Jim, I'm not familiar with intel's built-in iteration over an array of -np values. MTT achieves this 'multiplicative' effect via "funclets" in the INI file. E.g.,
np = &pow(2, 0, &log(2, 60)) So you would insert the above line in the [Test run: intel] section of the INI file. More on the above "funclet" mechanism in MTT here: http://svn.open-mpi.org/trac/mtt/wiki/MTTOverview#Funclets "... &pow returns an array of values from base^min_exponent to base^max_exponent. So in the above "np" example, ... np would be an array of the following values: 1, 2, 4, 8 16, 32." -Ethan On Thu, Oct/19/2006 12:07:42PM, James W. Barker wrote: > Ethan, > > I believe you are correct, $NODES and $NODELIST appear to be the only > environmental variables associated with BProc. It would be nice if > MTT had the "smarts to ... do that for BProc". However, before you > invest any effort in that; how do you currently increase the number > of processors per iteration for tests like the intel test suite? You > can't simply set -np 2 or -np 32 because the intel test suite was > designed to iterate, squaring the number of processors each time the > suite is executed up to (I think) a maximum of 64 processors. > > Thanks, > Jim Barker > > At 03:41 PM 10/18/2006, you wrote: > >On Wed, Oct/18/2006 09:28:01AM, James W. Barker wrote: > >> Ethan, > >> > >> In an email exchange with Jeff Squyres regarding setting the number > >> of processors on a Bproc system the following statement was made: > >> > >> Are you running under bproc or some other scheduler? Right now, MTT > >> understands SLURM, Torque, and LoadLeveler. If you're running under > >> Bproc, we can easily add support for it into MTT (I'll need some > >> information from you since I don't have any BProc systems myself). > >> > >> Jeff went on to say: > >> > >> Ethan Mallove is the engineer at Sun who is heading up most of the > >> MTT efforts these days; the mails go to all of us, so he can reply > >> even when I'm unavailable. > >> > >> So I am asking what information do you need from me to add Bproc > >> support to MTT? > >> > > > >Are NODES and NODELIST the only env vars that BProc uses (I > >gleaned this info from > >http://asci-training.lanl.gov/BProc/)? > > > >MTT is set up to detect environment variables and hostfiles > >used by Slurm, PBS, N1GE, and LoadLeveler and set a max > >value for -np based on those env vars. While we add the > >smarts to MTT to do that for BProc, you could also hardcode > >the -np value (e.g., 2) in your ini's "MPI Details" section > >like so: > > > >exec = mpirun @hosts@ -np 2 --prefix &test_prefix() > >&test_executable() &test_argv() > > > >Thanks, > >Ethan > > > > > >> Thanks, > >> Jim Barker > >> > >> James W. Barker, Ph.D. > >> Los Alamos National Laboratory > >> Computer, Computational and Statistical Sciences Division > >> Advanced Computing Laboratory - Application Communications and > >> Performance Research Team > >> 505-665-9558 > >> > >> > >> _______________________________________________ > >> mtt-users mailing list > >> mtt-us...@open-mpi.org > >> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users > > James W. Barker, Ph.D. > Los Alamos National Laboratory > Computer, Computational and Statistical Sciences Division > Advanced Computing Laboratory - Application Communications and > Performance Research Team > 505-665-9558 > >
