Control: tag -1 + upstream Lucas Nussbaum writes: > Source: dune-grid-glue > Version: 2.7.0-2 >> what(): Dune::Exception >> [eh:/<<PKGBUILDDIR>>/dune/grid-glue/test/ringcommtest.cc:24]: MPI ERROR -- >> MPI_ERR_TAG: invalid tag >> what(): Dune::Exception >> [eh:/<<PKGBUILDDIR>>/dune/grid-glue/test/ringcommtest.cc:24]: MPI ERROR -- >> MPI_ERR_TAG: invalid tag
The is probably caused by `int tag = 12345678;` in the code while OpenMPI might have a lower limit, see [1]. [1]: https://github.com/open-mpi/ompi/issues/6940 Ansgar
