/usr/include/trilinos/Thyra_TpetraMultiVector_def.hpp is in libtrilinos-thyra-dev 12.12.1-5.
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// ***********************************************************************
//
// Thyra: Interfaces and Support for Abstract Numerical Algorithms
// Copyright (2004) Sandia Corporation
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#ifndef THYRA_TPETRA_MULTIVECTOR_HPP
#define THYRA_TPETRA_MULTIVECTOR_HPP
#include "Thyra_TpetraMultiVector_decl.hpp"
#include "Thyra_TpetraVectorSpace.hpp"
#include "Thyra_TpetraVector.hpp"
#include "Teuchos_Assert.hpp"
namespace Thyra {
// Constructors/initializers/accessors
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::TpetraMultiVector()
{}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::initialize(
const RCP<const TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &tpetraVectorSpace,
const RCP<const ScalarProdVectorSpaceBase<Scalar> > &domainSpace,
const RCP<Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &tpetraMultiVector
)
{
initializeImpl(tpetraVectorSpace, domainSpace, tpetraMultiVector);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::constInitialize(
const RCP<const TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &tpetraVectorSpace,
const RCP<const ScalarProdVectorSpaceBase<Scalar> > &domainSpace,
const RCP<const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &tpetraMultiVector
)
{
initializeImpl(tpetraVectorSpace, domainSpace, tpetraMultiVector);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::getTpetraMultiVector()
{
return tpetraMultiVector_.getNonconstObj();
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::getConstTpetraMultiVector() const
{
return tpetraMultiVector_;
}
// Overridden public functions form MultiVectorAdapterBase
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP< const ScalarProdVectorSpaceBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::domainScalarProdVecSpc() const
{
return domainSpace_;
}
// Overridden protected functions from MultiVectorBase
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::assignImpl(Scalar alpha)
{
tpetraMultiVector_.getNonconstObj()->putScalar(alpha);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::
assignMultiVecImpl(const MultiVectorBase<Scalar>& mv)
{
auto tmv = this->getConstTpetraMultiVector(Teuchos::rcpFromRef(mv));
// If the cast succeeded, call Tpetra directly.
// Otherwise, fall back to the RTOp implementation.
if (nonnull(tmv)) {
tpetraMultiVector_.getNonconstObj()->assign(*tmv);
} else {
// This version will require/modify the host view of this vector.
tpetraMultiVector_.getNonconstObj()->template sync<Kokkos::HostSpace>();
tpetraMultiVector_.getNonconstObj()->template modify<Kokkos::HostSpace>();
MultiVectorDefaultBase<Scalar>::assignMultiVecImpl(mv);
}
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::scaleImpl(Scalar alpha)
{
tpetraMultiVector_.getNonconstObj()->scale(alpha);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::updateImpl(
Scalar alpha,
const MultiVectorBase<Scalar>& mv
)
{
auto tmv = this->getConstTpetraMultiVector(Teuchos::rcpFromRef(mv));
// If the cast succeeded, call Tpetra directly.
// Otherwise, fall back to the RTOp implementation.
if (nonnull(tmv)) {
typedef Teuchos::ScalarTraits<Scalar> ST;
tpetraMultiVector_.getNonconstObj()->update(alpha, *tmv, ST::one());
} else {
// This version will require/modify the host view of this vector.
