On Thu, 10 Apr 2003, Mike Sullivan wrote:
> What is the status of bproc support in LAM?
The status is very good in CVS. :-)
If you get a CVS copy of LAM and build LAM with bproc support (LAM's
configure script should automatically find the bproc libraries if you have
them installed in the default locations), "lamboot" will automatically use
bproc support when it is run on a bproc head node. You can run the new
"laminfo" command after you build and install LAM to see if it picked up
bproc support properly.
See http://www.lam-mpi.org/cvs/ for details on obtaining a CVS version of
LAM. This is on the road to LAM/MPI 7.0, which we hope to release in May
sometime (cross your fingers!).
You still specify a hostfile to lamboot indicating which bproc nodes you
want to run on. So the normal running mode for LAM is still the same as
everywhere else:
lamboot <hostfile>
mpirun ...
[mpirun ...]
lamhalt
As an added bonus, on bproc clusters, LAM's "N" and "C" notation to mpirun
will not run MPI applications on the bproc head node by default. For
example, if you lamboot 4 client nodes from the head node and "mpirun N
my_mpi_app", that will launch 4 apps on the client nodes, and nothing on
the head node.
See the lamssi_boot(7) man page and docs/bproc.txt (both in CVS) for more
details. Note that the latter file will likely be changing to latex/PDF
over the next month or so, so its location/name will likely change.
--
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/
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