35 #ifndef _BLAZE_MATH_EXPRESSIONS_SMATDVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SMATDVECMULTEXPR_H_
91 class SMatDVecMultExpr :
public DenseVector< SMatDVecMultExpr<MT,VT>, false >
92 ,
private MatVecMultExpr
116 template<
typename VT2 >
119 enum { value = useAssign };
150 enum { vectorizable = 0 };
153 enum { smpAssignable = !useAssign };
184 if(
mat_.columns() == 0UL )
192 const ConstIterator end( A.end(index) );
193 ConstIterator element( A.begin(index) );
202 const size_t last( A.nonZeros(index) &
size_t(-2) );
205 for(
size_t i=0UL; i<last; i+=2UL )
207 const ElementType value1( element->value() );
208 const size_t index1( element->index() );
210 const ElementType value2( element->value() );
211 const size_t index2( element->index() );
214 tmp += value1 *
vec_[index1];
215 tmp2 += value2 * vec_[index2];
218 tmp += element->value() *
vec_[element->index()];
226 tmp = element->value() *
vec_[element->index()];
228 for( ; element!=end; ++element )
229 tmp += element->value() *
vec_[element->index()];
236 for(
size_t k=1UL; k<
mat_.columns(); ++k ) {
281 template<
typename T >
283 return (
mat_.isAliased( alias ) ||
vec_.isAliased( alias ) );
293 template<
typename T >
295 return (
mat_.isAliased( alias ) ||
vec_.isAliased( alias ) );
305 return vec_.isAligned();
341 template<
typename VT1 >
351 if( rhs.mat_.columns() == 0UL ) {
385 template<
typename VT1 >
397 const ResultType tmp( rhs );
419 template<
typename VT1 >
420 friend inline typename EnableIf< UseAssign<VT1> >::Type
429 if( rhs.mat_.columns() == 0UL ) {
466 template<
typename VT1 >
467 friend inline typename EnableIf< UseAssign<VT1> >::Type
476 if( rhs.mat_.columns() == 0UL ) {
513 template<
typename VT1 >
514 friend inline typename EnableIf< UseAssign<VT1> >::Type
525 const ResultType tmp( rhs );
586 template<
typename T1
588 inline const typename DisableIf< IsMatMatMultExpr<T1>, SMatDVecMultExpr<T1,T2> >::Type
594 throw std::invalid_argument(
"Matrix and vector sizes do not match" );
622 template<
typename T1
625 inline const typename EnableIf< IsMatMatMultExpr<T1>, MultExprTrait<T1,T2> >::Type::Type
630 return (~mat).leftOperand() * ( (~mat).
rightOperand() * vec );
645 template<
typename MT,
typename VT,
bool AF >
650 typedef typename MultExprTrait< typename SubmatrixExprTrait<const MT,AF>::Type, VT >::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
MT::ResultType MRT
Result type of the left-hand side sparse matrix expression.
Definition: SMatDVecMultExpr.h:97
void reset(DynamicMatrix< Type, SO > &m)
Resetting the given dense matrix.
Definition: DynamicMatrix.h:4579
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:4075
const size_t SMP_SMATDVECMULT_THRESHOLD
SMP row-major sparse matrix/dense vector multiplication threshold.This threshold represents the syste...
Definition: Thresholds.h:243
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SMatDVecMultExpr.h:128
VT::CompositeType VCT
Composite type of the right-hand side dense vector expression.
Definition: SMatDVecMultExpr.h:100
void smpSubAssign(DenseMatrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:151
#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:197
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SMatDVecMultExpr.h:294
void smpMultAssign(DenseVector< 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:178
Expression object for sparse matrix-dense vector multiplications.The SMatDVecMultExpr class represent...
Definition: Forward.h:89
RightOperand rightOperand() const
Returns the right-hand side dense vector operand.
Definition: SMatDVecMultExpr.h:270
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2384
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:249
Header file for the DenseVector base class.
SelectType< useAssign, const ResultType, const SMatDVecMultExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: SMatDVecMultExpr.h:133
LeftOperand leftOperand() const
Returns the left-hand side sparse matrix operand.
Definition: SMatDVecMultExpr.h:260
Header file for the Computation base class.
MultTrait< MRT, VRT >::Type ResultType
Result type for expression template evaluations.
Definition: SMatDVecMultExpr.h:127
Header file for the RequiresEvaluation type trait.
Base class for sparse matrices.The SparseMatrix class is a base class for all sparse matrix classes...
Definition: Forward.h:104
SelectType< IsComputation< VT >::value, const VRT, VCT >::Type RT
Type for the assignment of the right-hand side dense matrix operand.
Definition: SMatDVecMultExpr.h:145
Constraint on the data type.
RightOperand vec_
Right-hand side dense vector of the multiplication expression.
Definition: SMatDVecMultExpr.h:322
VT::ResultType VRT
Result type of the right-hand side dense vector expression.
Definition: SMatDVecMultExpr.h:98
Constraint on the data type.
Header file for the MultExprTrait class template.
void smpAddAssign(DenseMatrix< 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:121
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:251
LeftOperand mat_
Left-hand side sparse matrix of the multiplication expression.
Definition: SMatDVecMultExpr.h:321
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 dense vector SMP implementation.
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2388
MCT LT
Type for the assignment of the left-hand side sparse matrix operand.
Definition: SMatDVecMultExpr.h:142
Header file for the IsMatMatMultExpr type trait class.
SelectType< IsExpression< MT >::value, const MT, const MT & >::Type LeftOperand
Composite type of the left-hand side sparse matrix expression.
Definition: SMatDVecMultExpr.h:136
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:179
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.
#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
Constraints on the storage order of matrix types.
Constraint on the data type.
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:269
Header file for the SelectType class template.
Header file for all forward declarations for expression class templates.
Header file for the EnableIf class template.
SMatDVecMultExpr< MT, VT > This
Type of this SMatDVecMultExpr instance.
Definition: SMatDVecMultExpr.h:126
SelectType< IsExpression< VT >::value, const VT, const VT & >::Type RightOperand
Composite type of the right-hand side dense vector expression.
Definition: SMatDVecMultExpr.h:139
void smpAssign(DenseMatrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:91
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:130
SMatDVecMultExpr(const MT &mat, const VT &vec)
Constructor for the SMatDVecMultExpr class.
Definition: SMatDVecMultExpr.h:162
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SMatDVecMultExpr.h:282
bool isAligned() const
Returns whether the operands of the expression are properly aligned in memory.
Definition: SMatDVecMultExpr.h:304
Header file for run time assertion macros.
Base template for the MultTrait class.
Definition: MultTrait.h:141
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:209
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.
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:239
size_t size() const
Returns the current size/dimension of the vector.
Definition: SMatDVecMultExpr.h:250
Header file for the RemoveReference type trait.
MT::CompositeType MCT
Composite type of the left-hand side sparse matrix expression.
Definition: SMatDVecMultExpr.h:99
#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.
Header file for the sparse vector SMP implementation.
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:105
#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:2379
size_t columns(const Matrix< MT, SO > &m)
Returns the current number of columns of the matrix.
Definition: Matrix.h:154
Header file for basic type definitions.
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SMatDVecMultExpr.h:176
Header file for the SubvectorExprTrait class template.
Header file for the MatVecMultExpr base class.
Size type of the Blaze library.
Header file for the thresholds for matrix/vector and matrix/matrix multiplications.
bool canSMPAssign() const
Returns whether the expression can be used in SMP assignments.
Definition: SMatDVecMultExpr.h:314
#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
ResultType::ElementType ElementType
Resulting element type.
Definition: SMatDVecMultExpr.h:129
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.