35 #ifndef _BLAZE_MATH_EXPRESSIONS_SMATDVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SMATDVECMULTEXPR_H_
94 class SMatDVecMultExpr :
public DenseVector< SMatDVecMultExpr<MT,VT>, false >
95 ,
private MatVecMultExpr
124 enum { useAssign = evaluateMatrix || evaluateVector };
129 template<
typename VT2 >
132 enum { value = useAssign };
143 template<
typename T1 >
144 struct UseSMPAssign {
145 enum { value = useAssign };
176 enum { vectorizable = 0 };
179 enum { smpAssignable = !evaluateMatrix && MT::smpAssignable &&
180 !evaluateVector && VT::smpAssignable };
211 if(
mat_.columns() == 0UL )
219 const ConstIterator
end( A.end(index) );
220 ConstIterator element( A.begin(index) );
229 const size_t ipos( A.nonZeros(index) &
size_t(-2) );
232 for(
size_t i=0UL; i<ipos; i+=2UL )
234 const ElementType value1( element->value() );
235 const size_t index1( element->index() );
237 const ElementType value2( element->value() );
238 const size_t index2( element->index() );
241 tmp += value1 *
vec_[index1];
242 tmp2 += value2 * vec_[index2];
245 tmp += element->value() *
vec_[element->index()];
253 tmp = element->value() *
vec_[element->index()];
255 for( ; element!=
end; ++element )
256 tmp += element->value() *
vec_[element->index()];
263 for(
size_t k=1UL; k<
mat_.columns(); ++k ) {
308 template<
typename T >
310 return (
mat_.isAliased( alias ) ||
vec_.isAliased( alias ) );
320 template<
typename T >
322 return (
mat_.isAliased( alias ) ||
vec_.isAliased( alias ) );
332 return vec_.isAligned();
368 template<
typename VT1 >
378 if( rhs.mat_.columns() == 0UL ) {
383 LT A(
serial( rhs.mat_ ) );
384 RT x(
serial( rhs.vec_ ) );
412 template<
typename VT1 >
424 const ResultType tmp(
serial( rhs ) );
446 template<
typename VT1 >
447 friend inline typename EnableIf< UseAssign<VT1> >::Type
456 if( rhs.mat_.columns() == 0UL ) {
460 LT A(
serial( rhs.mat_ ) );
461 RT x(
serial( rhs.vec_ ) );
493 template<
typename VT1 >
494 friend inline typename EnableIf< UseAssign<VT1> >::Type
503 if( rhs.mat_.columns() == 0UL ) {
507 LT A(
serial( rhs.mat_ ) );
508 RT x(
serial( rhs.vec_ ) );
540 template<
typename VT1 >
541 friend inline typename EnableIf< UseAssign<VT1> >::Type
552 const ResultType tmp(
serial( rhs ) );
577 template<
typename VT1 >
578 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
587 if( rhs.mat_.columns() == 0UL ) {
620 template<
typename VT1 >
621 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
632 const ResultType tmp( rhs );
653 template<
typename VT1 >
654 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
663 if( rhs.mat_.columns() == 0UL ) {
699 template<
typename VT1 >
700 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
709 if( rhs.mat_.columns() == 0UL ) {
745 template<
typename VT1 >
746 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
757 const ResultType tmp( rhs );
819 template<
typename T1
821 inline const typename DisableIf< IsMatMatMultExpr<T1>, SMatDVecMultExpr<T1,T2> >::Type
827 throw std::invalid_argument(
"Matrix and vector sizes do not match" );
855 template<
typename T1
858 inline const typename EnableIf< IsMatMatMultExpr<T1>,
typename MultExprTrait<T1,T2>::Type >::Type
865 return (~mat).leftOperand() * ( (~mat).rightOperand() * vec );
880 template<
typename MT,
typename VT >
881 struct Size< SMatDVecMultExpr<MT,VT> >
898 template<
typename MT,
typename VT,
bool AF >
899 struct SubvectorExprTrait< SMatDVecMultExpr<MT,VT>, AF >
903 typedef typename MultExprTrait< typename SubmatrixExprTrait<const MT,AF>::Type
904 ,
typename SubvectorExprTrait<const VT,AF>::Type >::Type Type;
Compile time check whether the given type is a computational expression template.This type trait clas...
Definition: IsComputation.h:89
Compile time check for numeric types.This type trait tests whether or not the given template paramete...
Definition: IsNumeric.h:98
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
const size_t SMP_SMATDVECMULT_THRESHOLD
SMP row-major sparse matrix/dense vector multiplication threshold.This threshold specifies when a row...
Definition: Thresholds.h:506
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:8247
Header file for basic type definitions.
