[StarCluster] What is the good number of EC2 Instants for a one cluster

[Rajat Banerjee]

Hi Kwon,
Welcome to Starcluster.

100 EC2 instances seems excessive. The High performance instances are
not cheap either. Most people start with 3-5 instances. I have no idea
what your job profile looks like, but you can add nodes to a running
cluster with the add_node command if you need more. You probably want
to experiment with a small job first and then scale up.


Good luck,
Rajat

On Fri, May 13, 2011 at 2:23 PM, Kwon (Byoungkwon) An
<dran at csail.mit.edu> wrote:
> Hi All
>
> This is my first time using a starcluster.
> I would like to run a open mpi program, on the High perform EC2 instance.
>
> Is it possible run it on 100 EC2 instance? or more?
> If not, what is the reasonable number of the instances for a cluster?
>
> What should I careful to run for the first run of mpi?
>
> Thank you,
> Kwon
>
>
> --
> Byoungkwon An
> Graduate Student
> CSAIL @ MIT
> 617-335-1680
> dran at csail.mit.edu
> http://groups.csail.mit.edu/drl/
> http://www.drancom.com
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