On Mon, 2006-11-27 at 17:21 -0800, Matt Leininger wrote:
> On Mon, 2006-11-27 at 16:45 -0800, Matt Leininger wrote:
> > Has anyone testing OMPI's alltoall at > 2000 MPI tasks? I'm seeing each
> > MPI task eat up > 1GB of memory (just for OMPI - not the app).
>
> I gathered some more data usin
On Tue, 2006-11-28 at 09:28 -0800, Matt Leininger wrote:
> On Tue, 2006-11-28 at 10:00 -0700, Li-Ta Lo wrote:
> > On Mon, 2006-11-27 at 17:21 -0800, Matt Leininger wrote:
> > > On Mon, 2006-11-27 at 16:45 -0800, Matt Leininger wrote:
> > > > Has anyone testing OMPI's alltoall at > 2000 MPI tasks?
On Tue, 2006-11-28 at 10:00 -0700, Li-Ta Lo wrote:
> On Mon, 2006-11-27 at 17:21 -0800, Matt Leininger wrote:
> > On Mon, 2006-11-27 at 16:45 -0800, Matt Leininger wrote:
> > > Has anyone testing OMPI's alltoall at > 2000 MPI tasks? I'm seeing each
> > > MPI task eat up > 1GB of memory (just for O
On Mon, 2006-11-27 at 17:21 -0800, Matt Leininger wrote:
> On Mon, 2006-11-27 at 16:45 -0800, Matt Leininger wrote:
> > Has anyone testing OMPI's alltoall at > 2000 MPI tasks? I'm seeing each
> > MPI task eat up > 1GB of memory (just for OMPI - not the app).
>
> I gathered some more data usin
On Mon, 2006-11-27 at 21:11 -0500, George Bosilca wrote:
> Which version of Open MPI are you using ? We can figure out what's
> wrong if we have the output of "ompi_info" and "ompi_info --param all
> all".
Forgot the "ompi_info --param all all". It's attached.
- Matt
>
> I wonder if so
On Mon, 2006-11-27 at 21:11 -0500, George Bosilca wrote:
> Which version of Open MPI are you using ? We can figure out what's
> wrong if we have the output of "ompi_info" and "ompi_info --param all
> all".
zeus287@mlleinin:./ompi_info
Open MPI: 1.2b1svn11252006
Open MPI SVN
Which version of Open MPI are you using ? We can figure out what's
wrong if we have the output of "ompi_info" and "ompi_info --param all
all".
I wonder if some of the memory is not related to the size of the
shared memory file. The default way to compute the size of the shared
memory file
On Mon, 2006-11-27 at 16:45 -0800, Matt Leininger wrote:
> Has anyone testing OMPI's alltoall at > 2000 MPI tasks? I'm seeing each
> MPI task eat up > 1GB of memory (just for OMPI - not the app).
I gathered some more data using the alltoall benchmark in mpiBench.
mpiBench is pretty smart abou
Has anyone testing OMPI's alltoall at > 2000 MPI tasks? I'm seeing each
MPI task eat up > 1GB of memory (just for OMPI - not the app).
Thanks,
- Matt
