On Fri, 12 Sep 2003, Munyaradzi Chiwara wrote:
> Hi, I would like to know if you can run a mpi cluster using dhcp and
> ddns. Is this feasible or will the time spent binding the hostnames of
> the nodes to the dynamically issued ip addresses be detrimental to the
> operation of the cluster?
No, this is generally not a problem as long as machines don't change IP
addresses during the running of an MPI job.
More specifically: if you lamboot LAM across a set of nodes, if any of
those nodes change IP address while LAM is still booted, you'll likely
have problems.
If you can guarantee that either the DHCP leases will be long/infinite, or
that your DHCP server will always re-issue the same IP address upon lease
renewal, it should be fine.
--
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/
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