License error “currently in use by another process” when running Fluent

January 30, 2024 at 5:31 pm

arbauman

Subscriber

We have some researchers here who are running into an error when using Fluent. This is ANSYS 2022 R2 on Windows.

We have the ANSYS Academic Multiphysics Campus Solution with plenty of available licenses for all components. The client machine is accessing the license server properly.

However, sometimes when running Fluent jobs, they get this error:

I had them generate the ANSYS logs on the client side, and in the log "[machinename].FLUENT.222.out", I see the following:

2024/01/29 14:30:57    CLIENT_CONNECT                                                                                         4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
2024/01/29 14:30:57    NEW_CONNECTION      Connected to Licensing Client Proxy server: 63781@127.0.0.1.
2024/01/29 14:30:57    CHECKOUT            cfd_base (Share)                22.2 (2022.0502)             1/-/-/-               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
2024/01/29 14:30:57    CHECKOUT            cfd_solve_level1 (Share)        22.2 (2022.0502)             1/-/-/-               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
2024/01/29 14:30:57    CHECKOUT            cfd_solve_level2 (Share)        22.2 (2022.0502)             1/-/-/-               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
2024/01/29 14:31:00    SPLIT_CHECKOUT      anshpc                          22.2 (2022.0502)       10/19/19/3274               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
2024/01/29 14:31:00    SPLIT_CHECKOUT      HPC_PARALLEL                    22.2 (2022.0502)         10/10/10/10               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
2024/01/29 14:31:00    CHECKOUT            HPC_PARALLEL                    22.2 (2022.0502)         10/10/10/10               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
2024/01/29 14:31:05    DENIED              37824_labmachine4_dept_ncsu_edu-dept-labuser-22452-001112_63781@127.0.0.1        22.2 (2022.0502)             1/1/1/1               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
Shared license CFD Solver - Level 2 currently in use by another process.
2024/01/29 14:45:40    DENIED              37824_labmachine4_dept_ncsu_edu-dept-labuser-22452-001112_63781@127.0.0.1        22.2 (2022.0502)             1/1/1/1               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
Shared license CFD Solver - Level 2 currently in use by another process.
2024/01/29 15:28:03    DENIED              37824_labmachine4_dept_ncsu_edu-dept-labuser-22452-001112_63781@127.0.0.1        22.2 (2022.0502)             1/1/1/1               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
Shared license CFD Solver - Level 2 currently in use by another process.
2024/01/29 15:48:48    DENIED              37824_labmachine4_dept_ncsu_edu-dept-labuser-22452-001112_63781@127.0.0.1        22.2 (2022.0502)             1/1/1/1               4/5/12/12   53468:FLUENT:dept-labuser@labmachine4.dept.ncsu.edu:winx64   8088:xxx.xxx.xxx.216
Shared license CFD Solver - Level 2 currently in use by another process.

It looks like at 14:30:57 cfd_solve_level2 was properly accessed, and when attempted again at 14:31:05 (and after), it was denied.

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It does not appear to be a matter of licensing in terms of what our ANSYS license allows, but maybe in terms of what can be run on a single machine?

What does the "shared license" error mean, and how do we work around it?

February 2, 2024 at 10:33 am

Rajeshwari Jadhav
Ansys Employee

Hi Arbauman,
Can you please turn off license sharing under WB > Tools > Options > Project Management > Uncheck the share a single license box and click OK, restart Workbench for this setting to take effect.
February 8, 2024 at 7:09 pm

arbauman
Subscriber

Thank you, that fixed the issue!