GPU & RL-GO

Duncan_21342
Duncan_21342 Altair Community Member
edited October 2020 in Community Q&A

HI,

 

Can a NVIDIA card be used to speed up RL-GO?  Do I need to install CUDA drivers specificaly or does FEKO not need them?

 

I have enabled 'use GPU' in the command launch parameters and switched off parallel but only see performance degredation.

 

Many thanks,

 

Duncan

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Answers

  • Mel
    Mel Altair Community Member
    edited December 2019

    Limited scope for GPU support for RL-GO is currently (Feko 2019) as follows:

    Only for flat PEC and dielectric triangles but also including isotropic and anisotropic thin dielectric sheets, coated PEC, lossy metallics, surface impedance and characterised surfaces.

    Note also it is only when manual ray launching settings have been set.

     

    If the graphics card is a CUDA card there should be no need to install additional drivers, but always ensure you have the latest drivers installed.

  • Duncan_21342
    Duncan_21342 Altair Community Member
    edited January 2020

    Thanks for your answer Mel,

     

    If I specify a ray spacing and enable use GPU, will it become obvious that GPU ray tracing is being performed and should I expect a significant speed increase compared to CPU ray tracing?

     

    Many thanks,

     

    Duncan

  • Mel
    Mel Altair Community Member
    edited January 2020

    It will depend on what angular increment or ray front spacing you specify.

    You should do a run with GPU on and with GPU off.

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