Panzer_STK_WorksetFactory.cpp

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//           Panzer: A partial differential equation assembly
//       engine for strongly coupled complex multiphysics systems
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#include <Panzer_SetupPartitionedWorksetUtilities.hpp>
#include "Panzer_STK_WorksetFactory.hpp"

#include "Panzer_LocalMeshInfo.hpp"

#include "Panzer_WorksetFactoryBase.hpp"
#include "Panzer_STK_SetupUtilities.hpp"
#include "Panzer_STK_Interface.hpp"
#include "Panzer_STK_LocalMeshUtilities.hpp"



namespace panzer_stk {

void WorksetFactory::setMesh(const Teuchos::RCP<const panzer_stk::STK_Interface> & mesh)
{
   mesh_ = mesh;
}

Teuchos::RCP<std::map<unsigned,panzer::Workset> > WorksetFactory::
getSideWorksets(const panzer::WorksetDescriptor & desc,
                const panzer::WorksetNeeds & needs) const
{
  TEUCHOS_ASSERT(desc.useSideset());

  return panzer_stk::buildBCWorksets(*mesh_,needs,desc.getElementBlock(0),desc.getSideset());
}

Teuchos::RCP<std::map<unsigned,panzer::Workset> > WorksetFactory::
getSideWorksets(const panzer::WorksetDescriptor & desc,
                const panzer::WorksetNeeds & needs_a,
                const panzer::WorksetNeeds & needs_b) const
{
  // ensure that this is a interface descriptor
  TEUCHOS_ASSERT(desc.connectsElementBlocks());
  TEUCHOS_ASSERT(desc.getSideset(0)==desc.getSideset(1));
  return panzer_stk::buildBCWorksets(*mesh_, needs_a, desc.getElementBlock(0),
                                             needs_b, desc.getElementBlock(1),
                                             desc.getSideset(0));
}

Teuchos::RCP<std::vector<panzer::Workset> > WorksetFactory::
getWorksets(const panzer::WorksetDescriptor & worksetDesc,
            const panzer::WorksetNeeds & needs) const
{

  if(worksetDesc.requiresPartitioning()){
    if(mesh_info_ == Teuchos::null){
      auto mesh_info = Teuchos::rcp(new panzer::LocalMeshInfo);
      panzer_stk::generateLocalMeshInfo(*mesh_,*mesh_info);
      mesh_info_ = mesh_info;
    }
    return panzer::buildPartitionedWorksets(*mesh_info_,worksetDesc,needs);
  } else if(!worksetDesc.useSideset()) {
    // The non-partitioned case always creates worksets with just the
    // owned elements.  CLASSIC_MODE gets the workset size directly
    // from needs that is populated externally. As we transition away
    // from classic mode, we need to create a copy of needs and
    // override the workset size with values from WorksetDescription.
    if (worksetDesc.getWorksetSize() == panzer::WorksetSizeType::CLASSIC_MODE)
      return panzer_stk::buildWorksets(*mesh_,worksetDesc.getElementBlock(), needs);
    else {
      int worksetSize = worksetDesc.getWorksetSize();
      if (worksetSize == panzer::WorksetSizeType::ALL_ELEMENTS) {
        std::vector<stk::mesh::Entity> elements;
        mesh_->getMyElements(worksetDesc.getElementBlock(),elements);
        worksetSize = elements.size();
      }
      panzer::WorksetNeeds tmpNeeds(needs);
      tmpNeeds.cellData = panzer::CellData(worksetSize,needs.cellData.getCellTopology());
      return panzer_stk::buildWorksets(*mesh_,worksetDesc.getElementBlock(), needs);
    }
  }
  else if(worksetDesc.useSideset() && worksetDesc.sideAssembly()) {
    // uses cascade by default, each subcell has its own workset
    return panzer_stk::buildWorksets(*mesh_,needs,worksetDesc.getSideset(),worksetDesc.getElementBlock(),true);
  }
  else {
    TEUCHOS_ASSERT(false);
  }
}

}