35 #ifndef _BLAZE_MATH_EXPRESSIONS_TSMATSVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_TSMATSVECMULTEXPR_H_
99 class TSMatSVecMultExpr :
public SparseVector< TSMatSVecMultExpr<MT,VT>, false >
100 ,
private MatVecMultExpr
101 ,
private Computation
127 template<
typename T1 >
128 struct UseSMPAssign {
129 enum :
bool { value = ( evaluateMatrix || evaluateVector ) };
160 enum :
bool { smpAssignable = !evaluateMatrix && MT::smpAssignable &&
161 !evaluateVector && VT::smpAssignable };
189 return mat_(index,index) *
vec_[index];
199 const size_t n (
mat_.columns() -
begin );
216 inline ReturnType
at(
size_t index )
const {
217 if( index >=
mat_.rows() ) {
220 return (*
this)[index];
229 inline size_t size() const noexcept {
270 template<
typename T >
271 inline bool canAlias(
const T* alias )
const noexcept {
272 return (
mat_.isAliased( alias ) ||
vec_.isAliased( alias ) );
282 template<
typename T >
283 inline bool isAliased(
const T* alias )
const noexcept {
284 return (
mat_.isAliased( alias ) ||
vec_.isAliased( alias ) );
294 return (
size() > SMP_SMATSVECMULT_THRESHOLD );
317 template<
typename VT1 >
328 RT x(
serial( rhs.vec_ ) );
329 if( x.nonZeros() == 0UL )
return;
332 LT A(
serial( rhs.mat_ ) );
341 TSMatSVecMultExpr::selectAssignKernel( ~lhs, A, x );
360 template<
typename VT1
363 static inline void selectAssignKernel( VT1& y,
const MT1& A,
const VT2& x )
368 const VectorIterator vend ( x.end() );
369 VectorIterator velem( x.begin() );
371 for( ; velem!=vend; ++velem )
373 const MatrixIterator mend ( A.end ( velem->index() ) );
374 MatrixIterator melem( A.begin( velem->index() ) );
376 for( ; melem!=mend; ++melem ) {
379 y[melem->index()] = melem->value() * velem->value();
381 y[melem->index()] += melem->value() * velem->value();
400 template<
typename VT1 >
401 friend inline void assign( SparseVector<VT1,false>& lhs,
const TSMatSVecMultExpr& rhs )
407 const DynamicVector<ElementType_<VT1>,
false> tmp(
serial( rhs ) );
426 template<
typename VT1 >
427 friend inline void addAssign( DenseVector<VT1,false>& lhs,
const TSMatSVecMultExpr& rhs )
434 RT x(
serial( rhs.vec_ ) );
435 if( x.nonZeros() == 0UL )
return;
438 LT A(
serial( rhs.mat_ ) );
447 TSMatSVecMultExpr::selectAddAssignKernel( ~lhs, A, x );
466 template<
typename VT1
469 static inline void selectAddAssignKernel( VT1& y,
const MT1& A,
const VT2& x )
471 typedef ConstIterator_< RemoveReference_<MT1> > MatrixIterator;
472 typedef ConstIterator_< RemoveReference_<VT2> > VectorIterator;
474 const VectorIterator vend ( x.end() );
475 VectorIterator velem( x.begin() );
477 for( ; velem!=vend; ++velem )
479 const MatrixIterator mend ( A.end ( velem->index() ) );
480 MatrixIterator melem( A.begin( velem->index() ) );
482 for( ; melem!=mend; ++melem ) {
483 y[melem->index()] += melem->value() * velem->value();
507 template<
typename VT1 >
508 friend inline void subAssign( DenseVector<VT1,false>& lhs,
const TSMatSVecMultExpr& rhs )
515 RT x(
serial( rhs.vec_ ) );
516 if( x.nonZeros() == 0UL )
return;
519 LT A(
serial( rhs.mat_ ) );
528 TSMatSVecMultExpr::selectSubAssignKernel( ~lhs, A, x );
547 template<
typename VT1
550 static inline void selectSubAssignKernel( VT1& y,
const MT1& A,
const VT2& x )
552 typedef ConstIterator_< RemoveReference_<MT1> > MatrixIterator;
553 typedef ConstIterator_< RemoveReference_<VT2> > VectorIterator;
555 const VectorIterator vend ( x.end() );
556 VectorIterator velem( x.begin() );
558 for( ; velem!=vend; ++velem )
560 const MatrixIterator mend ( A.end ( velem->index() ) );
561 MatrixIterator melem( A.begin( velem->index() ) );
