35 #ifndef _BLAZE_MATH_SMP_THREADS_DENSEVECTOR_H_ 36 #define _BLAZE_MATH_SMP_THREADS_DENSEVECTOR_H_ 95 template<
typename VT1
100 void threadAssign( DenseVector<VT1,TF1>& lhs,
const DenseVector<VT2,TF2>& rhs, OP op )
106 using ET1 = ElementType_t<VT1>;
107 using ET2 = ElementType_t<VT2>;
109 constexpr
bool simdEnabled( VT1::simdEnabled && VT2::simdEnabled && IsSIMDCombinable_v<ET1,ET2> );
110 constexpr
size_t SIMDSIZE( SIMDTrait< ElementType_t<VT1> >::
size );
112 const bool lhsAligned( (~lhs).isAligned() );
113 const bool rhsAligned( (~rhs).isAligned() );
116 const size_t addon ( ( ( (~lhs).
size() % threads ) != 0UL )? 1UL : 0UL );
117 const size_t equalShare ( (~lhs).
size() / threads + addon );
118 const size_t rest ( equalShare & ( SIMDSIZE - 1UL ) );
119 const size_t sizePerThread( ( simdEnabled && rest )?( equalShare - rest + SIMDSIZE ):( equalShare ) );
121 for(
size_t i=0UL; i<threads; ++i )
123 const size_t index( i*sizePerThread );
125 if( index >= (~lhs).
size() )
128 const size_t size(
min( sizePerThread, (~lhs).
size() - index ) );
130 if( simdEnabled && lhsAligned && rhsAligned ) {
131 auto target( subvector<aligned>( ~lhs, index,
size,
unchecked ) );
132 const auto source( subvector<aligned>( ~rhs, index,
size,
unchecked ) );
133 TheThreadBackend::schedule( target, source, op );
135 else if( simdEnabled && lhsAligned ) {
136 auto target( subvector<aligned>( ~lhs, index,
size,
unchecked ) );
137 const auto source( subvector<unaligned>( ~rhs, index,
size,
unchecked ) );
138 TheThreadBackend::schedule( target, source, op );
140 else if( simdEnabled && rhsAligned ) {
141 auto target( subvector<unaligned>( ~lhs, index,
size,
unchecked ) );
142 const auto source( subvector<aligned>( ~rhs, index,
size,
unchecked ) );
143 TheThreadBackend::schedule( target, source, op );
146 auto target( subvector<unaligned>( ~lhs, index,
size,
unchecked ) );
147 const auto source( subvector<unaligned>( ~rhs, index,
size,
unchecked ) );
148 TheThreadBackend::schedule( target, source, op );
152 TheThreadBackend::wait();
176 template<
typename VT1
181 void threadAssign( DenseVector<VT1,TF1>& lhs,
const SparseVector<VT2,TF2>& rhs, OP op )
188 const size_t addon ( ( ( (~lhs).
size() % threads ) != 0UL )? 1UL : 0UL );
189 const size_t sizePerThread( (~lhs).
size() / threads + addon );
191 for(
size_t i=0UL; i<threads; ++i )
193 const size_t index( i*sizePerThread );
195 if( index >= (~lhs).
size() )
198 const size_t size(
min( sizePerThread, (~lhs).
size() - index ) );
199 auto target( subvector<unaligned>( ~lhs, index,
size,
unchecked ) );
200 const auto source( subvector<unaligned>( ~rhs, index,
size,
unchecked ) );
201 TheThreadBackend::schedule( target, source, op );
204 TheThreadBackend::wait();
236 template<
typename VT1
240 inline auto smpAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
241 -> EnableIf_t< IsDenseVector_v<VT1> && ( !IsSMPAssignable_v<VT1> || !IsSMPAssignable_v<VT2> ) >
247 assign( ~lhs, ~rhs );
271 template<
typename VT1
275 inline auto smpAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
276 -> EnableIf_t< IsDenseVector_v<VT1> && IsSMPAssignable_v<VT1> && IsSMPAssignable_v<VT2> >
288 assign( ~lhs, ~rhs );
291 threadAssign( ~lhs, ~rhs, Assign() );
326 template<
typename VT1
330 inline auto smpAddAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
331 -> EnableIf_t< IsDenseVector_v<VT1> && ( !IsSMPAssignable_v<VT1> || !IsSMPAssignable_v<VT2> ) >
337 addAssign( ~lhs, ~rhs );
361 template<
typename VT1
365 inline auto smpAddAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
366 -> EnableIf_t< IsDenseVector_v<VT1> && IsSMPAssignable_v<VT1> && IsSMPAssignable_v<VT2> >
378 addAssign( ~lhs, ~rhs );
381 threadAssign( ~lhs, ~rhs, AddAssign() );
416 template<
typename VT1
420 inline auto smpSubAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
421 -> EnableIf_t< IsDenseVector_v<VT1> && ( !IsSMPAssignable_v<VT1> || !IsSMPAssignable_v<VT2> ) >
427 subAssign( ~lhs, ~rhs );
452 template<
typename VT1
456 inline auto smpSubAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
457 -> EnableIf_t< IsDenseVector_v<VT1> && IsSMPAssignable_v<VT1> && IsSMPAssignable_v<VT2> >
469 subAssign( ~lhs, ~rhs );
472 threadAssign( ~lhs, ~rhs, SubAssign() );
507 template<
typename VT1
511 inline auto smpMultAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
512 -> EnableIf_t< IsDenseVector_v<VT1> && ( !IsSMPAssignable_v<VT1> || !IsSMPAssignable_v<VT2> ) >
518 multAssign( ~lhs, ~rhs );
543 template<