BLAZE_ALWAYS_INLINE size_t size(const Vector< VT, TF > &vector)
Returns the current size/dimension of the vector.
Definition: Vector.h:264
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:258
#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:209
Expression object for sparse matrix-dense vector multiplications.The SMatDVecMultExpr class represent...
Definition: Forward.h:91
void reset(const DiagonalProxy< MT > &proxy)
Resetting the represented element to the default initial values.
Definition: DiagonalProxy.h:821
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2507
ResultType::ElementType ElementType
Resulting element type.
Definition: SMatDVecMultExpr.h:155
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:261
LeftOperand leftOperand() const
Returns the left-hand side sparse matrix operand.
Definition: SMatDVecMultExpr.h:287
Header file for the DenseVector base class.
MultTrait< MRT, VRT >::Type ResultType
Result type for expression template evaluations.
Definition: SMatDVecMultExpr.h:153
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:699
Header file for the Computation base class.
Header file for the RequiresEvaluation type trait.
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SMatDVecMultExpr.h:309
RightOperand rightOperand() const
Returns the right-hand side dense vector operand.
Definition: SMatDVecMultExpr.h:297
size_t size() const
Returns the current size/dimension of the vector.
Definition: SMatDVecMultExpr.h:277
Base class for sparse matrices.The SparseMatrix class is a base class for all sparse matrix classes...
Definition: Forward.h:107
Constraint on the data type.
SelectType< useAssign, const ResultType, const SMatDVecMultExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: SMatDVecMultExpr.h:159
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:263
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.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2511
SelectType< evaluateVector, const VRT, VCT >::Type RT
Type for the assignment of the right-hand side dense matrix operand.
Definition: SMatDVecMultExpr.h:171
RightOperand vec_
Right-hand side dense vector of the multiplication expression.
Definition: SMatDVecMultExpr.h:349
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
LeftOperand mat_
Left-hand side sparse matrix of the multiplication expression.
Definition: SMatDVecMultExpr.h:348
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
Constraint on the data type.
SelectType< IsExpression< VT >::value, const VT, const VT & >::Type RightOperand
Composite type of the right-hand side dense vector expression.
Definition: SMatDVecMultExpr.h:165
#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
bool canSMPAssign() const
Returns whether the expression can be used in SMP assignments.
Definition: SMatDVecMultExpr.h:341
#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.
MT::ResultType MRT
Result type of the left-hand side sparse matrix expression.
Definition: SMatDVecMultExpr.h:100
Constraint on the data type.
Header file for the SelectType class template.
Header file for all forward declarations for expression class templates.
Header file for the EnableIf class template.
Header file for the serial shim.
SMatDVecMultExpr(const MT &mat, const VT &vec)
Constructor for the SMatDVecMultExpr class.
Definition: SMatDVecMultExpr.h:189
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SMatDVecMultExpr.h:321
SelectType< IsExpression< MT >::value, const MT, const MT & >::Type LeftOperand
Composite type of the left-hand side sparse matrix expression.
Definition: SMatDVecMultExpr.h:162
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
const ElementType ReturnType
Return type for expression template evaluations.
Definition: SMatDVecMultExpr.h:156
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
MT::CompositeType MCT
Composite type of the left-hand side sparse matrix expression.
Definition: SMatDVecMultExpr.h:102
Base template for the MultTrait class.
Definition: MultTrait.h:150
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
Substitution Failure Is Not An Error (SFINAE) class.The EnableIf class template is an auxiliary tool ...
Definition: EnableIf.h:184
Header file for the reset shim.
Constraint on the data type.
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SMatDVecMultExpr.h:154
Header file for the RemoveReference type trait.
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SMatDVecMultExpr.h:203
#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
Header file for the IsComputation type trait class.
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
SelectType< evaluateMatrix, const MRT, MCT >::Type LT
Type for the assignment of the left-hand side sparse matrix operand.
Definition: SMatDVecMultExpr.h:168
SMatDVecMultExpr< MT, VT > This
Type of this SMatDVecMultExpr instance.
Definition: SMatDVecMultExpr.h:152
#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:2502
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 the SubvectorExprTrait class template.
Constraint on the data type.
bool isAligned() const
Returns whether the operands of the expression are properly aligned in memory.
Definition: SMatDVecMultExpr.h:331
VT::ResultType VRT
Result type of the right-hand side dense vector expression.
Definition: SMatDVecMultExpr.h:101
Header file for the MatVecMultExpr base class.
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.
VT::CompositeType VCT
Composite type of the right-hand side dense vector expression.
Definition: SMatDVecMultExpr.h:103
Size type of the Blaze library.
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:79
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