Re: [SSI-users] larger OpenSSI clusters

[Roger T. <rog...@gm...>]

It might interest you that Bruce presented plans for a (four thousand) 4000=
+=20
node cluster not too long ago. 125+ nodes isn't out of the picture...

Roger


On 9/20/05, Ron Croonenberg <ro...@de...> wrote:
>=20
> Cool,
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> I am actually talking here about building a 125 node cluster. The
> OpenSSI software as it is now supports 125 nodes (any experience with
> more then 125 nodes ??).
> I would like to use OpenSSI BUT at this point it is still somewhat open
> for discussion about what to run on it.
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> Is there an "optimal" number of nodes (with OpenSSI) ? I can imagine
> that when the number of nodes gets larger the cluster doesn't
> necessarilly get faster, maybe even the cluster becomes slower when
> adding nodes at some point. (I had that experience with a cluster I
> built out of old lab equipment/computers)
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> The plan is to build a good size cluster, preferably using OpenSSI,
> start using it for parallel computing (including pvm and/or mpi or just
> the cluster libs ??) and for running statistical apps and simulations.
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> Right now we have 2 clusters, one with 37 nodes, however that one is
> built using old lab computers (PII's and PIII's mostly) and a 6 node
> cluster built with 6 Dell PowerEdge 1850's (dual Xeon's 6Gb).
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> For the larger cluster I am thinking of using 1850's too.
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> I would really would like to hear things about applications like
> statistics, simulations etc.
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>=20
> thanks,
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> Ron
>=20
>=20
>=20
> >>> Ivan Krstic <kr...@fa...> 09/20/05 8:34 AM >>>
> Ron Croonenberg wrote:
> > Is there anyone on this list that has experience with larger clusters
> ?
> > Let's say someone who has a larger number of nodes or maybe even 125
> > nodes running ?
>=20
> Someone recently got in touch with me about putting together a 60-node
> OpenSSI cluster. That should happen in the next month or so, and we'll
> be able to run various HPC and HA tests on it to see how things work in
> a larger cluster.
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> -IK
>=20
>=20
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