VMD-L Mailing List

From: Greipel.Joachim_at_MH-Hannover.DE
Date: Tue Dec 28 2004 - 08:39:32 CST

Hi All,
I am setting up VMD on a DUAL-Opteron machine for rendering on remote
X-Servers which run under Linux and are equipped with NVIDA Quadro
Graphics and Hardware Stereo.

The rendering on the remote machines worked (even stereo display with
crystal eyes) but unfortunately it was very (!) slow. I just installed
the 1.8.3b1 version and to my surprise the rendering on the remote
machines is now acceptably fast.

There are slight differences in the startup messages of VMD

1.8.3b1 ("fast rendering")

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, 2 CPUs detected.
Info) OpenGL renderer: Quadro4 980 XGL/AGP/SSE2
Info) Features: STENCIL STEREO RN MDE MTX PP
Info) OpenGL Programmable shading is NOT available.
Info) Textures: 2-D (4096x4096), 3-D (512x512x512), Multitexture (4)

1.8.2 ("slow rendering")

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, 2 CPUs detected.
Info) OpenGL renderer: Quadro4 980 XGL/AGP/SSE2
Info) Features: STENCIL STEREO RN MTX
Info) Textures: 2-D (4096x4096), 3-D (512x512x512), Multitexture (4)
vmd >

Is there any rational explanation for this behaviour?
Thanks a lot,

Joachim Greipel

Medizinische Hochschule Hannover
Germany