VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Thu Aug 11 2005 - 09:46:14 CDT

Hi,
  Two things to check:
    1) when you run VMD, it'll display a rotating VMD logo until you
       load a molecule. While animating, VMD does use all available
       CPU/GPU horsepower to get best speed. Typically the limiting factor
       is the graphics board, so on a normal machine the CPU load is
       hardly noticable. If you've just loaded VMD and it's eating CPU,
       load a molecule and it'll drop back to zero so long as you're not
       actively rotating the molecule or leaving it spinning.

    2) If you're seeing excessive CPU usage, this may indicate that your
       machine is using the Microsoft software OpenGL rasterizer, which
       uses the CPU to do all of the graphics work. If so, this explains
       why your CPU is completely pegged. If this is the case, you're going
       to want to search for a hardware accelerated OpenGL driver for your
       machine, or to upgrade the graphics board in your machine with
       something that's more appropriate for molecular visualization,
       namely, a board that has hardware transformation and lighting
       acceleration at a minimum.

Let us know if you need more help with this.

  John Stone
  vmd_at_ks.uiuc.edu

       

On Wed, Aug 10, 2005 at 07:46:46PM -0400, griadi_at_utalca.cl wrote:
> Hi all,
>
> VMD 1.8.3, just installed, is taking 100% of CPU capacity of the computer. The
> computer turns slow and hot. Is it normal? Is it fixable?
>
> Thanks!
> Gonzalo.
>
>
> -------------------------------------------------
> Este mensaje fue enviado por: http://utalca.cl 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
Email: johns_at_ks.uiuc.edu                 Phone: 217-244-3349
  WWW: http://www.ks.uiuc.edu/~johns/      Fax: 217-244-6078