Learning Forum

[sahsonas]

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]

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

Thanks

[Rob]

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]

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]

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]

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]

That's great !

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