[FreeNX-kNX] Matlab in cluster through NX

[Prakash Velayutham]

On Jun 9, 2009, at 5:55 PM, Holger Krull wrote:

> Prakash Velayutham schrieb:
>
>> Does anyone here use (or administer) Matlab in a Linux-based cluster?
>
>> How does the graphical performance compare between Matlab GUI in a NX
>> session to that of Matlab running in the local desktop?
>
> I've setup matlab in a cluster, but not with the automatic job  
> scheduling of matlab (university didn't buy it). We devided and  
> scheduled the tasks ourself.
> I could see no difference between local and NX session, but my  
> aplication only produced graphical output at the end of all  
> calculations, so there were no frequent updates necessary.
> I used NX to start matlab localy and be able to transfer the session  
> to a remote computer (at home) without problems.
>
> In short, it depends on what you do.

Thanks. I don't have the Distributed Computing Server license either,  
so I was also talking about the cluster scheduling instead. Anyways,  
here are some numbers from my Matlab environment. Could you compare it  
with yours when you get a chance and let me know how bad mine are:

NX Client - 3.3.0.6 - Mac OS X
FreeNX Server - 0.7.2-1.1 - OpenSUSE 10.3

Cluster resource manager - Torque - 2.3.6
Cluster Scheduler - Moab

I start NX client and connect to the cluster head node. Either using  
SSH -X or using qsub -X (Torque-specific), I then connect to a compute  
node. Then I start Matlab. It takes about 15 seconds to get the prompt  
inside of the Matlab GUI's command screen. How bad is this time for  
startup?

Thanks,
Prakash