Re: [SSI-users] OpenSSI Demo Application?

[Scott W. <sc...@sl...>]

People usually talk about clusters in terms of linpack ratings:

http://www.top500.org/project/linpack
http://www.top500.org/faq/where_can_i_get_software_test_my_system_top500
http://www.netlib.org/benchmark/hpl/

... that implementation looks like it would require significant effort
to adapt to anything.  Still, it would be nice to have a simple process
for running that on OpenSSI clusters.  

Oh, wait... Debian has a package:

http://packages.debian.org/search?keywords=hpcc&searchon=names&suite=all&section=all

... it just isn't in the sources (/etc/apt/sources.list) for Debian
5.0.4.  The package seems to be too new, targeting the unstable and
testing branches of Debian.  It could probably be made to work or else
compiled from source.  That looks like that comes an MPI implementation.
Running MPI on an SSI system feels a bit strange to me.

Another option would be to fire up Rack or Plack or a similar web
pipeline with preforked servers and load leveling on and run
apachebench against it.  That's more in line with what I'm doing.

What software were you expecting to be run on the thing?  Figuring
out the software first and then the benchmark/demo secondarily 
might be more appropriate.  Here are some popular favorites:

http://www.nccs.gov/computing-resources/jaguar/software/

... most of those aren't cluster aware/cluster specific.

Also, here are Wiki pages on the topic specific to OpenSSI:

http://wiki.openssi.org/go/Demos
http://wiki.openssi.org/go/MySQL_Clustering
http://wiki.openssi.org/go/Features     # scroll down to Middleware Support and Server Support

Most of the apps in that last list are less than exciting for demo 
purposes.  High performance Squid proxy, anyone?

Cheers,
-scott

On  0, "Cumberland, Lonnie" <lon...@ni...> wrote:
> Hello All,
> 
> Are there any OpenSSI demo applications that can really show the cluster in action?
> 
> I would like to see and test performance on our cluster as we add more and more nodes.
> 
> Thanks and have a great day,
> Lonnie Cumberland, Prof.
> Physicist
>  
> National Institute of Standards and Technology
> Ionizing Radiation Division (846)
> Radiation Physics Group (245), Room C106
> ADDRESS:
>                  100 Bureau Drive, Stop 8462
>                 Gaithersburg, MD 20899-8462
>  
> EMAIL: lon...@ni...
> http://physics.nist.gov/Divisions/Div846/div846.html
>