tpetraMultiVector_.getNonconstObj()->template sync<Kokkos::HostSpace>();
tpetraMultiVector_.getNonconstObj()->template modify<Kokkos::HostSpace>();
MultiVectorDefaultBase<Scalar>::updateImpl(alpha, mv);
}
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::linearCombinationImpl(
const ArrayView<const Scalar>& alpha,
const ArrayView<const Ptr<const MultiVectorBase<Scalar> > >& mv,
const Scalar& beta
)
{
#ifdef TEUCHOS_DEBUG
TEUCHOS_ASSERT_EQUALITY(alpha.size(), mv.size());
#endif
// Try to cast mv to an array of this type
typedef Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TMV;
Teuchos::Array<RCP<const TMV> > tmvs(mv.size());
RCP<const TMV> tmv;
bool allCastsSuccessful = true;
{
auto mvIter = mv.begin();
auto tmvIter = tmvs.begin();
for (; mvIter != mv.end(); ++mvIter, ++tmvIter) {
tmv = this->getConstTpetraMultiVector(Teuchos::rcpFromPtr(*mvIter));
if (nonnull(tmv)) {
*tmvIter = tmv;
} else {
allCastsSuccessful = false;
break;
}
}
}
// If casts succeeded, or input arrays are size 0, call Tpetra directly.
// Otherwise, fall back to the RTOp implementation.
auto len = tmvs.size();
if (len == 0) {
tpetraMultiVector_.getNonconstObj()->scale(beta);
} else if (len == 1 && allCastsSuccessful) {
tpetraMultiVector_.getNonconstObj()->update(alpha[0], *tmvs[0], beta);
} else if (len == 2 && allCastsSuccessful) {
tpetraMultiVector_.getNonconstObj()->update(alpha[0], *tmvs[0], alpha[1], *tmvs[1], beta);
} else if (allCastsSuccessful) {
typedef Teuchos::ScalarTraits<Scalar> ST;
auto tmvIter = tmvs.begin();
auto alphaIter = alpha.begin();
// Check if any entry of tmvs aliases this object's wrapped vector.
// If so, replace that entry in the array with a copy.
tmv = Teuchos::null;
for (; tmvIter != tmvs.end(); ++tmvIter) {
if (tmvIter->getRawPtr() == tpetraMultiVector_.getConstObj().getRawPtr()) {
if (tmv.is_null()) {
tmv = Teuchos::rcp(new TMV(*tpetraMultiVector_.getConstObj(), Teuchos::Copy));
}
*tmvIter = tmv;
}
}
tmvIter = tmvs.begin();
// We add two MVs at a time, so only scale if even num MVs,
// and additionally do the first addition if odd num MVs.
if ((tmvs.size() % 2) == 0) {
tpetraMultiVector_.getNonconstObj()->scale(beta);
} else {
tpetraMultiVector_.getNonconstObj()->update(*alphaIter, *(*tmvIter), beta);
++tmvIter;
++alphaIter;
}
for (; tmvIter != tmvs.end(); tmvIter+=2, alphaIter+=2) {
tpetraMultiVector_.getNonconstObj()->update(
*alphaIter, *(*tmvIter), *(alphaIter+1), *(*(tmvIter+1)), ST::one());
}
} else {
// This version will require/modify the host view of this vector.
tpetraMultiVector_.getNonconstObj()->template sync<Kokkos::HostSpace>();
tpetraMultiVector_.getNonconstObj()->template modify<Kokkos::HostSpace>();
MultiVectorDefaultBase<Scalar>::linearCombinationImpl(alpha, mv, beta);
}
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::dotsImpl(
const MultiVectorBase<Scalar>& mv,
const ArrayView<Scalar>& prods
) const
{
auto tmv = this->getConstTpetraMultiVector(Teuchos::rcpFromRef(mv));
// If the cast succeeded, call Tpetra directly.
// Otherwise, fall back to the RTOp implementation.
if (nonnull(tmv)) {
tpetraMultiVector_.getConstObj()->dot(*tmv, prods);
} else {
// This version will require/modify the host view of this vector.
