VMD-L Mailing List

From: Justin Gullingsrud (justin_at_ks.uiuc.edu)
Date: Thu Jun 15 2000 - 17:05:51 CDT

Hi,

Your error message seems to suggest that VMD is trying to connect to
a NAMD process running on a machine named 'origin'; is the the name of one
of the Linux cluster machines?

Connecting to a cluster can be tricky because you don't always know
which machine is the 'master node'. In NAMD's output file, you should
see a line which reads 'Pe 0 starting out on host xxxx'; xxxx is the host
you need to connect to to make the IMD connection.

Hope this helps,

Justin
 

>
> Hi -
>
> I am trying to connect VMD1.5b on a SGI IRIX6 to a
> NAMD2.1 simulation running on a RedHat Linux cluster.
>
> VMD1.5b and NAMD2.1 both seem to be working correctly independantly. Also,
> when I run both VMD and the NAMD simulation on the SGI, the connection
> works perfectly. However, when connecting VMD to the simulation on the
> Linux machine, I get the error:
>
> Error connecting to origin on port 12534
>
> I have checked the port number in /etc/services to make sure the port is
> not already taken, and NAMD starts up fine on the Linux machine and waits
> for VMD to start. I have tried several different port numbers, with no
> success. I have also tried using the IP address instead of the
> hostname with imd connect and still got the same error. Is there a known
> problem in connecting from machine to machine? I think the two are
> opposite endian, will that prevent the connection from working? Any
> advice would be great.
>
> Thanks,
> Kim
>
> 

-- 
Justin Gullingsrud         3111 Beckman Institute
H: (217) 384-4220
W: (217) 244-8946          The time of purification is at hand...