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FS#140 - DGFParser does not work with Lam-mpi
User who did this: - Markus Blatt (mblatt)

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I just tried to get dgfparser running for lam-mpi by simply
substituting int with MPI_Comm and -1 with MPI_COMM_WORLD.

Now I have the problem that HAVE_MPI_CPP is not set in my case (should
it be?) and therefore it is assumed that I do not have
MPI and a nonexistent constructor of YaspGrid is called.

Even with this changes the tests do not compile, when I try to build
tester I get:

In file included from main.cc:2:
../gridtype.hh:141:4: warning: #warning --- No GRIDTYPE defined,
defaulting to YASPGRID
../gridtype.hh:159:1: warning: "MPI_COMM_WORLD" redefined
In file included from ../../../../../dune/grid/yaspgrid/grids.hh:13,
                 from ../../../../../dune/grid/yaspgrid.hh:10,
                 from ../dgfyasp.hh:3,
                 from ../gridtype.hh:138,
                 from main.cc:2:
/usr/lib/lam/include/mpi.h:356:1: warning: this is the location of the
previous definition
main.cc: In function 'int main(int, char**, char**)':
main.cc:20: error: invalid conversion from 'int' to '_comm*'
main.cc:20: error:   initializing argument 2 of
'Dune::GridPtr<GridType>::GridPtr(const char*, _comm*) [with GridType
= Dune::YaspGrid<2, 2>]'
../dgfyasp.cc: In static member function 'static Dune::YaspGrid<dim,
dimworld>* Dune::MacroGrid::Impl<Dune::YaspGrid<dim, dimworld>
>::generate(Dune::MacroGrid&, const char*, _comm*) [with int dim = 2,
int dimworld = 2]':
../dgfparser.hh:104:   instantiated from 'Dune::MacroGrid::operator
GridType*() [with GridType =
Dune::YaspGrid<2, 2>]'
../dgfparser.hh:123:   instantiated from
'Dune::GridPtr<GridType>::GridPtr(const char*, _comm*) [with GridType
= Dune::YaspGrid<2, 2>]'
main.cc:20:   instantiated from here
../dgfyasp.cc:39: error: no matching function for call to
'Dune::YaspGrid<2, 2>::YaspGrid(Dune::FieldVector<double, 2>&,
Dune::FieldVector<int, 2>&, Dune::FieldVector<bool, 2>&, int)'
../../../../../dune/grid/yaspgrid.hh:2175: note: candidates are:
Dune::YaspGrid<dim, dimworld>::YaspGrid(_comm*,
Dune::FieldVector<double, dim>, Dune::FieldVector<int, d>,
Dune::FieldVector<bool, d>, int) [with int dim = 2, int dimworld = 2]
../../../../../dune/grid/yaspgrid.hh:2133: note:                
Dune::YaspGrid<2, 2>::YaspGrid(const Dune::YaspGrid<2, 2>&)
make[1]: *** [tester-main.o] Fehler 1
make[1]: Leaving directory
`/home/mblatt/dune/dune-grid/grid/io/file/dgfparser/test'
make: *** [check-am] Fehler 2

There seem to be some serious bugs (not depenedant on lam-mpi).
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