VMD-L Mailing List

From: Ivan Gregoretti (ivangreg_at_gmail.com)
Date: Tue Mar 11 2014 - 12:42:31 CDT

Hello everybody,

Does this email list have a moderator?
If so, would you please contact me?

Thank you,

Ivan

Ivan Gregoretti, PhD
Bioinformatics

On Tue, Mar 11, 2014 at 12:42 PM, Axel Kohlmeyer <akohlmey_at_gmail.com> wrote:

> On Tue, Mar 11, 2014 at 12:04 PM, Simon Etter <ettersi_at_student.ethz.ch>
> wrote:
> > Hi!
> >
> > I don't quite understand what you are saying. Is the remote/compute
> server
> > broken, or is it a problem on my local machine? As already stated in the
> > original question, I consider the first option unlikely, because things
> work
> > when using a different local machine.
>
> GLX (aka OpenGL over X) requires that the GLX library on both sides is
> working correctly.
>
> > Regarding the proposed protocols, as far as I understand (which
> admittedly
> > is not far at all) I would have to install a new server application on
> the
> > compute server. If so, then their usage is ruled out because I don't have
> > root access to the compute server.
>
> this is nonsense. most applications can be installed without root
> privilege. it is only more effort and cannot be done using some kind
> of package manager.
>
> axel
>
>
> >
> > Thanks a lot for your help!
> > Simon
> >
> >
> > On 11/03/14 16:41, John Stone wrote:
> >>
> >> Hi,
> >> Yeah, that indicates that your X server isn't doing
> >> GLX protocol for remote OpenGL properly. I would suggest, as someone
> else
> >> did already, that you consider using a different remote display
> >> protocol such as NX, VNC, or otherwise, unless/until you can get your
> >> X server fixed.
> >>
> >> Cheers,
> >> John Stone
> >> vmd_at_ks.uiuc.edu
> >>
> >>
> >> On Tue, Mar 11, 2014 at 04:21:07PM +0100, Simon Etter wrote:
> >>>
> >>> Hi John
> >>>
> >>> Did as you told me:
> >>>
> >>> $ glxgears
> >>> X Error of failed request: BadAlloc (insufficient resources for
> >>> operation)
> >>> Major opcode of failed request: 154 (GLX)
> >>> Minor opcode of failed request: 3 (X_GLXCreateContext)
> >>> Serial number of failed request: 21
> >>> Current serial number in output stream: 23
> >>>
> >>>
> >>> On 11/03/14 16:10, John Stone wrote:
> >>>>
> >>>> Hi,
> >>>> What X server are you running on your remote machine?
> >>>> It would seem from the messages below that your X server has some
> issues
> >>>> with support for GLX protocol (remote OpenGL). Can you run 'glxgears'
> >>>> remotely on the same setup?
> >>>>
> >>>> Cheers,
> >>>> John Stone
> >>>> vmd_at_ks.uiuc.edu
> >>>>
> >>>> On Tue, Mar 11, 2014 at 01:31:17PM +0100, Simon Etter wrote:
> >>>>>
> >>>>> Hi!
> >>>>>
> >>>>> I have a remote compute server on which I would like to run VMD and
> >>>>> stream
> >>>>> the GUI to my local screen. Every time I start the application, it
> >>>>> crashes
> >>>>> with the following error report:
> >>>>>
> >>>>> Info) VMD for LINUXAMD64, version 1.9.1 (February 1, 2012)
> >>>>> 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, 48 CPUs detected.
> >>>>> Info) Free system memory: 102376MB (79%)
> >>>>> Warning) Detected a mismatch between CUDA runtime and GPU driver
> >>>>> Warning) Check to make sure that GPU drivers are up to date.
> >>>>> Info) No CUDA accelerator devices available.
> >>>>> Warning) Detected X11 'Composite' extension: if incorrect display
> >>>>> occurs
> >>>>> Warning) try disabling this optional X server feature.
> >>>>> XRequest.154: BadAlloc (insufficient resources for operation) 0x17
> >>>>> XRequest.154: GLXBadContext 0x3800001
> >>>>> Segmentation fault
> >>>>>
> >>>>> I heard from other users of the same server that they did not have
> any
> >>>>> problems, so I assume this must be an issue on my local machine.
> >>>>>
> >>>>> Any hint on how I could fix this?
> >>>>>
> >>>>> Regards,
> >>>>> Simon
> >>>>>
> >>>>> --------------
> >>>>> Further points:
> >>>>>
> >>>>> I connect to the server using ssh -X.
> >>>>> Opening remote xterm and gnuplot windows works.
> >>>>> Local X windows version: 1.13.0
> >>>>
> >>>>
> >>
> >
>
>
>
> --
> Dr. Axel Kohlmeyer akohlmey_at_gmail.com http://goo.gl/1wk0
> College of Science & Technology, Temple University, Philadelphia PA, USA
> International Centre for Theoretical Physics, Trieste. Italy.
>