Panzer_SetupPartitionedWorksetUtilities.cpp

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//           Panzer: A partial differential equation assembly
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#include "Panzer_SetupPartitionedWorksetUtilities.hpp"

#include "Panzer_LocalPartitioningUtilities.hpp"
#include "Panzer_Workset.hpp"
#include "Panzer_WorksetNeeds.hpp"
#include "Panzer_WorksetDescriptor.hpp"

namespace panzer
{

namespace
{

template<typename LO, typename GO>
void
convertMeshPartitionToWorkset(const panzer::LocalMeshPartition<LO,GO> & partition,
                              const panzer::WorksetNeeds & needs,
                              panzer::Workset & workset)
{
  workset.setup(partition, needs);

  workset.num_cells = partition.num_owned_cells + partition.num_ghstd_cells + partition.num_virtual_cells;
  workset.subcell_dim = -1;

}

}

Teuchos::RCP<std::vector<panzer::Workset> >  
buildPartitionedWorksets(const panzer::LocalMeshInfo<int,panzer::Ordinal64> & mesh_info,
                         const panzer::WorksetDescriptor & description,
                         const panzer::WorksetNeeds & needs)
{

  Teuchos::RCP<std::vector<panzer::Workset> > worksets = Teuchos::rcp(new std::vector<panzer::Workset>());

  // Make sure it makes sense to partition
  TEUCHOS_ASSERT(description.requiresPartitioning());

  // Each partition represents a chunk of the mesh
  std::vector<panzer::LocalMeshPartition<int,panzer::Ordinal64> > partitions;
  panzer::generateLocalMeshPartitions<int,panzer::Ordinal64>(mesh_info, description, partitions);

  for(const auto & partition : partitions){
    worksets->push_back(panzer::Workset());
    convertMeshPartitionToWorkset<int,panzer::Ordinal64>(partition, needs, worksets->back());
  }

  return worksets;

}

}