[Dune] [dune-istl] mpi error due to wrong send rank

[Simon Praetorius]

Hi Markus,

a "small" test case is not so easy to create, but I managed to put
everything into a separate independent dune project that can be found on

> https://gitlab.mn.tu-dresden.de/spraetor/amg_error

Simply build with

> dunecontrol --current all

and run with

> ./build-cmake/src/amg_error (WORKS)
> mpirun -np 2 ./build-cmake/src/amg_error (ERROR)

It uses dune-functions for the assembling and dune-istl for the linear
algebra data structures.

I have tested the code with dune-2.6 and the latest git version.

My system configuration is:

Linux Mint 19.1 Tessa 64-bit
Kernel Linux 4.15.0-47-generic x86_64

GCC/7.3.0
OpenMPI/3.1.1
CMake/3.11.4
binutils/2.30
OpenBLAS/0.3.1
SuiteSparse/5.1.2
SuperLU/5.2.1
METIS/5.1.0
ParMETIS/4.0.3

Best regards,
Simon

On 17.06.19 08:13, Markus Blatt wrote:
> Hi,
>
> Please provide a test case and tell us what system you are on (Linux version
> and MPI version).
>
> Cheers,
>
> Markus