typename VT1
547 inline auto smpMultAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
548 -> EnableIf_t< IsDenseVector_v<VT1> && IsSMPAssignable_v<VT1> && IsSMPAssignable_v<VT2> >
560 multAssign( ~lhs, ~rhs );
563 threadAssign( ~lhs, ~rhs, MultAssign() );
598 template<
typename VT1
602 inline auto smpDivAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
603 -> EnableIf_t< IsDenseVector_v<VT1> && ( !IsSMPAssignable_v<VT1> || !IsSMPAssignable_v<VT2> ) >
609 divAssign( ~lhs, ~rhs );
633 template<
typename VT1
637 inline auto smpDivAssign( Vector<VT1,TF1>& lhs,
const Vector<VT2,TF2>& rhs )
638 -> EnableIf_t< IsDenseVector_v<VT1> && IsSMPAssignable_v<VT1> && IsSMPAssignable_v<VT2> >
650 divAssign( ~lhs, ~rhs );
653 threadAssign( ~lhs, ~rhs, DivAssign() );
Header file for auxiliary alias declarations.
Headerfile for the generic min algorithm.
Header file for basic type definitions.
Header file for the SparseVector base class.
Header file for the Assign functor.
#define BLAZE_BOOST_THREADS_PARALLEL_MODE
Compilation switch for the Boost parallelization.This compilation switch enables/disables the paralle...
Definition: SMP.h:152
constexpr Unchecked unchecked
Global Unchecked instance.The blaze::unchecked instance is an optional token for the creation of view...
Definition: Check.h:138
Header file for the AddAssign functor.
Header file for the DenseVector base class.
Header file for the SIMD trait.
auto smpDivAssign(Vector< VT1, TF1 > &lhs, const Vector< VT2, TF2 > &rhs) -> EnableIf_t< IsDenseVector_v< VT1 > >
Default implementation of the SMP division assignment of a vector to a dense vector.
Definition: DenseVector.h:220
#define BLAZE_CONSTRAINT_MUST_NOT_BE_SMP_ASSIGNABLE(T)
Constraint on the data type.In case the given data type T is SMP-assignable (can be assigned by multi...
Definition: SMPAssignable.h:81
Header file for the implementation of the Subvector view.
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
Header file for the SubAssign functor.
System settings for the shared-memory parallelization.
Header file for the IsSMPAssignable type trait.
decltype(auto) min(const DenseMatrix< MT1, SO1 > &lhs, const DenseMatrix< MT2, SO2 > &rhs)
Computes the componentwise minimum of the dense matrices lhs and rhs.
Definition: DMatDMatMapExpr.h:1147
Header file for the serial section implementation.
#define BLAZE_CPP_THREADS_PARALLEL_MODE
Compilation switch for the C++11 parallelization.This compilation switch enables/disables the paralle...
Definition: SMP.h:124
Header file for the parallel section implementation.
Header file for the EnableIf class template.
#define BLAZE_PARALLEL_SECTION
Section for the debugging of the shared-memory parallelization.During the shared-memory parallel (SMP...
Definition: ParallelSection.h:254
bool isSerialSectionActive()
Returns whether a serial section is active or not.
Definition: SerialSection.h:213
Header file for the IsSIMDCombinable type trait.
Header file for run time assertion macros.
auto smpAddAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP addition assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:131
#define BLAZE_FUNCTION_TRACE
Function trace macro.This macro can be used to reliably trace function calls. In case function tracin...
Definition: FunctionTrace.h:94
constexpr size_t size(const Matrix< MT, SO > &matrix) noexcept
Returns the total number of elements of the matrix.
Definition: Matrix.h:530
auto smpAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:100
Header file for the IsDenseVector type trait.
bool isParallelSectionActive()
Returns whether a parallel section is active or not.
Definition: ParallelSection.h:221
Header file for the MultAssign functor.
auto smpSubAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs) -> EnableIf_t< IsDenseMatrix_v< MT1 > >
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:162
Header file for the C++11 and Boost thread backend.
#define BLAZE_STATIC_ASSERT(expr)
Compile time assertion macro.In case of an invalid compile time expression, a compilation error is cr...
Definition: StaticAssert.h:112
#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
auto smpMultAssign(Vector< VT1, TF1 > &lhs, const Vector< VT2, TF2 > &rhs) -> EnableIf_t< IsDenseVector_v< VT1 > >
Default implementation of the SMP multiplication assignment of a vector to a dense vector...
Definition: DenseVector.h:191
Header file for the DivAssign functor.
Constraint on the data type.
Header file for the function trace functionality.