Scripts to run fluent in Linux cluster via windows

sanjaykummar2810 · September 19, 2018, 09:32

Hello all,
I am facing a problem while using linux cluster to run fluent via windows. In order to run fluent i have wrote two scripts,which you can see in the picture. when i try to run the job using qsub command `qsub fluent_example.job´
Then I got a message as my job has been submitted. But simulation did not start though no one is using the cluster at the moment.
when i have seen the output file i got error as $PBS_O_WORKDIR:undefined varible. Can anyone help me to resolve the error?

Thanks in advance

[ATTACH]65662

vesp · September 19, 2018, 09:44

well, neither did you define the variable in question nor does it seem to be an exported (i.e. globally available) variable.
So go ahead and set it manually to the directory from which you want to execute from.

sanjaykummar2810 · September 19, 2018, 10:02

Hi Vesp,

The specified location below the $PBS_O_WORKDIR is the directory (/share/apps/ansys_inc/v162/fluent) from which I want to execute. So I am actualy manually setting it.

I am slightly new to linux, hence any help in this regard is much appreciated

vesp · September 19, 2018, 10:07

just replace the line "cd $PBS_0_WORKDIR"
with
"cd /share/apps/ansys_inc/v162/fluent"

That should work!

sanjaykummar2810 · September 19, 2018, 10:14

Thanks for your fast reply.

I have replaced "cd $PBS_0_WORKDIR" with "cd
/share/apps/ansys_inc/v162/fluent" . Now im getting error as "too many arguments".

vesp · September 19, 2018, 10:26

at which command? sounds like you have some typo

sanjaykummar2810 · September 19, 2018, 10:40

im getting error at cd

error message ´cd: Too many arguments´

what do you mean by typo?

vesp · September 19, 2018, 10:48

Quote:

Originally Posted by sanjaykummar2810

im getting error at cd

error message ´cd: Too many arguments´

what do you mean by typo?

the input to the cd command is wrong, or an enter is missing.

What happens when you remove the line to execute fluent from the job script and just enter "cd XX" (without the "", and replace XX with the dir)

sanjaykummar2810 · September 19, 2018, 10:55

it is still showing cd:too many arguments

vesp · September 19, 2018, 11:01

Quote:

Originally Posted by sanjaykummar2810

it is still showing cd:too many arguments

yes, of course, cd takes ONE argument only

you need two lines: one to change to the dir, the second to execute fluent.

as I said, just input "cd XX", where XX is the directory and nothing else

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September 19, 2018, 09:44		#2
vesp Member Join Date: Aug 2018 Posts: 77 Rep Power: 6	well, neither did you define the variable in question nor does it seem to be an exported (i.e. globally available) variable. So go ahead and set it manually to the directory from which you want to execute from.

September 19, 2018, 10:02		#3
sanjaykummar2810 New Member sanjay Join Date: Jun 2018 Posts: 12 Rep Power: 6	Hi Vesp, The specified location below the $PBS_O_WORKDIR is the directory (/share/apps/ansys_inc/v162/fluent) from which I want to execute. So I am actualy manually setting it. I am slightly new to linux, hence any help in this regard is much appreciated

September 19, 2018, 10:07		#4
vesp Member Join Date: Aug 2018 Posts: 77 Rep Power: 6	just replace the line "cd $PBS_0_WORKDIR" with "cd /share/apps/ansys_inc/v162/fluent" That should work!

September 19, 2018, 10:14		#5
sanjaykummar2810 New Member sanjay Join Date: Jun 2018 Posts: 12 Rep Power: 6	Thanks for your fast reply. I have replaced "cd $PBS_0_WORKDIR" with "cd /share/apps/ansys_inc/v162/fluent" . Now im getting error as "too many arguments".

September 19, 2018, 10:26		#6
vesp Member Join Date: Aug 2018 Posts: 77 Rep Power: 6	at which command? sounds like you have some typo

September 19, 2018, 10:40		#7
sanjaykummar2810 New Member sanjay Join Date: Jun 2018 Posts: 12 Rep Power: 6	im getting error at cd error message ´cd: Too many arguments´ what do you mean by typo?