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January 21, 2015, 07:43 |
Using a cluster to solve CFX model
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#1 |
Member
Michelle
Join Date: Aug 2014
Posts: 92
Rep Power: 11 |
Hi I am really in need of help. I am in my last weeks of my thesis and i require a cluster to solve my simulation of a room with a ceiling fan. The computer now cant solve it, too little memory. But then I put it on a cluster at my school, took the definition file from the run of my simulation, so long if went until it stopped (1st iteration).
But after the cluster I only get a .dir file and a .out file. No res file is created, how can I solve this and have I maybe done something wrong with the definition file? I got a input file too from my school. Thanks for any help |
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January 21, 2015, 09:39 |
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#2 |
Senior Member
Lance
Join Date: Mar 2009
Posts: 669
Rep Power: 22 |
If you have problems with the simulation you should look at the .out file, what are the error messages?
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January 21, 2015, 15:01 |
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#3 |
Member
Michelle
Join Date: Aug 2014
Posts: 92
Rep Power: 11 |
I just get this all the time of all simulations, even a dummy simulation of a ANSYS program I made and solved on my computer.
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January 21, 2015, 16:39 |
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#4 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
There is no error messages in the out file so the problem does not appear to be in CFX. It looks like it was running fine. Have you run out of disk space? Or has something else (like a maximum job run time) killed the job? Or someone killed the job manually?
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January 21, 2015, 17:56 |
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#5 |
Member
Michelle
Join Date: Aug 2014
Posts: 92
Rep Power: 11 |
Hi ghorrocks,
I have no idea if someone canceled it. By the script file I got from my university is here, where the INPUT file is my name of the definition file. I realised this goes empty after the cluster runs it. #!/bin/sh #PBS -N CFX4CPU #PBS -l nodes=1pn=4 #PBS -l cput=1000:00:00 #PBS -r n #PBS -e CFX.err #PBS -o CFX.log #PBS -m abe #PBS -V #======================USER CONFIG BEGIN=================== ### OPTION_PROD=aa_r_cfd INPUT_FILE=flangeTSR3.def ### OUTPUT_FILE=output.log #======================USER CONFIG END===================== ### display the information echo The master node of this job is `hostname` echo The working directory is `echo $PBS_O_WORKDIR` echo This job runs on the following nodes: echo `cat $PBS_NODEFILE` echo The environment is `echo $PBS_ENVIRONMENT` source /etc/profile.d/modules.sh module load cfx/14.5 echo The master node of this job is `hostname` echo The working directory is `echo $PBS_O_WORKDIR` echo This job runs on the following nodes: echo `cat $PBS_NODEFILE` echo The environment is `echo $PBS_ENVIRONMENT` source /etc/profile.d/modules.sh module load cfx/14.5 NPROCS=`wc -l < $PBS_NODEFILE` ### change the folder cd $PBS_O_WORKDIR ### running the job echo "CFX Job starting" `date` echo "$PROG_CMD -double -def $INPUT_FILE" cfx5solve -double -def $I NPROCS=`wc -l < $PBS_NODEFILE` ### change the folder cd $PBS_O_WORKDIR ### running the job echo "CFX Job starting" `date` echo "$PROG_CMD -double -def $INPUT_FILE" cfx5solve -double -def $INPUT_FILE -part $NPROCS -par-local echo "Job ending" `date` |
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January 22, 2015, 02:22 |
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#6 |
Senior Member
Lance
Join Date: Mar 2009
Posts: 669
Rep Power: 22 |
You are running 1 node / 4 cores for 1000 hours? Are you sure that does not trigger something that will shut down your simulation? Try to reduce the time to 1 hour? Also, any information in CFX.err or CFX.log?
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January 22, 2015, 02:37 |
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#7 |
Member
Michelle
Join Date: Aug 2014
Posts: 92
Rep Power: 11 |
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