snl_fei_Broker_FEData.hpp

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/*--------------------------------------------------------------------*/
/*    Copyright 2005 Sandia Corporation.                              */
/*    Under the terms of Contract DE-AC04-94AL85000, there is a       */
/*    non-exclusive license for use of this work by or on behalf      */
/*    of the U.S. Government.  Export of this program may require     */
/*    a license from the United States Government.                    */
/*--------------------------------------------------------------------*/

#ifndef _snl_fei_Broker_FEData_hpp_
#define _snl_fei_Broker_FEData_hpp_

#include <fei_macros.hpp>
#include <fei_mpi.h>
#include <snl_fei_Broker.hpp>
#include <fei_FiniteElementData.hpp>
#include <fei_VectorSpace.hpp>
#include <fei_MatrixGraph.hpp>
#include <fei_Matrix_Impl.hpp>
#include <fei_Pattern.hpp>
#include <fei_Vector_Impl.hpp>
#include <fei_ConnectivityBlock.hpp>
#include <snl_fei_LinearSystem_FEData.hpp>
#include <fei_Lookup_Impl.hpp>

#undef fei_file
#define fei_file "snl_fei_Broker_FEData.hpp"
#include <fei_ErrMacros.hpp>

namespace snl_fei {

  class Broker_FEData : public snl_fei::Broker {
  public:
    Broker_FEData(fei::SharedPtr<FiniteElementData> feData,
      fei::SharedPtr<fei::MatrixGraph> matrixGraph,
      int nodeIDType);

    virtual ~Broker_FEData();

    virtual fei::SharedPtr<fei::Vector> createVector(bool isSolutionVector=false)
      {
  fei::SharedPtr<fei::Vector> vptr;
  if (matrixGraph_.get() == NULL) return(vptr);

  if (setStructure() != 0) return(vptr);

        int localsize = matrixGraph_->getRowSpace()->getNumIndices_Owned();
  fei::SharedPtr<fei::Vector> vecptr;
        vecptr.reset(new fei::Vector_Impl<FiniteElementData>(matrixGraph_->getRowSpace(),
                                                   feData_.get(), localsize,
                                                    isSolutionVector));
  return(vecptr);
      }

    virtual fei::SharedPtr<fei::Matrix> createMatrix()
    {
      fei::SharedPtr<fei::Matrix> mptr;
      if (matrixGraph_.get() == NULL) return(mptr);

      if (setStructure() != 0) return(mptr);
      int localsize = matrixGraph_->getRowSpace()->getNumIndices_Owned();

      bool zeroSharedRows = false;
      fei::SharedPtr<fei::Matrix> matptr;
      matptr.reset(new fei::Matrix_Impl<FiniteElementData>(feData_,
            matrixGraph_, localsize, zeroSharedRows));
      return(matptr);
    }

    virtual fei::SharedPtr<fei::LinearSystem> createLinearSystem()
      {
  fei::SharedPtr<fei::LinearSystem> lsptr;
  if (matrixGraph_.get() == NULL) return(lsptr);

  if (setStructure() != 0) return(lsptr);

  snl_fei::LinearSystem_FEData*
    linsysfed = new LinearSystem_FEData(feData_,
                matrixGraph_);
  linsysfed->setLookup(lookup_);
  fei::SharedPtr<fei::LinearSystem> linsysptr(linsysfed);
  return(linsysptr);
      }

    virtual void setMatrixGraph(fei::SharedPtr<fei::MatrixGraph> matrixGraph)
    {
      matrixGraph_ = matrixGraph;
    }

  private:
    int setStructure()
    {
      if (matrixGraph_.get() == NULL) ERReturn(-1);
      if (setStructure_ == true) return(0);

      lookup_ = new fei::Lookup_Impl(matrixGraph_, nodeIDType_);

