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 >
426 template<
typename VT1 >
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 )
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 >
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 )
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 >
599 const ResultType tmp(
serial( rhs ) );
600 multAssign( ~lhs, tmp );
624 template<
typename VT1 >
637 if( x.nonZeros() == 0UL )
return;
673 template<
typename VT1 >
683 if( x.nonZeros() == 0UL )
return;
719 template<
typename VT1 >
729 if( x.nonZeros() == 0UL )
return;
765 template<
typename VT1 >
777 const ResultType tmp( rhs );
839 template<
typename T1
865 template<
typename MT,
typename VT >
866 struct Size< TSMatSVecMultExpr<MT,VT> > :
public Rows<MT>
882 template<
typename MT,
typename VT,
bool 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
Evaluation of the expression type type of a subvector operation.Via this type trait it is possible to...
Definition: SubvectorExprTrait.h:79
Header file for the Rows type trait.
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.
LeftOperand leftOperand() const noexcept
Returns the left-hand side transpose sparse matrix operand.
Definition: TSMatSVecMultExpr.h:249
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:194
size_t nonZeros() const
Returns an estimation for the number of non-zero elements in the sparse vector.
Definition: TSMatSVecMultExpr.h:239
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:533
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: TSMatSVecMultExpr.h:229
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
typename DisableIf< Condition, T >::Type DisableIf_
Auxiliary type for the DisableIf class template.The DisableIf_ alias declaration provides a convenien...
Definition: DisableIf.h:223
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:721
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
Efficient implementation of an arbitrary sized vector.The DynamicVector class template is the represe...
Definition: DynamicVector.h:177
Header file for the RequiresEvaluation type trait.
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:119
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.
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: TSMatSVecMultExpr.h:216
Constraint on the data type.
typename MultExprTrait< T1, T2 >::Type MultExprTrait_
Auxiliary alias declaration for the MultExprTrait class template.The MultExprTrait_ alias declaration...
Definition: MultExprTrait.h:344
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
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:155
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
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
RightOperand vec_
Right-hand side sparse vector of the multiplication expression.
Definition: TSMatSVecMultExpr.h:301
typename SubvectorExprTrait< VT, AF >::Type SubvectorExprTrait_
Auxiliary alias declaration for the SubvectorExprTrait type trait.The SubvectorExprTrait_ alias decla...
Definition: SubvectorExprTrait.h:133
typename T::ElementType ElementType_
Alias declaration for nested ElementType type definitions.The ElementType_ alias declaration provides...
Definition: Aliases.h:163
bool canSMPAssign() const noexcept
Returns whether the expression can be used in SMP assignments.
Definition: TSMatSVecMultExpr.h:293
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:336
ResultType_< VT > VRT
Result type of the right-hand side sparse vector expression.
Definition: TSMatSVecMultExpr.h:106
DisableIf_< Or< IsComputation< MT >, IsTransExpr< MT >, IsDeclExpr< 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:128
#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
RightOperand rightOperand() const noexcept
Returns the right-hand side sparse vector operand.
Definition: TSMatSVecMultExpr.h:259
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.
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
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: TSMatSVecMultExpr.h:271
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: TSMatSVecMultExpr.h:184
LeftOperand mat_
Left-hand side sparse matrix of the multiplication expression.
Definition: TSMatSVecMultExpr.h:300
Header file for run time assertion macros.
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.
#define BLAZE_FUNCTION_TRACE
Function trace macro.This macro can be used to reliably trace function calls. In case function tracin...
Definition: FunctionTrace.h:93
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.
typename EnableIf< Condition, T >::Type EnableIf_
Auxiliary alias declaration for the EnableIf class template.The EnableIf_ alias declaration provides ...
Definition: EnableIf.h:223
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.
Compile time evaluation of the size of a vector.The Size type trait evaluates the size of the given v...
Definition: Size.h:75
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:120
Compile time evaluation of the number of rows of a matrix.The Rows type trait evaluates the number of...
Definition: Rows.h:76
Constraint on the data type.
bool isDefault(const DiagonalProxy< MT > &proxy)
Returns whether the represented element is in default state.
Definition: DiagonalProxy.h:573
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
Header file for the IsResizable type trait.
const DMatDMatMultExpr< T1, T2, false, false, false, false > 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:7505
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 function trace functionality.