[Beowulf] cli alternative to cluster top?

Douglas Eadline deadline at eadline.org
Mon Dec 1 13:58:33 EST 2008


maybe Joe means this:

http://www.basement-supercomputing.com/content/view/19/45/

which is being updated for SGE 6.* I basically hacked it
together because I could not easily understand qstat.
Source is available, be advised code is ugly as it
started out as hack while I was debugging SGE parallel
environments and test suites.

I should have a new version "real soon now" there are also
some web based tools that do this for SGE as well
(http://xml-qstat.org/)

--
Doug


> Thomas Vixel wrote:
>> I've been googling for a top-like cli tool to use on our cluster, but
>> the closest thing that comes up is Rocks' "cluster top" script. That
>> could be tweaked to work via the cli, but due to factors beyond my
>> control (management) all functionality has to come from a pre-fab
>> program rather than a software stack with local, custom modifications.
>>
>> I'm sure this has come up more than once in the HPC sector as well --
>> could anyone point me to any top-like apps for our cluster?
>
> We have a ctop we have written a while ago.  Depends upon pdsh, though
> with a little effort, even that could be removed (albeit being a
> somewhat slower program as a result).  Our version is Perl based, open
> source, and quite a few of our customers do use it.  I had looked at
> hooking it into wulfstat at some point.
>
> Doug Eadline has a top he had written (is that correct Doug?) for
> clusters some time ago.
>
>>
>> For reference, wulfware/wulfstat was nixed as well because of the
>> xmlsysd dependency.
>
> Sometimes I wonder about the 'logic' underpinning some of the decisions
> I hear about.
>
> ctop could work with plain ssh, though you will need to make sure that
> all nodes are able to be reached via passwordless ssh (shouldn't be an
> issue for most of todays clusters), and you will need some mechanism to
> tell ctop which nodes you wish to include in the list.  We have used
> /etc/cluster/hosts.cluster in the past to list hostnames/ip addresses of
> the cluster nodes.
>
> Let me know if you have pdsh implemented.  BTW:  ctop is OSS (GPLv2).
> It should be available on our download site as an RPM/source RPM
> (http://downloads.scalableinformatics.com).  If there is enough interest
> in it, I'll put it into our public Mercurial repository as well.
>
>
>
>
> --
> Joseph Landman, Ph.D
> Founder and CEO
> Scalable Informatics LLC,
> email: landman at scalableinformatics.com
> web  : http://www.scalableinformatics.com
>         http://jackrabbit.scalableinformatics.com
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--
Doug

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