      CHK_ERR( feData_->setLookup(*lookup_) );

      fei::SharedPtr<fei::VectorSpace> vspace = matrixGraph_->getRowSpace();

      int numLocalNodes = vspace->getNumOwnedAndSharedIDs(nodeIDType_);

      int numElemBlocks = matrixGraph_->getNumConnectivityBlocks();

      int nodeType = 0;
      snl_fei::RecordCollection* nodeRecords = NULL;
      vspace->getRecordCollection(nodeType, nodeRecords);

      int* intData = new int[numElemBlocks*3];
      int* numElemsPerBlock =       intData;
      int* numNodesPerElem =        intData+numElemBlocks;
      int* elemMatrixSizePerBlock = intData+2*numElemBlocks;
      int i;

      std::vector<int> elemBlockIDs;
      CHK_ERR( matrixGraph_->getConnectivityBlockIDs( elemBlockIDs) );

      for(i=0; i<numElemBlocks; ++i) {
        const fei::ConnectivityBlock* cblock =
          matrixGraph_->getConnectivityBlock(elemBlockIDs[i]);
        if (cblock==NULL) return(-1);
        numElemsPerBlock[i] = cblock->getConnectivityIDs().size();
        numNodesPerElem[i] = cblock->getRowPattern()->getNumIDs();
        elemMatrixSizePerBlock[i] = cblock->getRowPattern()->getNumIndices();
      }

      int numSharedNodes = 0;
      CHK_ERR( vspace->getNumSharedIDs(nodeIDType_, numSharedNodes) );

      int numLagrangeConstraints = matrixGraph_->getLocalNumLagrangeConstraints();

      CHK_ERR( feData_->describeStructure(numElemBlocks,
            numElemsPerBlock,
            numNodesPerElem,
            elemMatrixSizePerBlock,
            numLocalNodes,
            numSharedNodes,
            numLagrangeConstraints) );

      std::map<int,fei::ConnectivityBlock*>::const_iterator
        cdb_iter = matrixGraph_->getConnectivityBlocks().begin();

      std::vector<int> nodeNumbers, numDofPerNode, dof_ids;
      int total_num_dof = 0;
      for(i=0; i<numElemBlocks; ++i, ++cdb_iter) {
        fei::ConnectivityBlock* cblock = (*cdb_iter).second;
        fei::Pattern* pattern = cblock->getRowPattern();

        int numConnectedNodes = pattern->getNumIDs();
        nodeNumbers.resize(numConnectedNodes);
        numDofPerNode.resize(numConnectedNodes);
        int* nodeNumPtr = &nodeNumbers[0];
        int* numDofPtr = &numDofPerNode[0];

        //For the calls to FiniteElementData::setConnectivity, we're going to
        //need a list of num-dof-per-node. So construct that now.
        const int* numFieldsPerID = pattern->getNumFieldsPerID();
        const int* fieldIDs = pattern->getFieldIDs();

        int foffset = 0;
        for(int ii=0; ii<numConnectedNodes; ++ii) {
          int dof = 0;
          for(int f=0; f<numFieldsPerID[ii]; ++f) {
            dof += vspace->getFieldSize(fieldIDs[foffset++]);
          }
          numDofPtr[ii] = dof;
          total_num_dof += dof;
        }

        dof_ids.resize(total_num_dof, 0);
        int* dof_ids_ptr = &dof_ids[0];

        //Next we'll loop over the connectivity-lists in this block,
        //making a call to FiniteElementData::setConnectivity for each one.

        std::map<int,int>& elemIDs = cblock->getConnectivityIDs();
        int numElems = elemIDs.size();
        int* nodes = &(cblock->getRowConnectivities()[0]);

        int offset = 0;
        for(int elem=0; elem<numElems; ++elem) {
          for(int n=0; n<numConnectedNodes; ++n) {
            fei::Record<int>* node = nodeRecords->getRecordWithLocalID(nodes[offset++]);
            nodeNumPtr[n] = node->getNumber();
          }

          CHK_ERR( feData_->setConnectivity(elemBlockIDs[i], elem,
                numConnectedNodes,
                nodeNumPtr, numDofPtr, dof_ids_ptr));
        }//end for(...numElems...)
      }//end for(...numElemBlocks...)

      delete [] intData;

      setStructure_ = true;
      return(0);
    }

    fei::SharedPtr<FiniteElementData> feData_;
    fei::SharedPtr<fei::MatrixGraph> matrixGraph_;

    int nodeIDType_;
    bool setStructure_;
    bool setMatrixMatrixGraph_;

    fei::Lookup_Impl* lookup_;
  };//class Broker_FEData
}//namespace snl_fei


#endif // _snl_fei_Broker_FEData_hpp_