VMD-L Mailing List

From: Jérôme Hénin (jhenin_at_ifr88.cnrs-mrs.fr)
Date: Mon Mar 28 2011 - 17:33:59 CDT

On 28 March 2011 23:04, John Stone <johns_at_ks.uiuc.edu> wrote:
> Out of curiosity, are you using your own compilation of VMD, or are
> you running the binaries that I provide on our web site?  It only matters
> insofar as I can then tell NVIDIA which CUDA runtime library is being used.

I am running your binaries.

Cheers,
Jerome

> Cheers,
>  John Stone
>  vmd_at_ks.uiuc.edu
>
> On Fri, Mar 25, 2011 at 03:19:59PM +0100, Jérôme Hénin wrote:
>> I should have said it in the first message: 260.19.36
>>
>> Jerome
>>
>> On 25 March 2011 15:05, John Stone <johns_at_ks.uiuc.edu> wrote:
>> >
>> > Jerome,
>> >  What NVIDIA driver version are you using?
>> >
>> > Cheers,
>> >  John
>> >
>> > On Fri, Mar 25, 2011 at 10:40:04AM +0100, Jérôme Hénin wrote:
>> >> Hi John,
>> >>
>> >> On 25 March 2011 03:02, John Stone <johns_at_ks.uiuc.edu> wrote:
>> >> >
>> >> > Jerome,
>> >> >  Are you using the GPU for anything besides VMD, like Google Chrome?
>> >>
>> >> I read about that issue, so I closed it before trying again.
>> >>
>> >> > I've had a few people telling me lately that some other apps have started
>> >> > interfering with VMD if the GPU doesn't have much RAM.  I've reported
>> >> > a driver bug to NVIDIA about this already, and they are working on it so
>> >> > that at least the error codes returned are more indicative of the real
>> >> > problem.  How long is the first VMD running before you start the second
>> >> > one?
>> >>
>> >> That doesn't change anything. If I just start them one after the
>> >> other, without loading any data, I get the same result.
>> >>
>> >> I have never been a fan of running multiple VMD sessions anyway, but I
>> >> do mind segfaults :-)
>> >>
>> >> Thanks,
>> >> Jerome
>> >>
>> >> > On Wed, Mar 23, 2011 at 03:40:20PM +0100, Jérôme Hénin wrote:
>> >> >> Hi all,
>> >> >>
>> >> >> I am running VMD 1.9 on a Linux x86_64 machine with an nVidia GPU and
>> >> >> the assorted proprietary driver. The first instance says:
>> >> >>
>> >> >> Info) VMD for LINUXAMD64, version 1.9 (March 14, 2011)
>> >> >> (...)
>> >> >> Info) Detected 1 available CUDA accelerator:
>> >> >> Info)   [0] Quadro FX 3700     14 SM_1.1 @ 1.25 GHz,  511MB RAM, KTO, OIO, ZCP
>> >> >> Info) OpenGL renderer: Quadro FX 3700/PCI/SSE2
>> >> >> Info)   Features: STENCIL MSAA(16) MDE CVA MTX NPOT PP PS GLSL(OVF)
>> >> >> Info)   Full GLSL rendering mode is available.
>> >> >> Info)   Textures: 2-D (8192x8192), 3-D (2048x2048x2048), Multitexture (4)
>> >> >>
>> >> >> If I try to start a second instance of VMD though, it says:
>> >> >>
>> >> >> Info) Creating CUDA device pool and initializing hardware...
>> >> >> Warning) thread[0] can't init GPU[0] found by device query
>> >> >> Warning) CUDA error: no CUDA-capable device is available
>> >> >> Segmentation fault
>> >> >>
>> >> >> I don't remember this happening with previous versions. Any ideas?
>> >> >>
>> >> >> Cheers,
>> >> >> Jerome
>> >> >
>> >> > --
>> >> > 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
>> >> >
>> >
>> > --
>> > 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
>> >
>
> --
> 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
>