Learning Forum

[gdickey2]

Hi all,

I'm reaching out to inquire about running the electrophysiology bidomain heart model that is offered on the ANSYS/LS-DYNA tutorials page "Tutorial Electrophysiology - Welcome to LS-DYNA examples".

Right now I'm trying to run the keyword files provided for case 10 from this tutorial. I'm having an issue that seems to be a solver problem (I'm not 100% sure though). In the file, it states that I require "LS-DYNA MPP DEV-96951". Therefore, I’m unable to get it to work with any version of MPP double precision, I’ve tried all versions from R11, R12, R13 and R14. I was kindly wondering if you would be able to let me know what version of LS-DYNA that will allow me to run your model? Do I really need a developer version to run a tutorial model? It would be really nice to be able to test this model out, and thank you in advance for your help.

Thank you, Grant.

 

[Raman Babu]

Hello,

You can use the prescribed development version or a higher one if the prescribed dev version is not available. I checked it with DEV-115080-g88d11f119d and it is working fine with it.

So, please download the latest LS-DYNA dev version and try it.

Regards,

Raman Babu

 

 

 

[gdickey2]

Hello Raman, thanks very much for your reply.

I would love to test to see if I can get it to run with the DEV solvers you mentioned, however, I don't have access to DEV solvers. Would you be able to advise me on how I can get access to these DEV versions (e.g., DEV-115080-g88d11f119d as you mentioned or LS-DYNA MPP DEV-96951)? Additionally, do I need special licensing to use these? Right now I'm using it for academic purposes.

Thank you, Grant.

[Reno Genest]

Hello Grant,

Have you tried with the latest R15.0.2 solver? You can download it here:

LS-DYNA (user=user) Download Page

Username: user

Password: computer

Also, note that R16 should be released soon.

We don't provide a link to the latest DEV solver on the Ansys forum. You can contact your Ansys account manager to know about other ways you can get technical support.

If you are a commercial customer, please create a support case on ACSS and we will send you the latest DEV solver:

customer.ansys.com

 

Reno.

[gdickey2]

Hello Reno,

Thanks for the reply. I have tried R15.0.2 yes, and just to double check I tried it again just now and am getting the same error message. It appears that LS-DYNA states I don't have licensing for this solver version R15. We are under academic licensing (school research purposes), do you think this is the reason? Am I only able to use this solver version if I am under commerical licensing?

Please find attached the screenshot I've included which may further help us troubleshoot this problem.

Thank you, Grant.

[Reno Genest]

 

Hello Grant,

No, it does not matter if you have an academic license. It seems that your site is using the LSTC license to run LS-DYNA and the “REVISION 15″ option is missing in the license file. You will need a new license file with the REVISION 15 option in it to run R15. You can contact your Ansys account manager to get a new license file. Check with your license administrator at your site to update the license file.

The error message is:

 

You need the following line in the server_data (license file) file in the LSTC License Manager installation directory on the license server:

OPTION: REVISION 15

 

Reno.

 

[gdickey2]

Hello Reno,

Thanks so much for your insight on this. I'm reaching out to our ANSYS account manager to get a new license file. I will update you ASAP in this thread as soon as we can get this (hopefully by tomorrow or Monday) and I will let you know if this works.

Talk soon, Grant.