OilfieldToolsNet/opm-simulators
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Unconditionally instantiate the (possibly fake) MPI helper.

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This reduces the difference between flow and flow_mpi. For builds
without MPI, the fake helper from Dune is instantiated, which has
the same interface.
This commit is contained in:
Atgeirr Flø Rasmussen 2015-12-08 09:57:43 +01:00
parent 7c5256031c
commit be9b6a3cd2
1 changed files with 3 additions and 6 deletions
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9
examples/flow.cpp
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@ -124,16 +124,13 @@ main(int argc, char** argv)
try
{
using namespace Opm;
#if USE_DUNE_CORNERPOINTGRID
// Must ensure an instance of the helper is created to initialise MPI.
// For a build without MPI the Dune::FakeMPIHelper is used, so rank will
// be 0 and size 1.
const Dune::MPIHelper& mpi_helper = Dune::MPIHelper::instance(argc, argv);
const int mpi_rank = mpi_helper.rank();
const int mpi_size = mpi_helper.size();
#else
// default values for serial run
const int mpi_rank = 0;
const int mpi_size = 1;
#endif
// Write parameters used for later reference. (only if rank is zero)
const bool output_cout = ( mpi_rank == 0 );