VMD-L Mailing List

From: Jason Smith (jason_smith_18_at_sfu.ca)
Date: Thu Apr 15 2021 - 11:26:05 CDT

My Apologies,

I just tested 1.9.4a51v6 on a 960M (while John was writing his reply) and both in-memory and interactive tachyon-optix works fine, so long as you aren't attempting to use RT-based effects like mirror (which leads to a crash-to-desktop).

Cheers,

-
Jason Smith
Post-Doctoral Fellow
Robert N. Young Lab, Simon Fraser University
8888 University Drive, Burnaby, BC, V5A-1S6
Canada

________________________________
From: Jason Smith
Sent: Thursday, 15 April 2021 9:08:29 AM
To: John Stone; Geist, Norman
Cc: Nikhil Maroli; Vmd L
Subject: Re: vmd-l: Rendering using GPU

Correct me if I'm wrong, but ray tracing with Optix requires the ray tracing cores present on 2000 and later series NVidia GPUs.

Cheers,

-
Jason Smith
Post-Doctoral Fellow
Robert N. Young Lab, Simon Fraser University
8888 University Drive, Burnaby, BC, V5A-1S6
Canada

________________________________
From: owner-vmd-l_at_ks.uiuc.edu <owner-vmd-l_at_ks.uiuc.edu> on behalf of John Stone <johns_at_ks.uiuc.edu>
Sent: Thursday, 15 April 2021 8:20:42 AM
To: Geist, Norman
Cc: Nikhil Maroli; Vmd L
Subject: Re: vmd-l: Rendering using GPU

Hi,
  When VMD starts up, it automatically detects NVIDIA GPUs
that support CUDA and OptiX (OptiX is the ray tracing development
framework I used to write the existing lightegith GPU version of Tachyon).
If you've got up-to-date NVIDIA drivers, you should see a VMD startup message
that looks similar to this:

Info) Detected 3 available TachyonL/OptiX ray tracing accelerators
Info) Compiling OptiX shaders on 3 target GPUs...

If no OptiX-capable GPUs are seen by VMD, then you won't see the
various "TachyonL-OptiX" renderers listed in in the File->Render menu.

Best regards,
  John Stone

On Thu, Apr 15, 2021 at 10:45:48AM +0200, Geist, Norman wrote:
> Use renderers with optix in their names.
>
> Am Donnerstag, den 15-04-2021 um 09:31 schrieb Nikhil Maroli:
>
> Dear All,
> I am having 3 x 1070 with a 2 x 12 core processor. I have installed VMD
> for CUDA versions. When I load VMD I can see it uses 700Mb from the
> card, however rendering always running on the processor.
> Can anyone tell me how I use cards for rendering purposes
> Nikhil
> -- 

--
NIH Center for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
http://www.ks.uiuc.edu/~johns/           Phone: 217-244-3349
http://www.ks.uiuc.edu/Research/vmd/