35 #ifndef _BLAZE_MATH_EXPRESSIONS_SMATDVECMULTEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SMATDVECMULTEXPR_H_
90 class SMatDVecMultExpr :
public DenseVector< SMatDVecMultExpr<MT,VT>, false >
91 ,
private MatVecMultExpr
120 enum { useAssign = evaluateMatrix || evaluateVector };
125 template<
typename VT2 >
128 enum { value = useAssign };
139 template<
typename T1 >
140 struct UseSMPAssign {
141 enum { value = useAssign };
172 enum { vectorizable = 0 };
175 enum { smpAssignable = !evaluateMatrix && MT::smpAssignable &&
176 !evaluateVector && VT::smpAssignable };
207 if(
mat_.columns() == 0UL )
215 const ConstIterator end( A.end(index) );
216 ConstIterator element( A.begin(index) );
225 const size_t last( A.nonZeros(index) &
size_t(-2) );
228 for(
size_t i=0UL; i<last; i+=2UL )
231 const size_t index1( element->index() );
234 const size_t index2( element->index() );
237 tmp += value1 *
vec_[index1];
238 tmp2 += value2 * vec_[index2];
241 tmp += element->value() *
vec_[element->index()];
249 tmp = element->value() *
vec_[element->index()];
251 for( ; element!=end; ++element )
252 tmp += element->value() *
vec_[element->index()];
259 for(
size_t k=1UL; k<
mat_.columns(); ++k ) {
304 template<
typename T >
306 return (
mat_.isAliased( alias ) ||
vec_.isAliased( alias ) );
316 template<
typename T >
318 return (
mat_.isAliased( alias ) ||
vec_.isAliased( alias ) );
328 return vec_.isAligned();
364 template<
typename VT1 >
374 if( rhs.mat_.columns() == 0UL ) {
408 template<
typename VT1 >
442 template<
typename VT1 >
443 friend inline typename EnableIf< UseAssign<VT1> >::Type
452 if( rhs.mat_.columns() == 0UL ) {
489 template<
typename VT1 >
490 friend inline typename EnableIf< UseAssign<VT1> >::Type
499 if( rhs.mat_.columns() == 0UL ) {
536 template<
typename VT1 >
537 friend inline typename EnableIf< UseAssign<VT1> >::Type
573 template<
typename VT1 >
574 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
583 if( rhs.mat_.columns() == 0UL ) {
616 template<
typename VT1 >
617 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
649 template<
typename VT1 >
650 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
659 if( rhs.mat_.columns() == 0UL ) {
695 template<
typename VT1 >
696 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
705 if( rhs.mat_.columns() == 0UL ) {
741 template<
typename VT1 >
742 friend inline typename EnableIf< UseSMPAssign<VT1> >::Type
814 template<
typename T1
816 inline const typename DisableIf< IsMatMatMultExpr<T1>, SMatDVecMultExpr<T1,T2> >::Type
821 if( (~mat).
columns() != (~vec).size() )
822 throw std::invalid_argument(
"Matrix and vector sizes do not match" );
850 template<
typename T1
853 inline const typename EnableIf< IsMatMatMultExpr<T1>, MultExprTrait<T1,T2> >::Type::Type
858 return (~mat).leftOperand() * ( (~mat).rightOperand() * vec );
873 template<
typename MT,
typename VT,
bool AF >
874 struct SubvectorExprTrait< SMatDVecMultExpr<MT,VT>, AF >
878 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:96
void reset(DynamicMatrix< Type, SO > &m)
Resetting the given dense matrix.
Definition: DynamicMatrix.h:4599
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
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:4329
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SMatDVecMultExpr.h:150
VT::CompositeType VCT
Composite type of the right-hand side dense vector expression.
Definition: SMatDVecMultExpr.h:99
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:152
#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:199
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SMatDVecMultExpr.h:317
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:179
Expression object for sparse matrix-dense vector multiplications.The SMatDVecMultExpr class represent...
Definition: Forward.h:91
RightOperand rightOperand() const
Returns the right-hand side dense vector operand.
Definition: SMatDVecMultExpr.h:293
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2408
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:251
Header file for the DenseVector base class.
SelectType< useAssign, const ResultType, const SMatDVecMultExpr & >::Type CompositeType
Data type for composite expression templates.
Definition: SMatDVecMultExpr.h:155
LeftOperand leftOperand() const
Returns the left-hand side sparse matrix operand.
Definition: SMatDVecMultExpr.h:283
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:690
Header file for the Computation base class.
MultTrait< MRT, VRT >::Type ResultType
Result type for expression template evaluations.
Definition: SMatDVecMultExpr.h:149
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:107
Constraint on the data type.
RightOperand vec_
Right-hand side dense vector of the multiplication expression.
Definition: SMatDVecMultExpr.h:345
VT::ResultType VRT
Result type of the right-hand side dense vector expression.
Definition: SMatDVecMultExpr.h:97
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:122
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:253
LeftOperand mat_
Left-hand side sparse matrix of the multiplication expression.
Definition: SMatDVecMultExpr.h:344
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.
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2412
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:158
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:271
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
SelectType< evaluateMatrix, const MRT, MCT >::Type LT
Type for the assignment of the left-hand side sparse matrix operand.
Definition: SMatDVecMultExpr.h:164
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
SelectType< evaluateVector, const VRT, VCT >::Type RT
Type for the assignment of the right-hand side dense matrix operand.
Definition: SMatDVecMultExpr.h:167
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:361
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< MT, VT > This
Type of this SMatDVecMultExpr instance.
Definition: SMatDVecMultExpr.h:148
SelectType< IsExpression< VT >::value, const VT, const VT & >::Type RightOperand
Composite type of the right-hand side dense vector expression.
Definition: SMatDVecMultExpr.h:161
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:92
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:152
SMatDVecMultExpr(const MT &mat, const VT &vec)
Constructor for the SMatDVecMultExpr class.
Definition: SMatDVecMultExpr.h:185
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SMatDVecMultExpr.h:305
bool isAligned() const
Returns whether the operands of the expression are properly aligned in memory.
Definition: SMatDVecMultExpr.h:327
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:301
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:331
size_t size() const
Returns the current size/dimension of the vector.
Definition: SMatDVecMultExpr.h:273
Header file for the RemoveReference type trait.
MT::CompositeType MCT
Composite type of the left-hand side sparse matrix expression.
Definition: SMatDVecMultExpr.h:98
#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.
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:2403
size_t columns(const Matrix< MT, SO > &m)
Returns the current number of columns of the matrix.
Definition: Matrix.h:170
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:199
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:337
#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:151
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.