On Mon, 12 Jan 2004, Praveen Agrawal wrote:
> Hi All,
> I have to prepare a LAM cluster of clusters. The architecture would be like:
> 35 Sun systems on a private network, with one master(2 IPs)-->gigbit network
> 16 Linux systems another private network, with one master(2 IPs)-->100mbps
> 16 independent Linux(each having own IP)-->100mbps
>
> I am thinking of using one IMPI server for each of the cluster but I am
> confused with the FAQs if I would be able to support these many systems.
> Also, if there be any other alternative please let me know.
IMPI would definitely work, but note that LAM only has some of IMPI
implemented. Notably missing are all collectives besides MPI_Barrier.
Running across 3 private networks is fairly complicated; other than using
the limited functionality that LAM has for IMPI, I can't think of a good
way to do this -- some type of external routing from one NAT'ed host to
another is necessary. :-(
--
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/
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