tpetraMultiVector_.getNonconstObj()->template sync<Kokkos::HostSpace>();
tpetraMultiVector_.getNonconstObj()->template modify<Kokkos::HostSpace>();
MultiVectorDefaultBase<Scalar>::dotsImpl(mv, prods);
}
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::norms1Impl(
const ArrayView<typename ScalarTraits<Scalar>::magnitudeType>& norms
) const
{
tpetraMultiVector_.getConstObj()->norm1(norms);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::norms2Impl(
const ArrayView<typename ScalarTraits<Scalar>::magnitudeType>& norms
) const
{
tpetraMultiVector_.getConstObj()->norm2(norms);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::normsInfImpl(
const ArrayView<typename ScalarTraits<Scalar>::magnitudeType>& norms
) const
{
tpetraMultiVector_.getConstObj()->normInf(norms);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<const VectorBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::colImpl(Ordinal j) const
{
#ifdef TEUCHOS_DEBUG
TEUCHOS_ASSERT_IN_RANGE_UPPER_EXCLUSIVE(j, 0, this->domain()->dim());
#endif
return constTpetraVector<Scalar>(
tpetraVectorSpace_,
tpetraMultiVector_->getVector(j)
);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<VectorBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::nonconstColImpl(Ordinal j)
{
#ifdef TEUCHOS_DEBUG
TEUCHOS_ASSERT_IN_RANGE_UPPER_EXCLUSIVE(j, 0, this->domain()->dim());
#endif
return tpetraVector<Scalar>(
tpetraVectorSpace_,
tpetraMultiVector_.getNonconstObj()->getVectorNonConst(j)
);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<const MultiVectorBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::contigSubViewImpl(
const Range1D& col_rng_in
) const
{
#ifdef THYRA_DEFAULT_SPMD_MULTI_VECTOR_VERBOSE_TO_ERROR_OUT
std::cerr << "\nTpetraMultiVector::subView(Range1D) const called!\n";
#endif
const Range1D colRng = this->validateColRange(col_rng_in);
const RCP<const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > tpetraView =
this->getConstTpetraMultiVector()->subView(colRng);
const RCP<const ScalarProdVectorSpaceBase<Scalar> > viewDomainSpace =
tpetraVectorSpace<Scalar>(
Tpetra::createLocalMapWithNode<LocalOrdinal,GlobalOrdinal>(
tpetraView->getNumVectors(),
tpetraView->getMap()->getComm(),
tpetraView->getMap()->getNode()
)
);
return constTpetraMultiVector(
tpetraVectorSpace_,
viewDomainSpace,
tpetraView
);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<MultiVectorBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::nonconstContigSubViewImpl(
const Range1D& col_rng_in
)
{
#ifdef THYRA_DEFAULT_SPMD_MULTI_VECTOR_VERBOSE_TO_ERROR_OUT
std::cerr << "\nTpetraMultiVector::subView(Range1D) called!\n";
#endif
const Range1D colRng = this->validateColRange(col_rng_in);
const RCP<Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > tpetraView =
this->getTpetraMultiVector()->subViewNonConst(colRng);
const RCP<const ScalarProdVectorSpaceBase<Scalar> > viewDomainSpace =
tpetraVectorSpace<Scalar>(
Tpetra::createLocalMapWithNode<LocalOrdinal,GlobalOrdinal>(
tpetraView->getNumVectors(),
tpetraView->getMap()->getComm(),
tpetraView->getMap()->getNode()
)
);
return tpetraMultiVector(
tpetraVectorSpace_,
viewDomainSpace,
tpetraView
);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<const MultiVectorBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::nonContigSubViewImpl(
const ArrayView<const int>& cols_in
) const
{
#ifdef THYRA_DEFAULT_SPMD_MULTI_VECTOR_VERBOSE_TO_ERROR_OUT
std::cerr << "\nTpetraMultiVector::subView(ArrayView) const called!\n";
#endif
// Tpetra wants col indices as size_t
Array<std::size_t> cols(cols_in.size());
for (Array<std::size_t>::size_type i = 0; i < cols.size(); ++i)
cols[i] = static_cast<std::size_t>(cols_in[i]);
const RCP<const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > tpetraView =
this->getConstTpetraMultiVector()->subView(cols());
const RCP<const ScalarProdVectorSpaceBase<Scalar> > viewDomainSpace =
tpetraVectorSpace<Scalar>(
Tpetra::createLocalMapWithNode<LocalOrdinal,GlobalOrdinal>(
