Learning Forum

[Andres Garcia Coleto]

Hello, 

After updating my ansys lumerical version from 2024 R1.3 to 2024 R2 I've started getting license issues when I save many jobs to the job queue an then run runjobs. About 20% of them fail with the following error:

 

GPU streaming multiprocessors(SMs): 40

System error: 10054 "An existing connection was forcibly closed by the remote host.

".

 

Error: Failed to checkout feature 'lum_fdtd_solve'
System error: 10054 "An existing connection was forcibly closed by the remote host.

".

Would you like to reconfigure your license settings?, Response: No

License error: Failed to checkout feature 'lum_fdtd_solve'

System error: 10054 "An existing connection was forcibly closed by the remote host.

".

 

Error: there was a failure with the license. Process number: 0 had this error

 

The license for lumerical is hosted on a server if that makes any difference. Additionally, this is an error that only occurs with 2024 R2. I can still run 2024 R1.3 without any license failures. 

I was wondering if anyone else is having this issue or if there is a way to solve this.

 

Thank you for your help!

 

 

[Lito]

Hello Andres Garcia Coleto,

1. Try to reset/delete the 'FDTD Solutions.ini' file from your user's folder before running with the 2024 R2 release.
   >>Ansys Lumerical product preference files – Ansys Optics 
2. Should the issue persists, please assist us with the following:
   • Which operating system and version are you running? 
   • Please send a screenshot of the Optics Launcher > Licenses configuration utility. 
     >>Lumerical license configuration with the Ansys Optics Launcher – Ansys Optics 
   • Also a screenshot of the Lumerical CAD > Resources configuration.
     >>Resource configuration elements and controls – Ansys Optics 
   • Are you runnning FDTD on GPU?
   • Check if the license manager (LM) status and availability from your local computer.
     >>How to check license status and availability – Ansys Optics
     Check/verify that the LM is up and running and have the licenses required to run your simulation with GPU.
     (40 SMs, requires 3x FDTD solve licenses) 
     

I look forward to your reply soon. Thank you!