Bug#1090218: eztrace: FTBFS: failing tests

[Santiago Vila]

El 16/12/24 a las 19:24, Samuel Thibault escribió:
>> During a rebuild of all packages in unstable, your package failed to build:
> 
> [...]
> mpirun.mpich -np 2 --bind-to none ./build-mpich/test/mpi/mpi_ping | grep "10000	16" || touch debian/failed
> This program requires 2 MPI processes, aborting...
> This program requires 2 MPI processes, aborting...
> [...]
> 
> This is a really simple MPI smoketest without usage of eztrace, which
> shows that mpich fails completely in this environment. I am thus
> reassigning there.

Hi. Several openmpi packages required changes from
openmpi 4 to openmpi 5 related with the way oversubscribe is enabled.

I adjusted a few of them in debian-science, and now they build from source
even on machines with a single CPU.

Your package appears to enable oversubscribe, but it seems it's not working
as expected (the machine used to file this bug had 2 CPUs). In fact I
have a successful build of eztrace version 2.1.1-4 in trixie dated 2024-12-05
so the failure only seems to happen in unstable.

My bet is that maybe this is not a bug in mpich, but just that the
oversubscribe stuff in debian/rules is not working as expected and
just needs some fine-tuning. Unfortunately I don't know enough
about openmpi for this to be more than a bet.

btw: Does the package really uses both mpich and openmpi?

Thanks.