35 #ifndef _BLAZE_MATH_EXPRESSIONS_DMATSVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_DMATSVECMULTEXPR_H_
128 enum { useAssign = evaluateMatrix || evaluateVector };
133 template<
typename VT2 >
136 enum { value = useAssign };
147 template<
typename T1 >
148 struct UseSMPAssign {
149 enum { value = useAssign };
180 enum { vectorizable = 0 };
183 enum { smpAssignable = !evaluateMatrix && MT::smpAssignable &&
184 !evaluateVector && VT::smpAssignable };
216 ConstIterator element( x.begin() );
219 if( element != x.end() ) {
220 res =
mat_( index, element->index() ) * element->value();
222 for( ; element!=x.end(); ++element )
223 res +=
mat_( index, element->index() ) * element->value();
269 template<
typename T >
271 return mat_.isAliased( alias ) ||
vec_.isAliased( alias );
281 template<
typename T >
283 return mat_.isAliased( alias ) ||
vec_.isAliased( alias );
293 return mat_.isAligned();
329 template<
typename VT1 >
341 if( x.nonZeros() == 0UL ) {
377 template<
typename VT1 >
411 template<
typename VT1 >
412 friend inline typename EnableIf< UseAssign<VT1> >::Type
423 if( x.nonZeros() == 0UL )
return;
460 template<
typename VT1 >
461 friend inline typename EnableIf< UseAssign<VT1> >::Type
472 if( x.nonZeros() == 0UL )
return;
509 template<
typename VT1 >
510 friend inline typename EnableIf< UseAssign<VT1> >::Type
546 template<
typename VT1 >
547 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
558 if( x.nonZeros() == 0UL ) {
593 template<
typename VT1 >
594 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
626 template<
typename VT1 >
627 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
638 if( x.nonZeros() == 0UL )
return;
674 template<
typename VT1 >
675 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
686 if( x.nonZeros() == 0UL )
return;
722 template<
typename VT1 >
723 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
797 template<
typename T1
799 inline const typename DisableIf< Or< IsSymmetric<T1>, IsMatMatMultExpr<T1> >
800 , DMatSVecMultExpr<T1,T2> >::Type
806 throw std::invalid_argument(
"Matrix and vector sizes do not match" );
836 template<
typename T1
838 inline const typename EnableIf< IsSymmetric<T1>,
typename MultExprTrait<T1,T2>::Type >::Type
839 operator*(
const DenseMatrix<T1,false>& mat,
const SparseVector<T2,false>& vec )
846 throw std::invalid_argument(
"Matrix and vector sizes do not match" );
848 return trans( ~mat ) * (~vec);
868 template<
typename T1
871 inline const typename EnableIf< IsMatMatMultExpr<T1>,
typename MultExprTrait<T1,T2>::Type >::Type
872 operator*(
const DenseMatrix<T1,SO>& mat,
const SparseVector<T2,false>& vec )
878 return (~mat).leftOperand() * ( (~mat).rightOperand() * vec );
894 template<
typename MT,
typename VT >
895 struct Size< DMatSVecMultExpr<MT,VT> >
912 template<
typename MT,
typename VT,
bool AF >
913 struct SubvectorExprTrait< DMatSVecMultExpr<MT,VT>, AF >
917 typedef typename MultExprTrait< typename SubmatrixExprTrait<const MT,AF>::Type, VT >::Type Type;
bool isAligned() const
Returns whether the operands of the expression are properly aligned in memory.
Definition: DMatSVecMultExpr.h:292
Compile time check whether the given type is a computational expression template.This type trait clas...
Definition: IsComputation.h:89
BLAZE_ALWAYS_INLINE void multAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the multiplication assignment of a matrix to a matrix.
Definition: Matrix.h:879
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:4838
DMatSVecMultExpr< MT, VT > This
Type of this DMatSVecMultExpr instance.
Definition: DMatSVecMultExpr.h:156
BLAZE_ALWAYS_INLINE size_t size(const Vector< VT, TF > &vector)
Returns the current size/dimension of the vector.
Definition: Vector.h:258
LeftOperand leftOperand() const
Returns the left-hand side dense matrix operand.
