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Ansys Mechanical APDL, GPU acceleration

    • sahsonas
      Subscriber

      Hello,


      Can anyone tell me how to enable or activate GPU acceleration on Ansys Mechanical APDL 18.2 ?


      I have the following specs:


      Operating System: Windows 7 Professional x64


      Processor: Intel(R) Core(TM) i7-4930K CPU @ 3.40 GHz 3.40 GHz


      Installed Memory (RAM): 32 GB


      GPU: NVIDIA Tesla C2075 and NVIDIA Quadro 2000


      CUDA version: 6.0


      CUDA runtime: 6.0


      Graphics Driver: NVIDIA 332.88 (checked with GPU-Z) 


       


      Note that I have already applied these methods.


      Method 1. In Mechanical APDL, Tools > Solve Process Settings > My Computer > Advanced>


         Max number of Utilized cores: 4      Use GPU acceleration: NVIDIA      Number of utilized GPU devices 1 (also checked with 2)


      Method 2: In System variables, Add new variable> 


         Variable Name: ANSGPU_OVERRIDE      Value = 1.


       


      However, I am still getting an error saying that:


      *** FATAL ***


      An error has occured when trying to check for any GPU devices on machine. Error code = 35 which translated to: CUDA driver version is insufficient for CUDA runtime version. Please check your GPU device driver level and verify that a supported GPU device has been installed correctly.


      Note that I tried to install CUDA 10, 8, 7.5, and 6.5. I got the same error on every version of CUDA. Now CUDA 6.0 is installed in the system


      NOTE: I checked on Ansys Fluent, using /parallel/gpgpu/show. Both of the GPUs are shown and starred.


       


      Please guide me about how to activate and utilize the GPU on my workstation. 


       


      Thanks

    • sahsonas
      Subscriber

      Is there anyone who can share his expertise on the discussion started here?


      Thanks

    • Rob
      Ansys Employee

      First thing to check is whether the graphics card is compatible:  https://www.ansys.com/solutions/solutions-by-role/it-professionals/platform-support 


      I'll also move to the Installation section as it's hardware related. This section is for software interaction eg FSI. 

    • sahsonas
      Subscriber

      Thanks for your response.


      The graphics card is listed to be compatible and tested on Windows x64. Tesla C2075 is listed in TESTED cards.


      Thanks

    • tsiriaks
      Ansys Employee

      What if you disable your NVIDIA Quadro 2000 or upgrade its driver to


      https://www.nvidia.com/Download/driverResults.aspx/130175/en-us


      while leaving your Tesla as-is.


       


      If those don't work, try both of the above again and upgrade your Tesla CUDA runtime/driver version to 8.0


      https://www.nvidia.com/Download/driverResults.aspx/121399/en-us

    • sahsonas
      Subscriber

      Hi Tsiriaks,


      Thanks for your guidance. The first option has solved the problem.


      Installed driver is now NVIDIA 377.83 with CUDA Toolkit 8.0.

    • tsiriaks
      Ansys Employee

      That's great !


      Thank you for the update. I'm glad it's working for you.


       

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