[Paraview] Query on EGL libs for Paraview 5.0.1

[Chuck Atkins]

Hi Bishwajit,

I hate to be the bearer of bad news, but the K20c was a specific model of
Tesla that is restricted to compute functionality only and is not capable
of performing OpenGL functions via EGL.  As such, it won't be usable by
ParaView for rendering.  Almost all other Teslas, including the other K20
models (K20m and K20x), can be switched into either compute-only,
graphics-only, or both modes, but the K20c only has compute mode
available.  So even though you may get it building with the libraries in
the folder Andy is pointing to, I don't believe you'll actually get a
working EGL device.  If you do, then fantastic, but don't get your hopes up
:-/

- Chuck

On Sun, Mar 5, 2017 at 7:09 PM, Andy Bauer <andy.bauer at kitware.com> wrote:

> Hi,
>
> Maybe look in:
>  /usr/lib/nvidia-<driver version>
>
> for the drivers -- that's where  it is for my r367 NVIDIA drivers on
> Ubuntu 16.04. Otherwise you may need to check with NVIDIA on where it gets
> installed for your set of drivers and system.
>
> On Sat, Mar 4, 2017 at 10:19 PM, Bishwajit Dutta <bdutta at vt.edu> wrote:
>
>> Hi All,
>>
>> I am trying to compile Paraview 5.0.1 with EGL support as I want to use
>> NVIDIA Tesla K20c
>> for rendering in Ubuntu 14.04. This is without any windowing system as
>> K20c is designed for
>> server based rendering (without any VGA port and OpenGL support (I
>> think!))
>>
>> I went through
>>
>> https://blog.kitware.com/off-screen-rendering-through-the-na
>> tive-platform-interface-egl/
>>
>> and as I understand, for this I need to set the below Paraview flags
>> before compilation:
>>
>> VTK_EGL_DEVICE_INDEX=set to graphics driver index
>> VTK_USE_OFFSCREEN_EGL =on
>> EGL_INCLUDE_DIR
>> EGL_LIBRARY /usr/lib/x86_64-linux-gnu/libEGL.so
>> EGL_gldispatch_LIBRARY /usr/lib/x86_64-linux-gnu/libGLdispatch.so.0
>> EGL_opengl_LIBRARY /usr/lib/x86_64-linux-gnu/libOpenGL.so
>>
>> My query is on gettting the correct libs i.e. libEGL.so,
>> libGLdispatch.so.0 and libOpenGL.so.
>>
>> When I installed "NVIDIA-Linux-x86_64-375.26.run" these libs were not
>> installed.
>>
>> Which is the right place to get them. I can see several links on internet
>> search:
>>
>> https://github.com/NVIDIA/libglvnd/blob/master/README.md
>>
>> https://www.mesa3d.org/egl.html
>>
>> Which is the correct one
>>
>> Thanks in advance for help.
>>
>> BR,
>> Bishwajit
>> Virginia Tech
>>
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