Definition: DMatSVecMultExpr.h:248
#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: TransposeFlag.h:159
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:205
#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
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2478
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:257
MultTrait< MRT, VRT >::Type ResultType
Result type for expression template evaluations.
Definition: DMatSVecMultExpr.h:157
Header file for the DenseVector base class.
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:695
Header file for the Computation base class.
Header file for the RequiresEvaluation type trait.
LeftOperand mat_
Left-hand side dense matrix of the multiplication expression.
Definition: DMatSVecMultExpr.h:309
VT::ResultType VRT
Result type of the right-hand side sparse vector expression.
Definition: DMatSVecMultExpr.h:105
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.
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: DMatSVecMultExpr.h:158
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:259
Expression object for dense matrix-sparse vector multiplications.The DMatSVecMultExpr class represent...
Definition: DMatSVecMultExpr.h:98
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 IsSymmetric type trait.
SelectType< evaluateVector, const VRT, VCT >::Type RT
Type for the assignment of the right-hand side dense matrix operand.
Definition: DMatSVecMultExpr.h:175
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2482
Header file for the Or class template.
Header file for the IsMatMatMultExpr type trait class.
BLAZE_ALWAYS_INLINE void assign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the assignment of a matrix to a matrix.
Definition: Matrix.h:635
RightOperand vec_
Right-hand side sparse vector of the multiplication expression.
Definition: DMatSVecMultExpr.h:310
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
#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:169
Constraint on the data type.
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:258
#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
Constraints on the storage order of matrix types.
Constraint on the data type.
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 serial shim.
MT::CompositeType MCT
Composite type of the left-hand side dense matrix expression.
Definition: DMatSVecMultExpr.h:106
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: StorageOrder.h:81
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:238
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:142
BLAZE_ALWAYS_INLINE void addAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the addition assignment of a matrix to a matrix.
Definition: Matrix.h:742
SelectType< IsExpression< MT >::value, const MT, const MT & >::Type LeftOperand
Composite type of the left-hand side dense matrix expression.
Definition: DMatSVecMultExpr.h:166
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:159
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:270
Constraint on the data type.
BLAZE_ALWAYS_INLINE void reset(const NonNumericProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: NonNumericProxy.h:833
Header file for the RemoveReference type trait.
const size_t SMP_DMATSVECMULT_THRESHOLD
SMP row-major dense matrix/sparse vector multiplication threshold.This threshold specifies when a row...
Definition: Thresholds.h:414
#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:160
const DMatTransExpr< MT,!SO > trans(const DenseMatrix< MT, SO > &dm)
Calculation of the transpose of the given dense matrix.
Definition: DMatTransExpr.h:932
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:282
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:108
#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:2473
BLAZE_ALWAYS_INLINE size_t columns(const Matrix< MT, SO > &matrix)
Returns the current number of columns of the matrix.
Definition: Matrix.h:332
Header file for basic type definitions.
Header file for the SubvectorExprTrait class template.
Constraint on the data type.
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: DMatSVecMultExpr.h:207
Header file for the MatVecMultExpr base class.
SelectType< useAssign, const ResultType, const DMatSVecMultExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: DMatSVecMultExpr.h:163
DMatSVecMultExpr(const MT &mat, const VT &vec)
Constructor for the DMatSVecMultExpr class.
Definition: DMatSVecMultExpr.h:193
Constraint on the data type.
MT::ResultType MRT
Result type of the left-hand side dense matrix expression.
Definition: DMatSVecMultExpr.h:104
VT::CompositeType VCT
Composite type of the right-hand side sparse vector expression.
Definition: DMatSVecMultExpr.h:107
SelectType< evaluateMatrix, const MRT, MCT >::Type LT
Type for the assignment of the left-hand side dense matrix operand.
Definition: DMatSVecMultExpr.h:172
bool canSMPAssign() const
Returns whether the expression can be used in SMP assignments.
Definition: DMatSVecMultExpr.h:302
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.
BLAZE_ALWAYS_INLINE void subAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the subtraction assignment of a matrix to matrix.
Definition: Matrix.h:849