The two params are the result of user requests for two command line options:
—oversubscribe and —no-oversubscribe. These were created for people working in
environments where the system admin set a default one way or the other, and the
user wanted to override it. The specific request was for a s
On 17/04/2019 16.51, Jeff Squyres (jsquyres) via users wrote:
> On Apr 17, 2019, at 3:38 AM, Steffen Christgau
> wrote:
>> was configured with nothing more than a --prefix and
>> --enable-mpi-fortran. I checked for updates and it appears that there
>> was an issue until 4.0.1 with oversubscriptio
On Apr 17, 2019, at 3:38 AM, Steffen Christgau
wrote:
>
> as written in my original post, I'm using a custom build of 4.0.0 which
I'm sorry -- I missed that (it was at the bottom; my bad).
> was configured with nothing more than a --prefix and
> --enable-mpi-fortran. I checked for updates and
Hi Jeff,
as written in my original post, I'm using a custom build of 4.0.0 which
was configured with nothing more than a --prefix and
--enable-mpi-fortran. I checked for updates and it appears that there
was an issue until 4.0.1 with oversubscription. The changelog states
> - Fix a problem with t
Steffen --
What version of Open MPI are you using?
> On Apr 16, 2019, at 9:21 AM, Steffen Christgau
> wrote:
>
> Hi Tim,
>
> it helps, up to four processes. But it has two drawbacks. 1) Using more
> cores/threads than the machine provides (so the actual
> over-subscription) is still not pos
Hi Tim,
it helps, up to four processes. But it has two drawbacks. 1) Using more
cores/threads than the machine provides (so the actual
over-subscription) is still not possible. 2) it still requires an
additional command line argument.
What I'd like to see is that a call of mpirun with an arbitr
Hi Steffen,
I'm not sure if this will help you (I'm by far no expert) but the mailing
group pointed by to using:
mpirun --use-hwthread-cpus
to solve something similar.
Kind regards,
Tim
On Tue, 16 Apr 2019 at 19:01, Steffen Christgau
wrote:
> Hi everyone,
>
> on my 2 cores/4 threads developm
Hi everyone,
on my 2 cores/4 threads development platform I want to start programs
via mpirun with over-subscription enabled by default. I have some
external packages which have tests that use more than 2 processes. They
all fail because Open MPI refuses them to run due to over-subscription.
I kno
