C++ Ptr::get方法代码示例

void performNodalMeshReduction(
    stk::mesh::Part &samplePart,
    stk::mesh::BulkData& bulkData)
{
  const stk::mesh::EntityRank nodeEntityRank(0);
  const stk::mesh::MetaData &metaData = stk::mesh::MetaData::get(bulkData);

  std::vector<stk::mesh::Entity *> sampleNodes;
  stk::mesh::get_selected_entities(samplePart, bulkData.buckets(nodeEntityRank), sampleNodes);

  const stk::mesh::Selector locallyOwned = stk::mesh::MetaData::get(bulkData).locally_owned_part();

  std::vector<stk::mesh::Entity *> relatedEntities;
  typedef boost::indirect_iterator<std::vector<stk::mesh::Entity *>::const_iterator> EntityIterator;
  for (EntityIterator it(sampleNodes.begin()), it_end(sampleNodes.end()); it != it_end; ++it) {
    const stk::mesh::PairIterRelation relations = it->relations();
    typedef stk::mesh::PairIterRelation::first_type RelationIterator;
    for (RelationIterator rel_it = relations.first, rel_it_end = relations.second; rel_it != rel_it_end; ++rel_it) {
      const Teuchos::Ptr<stk::mesh::Entity> relatedEntity(rel_it->entity());
      if (Teuchos::nonnull(relatedEntity) && locallyOwned(*relatedEntity)) {
        relatedEntities.push_back(relatedEntity.get());
      }
    }
  }
  std::sort(relatedEntities.begin(), relatedEntities.end(), stk::mesh::EntityLess());
  relatedEntities.erase(
      std::unique(relatedEntities.begin(), relatedEntities.end(), stk::mesh::EntityEqual()),
      relatedEntities.end());

  std::vector<stk::mesh::Entity *> sampleClosure;
  stk::mesh::find_closure(bulkData, relatedEntities, sampleClosure);

  // Keep only the closure, remove the rest, by decreasing entityRanks
  {
    const stk::mesh::Selector ownedOrShared = metaData.locally_owned_part() | metaData.globally_shared_part();
    typedef boost::indirect_iterator<std::vector<stk::mesh::Entity *>::const_iterator> EntityIterator;
    EntityIterator allKeepersEnd(sampleClosure.end());
    const EntityIterator allKeepersBegin(sampleClosure.begin());
    for (stk::mesh::EntityRank candidateRankCount = metaData.entity_rank_count(); candidateRankCount > 0; --candidateRankCount) {
      const stk::mesh::EntityRank candidateRank = candidateRankCount - 1;
      const EntityIterator keepersBegin = std::lower_bound(allKeepersBegin, allKeepersEnd,
                                                           stk::mesh::EntityKey(candidateRank, 0),
                                                           stk::mesh::EntityLess());
      const EntityIterator keepersEnd = allKeepersEnd;
      std::vector<stk::mesh::Entity *> candidates;
      stk::mesh::get_selected_entities(ownedOrShared, bulkData.buckets(candidateRank), candidates);
      {
        BulkModification modification(bulkData);
        std::set_difference(candidates.begin(), candidates.end(),
                            keepersBegin.base(), keepersEnd.base(),
                            EntityDestructor(modification),
                            stk::mesh::EntityLess());
      }
      allKeepersEnd = keepersBegin;
    }
  }
}

void initializePrec(
  const PreconditionerFactoryBase<Scalar> &precFactory,
  const Teuchos::RCP<const LinearOpBase<Scalar> > &fwdOp,
  const Teuchos::Ptr<PreconditionerBase<Scalar> > &prec,
  const ESupportSolveUse supportSolveUse = SUPPORT_SOLVE_UNSPECIFIED
  )
{
  precFactory.initializePrec(defaultLinearOpSource(fwdOp), prec.get(),
    supportSolveUse);
}

void ObserverImpl::observeSolution (
  double stamp, const Epetra_Vector& nonOverlappedSolution,
  const Teuchos::Ptr<const Epetra_Vector>& nonOverlappedSolutionDot)
{
  // If solution == "Steady" or "Continuation", we need to update the solution
  // from the initial guess prior to writing it out, or we will not get the
  // proper state of things like "Stress" in the Exodus file.
  {
    // Evaluate state field manager
    if(nonOverlappedSolutionDot != Teuchos::null)
      app_->evaluateStateFieldManager(stamp, nonOverlappedSolutionDot.get(),
                                      NULL, nonOverlappedSolution);
    else
      app_->evaluateStateFieldManager(stamp, NULL, NULL, nonOverlappedSolution);

    // Renames the New state as the Old state in preparation for the next step
    app_->getStateMgr().updateStates();

#ifdef ALBANY_PERIDIGM
#if defined(ALBANY_EPETRA)
    const Teuchos::RCP<LCM::PeridigmManager>&
      peridigmManager = LCM::PeridigmManager::self();
    if (Teuchos::nonnull(peridigmManager)) {
      peridigmManager->writePeridigmSubModel(stamp);
      peridigmManager->updateState();
    }
#endif
#endif
  }

  //! update distributed parameters in the mesh
  Teuchos::RCP<DistParamLib> distParamLib = app_->getDistParamLib();
  distParamLib->scatter();
  DistParamLib::const_iterator it;
  Teuchos::RCP<const Epetra_Comm> comm = app_->getEpetraComm();
  for(it = distParamLib->begin(); it != distParamLib->end(); ++it) {
    app_->getDiscretization()->setFieldT(*it->second->overlapped_vector(), it->second->name(),
                                        /*overlapped*/ true);
  }

