[Dune] dune 2.4.1 and parallelism

[Markus Blatt]

Hi,


On Mon, Jun 13, 2016 at 09:14:29AM +0000, Marco Cisternino wrote:
> 
> Direct calls to MPI routines work fine giving parallel outputs. I had to add explicit call to MPI_Init because MPI is not initialize by the helper instance method.

The short and precise answer/help is:
You have to add
add_dune_mpi_flags(targetbinary)
to your CMakeLists.txt.

Otherwise DUNE will assume you want to run without MPI.
Dominics hint's about MPI and compiler apply, too.

Markus

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