563 for( ; melem!=mend; ++melem ) {
564 y[melem->index()] -= melem->value() * velem->value();
588 template<
typename VT1 >
589 friend inline void multAssign( DenseVector<VT1,false>& lhs,
const TSMatSVecMultExpr& rhs )
599 const ResultType tmp(
serial( rhs ) );
600 multAssign( ~lhs, tmp );
624 template<
typename VT1 >
625 friend inline EnableIf_< UseSMPAssign<VT1> >
637 if( x.nonZeros() == 0UL )
return;
673 template<
typename VT1 >
674 friend inline EnableIf_< UseSMPAssign<VT1> >
683 if( x.nonZeros() == 0UL )
return;
719 template<
typename VT1 >
720 friend inline EnableIf_< UseSMPAssign<VT1> >
729 if( x.nonZeros() == 0UL )
return;
765 template<
typename VT1 >
766 friend inline EnableIf_< UseSMPAssign<VT1> >
777 const ResultType tmp( rhs );
839 template<
typename T1
841 inline const DisableIf_< IsMatMatMultExpr<T1>, TSMatSVecMultExpr<T1,T2> >
865 template<
typename MT,
typename VT >
882 template<
typename MT,
typename VT,
bool AF >
887 using Type = MultExprTrait_< SubmatrixExprTrait_<const MT,AF>
888 , SubvectorExprTrait_<const VT,AF> >;
#define BLAZE_THROW_INVALID_ARGUMENT(MESSAGE)
Macro for the emission of a std::invalid_argument exception.This macro encapsulates the default way o...
Definition: Exception.h:235
Header file for auxiliary alias declarations.
Compile time check whether the given type is a computational expression template.This type trait clas...
Definition: IsComputation.h:72
Header file for the Rows type trait.
const DMatDMatMultExpr< T1, T2 > operator*(const DenseMatrix< T1, false > &lhs, const DenseMatrix< T2, false > &rhs)
Multiplication operator for the multiplication of two row-major dense matrices ( ).
Definition: DMatDMatMultExpr.h:7800
Header file for basic type definitions.
Header file for the SparseVector base class.
#define BLAZE_CONSTRAINT_MUST_BE_COLUMN_VECTOR_TYPE(T)
Constraint on the data type.In case the given data type T is not a column dense or sparse vector type...
Definition: ColumnVector.h:61
EnableIf_< IsDenseMatrix< MT1 > > smpSubAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:160
Header file for the serial shim.
Header file for the IsDiagonal type trait.
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: TSMatSVecMultExpr.h:229
CompositeType_< VT > VCT
Composite type of the right-hand side sparse vector expression.
Definition: TSMatSVecMultExpr.h:108
BLAZE_ALWAYS_INLINE MT::Iterator begin(Matrix< MT, SO > &matrix, size_t i)
Returns an iterator to the first element of row/column i.
Definition: Matrix.h:188
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:533
If_< IsExpression< MT >, const MT, const MT & > LeftOperand
Composite type of the left-hand side sparse matrix expression.
Definition: TSMatSVecMultExpr.h:146
EnableIf_< IsDenseVector< VT1 > > smpMultAssign(Vector< VT1, TF1 > &lhs, const Vector< VT2, TF2 > &rhs)
Default implementation of the SMP multiplication assignment of a vector to a dense vector...
Definition: DenseVector.h:193
Compile time check for lower triangular matrices.This type trait tests whether or not the given templ...
Definition: IsLower.h:88
ElementType_< ResultType > ElementType
Resulting element type.
Definition: TSMatSVecMultExpr.h:139
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:723
typename MultTrait< T1, T2 >::Type MultTrait_
Auxiliary alias declaration for the MultTrait class template.The MultTrait_ alias declaration provide...
Definition: MultTrait.h:245
Header file for the Computation base class.
Compile time check for upper triangular matrices.This type trait tests whether or not the given templ...
