VMD-L Mailing List

From: Bart Bruininks (b.m.h.bruininks_at_rug.nl)
Date: Wed Jun 10 2020 - 08:20:49 CDT

Follow up:
Writing the following in the terminal does solve the problem, but it feels
like a waste to use a Quadro RTX8000 only for the GUI. It does solve the
interactive rendering issues.

[bash terminal]

VMDOPTIXDEVICEMASK=0x2
export VMDOPTIXDEVICEMASK

Op wo 10 jun. 2020 om 14:02 schreef Bart Bruininks <b.m.h.bruininks_at_rug.nl>:

> Dear VMDers,
>
> When I try to use the GPU accelerated interactive rendering on our
> visualization server I get a black screen. Non-interactive rendering does
> render correctly. Also the CPU rendering (OSPRAY) works fine both
> interactively and non-interactively (though it is always so dark). I am not
> sure if it matters, but the interfacing takes place over a NICE portal
> streaming the screen.
>
> VMD:
> 1.9.4a42
>
> Nvidia Drivers:
> NVIDIA-SMI 440.82 Driver Version: 440.82 CUDA Version: 10.2
>
> GPU's:
> OptiXRenderer) Creating OptiX window: 672 x 805...
> OptiXRenderer) VMD TachyonL-OptiX Interactive Ray Tracer help:
> OptiXRenderer) ===============================================
> OptiXRenderer) Using 2 devices:
> OptiXRenderer) [0] Quadro RTX 8000 CUDA[0], 47.5GB RAM, KTO
> OptiXRenderer) [1] Quadro RTX 8000 CUDA[1], 47.5GB RAM
>
> Cheers,
>
> Bart
>