35 #ifndef _BLAZE_MATH_EXPRESSIONS_DMATSVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_DMATSVECMULTEXPR_H_
101 template<
typename MT
133 enum { useAssign = evaluateMatrix || evaluateVector };
138 template<
typename VT2 >
141 enum { value = useAssign };
152 template<
typename T1 >
153 struct UseSMPAssign {
154 enum { value = useAssign };
185 enum { vectorizable = 0 };
188 enum { smpAssignable = !evaluateMatrix && MT::smpAssignable &&
189 !evaluateVector && VT::smpAssignable };
230 if( element != end ) {
231 res =
mat_( index, element->index() ) * element->value();
233 for( ; element!=
end; ++element ) {
234 res +=
mat_( index, element->index() ) * element->value();
249 inline ReturnType
at(
size_t index )
const {
250 if( index >=
mat_.rows() ) {
253 return (*
this)[index];
293 template<
typename T >
295 return mat_.isAliased( alias ) ||
vec_.isAliased( alias );
305 template<
typename T >
307 return mat_.isAliased( alias ) ||
vec_.isAliased( alias );
317 return mat_.isAligned();
327 return (
size() > SMP_DMATSVECMULT_THRESHOLD );
353 template<
typename VT1 >
365 if( x.nonZeros() == 0UL ) {
380 assign( ~lhs, A * x );
401 template<
typename VT1 >
413 const ResultType tmp(
serial( rhs ) );
435 template<
typename VT1 >
436 friend inline typename EnableIf< UseAssign<VT1> >::Type
446 RT x(
serial( rhs.vec_ ) );
447 if( x.nonZeros() == 0UL )
return;
450 LT A(
serial( rhs.mat_ ) );
459 addAssign( ~lhs, A * x );
484 template<
typename VT1 >
485 friend inline typename EnableIf< UseAssign<VT1> >::Type
495 RT x(
serial( rhs.vec_ ) );
496 if( x.nonZeros() == 0UL )
return;
499 LT A(
serial( rhs.mat_ ) );
508 subAssign( ~lhs, A * x );
533 template<
typename VT1 >
534 friend inline typename EnableIf< UseAssign<VT1> >::Type
545 const ResultType tmp(
serial( rhs ) );
546 multAssign( ~lhs, tmp );
570 template<
typename VT1 >
571 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
582 if( x.nonZeros() == 0UL ) {
617 template<
typename VT1 >
618 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
629 const ResultType tmp( rhs );
650 template<
typename VT1 >
651 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
662 if( x.nonZeros() == 0UL )
return;
698 template<
typename VT1 >
699 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
710 if( x.nonZeros() == 0UL )
return;
746 template<
typename VT1 >
747 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
758 const ResultType tmp( rhs );
822 template<
typename T1
824 inline const typename DisableIf< Or< IsSymmetric<T1>, IsMatMatMultExpr<T1> >
825 , DMatSVecMultExpr<T1,T2> >::Type
862 template<
typename T1
864 inline const typename EnableIf< IsSymmetric<T1>,
typename MultExprTrait<T1,T2>::Type >::Type
865 operator*(
const DenseMatrix<T1,false>& mat,
const SparseVector<T2,false>& vec )
875 return trans( ~mat ) * (~vec);
895 template<
typename T1
898 inline const typename EnableIf< IsMatMatMultExpr<T1>,
typename MultExprTrait<T1,T2>::Type >::Type
899 operator*(
const DenseMatrix<T1,SO>& mat,
const SparseVector<T2,false>& vec )
905 return (~mat).leftOperand() * ( (~mat).rightOperand() * vec );
921 template<
typename MT,
typename VT >
922 struct Size< DMatSVecMultExpr<MT,VT> > :
public Rows<MT>
938 template<
typename MT,
typename VT >
939 struct IsAligned< DMatSVecMultExpr<MT,VT> > :
public IsTrue< IsAligned<MT>::value >
955 template<
typename MT,
typename VT,
bool AF >
956 struct SubvectorExprTrait< DMatSVecMultExpr<MT,VT>, AF >
960 typedef typename MultExprTrait< typename SubmatrixExprTrait<const MT,AF>::Type
961 ,
typename SubvectorExprTrait<const VT,AF>::Type >::Type Type;
bool isAligned() const
Returns whether the operands of the expression are properly aligned in memory.
