On Tue, 9 Aug 2005, Jim Lasc wrote:
> >does it mean to add a node in a batch-scheduled environment?
> I thought it was possible NOT to give the nodes in advance (is it?)
In a batch environment, the jobs are not free to choose their nodes as
they will - they get one or more nodes as decided by the scheduler and
that's it. It's possible however to start a LAM universe on a subset
of these nodes and to want to expand it later up to the total number
of nodes allocated, in which case the process start-up mechanism of
the batch environment could be used.
> just supposed it shouldn't be difficult to let mpich or lam/mpi
> "detect the PC's with mpi installed on it by itself ???).
No, you can write such a script for yourself by taking into
consideration the particular setup of your computers. A generic
solution is not offered here.
--
Bogdan Costescu
IWR - Interdisziplinaeres Zentrum fuer Wissenschaftliches Rechnen
Universitaet Heidelberg, INF 368, D-69120 Heidelberg, GERMANY
Telephone: +49 6221 54 8869, Telefax: +49 6221 54 8868
E-mail: Bogdan.Costescu_at_[hidden]
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