RooFit::EvalContext Class Reference

Definition at line 84 of file EvalContext.h.

Public Types
enum class	OffsetMode { WithoutOffset , WithOffset , OnlyOffset }

Public Member Functions
std::span< const double >	at (RooAbsArg const *arg, RooAbsArg const *caller=nullptr)
template<class T >
std::span< const double >	at (RooTemplateProxy< T > const &proxy)
RooBatchCompute::Config	config (RooAbsArg const *arg) const
void	enableVectorBuffers (bool enable)
std::span< double >	output ()
void	resetVectorBuffers ()
void	resize (std::size_t n)
void	set (RooAbsArg const *arg, std::span< const double > const &span)
void	setConfig (RooAbsArg const *arg, RooBatchCompute::Config const &config)
void	setOutputWithOffset (RooAbsArg const *arg, ROOT::Math::KahanSum< double > val, ROOT::Math::KahanSum< double > const &offset)
	Sets the output value with an offset.
auto	size () const

Private Attributes
std::size_t	_bufferIdx = 0
std::vector< std::vector< double > >	_buffers
std::vector< RooBatchCompute::Config >	_cfgs
std::vector< std::span< const double > >	_ctx
std::span< double >	_currentOutput
bool	_enableVectorBuffers = false
OffsetMode	_offsetMode = OffsetMode::WithoutOffset

Friends
class	Evaluator

#include <RooFit/EvalContext.h>

Member Enumeration Documentation

OffsetMode

enum class RooFit::EvalContext::OffsetMode

strong

Enumerator
WithoutOffset
WithOffset
OnlyOffset

Definition at line 86 of file EvalContext.h.

Member Function Documentation

at() [1/2]

std::span< const double > RooFit::EvalContext::at	(	RooAbsArg const *	arg,
		RooAbsArg const *	caller = nullptr
	)

Definition at line 35 of file EvalContext.cxx.

at() [2/2]

template<class T >

std::span< const double > RooFit::EvalContext::at ( RooTemplateProxy< T > const &  proxy )

inline

Definition at line 104 of file EvalContext.h.

config()

RooBatchCompute::Config RooFit::EvalContext::config

(

RooAbsArg const *

arg

)

const

Definition at line 73 of file EvalContext.cxx.

enableVectorBuffers()

void RooFit::EvalContext::enableVectorBuffers ( bool  enable )

inline

Definition at line 110 of file EvalContext.h.

output()

std::span< double > RooFit::EvalContext::output ( )

inline

Definition at line 112 of file EvalContext.h.

resetVectorBuffers()

void RooFit::EvalContext::resetVectorBuffers ( )

inline

Definition at line 111 of file EvalContext.h.

resize()

void RooFit::EvalContext::resize

(

std::size_t

n

)

Definition at line 82 of file EvalContext.cxx.

set()

void RooFit::EvalContext::set ( RooAbsArg const *  arg, std::span< const double > const &  span  )

inline

Definition at line 91 of file EvalContext.h.

setConfig()

void RooFit::EvalContext::setConfig	(	RooAbsArg const *	arg,
		RooBatchCompute::Config const &	config
	)

Definition at line 65 of file EvalContext.cxx.

setOutputWithOffset()

void RooFit::EvalContext::setOutputWithOffset	(	RooAbsArg const *	arg,
		ROOT::Math::KahanSum< double >	val,
		ROOT::Math::KahanSum< double > const &	offset
	)

Sets the output value with an offset.

This function sets the output value with an offset for the given argument. It should only be used in reducer nodes. Depending on the current OffsetMode, the result will either be just the value, the value minus the offset, of just the offset.

Parameters

arg	Pointer to the RooAbsArg object.
val	The value to be set.
offset	The offset value.

Exceptions

std::runtime_error

if the argument is not a reducer node.

Definition at line 100 of file EvalContext.cxx.

size()

auto RooFit::EvalContext::size ( ) const

inline

Definition at line 88 of file EvalContext.h.

Friends And Related Symbol Documentation

Evaluator

friend class Evaluator

friend

Definition at line 118 of file EvalContext.h.

Member Data Documentation

_bufferIdx

std::size_t RooFit::EvalContext::_bufferIdx = 0

private

Definition at line 125 of file EvalContext.h.

_buffers

std::vector<std::vector<double> > RooFit::EvalContext::_buffers

private

Definition at line 124 of file EvalContext.h.

_cfgs

std::vector<RooBatchCompute::Config> RooFit::EvalContext::_cfgs

private

Definition at line 126 of file EvalContext.h.

_ctx

std::vector<std::span<const double> > RooFit::EvalContext::_ctx

private

Definition at line 122 of file EvalContext.h.

_currentOutput

std::span<double> RooFit::EvalContext::_currentOutput

private

Definition at line 121 of file EvalContext.h.

_enableVectorBuffers

bool RooFit::EvalContext::_enableVectorBuffers = false

private

Definition at line 123 of file EvalContext.h.

_offsetMode

OffsetMode RooFit::EvalContext::_offsetMode = OffsetMode::WithoutOffset

private

Definition at line 120 of file EvalContext.h.

Libraries for RooFit::EvalContext:

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The documentation for this class was generated from the following files:

• roofit/roofitcore/inc/RooFit/EvalContext.h
• roofit/roofitcore/src/RooFit/EvalContext.cxx