assert failed when executing with --enable-unique-id option

[fdrui]

Hi everyone !
I am currently testing the examples of libMesh with the purpose to use libMesh as a mesh backend in a finite element code for structure and fluid dynamics.
I would like to use the "unique id" information for each mesh object, thus I use the compilation option --enable-unique-id. The compilation is made by spack from the master branch of the libMesh repository, using gcc11 and OpenMPI v4.1.2. The other options I use are --enable-parmesh, --enable-metis and --enable-parmetis, PETSc, VTK.
When I compile and execute the example subdomains_ex1 on 2 procs, I get the following error:

[0] src/mesh/distributed_mesh.C, line 1093, compiled Oct 25 2022 at 13:46:43

[1] src/mesh/distributed_mesh.C, line 1093, compiled Oct 25 2022 at 13:46:43
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 0 in communicator MPI_COMM_WORLD
with errorcode 1.

I suppose this happens when the method prepare_for_use() is called.
Has anyone an idea about what I am doing wrong?
Thank you for your help!
F.D.

[roystgnr]

I'm afraid you were just bitten by the OpenMPI 4.1.2 bug here:

open-mpi/ompi#10525

If you can downgrade your OpenMPI to 4.1.1 (or if you're feeling daring, upgrade; skimming over https://github.com/open-mpi/ompi/tags I'd guess that 4.1.5rc1 and 5.0.0rc9 have the patch by now) that should fix it.

[fdrui]

Now it's working! Thank you very much!