tpetraView->getNumVectors(),
tpetraView->getMap()->getComm(),
tpetraView->getMap()->getNode()
)
);
return constTpetraMultiVector(
tpetraVectorSpace_,
viewDomainSpace,
tpetraView
);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<MultiVectorBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::nonconstNonContigSubViewImpl(
const ArrayView<const int>& cols_in
)
{
#ifdef THYRA_DEFAULT_SPMD_MULTI_VECTOR_VERBOSE_TO_ERROR_OUT
std::cerr << "\nTpetraMultiVector::subView(ArrayView) called!\n";
#endif
// Tpetra wants col indices as size_t
Array<std::size_t> cols(cols_in.size());
for (Array<std::size_t>::size_type i = 0; i < cols.size(); ++i)
cols[i] = static_cast<std::size_t>(cols_in[i]);
const RCP<Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > tpetraView =
this->getTpetraMultiVector()->subViewNonConst(cols());
const RCP<const ScalarProdVectorSpaceBase<Scalar> > viewDomainSpace =
tpetraVectorSpace<Scalar>(
Tpetra::createLocalMapWithNode<LocalOrdinal,GlobalOrdinal>(
tpetraView->getNumVectors(),
tpetraView->getMap()->getComm(),
tpetraView->getMap()->getNode()
)
);
return tpetraMultiVector(
tpetraVectorSpace_,
viewDomainSpace,
tpetraView
);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::
mvMultiReductApplyOpImpl(
const RTOpPack::RTOpT<Scalar> &primary_op,
const ArrayView<const Ptr<const MultiVectorBase<Scalar> > > &multi_vecs,
const ArrayView<const Ptr<MultiVectorBase<Scalar> > > &targ_multi_vecs,
const ArrayView<const Ptr<RTOpPack::ReductTarget> > &reduct_objs,
const Ordinal primary_global_offset
) const
{
typedef TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TMV;
// Sync any non-target Tpetra MVs to host space
for (auto itr = multi_vecs.begin(); itr != multi_vecs.end(); ++itr) {
Ptr<const TMV> tmv = Teuchos::ptr_dynamic_cast<const TMV>(*itr);
if (nonnull(tmv)) {
Teuchos::rcp_const_cast<Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >(
tmv->getConstTpetraMultiVector())-> template sync<Kokkos::HostSpace>();
}
}
// Sync any target Tpetra MVs and mark modified
for (auto itr = targ_multi_vecs.begin(); itr != targ_multi_vecs.end(); ++itr) {
Ptr<TMV> tmv = Teuchos::ptr_dynamic_cast<TMV>(*itr);
if (nonnull(tmv)) {
tmv->getTpetraMultiVector()->template sync<Kokkos::HostSpace>();
tmv->getTpetraMultiVector()->template modify<Kokkos::HostSpace>();
}
}
MultiVectorAdapterBase<Scalar>::mvMultiReductApplyOpImpl(
primary_op, multi_vecs, targ_multi_vecs, reduct_objs, primary_global_offset);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::
acquireDetachedMultiVectorViewImpl(
const Range1D &rowRng,
const Range1D &colRng,
RTOpPack::ConstSubMultiVectorView<Scalar>* sub_mv
) const
{
// Only viewing data, so just sync dual view to host space
typedef typename Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TMV;
Teuchos::rcp_const_cast<TMV>(
tpetraMultiVector_.getConstObj())->template sync<Kokkos::HostSpace>();
SpmdMultiVectorDefaultBase<Scalar>::
acquireDetachedMultiVectorViewImpl(rowRng, colRng, sub_mv);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::
acquireNonconstDetachedMultiVectorViewImpl(
const Range1D &rowRng,
const Range1D &colRng,
RTOpPack::SubMultiVectorView<Scalar>* sub_mv
)
{
// Sync to host and mark as modified
tpetraMultiVector_.getNonconstObj()->template sync<Kokkos::HostSpace>();
tpetraMultiVector_.getNonconstObj()->template modify<Kokkos::HostSpace>();
SpmdMultiVectorDefaultBase<Scalar>::
acquireNonconstDetachedMultiVectorViewImpl(rowRng, colRng, sub_mv);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::
commitNonconstDetachedMultiVectorViewImpl(
RTOpPack::SubMultiVectorView<Scalar>* sub_mv
)
{
SpmdMultiVectorDefaultBase<Scalar>::
commitNonconstDetachedMultiVectorViewImpl(sub_mv);
// Sync changes from host view to execution space
typedef typename Tpetra::MultiVector<
Scalar,LocalOrdinal,GlobalOrdinal,Node>::execution_space execution_space;
tpetraMultiVector_.getNonconstObj()->template sync<execution_space>();
}
/* ToDo: Implement these?
