This section lists common questions you may have while setting up licensing.

Which files contain the HPC license preferences?

HPC license preferences determine whether an HPC Pack or individual HPC licenses are used first. The preferences are stored in a .xml file.

Linux:

~/.ansys/v242/licensing/license.preferences.xml

Windows:

%appdata%\Ansys\v242\licensing\license.preferences.xml

To set the HPC Licenses preferences, see Setting HPC User Preferences.

Why do multiple core Ansys LS-DYNA calculations fail when I appear to have HPC Pack or Ansys HPC licenses available?

Standard Ansys HPC licenses such as anshpc and anshpc_pack, cannot be used with Ansys LS-DYNA. Ansys LS-DYNA uses Ansys LS-DYNA, dysmp, licenses to enable multiple core calculations.

How many HPC license are used when I run Ansys LS-DYNA on multiple cores?

When run on multiple cores, Ansys LS-DYNA will consume dysmp licenses. These licenses are available for purchase in different quantities, as Ansys LS-DYNA HPC, Ansys LS-DYNA HPC-8, 16, 32,64,128 and 256. The licenses can then be added together, to enable the total number of cores requested by a calculation. A calculation run on <n> cores, will consume a base Ansys LS-DYNA license (dyna), plus <n-1> Ansys LS-DYNA HPC licenses (dysmp).

Does the number of CUDA cores on a GPU card change the number of HPC licenses used?

The number of HPC license consumed when using GPU cards to accelerate an Ansys solution depends on the number of GPU cards used and the number of separate GPU engines on each card. The number of HPC licenses consumed, does not depend on the number of CUDA cores, supplied by each separate GPU engine.

Is there any disadvantage to not renewing TECS on my perpetual HPC license?

If you do not renew TECS on perpetual HPC licenses, the HPC licenses can only be used to enable multiple core calculations for Ansys solvers that were released before the date of expiry, of the TECS.