Re: [BProc] Re: More LAM / BProc changes (fwd)

[Daniel G. <dg...@ti...>]

On Tue, Jul 20, 2004 at 09:03:01AM -0500, Brian Barrett wrote:
> On Jul 20, 2004, at 8:08 AM, Thomas Eckert wrote:
> 
> > this thread seems to have slipped off the bproc-list -- most likely I 
> > replied
> > to the wrong message -- so here is a forward of my reply :(
> >
> > I'm interested in the bproc3<->lam-7.0.x results: have you tried 
> > bproc3 with
> > the latest stable lam (7.0.x) and it did not work or are you focusing 
> > on
> > bproc4 now anyway due to other reasons (want to use 2.6-kernels, ...)?
> 
> Luke was using BProc 4, which LAM 7.0.x does not support (LAM 7.1, 
> which just went into beta, supports what is currently in the BProc 4 
> API.  Hopefully, that means it will support BProc 4 when it goes 
> stable).
> 
> If you have any problems using LAM 7.0.x with BProc 3, please let us 
> (the LAM developers) know.  There has been some fairly extensive 
> testing, so I would be surprised if there were problems in that area.

I have recently installed LAM 7.0.2 on a CM3 (BProc 3) cluster.  It mostly
works, but there are a few disturbing glitches:

- I cannot seem to run 2 MPI jobs as the same user simultaneously (on 
different sets of nodes, of course), since when I do the second invocation 
of mpiexec (or its equivalent lamboot/run/lamhalt) it kills the first lamd
on the master node.  It does seem to work for different users, though.

- Just doing lamboot followed by lamhalt (whether or not some mpi job is run)
produces a core dump (I guess it is by lamhalt).  Always.  Running mpiexec does
it too.

???
Daniel

-- 

Dr. Daniel Gruner                        dg...@ti...
Dept. of Chemistry                       dan...@ut...
University of Toronto                    phone:  (416)-978-8689
80 St. George Street                     fax:    (416)-978-5325
Toronto, ON  M5S 3H6, Canada             finger for PGP public key