[dune-fem] using dune-fem-howto

[Dedner, Andreas]

Hi Stefan.

You need to specify which 'flavour' of alugrid you want to use, i.e., which element type (cube or simplex) and (for simplex grids) which refinement type (conforming or non conforming). Using the define in the way you have it the options are

ALUGRID_CONFORM (simplex with conforming refinment using bisectio)
ALUGRID_SIMPLEX (simplex with non conforming refinement using quartering)
ALUGRID_CUBE (cube element with non conforming refinement using quartering)

I hope that solves your problem.

Andreas

PS: please always attach the actual error message you are getting since that significantly helps figuring out what the problem could be

PPS: we are in the process of releasing 2.6 versions of dune-fem and dune-fem-howto. There is a releases/2.6 branch of dune-fem and I think (I can't check at the moment0 also a branch for dune-fem-howto. If not then that's on its way.



________________________________
From: dune-fem <dune-fem-bounces at lists.dune-project.org> on behalf of Stefan Vater <vater at math.fu-berlin.de>
Sent: 10 September 2018 11:29
To: dune-fem at lists.dune-project.org
Subject: [dune-fem] using dune-fem-howto

Hi,

I am trying to understand a bit of dune applied to finite volumes using the
dune-fem-howto. However, that seems to be not really up-to-date at the moment.
I got it to work, going back to the 2.5 release for all modules and setting

-DDUNE_GRID_EXPERIMENTAL_GRID_EXTENSIONS=TRUE
-DDUNE_GRID_GRIDTYPE_SELECTOR=ON

in CMAKE_FLAGS

Now, I would like to test grid adaptation. It seems that in its original state
YASPGRID is used, so there is only uniform refinement. How can I use another
grid, so that there is also adaptive refinement. Changing
target_compile_definitions in CMakeLists.txt to

target_compile_definitions( solution-10.fv PRIVATE
ALUGRID;GRIDDIM=2;WANT_ISTL;POLORDER=1 )

produces compiler errors for me, although dune-alugrid is installed.

Any help is appreciated!

Stefan
--
Stefan Vater
Geophysical Fluid Dynamics
Institut für Mathematik
Freie Universität Berlin
Arnimallee 6, 14195 Berlin, Germany
Phone: +49 (30) 838-75368
e-mail: vater at math.fu-berlin.de



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