[Oscar-users] Matlab woes

[D. B. <db...@dw...>]

 

I’m using Maui scheduler. I tried the Matlab scheduler ‘job manager’ but could not get the service started, so ditched it. 

Was asking about passwordless ssh in previous email, as I thought it might help the Matlab external clients find the scheduler running on the headnode. I can ssh in (with a password) no problem, but all matlab (2008a with Parallel computing toolbox) commands: eg.

jm = findResource (‘scheduler’,’type’,’torque’)

sched = “ pretty much the same”

jm = (‘scheduler’, ‘configuration’, ‘mytest’)

etc, etc,

Can never find anything: below is typical output of Matlab client  

 

? Error using ==> distcomp.pbsscheduler.pParseOutputFromQstat>iErrorBecauseCannotFindOrExecute at 41

findResource is reporting an error because 'qstat' is not on your path.

Most likely this is because your computer is not set up as a client on a PBS cluster

or the PBS scripts are not on your path.

 

Error in ==> findResource>iFindScheduler at 288

        out = distcomp.createObjectsFromProxies(proxy, uddConstructor, distcomp.getdistcompobjectroot);

 

Error in ==> findResource at 162

            [out, props, pvals] = iFindScheduler(url, props, pvals);

 

Any idears? 

 

Michael Edwards
Wed, 23 Apr 2008 12:37:59 -0700

What if you hook the client onto the same switch as the cluster?
 
My first guess would be a firewall problem.
 
When you say "the scheduler", which scheduler do you mean, the MATLAB
scheduler or torque/maui, or sgi?  Just for reference.
 
On Wed, Apr 23, 2008 at 11:52 AM, D. Brown <[EMAIL PROTECTED]> wrote:
 
>  Oscar 5.0 on CentOS64 bit.
> 
> 
> 
> Have successfully installed Mathworks Distributed Computing Engine on the
> cluster….
> 
> 
> 
> However, external Centos clients running Matlab Parallel Computing box can
> never find the scheduler on the cluster headnode…
> 
> 
> 
> I've read and tried a lot from Mathworks' site.
> 
> 
> 
> Just wanted to know if someone has some experience with making Matlab work
> with OSCAR.
> 
> 
> 
> Thanks