[Pkg-openmpi-maintainers] Bug#850229: openmpi-bin: default for oversubscription changed

[Santiago Vila]

severity 850559 serious
thanks

On Thu, 19 Jan 2017, Graham Inggs wrote:

> On 19/01/2017 13:59, Santiago Vila wrote:
> > That would be somewhere in debian/rules (in dh_auto_build) for the affected
> > packages?
> > Or somewhere else?
> 
> Yes, just add 'export OMPI_MCA_rmaps_base_oversubscribe=1' near the top of
> debian/rules.
> 
> Most MPI programs should already have 'export
> OMPI_MCA_plm_rsh_agent=/bin/false' somewhere, so just below that line would be
> fine.
> 
> Would you please confirm that this fix works for one of the affected packages
> on your setup?

Sorry, my setup is only ready to test packages in the archive (testing or unstable).

I will gladly test any package which is uploaded for unstable.

Dear openmpi people and interested parties: please do agree on the
right fix for this, either following the route suggested by Ansgar
when he reassigned this to openmpi-bin or by adding a few lines to the
debian/rules file of affected packages, as suggested by Graham.

Graham, if you truly think adding a variable is better, please act
accordingly and reassign back to the affected packages.

In either case I'm setting this to serious again because it makes
packages to fail on single-CPU systems, and having more than one CPU is
definitely *not* part of the build-essential definition.

Thanks.