VMD-L Mailing List

From: Axel Kohlmeyer (akohlmey_at_gmail.com)
Date: Fri Aug 13 2010 - 00:03:51 CDT

On Thu, Aug 12, 2010 at 4:00 PM, John Stone <johns_at_ks.uiuc.edu> wrote:
>
> Shawn,

john,

>  What version of VRPN are you running?  Are you running the stock
> VMD binaries we provide, or your own VMD compile?  I ask because our

people have been able to use the stock version 1.8.7 VMD versions
with the modified VRPN code that includes support for the novint falcon.

> stock VMD builds might be linked against a much older version of

the protocol version in VMD is older, 4.06 vs. 4.26 IIRC, but that
doesn't seem to make a difference. the falcon tracker doesn't use
anything new or fancy and i seriously doubt that VRPN has changed
the protocol there.

cheers,
    axel.

> VRPN than the one you're using.  Let us know which versions you're running
> and we'll try and give further suggestions.

> Cheers,
>  John
>
> On Thu, Aug 12, 2010 at 01:48:31PM -0600, Shawn wrote:
>>    After your crystal ball is fixed, please apply it to me coz I may be still
>>    deep in the swamp. :)
>>
>>    Anyway, thanks a lot for pointing out a possible direction!
>>
>>
>>    Shawn
>>
>>    Kohlmeyer <akohlmey_at_gmail.com> wrote:
>>
>>      On Thu, Aug 12, 2010 at 3:28 PM, Shawn <sltsucb_at_gmail.com> wrote:
>>      > Thanks Axel!
>>      >
>>      > We are using only one computer, and the Falcon is connected to the
>>      same
>>      > machine which runs the IMD. If it's a network config problem, is there
>>      a way
>>
>>      that is exactly why the request should come from localhost and not
>>      from the assigned ip number.
>>      > to identify and fix it?
>>
>>      i have never seen this before.
>>
>>      if i would know what is messed up, i would have answered.
>>      sadly, i have no psychic talents and my crystal ball is still in repair.
>>
>>      there are a bunch of things that can be done to debug these
>>      kind of things. i would start by tracking traffic with tcpdump and
>>      see what happens and where it goes. using strace or ltrace on
>>      the various involved executable to narrow down the cause.
>>
>>      axel.
>>
>>      >
>>      > Thanks!
>>      >
>>      >
>>      > Shawn
>>      >
>>      --
>>      Dr. Axel Kohlmeyer    akohlmey_at_gmail.com
>>      http://sites.google.com/site/akohlmey/
>>
>>      Institute for Computational Molecular Science
>>      Temple University, Philadelphia PA, USA.
>
> --
> 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
> 

-- 
Dr. Axel Kohlmeyer    akohlmey_at_gmail.com
http://sites.google.com/site/akohlmey/
Institute for Computational Molecular Science
Temple University, Philadelphia PA, USA.