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<const MultiVectorBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::nonContigSubViewImpl(
const ArrayView<const int> &cols
) const
{
THYRA_DEBUG_ASSERT_MV_COLS("nonContigSubViewImpl(cols)", cols);
const int numCols = cols.size();
const ArrayRCP<Scalar> localValuesView = createContiguousCopy(cols);
return defaultSpmdMultiVector<Scalar>(
spmdRangeSpace_,
createSmallScalarProdVectorSpaceBase<Scalar>(spmdRangeSpace_, numCols),
localValuesView
);
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<MultiVectorBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::nonconstNonContigSubViewImpl(
const ArrayView<const int> &cols )
{
THYRA_DEBUG_ASSERT_MV_COLS("nonContigSubViewImpl(cols)", cols);
const int numCols = cols.size();
const ArrayRCP<Scalar> localValuesView = createContiguousCopy(cols);
const Ordinal localSubDim = spmdRangeSpace_->localSubDim();
RCP<CopyBackSpmdMultiVectorEntries<Scalar> > copyBackView =
copyBackSpmdMultiVectorEntries<Scalar>(cols, localValuesView.getConst(),
localSubDim, localValues_.create_weak(), leadingDim_);
return Teuchos::rcpWithEmbeddedObjPreDestroy(
new TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>(
spmdRangeSpace_,
createSmallScalarProdVectorSpaceBase<Scalar>(spmdRangeSpace_, numCols),
localValuesView),
copyBackView
);
}
*/
// Overridden protected members from SpmdMultiVectorBase
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<const SpmdVectorSpaceBase<Scalar> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::spmdSpaceImpl() const
{
return tpetraVectorSpace_;
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::getNonconstLocalMultiVectorDataImpl(
const Ptr<ArrayRCP<Scalar> > &localValues, const Ptr<Ordinal> &leadingDim
)
{
*localValues = tpetraMultiVector_.getNonconstObj()->get1dViewNonConst();
*leadingDim = tpetraMultiVector_->getStride();
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::getLocalMultiVectorDataImpl(
const Ptr<ArrayRCP<const Scalar> > &localValues, const Ptr<Ordinal> &leadingDim
) const
{
*localValues = tpetraMultiVector_->get1dView();
*leadingDim = tpetraMultiVector_->getStride();
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::euclideanApply(
const EOpTransp M_trans,
const MultiVectorBase<Scalar> &X,
const Ptr<MultiVectorBase<Scalar> > &Y,
const Scalar alpha,
const Scalar beta
) const
{
// Try to extract Tpetra objects from X and Y
typedef Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TMV;
Teuchos::RCP<const TMV> X_tpetra = this->getConstTpetraMultiVector(Teuchos::rcpFromRef(X));
Teuchos::RCP<TMV> Y_tpetra = this->getTpetraMultiVector(Teuchos::rcpFromPtr(Y));
// If the cast succeeded, call Tpetra directly.