  StatelessObserverImpl::observeSolution(stamp, nonOverlappedSolution,
                                         nonOverlappedSolutionDot);
}

void
Piro::MatrixFreeLinearOp<Scalar>::applyImpl(
    const Thyra::EOpTransp M_trans,
    const Thyra::MultiVectorBase<Scalar> &X,
    const Teuchos::Ptr<Thyra::MultiVectorBase<Scalar> > &Y,
    const Scalar alpha,
    const Scalar beta) const
{
  using Teuchos::RCP;
  using Teuchos::Ptr;

  TEUCHOS_TEST_FOR_EXCEPTION(
      !this->opSupported(M_trans),
      Thyra::Exceptions::OpNotSupported,
      this->description() << " does not support operation " << Thyra::toString(M_trans));

  TEUCHOS_TEST_FOR_EXCEPTION(
      !X.range()->isCompatible(*this->domain()),
      Thyra::Exceptions::IncompatibleVectorSpaces,
      "Domain of " << this->description() << ": " << this->domain()->description() <<
      " is not compatible with column space of " << X.description() << ": " << X.range()->description());

  TEUCHOS_TEST_FOR_EXCEPTION(
      !Y->range()->isCompatible(*this->range()),
      Thyra::Exceptions::IncompatibleVectorSpaces,
      "Range of " << this->description() << ": " << this->range()->description() <<
      " is not compatible with column space of " << Y->description() << ": " << Y->range()->description());

  TEUCHOS_TEST_FOR_EXCEPTION(
      !Y->domain()->isCompatible(*X.domain()),
      Thyra::Exceptions::IncompatibleVectorSpaces,
      "Row space of " << Y->description() << ": " << Y->domain()->description() <<
      " is not compatible with row space of " << X.description() << ": " << X.domain()->description());

  TEUCHOS_TEST_FOR_EXCEPTION(
      &X == Y.get(),
      std::logic_error,
      "X and Y arguments are both aliases of " << X.description());

  if (alpha == Teuchos::ScalarTraits<Scalar>::zero()) {
    // Y <- beta * Y
    Thyra::Vt_S(Y, beta);
    return;
  }

  typedef typename Teuchos::ScalarTraits<Scalar>::magnitudeType ScalarMagnitude;

  RCP<const Thyra::VectorBase<Scalar> > x_dot_base;
  if (basePoint_.supports(Thyra::ModelEvaluatorBase::IN_ARG_x_dot)) 
    x_dot_base = basePoint_.get_x_dot();

  RCP<const Thyra::VectorBase<Scalar> > x_base = basePoint_.get_x();
  if (Teuchos::is_null(x_base)) {
    x_base = model_->getNominalValues().get_x();
  }
  x_base.assert_not_null();

  const ScalarMagnitude norm_x_base = Thyra::norm_2(*x_base);

  // Number of columns common to both vectors X and Y
  // (X and Y have compatible row spaces)
  const Thyra::Ordinal colCount = X.domain()->dim();
  for (Teuchos::Ordinal j = Teuchos::Ordinal(); j < colCount; ++j) {
    const RCP<const Thyra::VectorBase<Scalar> > X_vec = X.col(j);
    const RCP<Thyra::VectorBase<Scalar> > Y_vec = Y->col(j);

    const ScalarMagnitude norm_dx = Thyra::norm_2(*X_vec);

    if (norm_dx == Teuchos::ScalarTraits<ScalarMagnitude>::zero()) {
      if (beta == Teuchos::ScalarTraits<Scalar>::zero()) {
        // Y_vec <- 0
        Thyra::put_scalar(Teuchos::ScalarTraits<ScalarMagnitude>::zero(), Y_vec.ptr());
      } else {
        // Y_vec <- beta * Y_vec
        Thyra::scale(beta, Y_vec.ptr());
      }
    } else {
      // Scalar perturbation
      const ScalarMagnitude relative_pert_ratio = static_cast<ScalarMagnitude>(lambda_);
      const ScalarMagnitude eta = (relative_pert_ratio * ((norm_x_base / norm_dx) + relative_pert_ratio));

      // Compute perturbed residual
      // Dynamic: f_pert <- f(x_dot_base + eta * (W_alpha * X), x_base + eta * (W_beta * X))
      // Static: f_pert <- f(x_base + eta * X)
      const RCP<Thyra::VectorBase<Scalar> > f_pert = Thyra::createMember(this->range());
      {
        Thyra::ModelEvaluatorBase::InArgs<Scalar> pertInArgs = model_->createInArgs();
        {
          pertInArgs.setArgs(basePoint_);

          const bool isDynamic = Teuchos::nonnull(x_dot_base);

          if (isDynamic) {
            const RCP<Thyra::VectorBase<Scalar> > x_dot_pert = Thyra::createMember(this->domain());
            const Scalar W_alpha = pertInArgs.get_alpha();
            Thyra::V_VpStV<Scalar>(x_dot_pert.ptr(), *x_dot_base, W_alpha * eta, *X_vec);
            pertInArgs.set_x_dot(x_dot_pert);
          }

          const RCP<Thyra::VectorBase<Scalar> > x_pert = Thyra::createMember(this->domain());
//.........这里部分代码省略.........