On Tue, 21 Aug 2007, Sam Steingold wrote:
> I am trying to run lamboot twice on the same computer, first time as
> user foo, the second time as user bar, with different bhost file
It should work even with the same bhost file. The daemons are started
as different users, have different ports and different temporary
directories (/tmp/lam-$USER@$NODE), so there is no conflict.
> the server process never receives the results and thus never sends
> out any further tasks - i.e., everything just sits there and nothing
> happens.
Is this just a new development of yours or was this same code tested
on a different parallel machine/cluster or with a different MPI
library ? Because this would point more towards a bug in your code
rather than a bug in LAM/MPI...
> what does "-o" mean? (I guess "-n" is "rank", but the lamd manual
> does not mention any command line options)
The daemon should never be started by hand, it's mpirun and possibly
hboot on a remote node (hboot also being a "stealth" binary just like
lamd) which know how to start lamd, so knowing the options to lamd
doesn't make much sense... I've been using LAM/MPI for many years,
integrated it with various batch/queueing systems and still don't know
lamd's options ;-)
> is it at all possible to do what I want?
Sure, I've been using many times applications compiled with LAM/MPI in
the way that you describe.
--
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]
|