// Otherwise, fall back to the default implementation.
if (nonnull(X_tpetra) && nonnull(Y_tpetra)) {
// Sync everything to the execution space
typedef typename TMV::execution_space execution_space;
Teuchos::rcp_const_cast<TMV>(X_tpetra)->template sync<execution_space>();
Y_tpetra->template sync<execution_space>();
Teuchos::rcp_const_cast<TMV>(
tpetraMultiVector_.getConstObj())->template sync<execution_space>();
typedef Teuchos::ScalarTraits<Scalar> ST;
TEUCHOS_TEST_FOR_EXCEPTION(ST::isComplex && (M_trans == CONJ),
std::logic_error,
"Error, conjugation without transposition is not allowed for complex scalar types!");
Teuchos::ETransp trans = Teuchos::NO_TRANS;
switch (M_trans) {
case NOTRANS:
trans = Teuchos::NO_TRANS;
break;
case CONJ:
trans = Teuchos::NO_TRANS;
break;
case TRANS:
trans = Teuchos::TRANS;
break;
case CONJTRANS:
trans = Teuchos::CONJ_TRANS;
break;
}
Y_tpetra->template modify<execution_space>();
Y_tpetra->multiply(trans, Teuchos::NO_TRANS, alpha, *tpetraMultiVector_.getConstObj(), *X_tpetra, beta);
} else {
Teuchos::rcp_const_cast<TMV>(
tpetraMultiVector_.getConstObj())->template sync<Kokkos::HostSpace>();
SpmdMultiVectorDefaultBase<Scalar>::euclideanApply(M_trans, X, Y, alpha, beta);
}
}
// private
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
template<class TpetraMultiVector_t>
void TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::initializeImpl(
const RCP<const TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &tpetraVectorSpace,
const RCP<const ScalarProdVectorSpaceBase<Scalar> > &domainSpace,
const RCP<TpetraMultiVector_t> &tpetraMultiVector
)
{
#ifdef THYRA_DEBUG
TEUCHOS_ASSERT(nonnull(tpetraVectorSpace));
TEUCHOS_ASSERT(nonnull(domainSpace));
TEUCHOS_ASSERT(nonnull(tpetraMultiVector));
// ToDo: Check to make sure that tpetraMultiVector is compatible with
// tpetraVectorSpace.
#endif
tpetraVectorSpace_ = tpetraVectorSpace;
domainSpace_ = domainSpace;
tpetraMultiVector_.initialize(tpetraMultiVector);
this->updateSpmdSpace();
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::
getTpetraMultiVector(const RCP<MultiVectorBase<Scalar> >& mv) const
{
using Teuchos::rcp_dynamic_cast;
typedef Thyra::TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TMV;
typedef Thyra::TpetraVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TV;
RCP<TMV> tmv = rcp_dynamic_cast<TMV>(mv);
if (nonnull(tmv)) {
return tmv->getTpetraMultiVector();
}
RCP<TV> tv = rcp_dynamic_cast<TV>(mv);
if (nonnull(tv)) {
return tv->getTpetraVector();
}
return Teuchos::null;
}
template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<const Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node>::
getConstTpetraMultiVector(const RCP<const MultiVectorBase<Scalar> >& mv) const
{
using Teuchos::rcp_dynamic_cast;
typedef Thyra::TpetraMultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TMV;
typedef Thyra::TpetraVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> TV;
RCP<const TMV> tmv = rcp_dynamic_cast<const TMV>(mv);
if (nonnull(tmv)) {
return tmv->getConstTpetraMultiVector();
}
RCP<const TV> tv = rcp_dynamic_cast<const TV>(mv);
if (nonnull(tv)) {
return tv->getConstTpetraVector();
}
return Teuchos::null;
}
} // end namespace Thyra
#endif // THYRA_TPETRA_MULTIVECTOR_HPP
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