[Dune] dune 2.4.1 and parallelism

[Marco Cisternino]

Thank you Markus!!
That's exactly what I needed. Now it works.
Could you tell if your hint is reported anywhere in dune documentation, please?

Thanks again.
Marco

________________________________________
Da: Markus Blatt <markus at dr-blatt.de>
Inviato: lunedì 13 giugno 2016 12.08.39
A: Marco Cisternino
Cc: dune at dune-project.org
Oggetto: Re: [Dune] dune 2.4.1 and parallelism

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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