Learning Forum

[aparkerson]

Login to licenses using the following command: ansys/2025R1/v251/licensingclient/linx64/LicensingSettings account login --input "ansys_lic.json"

LS-Dyna works using the following command: ansys/2025R1/v251/ansys/bin/lsdyna i=file.k

#Note: LS-Dyna will not see the license if running with this command: ansys/2025R1/v251/ansys/bin/linx64/lsdyna_sp.e i=file.k

Executing ansys/2025R1/v251/ansys/bin/linx64/lsdyna_sp.e
 License option : check ansys licenses only

      Date: 03/09/2026      Time: 09:09:52  
      ___________________________________________________ 
     |                                                   |
     |  LS-DYNA, A Program for Nonlinear Dynamic         |
     |  Analysis of Structures in Three Dimensions       |
     |  Date    : 10/28/2024    Time: 18:29:45           |
     |  Version : smp s R14                              |
     |  Revision: R14.1.1-8-g2ef819c24f                  |
     |  AnLicVer: 2025 R1 (20241030+dl-67-g73b144a)      |
     |                                                   |
     |  Features enabled in this version:                |
     |    Shared Memory Parallel                         |
     |    FFTW (multi-dimensional FFTW Library)          |
     |    ANSYSLIC enabled                               |
     |                                                   |
     |  Platform   : Xeon64 System                       |
     |  OS Level   : Linux 3.10.0 uum                    |
     |  Compiler   : Intel Fortran Compiler 19.0 SSE2    |
     |  Hostname   : petrone                             |
     |  Precision  : Single precision (I4R4)             |
     |                                                   |
     |  Unauthorized use infringes Ansys Inc. copyrights |
     |___________________________________________________|

Trying to run in double precision with the following command: ansys/2025R1/v251/ansys/bin/linx64/lsdyna_dp.e i=file.k

 

      Date: 03/09/2026      Time: 09:13:53  
      ___________________________________________________ 
     |                                                   |
     |  LS-DYNA, A Program for Nonlinear Dynamic         |
     |  Analysis of Structures in Three Dimensions       |
     |  Date    : 10/28/2024    Time: 18:29:45           |
     |  Version : smp d R14                              |
     |  Revision: R14.1.1-8-g2ef819c24f                  |
     |  AnLicVer: 2025 R1 (20241030+dl-67-g73b144a)      |
     |                                                   |
     |  Features enabled in this version:                |
     |    Shared Memory Parallel                         |
     |    CESE CHEMISTRY EM ICFD STOCHASTIC_PARTICLES    |
     |    FFTW (multi-dimensional FFTW Library)          |
     |    ARPACK (nonsymmetric eigensolver library)      |
     |    ANSYSLIC enabled                               |
     |                                                   |
     |  Platform   : Xeon64 System                       |
     |  OS Level   : Linux 3.10.0 uum                    |
     |  Compiler   : Intel Fortran Compiler 19.0 SSE2    |
     |  Hostname   : petrone                             |
     |  Precision  : Double precision (I8R8)             |
     |                                                   |
     |  Unauthorized use infringes Ansys Inc. copyrights |
     |___________________________________________________|

 > i=lsdyna_test_sp/shock_tube.k

 *** License problem ***
 Local license:

 *** Error This version (LS-DYNA) is not included in the current license key.

 
 *** Error 70022 (OTH+22)
      
     Please file a Service Request (SR) via the ANSYS Customer
     Portal at https://support.ansys.com.
      
     Customers using an academic license may seek assistance
     at https://forum.ansys.com
 E r r o r   t e r m i n a t i o n

 

Is there a way to make the lsdyna executable point to dp and not sp? This should resolve the licensing problems. Or is there a way to make the dp and sp executables see that the license is no longer locally hosted and is now hosted on the web?

 

ansys/2025R1/shared_files/licensing/ansyslmd.ini

ANSYS_LICENSING_SHARED_WEB=1
ANSYS_LICENSING_WEB=1
ANSYS_LICENSING_SERVICE_PRIORITY=web-shared,fnp,web-elastic

[Reno Genest]

Hello,

Have you tried with the -dp argument to run double precision? For example,

 

C:\Program Files\ANSYS Inc\v252\commonfiles\launcherQT\src\..\..\..\ansys\bin\winx64\LSDYNA.exe" pr=dyna i=file.k NCPU=4 -DP

 

Let me know if this works or not.

 

Reno.

 

 

[aparkerson]

That works, thank you! Is there documentation for available arguments? I was able to find documentation for all of the arguments that are not passed as flags, ie NCPU, but nothing for arguments passed as flags like -DP.

[Reno Genest]

Hello,

I found the -DP flag by using the Mechanical APDL Product Launcher. You can set the simulation environment to "LS-DYNA Solver" and change the settings. For example, check the "Enable double precision analysis" box:

 

Then, you can can click Tools > Display Command Line to get the command line:

 

Reno.