[aadicfd]

Hello,

I would like to run a session file on my university clusters. I read in CFX user guide that on Linux I can do that by the following command:
<CFDPOSTROOT>/bin/cfdpost -batch <session_file>.cse <Res_file>.res


where session_file is the name of session file and Res_file is the name of result file.


The problem is that I do not know the CFDPOSTROOT location on the clusters.


Also, I cannot run the CFD Post software on clusters because it could cause a licensing problem and the other jobs on the clusters might crash/fail because of that. That's why I would like to run the post script in the background without opening CFD Post.


Does anyone know a way to do so without causing the licensing issue.


Thank you!

[Gert-Jan]

Can you open the CFX-launcher on your linux-cluster?
If so, then in the ribbon go to Tools > Command line.
This will give you a window with all links required.

[aadicfd]

Originally Posted by Gert-Jan

Can you open the CFX-launcher on your linux-cluster?
If so, then in the ribbon go to Tools > Command line.
This will give you a window with all links required.

Thank you for the reply, but I wish to run a session file using terminal (to later automate the process).

Is it possible to run the session file from command line without opening anything manually, so that I can use it in a batch script?

[Gert-Jan]

Yes, therefore I suggest to use the command line functionality from the CFX-Launcher

[aadicfd]

Originally Posted by Gert-Jan

Yes, therefore I suggest to use the command line functionality from the CFX-Launcher

Could you please explain in detail what are you trying to suggest. I opened the command line however I am not sure how to run .cse script or which command to use to run it from there.

[Opaque]

Once you get the new command line window, you should be able to use

cfdpost -help

and read all the valid command lines, for example

cfdpost -play MySession.cse

[Gert-Jan]

Originally Posted by aadicfd

Could you please explain in detail what are you trying to suggest. I opened the command line however I am not sure how to run .cse script or which command to use to run it from there.

Remember that using this command line will solve the issues with the link to CFD-Post.
It will not solve your license problem since ANSYS will still require a valid license, even in command mode. It will save you however a lot of time because this route is generally much faster.

[aadicfd]

But the licensing issue is a bigger problem, because it will crash the running simulation. I was told there is a way to run CFD post session file without opening the GUI for CFD post, but I am not familiar with the command involved.

[Opaque]

Originally Posted by aadicfd

But the licensing issue is a bigger problem, because it will crash the running simulation. I was told there is a way to run CFD post session file without opening the GUI for CFD post, but I am not familiar with the command involved.

It seems you did not read my previous response, and you do not understand the concept of the command line launched from the CFX launcher.

To run the CFX software, the software must be within the appropriate environment (which is not trivial). The command line (as mentioned repeatedly above) provides such an environment. Without the proper environment, the software will NEVER work.

[Gert-Jan]

Originally Posted by aadicfd

But the licensing issue is a bigger problem, because it will crash the running simulation. I was told there is a way to run CFD post session file without opening the GUI for CFD post, but I am not familiar with the command involved.

You can use the command line, like Opaque recommends, but then still a license is required. It would be very generous from ANSYS if they would allow us to use CFDPost via the command line without legal license. They're not, believe me. Shareholder value and so on..........

So, it is very weird if a Solver or any other other process crashes when you start a Post session, with or without GUI. It should not start at all if the license is unavailable. Therefore, if this is your real problem, then something is wrong and beyond my/our expertise. I would ask ANSYS.

[aadicfd]

Thank you both of you for your support, I will try to run it anyway and check if I succeed without crashing anything.

[Светлана]

Originally Posted by aadicfd

Thank you both of you for your support, I will try to run it anyway and check if I succeed without crashing anything.

what did you find?

[aadicfd]

Originally Posted by Светлана

what did you find?

Hi, There is a way to run session file without using the GUI. In order to avoid licensing issue, either you need to have free licenses available or you need to run it through a batch script as a CFX job.
To run it as a batch job make a batch script and use the command mentioned in the previous answers. If you are confused about the command, you can also refer the user guide for cfd post. It has the commands for batch session.