[Paraview] [Non-DoD Source] Re: ParaView GPU support (UNCLASSIFIED)

[Su, Simon M CIV USARMY RDECOM ARL (US)]

CLASSIFICATION: UNCLASSIFIED

Hi Utkarsh,

is there a sure way to tell if our ParaView VTK-m compilation has the correct 
CUDA support?  For the superbuild process, is there a way to force the 
detection of CUDA library and fail the superbuild process if CUDA library is 
not correctly detected? thank you

thanks
-simon

-----Original Message-----
From: Utkarsh Ayachit [mailto:utkarsh.ayachit at kitware.com]
Sent: Friday, September 15, 2017 12:36 PM
To: Su, Simon M CIV USARMY RDECOM ARL (US) <simon.m.su.civ at mail.mil>
Cc: paraview at paraview.org
Subject: [Non-DoD Source] Re: [Paraview] ParaView GPU support (UNCLASSIFIED)

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----

Simon,

The answer depends on whether you want to ParaView to use GPU for rendering 
alone or also for computation e.g. contours. For former, it's automatic via 
OpenGL. So long as your environment and/or your build is set up such that 
ParaView picks up the OpenGL implementation provided by your GPU drivers, 
you'll get GPU acceleration. For GPU-accelerated algorithms, you have to 
enable VTK-m support at build time and then enable CUDA support for VTM-m. 
Currently, you need create special filters via the VTM-m plugin [1] to use 
accelerated versions of common algorithms like contour. In future, this will 
be automatic, and you will be able to simply use the generic filters.

Hope that helps.

Utkarsh


[1] Caution-https://blog.kitware.com/paraview-5-3-0-release-notes/

On Thu, Sep 14, 2017 at 3:42 PM, Su, Simon M CIV USARMY RDECOM ARL
(US) <simon.m.su.civ at mail.mil> wrote:
> CLASSIFICATION: UNCLASSIFIED
>
>  Hello,
>
> How do we configure ParaView to take advantage of available GPU
> hardware? Do we have to compile with different compile flags? Or
> ParaView automatically detects availability of GPU hardware and take
> advantage of it?  Any insight is greatly appreciated
>
> Thanks
> -simon
>
>
> CLASSIFICATION: UNCLASSIFIED
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