Definition: DMatSVecMultExpr.h:316
#define BLAZE_THROW_INVALID_ARGUMENT(MESSAGE)
Macro for the emission of a std::invalid_argument exceptionThis macro encapsulates the default way of...
Definition: Exception.h:187
Compile time check whether the given type is a computational expression template.This type trait clas...
Definition: IsComputation.h:89
#define BLAZE_USER_ASSERT(expr, msg)
Run time assertion macro for user checks.In case of an invalid run time expression, the program execution is terminated. The BLAZE_USER_ASSERT macro can be disabled by setting the BLAZE_USER_ASSERT flag to zero or by defining NDEBUG during the compilation.
Definition: Assert.h:117
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:7820
Header file for basic type definitions.
DMatSVecMultExpr< MT, VT > This
Type of this DMatSVecMultExpr instance.
Definition: DMatSVecMultExpr.h:161
BLAZE_ALWAYS_INLINE size_t size(const Vector< VT, TF > &vector)
Returns the current size/dimension of the vector.
Definition: Vector.h:252
LeftOperand leftOperand() const
Returns the left-hand side dense matrix operand.
Definition: DMatSVecMultExpr.h:272
BLAZE_ALWAYS_INLINE MT::Iterator end(Matrix< MT, SO > &matrix, size_t i)
Returns an iterator just past the last element of row/column i.
Definition: Matrix.h:250
#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:79
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:207
#define BLAZE_CONSTRAINT_MUST_BE_DENSE_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a dense, N-dimensional matrix type...
Definition: DenseMatrix.h:79
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:507
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2588
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:259
MultTrait< MRT, VRT >::Type ResultType
Result type for expression template evaluations.
Definition: DMatSVecMultExpr.h:162
Header file for the DenseVector base class.
Compile time check for lower triangular matrices.This type trait tests whether or not the given templ...
Definition: IsLower.h:90
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
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:90
Constraints on the storage order of matrix types.
Header file for the RequiresEvaluation type trait.
LeftOperand mat_
Left-hand side dense matrix of the multiplication expression.
Definition: DMatSVecMultExpr.h:333
VT::ResultType VRT
Result type of the right-hand side sparse vector expression.
Definition: DMatSVecMultExpr.h:110
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: DMatSVecMultExpr.h:249
Base class for dense matrices.The DenseMatrix class is a base class for all dense matrix classes...
Definition: DenseMatrix.h:70
Constraint on the data type.
Constraint on the transpose flag of vector types.
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: DMatSVecMultExpr.h:163
Constraint on the data type.
Header file for the MultExprTrait class template.
Compile time check to query the requirement to evaluate an expression.Via this type trait it is possi...
Definition: RequiresEvaluation.h:90
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:261
Expression object for dense matrix-sparse vector multiplications.The DMatSVecMultExpr class represent...
Definition: DMatSVecMultExpr.h:103
Compile time type selection.The SelectType class template selects one of the two given types T1 and T...
Definition: SelectType.h:59
Header file for the DisableIf class template.
Header file for the multiplication trait.
Header file for the IsStrictlyUpper type trait.
Header file for the IsSymmetric type trait.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
SelectType< evaluateVector, const VRT, VCT >::Type RT
Type for the assignment of the right-hand side dense matrix operand.
Definition: DMatSVecMultExpr.h:180
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2592
Header file for the Or class template.
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 exceptionThis macro encapsulates the default way of Bla...
Definition: Exception.h:331
RightOperand vec_
Right-hand side sparse vector of the multiplication expression.
Definition: DMatSVecMultExpr.h:334
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
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:79
SelectType< IsExpression< VT >::value, const VT, const VT & >::Type RightOperand
Composite type of the right-hand side dense vector expression.
Definition: DMatSVecMultExpr.h:174
Header file for the IsAligned type trait.
Base class for all matrix/vector multiplication expression templates.The MatVecMultExpr class serves ...
Definition: MatVecMultExpr.h:66
#define BLAZE_CONSTRAINT_MUST_NOT_BE_MATMATMULTEXPR_TYPE(T)
Constraint on the data type.In case the given data type T is a matrix/matrix multiplication expressio...
Definition: MatMatMultExpr.h:126
RightOperand rightOperand() const
Returns the right-hand side sparse vector operand.