Definition: IsUpper.h:88
Header file for the RequiresEvaluation type trait.
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: TSMatSVecMultExpr.h:184
typename T::ResultType ResultType_
Alias declaration for nested ResultType type definitions.The ResultType_ alias declaration provides a...
Definition: Aliases.h:323
EnableIf_< IsDenseMatrix< MT1 > > smpAddAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP addition assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:129
Header file for the implementation of an arbitrarily sized vector.
Base class for sparse matrices.The SparseMatrix class is a base class for all sparse matrix classes...
Definition: Forward.h:109
bool isDefault(const DiagonalProxy< MT > &proxy)
Returns whether the represented element is in default state.
Definition: DiagonalProxy.h:573
const ElementType ReturnType
Return type for expression template evaluations.
Definition: TSMatSVecMultExpr.h:140
Constraint on the data type.
typename IfTrue< Condition, T1, T2 >::Type IfTrue_
Auxiliary alias declaration for the IfTrue class template.The IfTrue_ alias declaration provides a co...
Definition: If.h:109
Constraint on the transpose flag of vector types.
Constraint on the data type.
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:72
SubvectorExprTrait_< VT, unaligned > subvector(Vector< VT, TF > &vector, size_t index, size_t size)
Creating a view on a specific subvector of the given vector.
Definition: Subvector.h:152
typename T::CompositeType CompositeType_
Alias declaration for nested CompositeType type definitions.The CompositeType_ alias declaration prov...
Definition: Aliases.h:83
RightOperand rightOperand() const noexcept
Returns the right-hand side sparse vector operand.
Definition: TSMatSVecMultExpr.h:259
CompositeType_< MT > MCT
Composite type of the left-hand side sparse matrix expression.
Definition: TSMatSVecMultExpr.h:107
If_< IsExpression< VT >, const VT, const VT & > RightOperand
Composite type of the right-hand side sparse vector expression.
Definition: TSMatSVecMultExpr.h:149
Header file for the DisableIf class template.
Header file for the multiplication trait.
Header file for the IsStrictlyUpper type trait.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
Expression object for sparse matrix-sparse vector multiplications.The TSMatSVecMultExpr class represe...
Definition: Forward.h:145
Header file for the If class template.
#define BLAZE_CONSTRAINT_MUST_BE_COLUMN_MAJOR_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a column-major dense or sparse matri...
Definition: ColumnMajorMatrix.h:61
bool canSMPAssign() const noexcept
Returns whether the expression can be used in SMP assignments.
Definition: TSMatSVecMultExpr.h:293
EnableIf_< IsDenseMatrix< MT1 > > smpAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:98
const ResultType CompositeType
Data type for composite expression templates.
Definition: TSMatSVecMultExpr.h:143
Header file for the IsMatMatMultExpr type trait class.
#define BLAZE_THROW_OUT_OF_RANGE(MESSAGE)
Macro for the emission of a std::out_of_range exception.This macro encapsulates the default way of Bl...
Definition: Exception.h:331
LeftOperand leftOperand() const noexcept
Returns the left-hand side transpose sparse matrix operand.
Definition: TSMatSVecMultExpr.h:249
RightOperand vec_
Right-hand side sparse vector of the multiplication expression.
Definition: TSMatSVecMultExpr.h:301
typename T::ElementType ElementType_
Alias declaration for nested ElementType type definitions.The ElementType_ alias declaration provides...
Definition: Aliases.h:163
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
TSMatSVecMultExpr< MT, VT > This
Type of this TSMatSVecMultExpr instance.
Definition: TSMatSVecMultExpr.h:136
Header file for the IsLower type trait.
#define BLAZE_CONSTRAINT_MUST_BE_SPARSE_VECTOR_TYPE(T)
Constraint on the data type.In case the given data type T is not a sparse, N-dimensional vector type...
Definition: SparseVector.h:61
Compile time check for diagonal matrices.This type trait tests whether or not the given template para...
Definition: IsDiagonal.h:90
BLAZE_ALWAYS_INLINE size_t columns(const Matrix< MT, SO > &matrix) noexcept
Returns the current number of columns of the matrix.
Definition: Matrix.h:330
ResultType_< VT > VRT
Result type of the right-hand side sparse vector expression.
