[torqueusers] Fluent Job submission

I.Kureshi U0850037 U0850037 at hud.ac.uk
Thu Mar 11 03:30:03 MST 2010


Hi all,

I am a system admin at a UK university and we got a request to provide an HPC resource for fluent.

After installing Fluent on one of Our Cluster which is running CENTOS5.4 with OSCAR5.1b2 and is of the architecture nodes=16 plus a head node we were successfully able to start fluent via the terminal and submit parallel jobs through the shell with a journal file and the -g switch. The University has 45 licenses for Fluent 6.3.26 and 30 licenses for an older version 6.0/2?? (not sure which). These licenses reside on a windows server with flexlm running on it. We have floating licenses for many softwares on that machine.

When I try to submit a job through the job scheduler Torque/MAUI the simulations do not run as there is a license problem, even though it seems to be looking in the right place.

I have posted this on a FLUENT based forum as well but I thought since it seems to be  case of the environment variables created by TORQUE users here might be better help.

I would appreciate any help regarding this. Below are the submission script, the journal file, the output file and the error file respectively.

The job was submitted using qsub fluent.job
______________________________
Submission Script
______________________________
#!/bin/bash
#PBS -S /bin/bash
#PBS -m e
#PBS -M sengik at hud.ac.uk
#PBS -N fluent
#PBS -l nodes=3
#
#PBS -e stderr
#PBS -o stdout
#
#PBS -V
#
fluent 2d -g -ssh -t3 -i /home/sengik/Desktop/test/input.in
______________________________
Journal File
______________________________
file/read-case /home/sengik/Desktop/test/2dcar_10.cas
solve/initialize/initialize-flow
file/write-data /home/sengik/Desktop/test/2dcar_10.dat
exit
yes
#as you can see just a simple case of load initialise save and exit

______________________________
Output File
______________________________

/usr/Fluent.Inc/fluent6.3.26/bin/fluent -r6.3.26 2d -g -ssh -t3 -i /home/sengik/Desktop/test/input.in
Loading "/usr/Fluent.Inc/fluent6.3.26/lib/fluent.dmp.114-32"
Done.
/usr/Fluent.Inc/fluent6.3.26/bin/fluent -r6.3.26 2d -pethernet -host -alnx86 -t3 -mpi=hp -path/usr/Fluent.Inc -ssh -cx node16.testbed-CLS:56711:56126

Server node is down or not responding
See the system adminstrator about starting the server, or
make sure the you're referring to the right host (see LM_LICENSE_FILE)
Feature: fluent
Hostname: mech1
License path: 7241 at mech1:/usr/Fluent.Inc/license/lnx86/../license.dat
FLEXlm error: -96,7. System Error: 11 "Resource temporarily unavailable"
For further information, refer to the FLEXlm End User Manual,
available at "www.macrovision.com".

______________________________
Error File
______________________________
/usr/Fluent.Inc/fluent6.3.26/bin/fluent: line 2397: glxinfo: command not found
/usr/Fluent.Inc/fluent6.3.26/cortex/lnx86/cortex.3.7.3 -f fluent -g -i /home/sengik/Desktop/test/input.in (fluent "2d -pethernet -host -alnx86 -r6.3.26 -t3 -mpi=hp -path/usr/Fluent.Inc -ssh")
Starting /usr/Fluent.Inc/fluent6.3.26/lnx86/2d_host/fluent.6.3.26 host -cx node16.testbed-CLS:56711:56126 "(list (rpsetvar (QUOTE parallel/function) "fluent 2d -node -alnx86 -r6.3.26 -t3 -pethernet -mpi=hp -ssh") (rpsetvar (QUOTE parallel/rhost) "") (rpsetvar (QUOTE parallel/ruser) "") (rpsetvar (QUOTE parallel/nprocs_string) "3") (rpsetvar (QUOTE parallel/auto-spawn?) #t) (rpsetvar (QUOTE parallel/trace-level) 0) (rpsetvar (QUOTE parallel/remote-shell) 1) (rpsetvar (QUOTE parallel/path) "/usr/Fluent.Inc") (rpsetvar (QUOTE parallel/hostsfile) "") )"

Welcome to Fluent 6.3.26

Copyright 2006 Fluent Inc.
All Rights Reserved

Loading "/usr/Fluent.Inc/fluent6.3.26/lib/flprim.dmp.1119-32"
Done.

Unexpected license problem; exiting.

______________________________________

The simple line:
fluent 2d -g -ssh -t3 -cnf=<hostfile> -i /home/sengik/Desktop/test/input.in
works perfectly fine.

EDIT: TORQUE allocates the nodes correctly and is working fine. the simulation just ends when the license error occurs.


Thanks in advance for the help


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