VMD-L Mailing List

From: Norman Geist (norman.geist_at_uni-greifswald.de)
Date: Thu Oct 23 2014 - 10:48:28 CDT

Hi John,

Yes, using it locally works fine, here the output:

Local:

Info) VMD for LINUXAMD64, version 1.9.2beta1 (September 12, 2014)
Info) http://www.ks.uiuc.edu/Research/vmd/
Info) Email questions and bug reports to vmd_at_ks.uiuc.edu
Info) Please include this reference in published work using VMD:
Info) Humphrey, W., Dalke, A. and Schulten, K., `VMD - Visual
Info) Molecular Dynamics', J. Molec. Graphics 1996, 14.1, 33-38.
Info) -------------------------------------------------------------
Info) Multithreading available, 64 CPUs detected.
Info) Free system memory: 117456MB (90%)
Info) Creating CUDA device pool and initializing hardware...
Info) Detected 1 available CUDA accelerator:
Info) [0] GeForce GTX 660 5 SM_3.0 @ 1.03 GHz, 2.0GB RAM, KTO, AE1, ZCP
Info) Detected 1 available TachyonL/OptiX ray tracing accelerator
Warning) Detected X11 'Composite' extension: if incorrect display occurs
Warning) try disabling this X server option. Most OpenGL drivers
Warning) disable stereoscopic display when 'Composite' is enabled.
Info) OpenGL renderer: GeForce GTX 660/PCIe/SSE2
Info) Features: STENCIL MSAA(4) MDE CVA MTX NPOT PP PS GLSL(OVFGS)
Info) Full GLSL rendering mode is available.
Info) Textures: 2-D (16384x16384), 3-D (2048x2048x2048), Multitexture (4)
Info) Dynamically loaded 2 plugins in directory:
Info) /alfred/bin/vmd/vmd-1.9.2b1/plugins/LINUXAMD64/molfile
after#0
vmd >
[...]
vmd > Info) Rendering current scene to 'vmdscene.ppm' ...
Total OptiX rendering time: 0.9 sec
Info) Executing post-render cmd 'display vmdscene.ppm' ...

SSH Forwarded:

Info) VMD for LINUXAMD64, version 1.9.2beta1 (September 12, 2014)
Info) http://www.ks.uiuc.edu/Research/vmd/
Info) Email questions and bug reports to vmd_at_ks.uiuc.edu
Info) Please include this reference in published work using VMD:
Info) Humphrey, W., Dalke, A. and Schulten, K., `VMD - Visual
Info) Molecular Dynamics', J. Molec. Graphics 1996, 14.1, 33-38.
Info) -------------------------------------------------------------
Info) Multithreading available, 64 CPUs detected.
Info) Free system memory: 117364MB (90%)
Info) Creating CUDA device pool and initializing hardware...
Info) Detected 1 available CUDA accelerator:
Info) [0] GeForce GTX 660 5 SM_3.0 @ 1.03 GHz, 2.0GB RAM, KTO, AE1, ZCP
Info) Detected 1 available TachyonL/OptiX ray tracing accelerator
Warning) Detected X11 'Composite' extension: if incorrect display occurs
Warning) try disabling this X server option. Most OpenGL drivers
Warning) disable stereoscopic display when 'Composite' is enabled.
Info) OpenGL renderer: GeForce GTX 660/PCIe/SSE2
Info) Features: STENCIL MSAA(4) MDE MTX NPOT PP PS GLSL(OVFG)
Info) Full GLSL rendering mode is available.
Info) Textures: 2-D (16384x16384), 3-D (2048x2048x2048), Multitexture (4)
Info) Dynamically loaded 2 plugins in directory:
Info) /alfred/bin/vmd/vmd-1.9.2b1/plugins/LINUXAMD64/molfile
after#0
vmd >
[...]
Info) Rendering current scene to 'vmdscene.ppm' ...
ERROR) OptiX error: Unknown error (Details: Function "RTresult
_rtContextLaunch2D(RTcontext, unsigned int, RTsize, RTsize)" caught
exception: Encountered a CUDA error: cuGLGetDevices() returned (201):
Invalid context, [3801520]) (OptiXRenderer.C:1002
OptiX: An error occured in AS generation. Rendering is aborted.
Total OptiX rendering time: 0.8 sec
Info) Executing post-render cmd 'display vmdscene.ppm' ...
display: improper image header `vmdscene.ppm' @
error/pnm.c/ReadPNMImage/295.

Norman Geist.

> -----Ursprüngliche Nachricht-----
> Von: John Stone [mailto:johns_at_ks.uiuc.edu]
> Gesendet: Donnerstag, 23. Oktober 2014 17:30
> An: Norman Geist
> Cc: VMD Mailing List
> Betreff: Re: vmd-l: Tachyon-Optix failure when SSH X11
>
> Norman,
> Do you get a particular error message? I wouldn't expect it to
> matter
> if you're redirecting X to a remote display, at least in the OptiX code
> paths I'm actually using. I have run OptiX renderings with no display,
> e.g. with VMD using "-dispdev text" without any problems, so I'm
> puzzled
> why the remote display would matter. When you're remote displaying,
> does
> VMD identify the CUDA devices in the machine correctly? I assume you
> have
> also tested this same machine and when running to a local display it
> works fine?
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Thu, Oct 23, 2014 at 05:01:31PM +0200, Norman Geist wrote:
> > Just want to report that using the Tachyon Optix Renderer doesn't
> work
> > when redirected over SSH.
> >
> > - cheers -
> >
> >
> >
> > Norman Geist
> >
> > ------------------------------------------------------------------
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