Definition: TSMatSVecMultExpr.h:106
#define BLAZE_CONSTRAINT_MUST_BE_REFERENCE_TYPE(T)
Constraint on the data type.In case the given data type T is not a reference type, a compilation error is created.
Definition: Reference.h:60
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_MATVECMULTEXPR(T1, T2)
Constraint on the data type.In case the given data types T1 and T2 do not form a valid matrix/vector ...
Definition: MatVecMultExpr.h:110
Header file for the exception macros of the math module.
Compile time check for strictly upper triangular matrices.This type trait tests whether or not the gi...
Definition: IsStrictlyUpper.h:86
Header file for all forward declarations for expression class templates.
Constraint on the data type.
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: TSMatSVecMultExpr.h:283
Header file for the EnableIf class template.
Header file for the IsStrictlyLower type trait.
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: TSMatSVecMultExpr.h:216
ResultType_< MT > MRT
Result type of the left-hand side sparse matrix expression.
Definition: TSMatSVecMultExpr.h:105
Compile time check for resizable data types.This type trait tests whether the given data type is a re...
Definition: IsResizable.h:75
DisableIf_< Or< IsComputation< MT >, IsTransExpr< MT > >, RowExprTrait_< MT > > row(Matrix< MT, SO > &matrix, size_t index)
Creating a view on a specific row of the given matrix.
Definition: Row.h:126
LeftOperand mat_
Left-hand side sparse matrix of the multiplication expression.
Definition: TSMatSVecMultExpr.h:300
Header file for run time assertion macros.
size_t nonZeros() const
Returns an estimation for the number of non-zero elements in the sparse vector.
Definition: TSMatSVecMultExpr.h:239
TSMatSVecMultExpr(const MT &mat, const VT &vec) noexcept
Constructor for the TSMatSVecMultExpr class.
Definition: TSMatSVecMultExpr.h:170
typename If< T1, T2, T3 >::Type If_
Auxiliary alias declaration for the If class template.The If_ alias declaration provides a convenient...
Definition: If.h:160
Header file for the reset shim.
Header file for the isDefault shim.
MultTrait_< MRT, VRT > ResultType
Result type for expression template evaluations.
Definition: TSMatSVecMultExpr.h:137
Constraints on the storage order of matrix types.
Header file for the RemoveReference type trait.
TransposeType_< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: TSMatSVecMultExpr.h:138
Compile time check for strictly lower triangular matrices.This type trait tests whether or not the gi...
Definition: IsStrictlyLower.h:86
typename T::ConstIterator ConstIterator_
Alias declaration for nested ConstIterator type definitions.The ConstIterator_ alias declaration prov...
Definition: Aliases.h:103
IfTrue_< evaluateVector, const VRT, VCT > RT
Type for the assignment of the right-hand side sparse vector operand.
Definition: TSMatSVecMultExpr.h:155
Header file for the IsComputation type trait class.
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:110
#define BLAZE_FUNCTION_TRACE
Function trace macro.This macro can be used to reliably trace function calls. In case function tracin...
Definition: FunctionTrace.h:157
Constraint on the data type.
typename T::TransposeType TransposeType_
Alias declaration for nested TransposeType type definitions.The TransposeType_ alias declaration prov...
Definition: Aliases.h:403
Header file for the IsUpper type trait.
Header file for the MatVecMultExpr base class.
IfTrue_< evaluateMatrix, const MRT, MCT > LT
Type for the assignment of the left-hand side sparse matrix operand.
Definition: TSMatSVecMultExpr.h:152
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: TSMatSVecMultExpr.h:271
Header file for the IsResizable type trait.
Header file for the Size type trait.
Header file for the thresholds for matrix/vector and matrix/matrix multiplications.
#define BLAZE_INTERNAL_ASSERT(expr, msg)
Run time assertion macro for internal checks.In case of an invalid run time expression, the program execution is terminated. The BLAZE_INTERNAL_ASSERT macro can be disabled by setting the BLAZE_USER_ASSERTION flag to zero or by defining NDEBUG during the compilation.
Definition: Assert.h:101
#define BLAZE_CONSTRAINT_MUST_BE_SPARSE_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a sparse, N-dimensional matrix type...
Definition: SparseMatrix.h:61
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.