

I understand that this question has been answered by PSC consultants. Should you have any other problems, please let us know.

Tom Maiden,
XSEDE User Services
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