Definition: DMatSVecMultExpr.h:282
#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:78
#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:166
Constraint on the data type.
Compile time check for strictly upper triangular matrices.This type trait tests whether or not the gi...
Definition: IsStrictlyUpper.h:86
Header file for the SelectType class template.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
Header file for the EnableIf class template.
Header file for the IsStrictlyLower type trait.
Header file for the serial shim.
MT::CompositeType MCT
Composite type of the left-hand side dense matrix expression.
Definition: DMatSVecMultExpr.h:111
EnableIf< IsDenseMatrix< MT1 > >::Type 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
#define BLAZE_CONSTRAINT_MUST_NOT_BE_SYMMETRIC_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is a symmetric matrix type, a compilation error is created.
Definition: Symmetric.h:116
Header file for the SubmatrixExprTrait class template.
#define BLAZE_CONSTRAINT_MUST_BE_ROW_MAJOR_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a row-major dense or sparse matrix t...
Definition: RowMajorMatrix.h:79
Removal of reference modifiers.The RemoveCV type trait removes any reference modifiers from the given...
Definition: RemoveReference.h:69
size_t size() const
Returns the current size/dimension of the vector.
Definition: DMatSVecMultExpr.h:262
Header file for run time assertion macros.
EnableIf< IsDenseMatrix< MT1 > >::Type 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
Base template for the MultTrait class.
Definition: MultTrait.h:138
SelectType< IsExpression< MT >::value, const MT, const MT & >::Type LeftOperand
Composite type of the left-hand side dense matrix expression.
Definition: DMatSVecMultExpr.h:171
Substitution Failure Is Not An Error (SFINAE) class.The EnableIf class template is an auxiliary tool ...
Definition: EnableIf.h:184
ResultType::ElementType ElementType
Resulting element type.
Definition: DMatSVecMultExpr.h:164
Header file for the reset shim.
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: DMatSVecMultExpr.h:294
Constraint on the data type.
Header file for the RemoveReference type trait.
Compile time check for strictly lower triangular matrices.This type trait tests whether or not the gi...
Definition: IsStrictlyLower.h:86
#define BLAZE_CONSTRAINT_MUST_BE_DENSE_VECTOR_TYPE(T)
Constraint on the data type.In case the given data type T is not a dense, N-dimensional vector type...
Definition: DenseVector.h:79
const ElementType ReturnType
Return type for expression template evaluations.
Definition: DMatSVecMultExpr.h:165
const DMatTransExpr< MT,!SO > trans(const DenseMatrix< MT, SO > &dm)
Calculation of the transpose of the given dense matrix.
Definition: DMatTransExpr.h:944
Header file for the IsComputation type trait class.
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: DMatSVecMultExpr.h:306
Base class for all compute expression templates.The Computation class serves as a tag for all computa...
Definition: Computation.h:59
EnableIf< IsDenseMatrix< MT1 > >::Type 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
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:118
#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
This ResultType
Result type for expression template evaluations.
Definition: CompressedMatrix.h:2583
BLAZE_ALWAYS_INLINE size_t columns(const Matrix< MT, SO > &matrix)
Returns the current number of columns of the matrix.
Definition: Matrix.h:324
Header file for the SubvectorExprTrait class template.
Constraint on the data type.
Header file for the IsUpper type trait.
Header file for exception macros.
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: DMatSVecMultExpr.h:212
Header file for the MatVecMultExpr base class.
SelectType< useAssign, const ResultType, const DMatSVecMultExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: DMatSVecMultExpr.h:168
DMatSVecMultExpr(const MT &mat, const VT &vec)
Constructor for the DMatSVecMultExpr class.
Definition: DMatSVecMultExpr.h:198
Constraint on the data type.
MT::ResultType MRT
Result type of the left-hand side dense matrix expression.
Definition: DMatSVecMultExpr.h:109
VT::CompositeType VCT
Composite type of the right-hand side sparse vector expression.
Definition: DMatSVecMultExpr.h:112
SelectType< evaluateMatrix, const MRT, MCT >::Type LT
Type for the assignment of the left-hand side dense matrix operand.
Definition: DMatSVecMultExpr.h:177
bool canSMPAssign() const
Returns whether the expression can be used in SMP assignments.
Definition: DMatSVecMultExpr.h:326
EnableIf< IsDenseVector< VT1 > >::Type 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:189
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
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.