xgboost::common::ParallelGHistBuilder< GradientSumT > Class Template Reference

Stores temporary histograms to compute them in parallel Supports processing multiple tree-nodes for nested parallelism Able to reduce histograms across threads in efficient way. More...

#include <hist_util.h>

Collaboration diagram for xgboost::common::ParallelGHistBuilder< GradientSumT >:

Public Types
using	GHistRowT = GHistRow< GradientSumT >

Public Member Functions
void	Init (size_t nbins)
void	Reset (size_t nthreads, size_t nodes, const BlockedSpace2d &space, const std::vector< GHistRowT > &targeted_hists)
GHistRowT	GetInitializedHist (size_t tid, size_t nid)
void	ReduceHist (size_t nid, size_t begin, size_t end) const
void	MatchThreadsToNodes (const BlockedSpace2d &space)
void	AllocateAdditionalHistograms ()

Detailed Description

template<typename GradientSumT>
class xgboost::common::ParallelGHistBuilder< GradientSumT >

Stores temporary histograms to compute them in parallel Supports processing multiple tree-nodes for nested parallelism Able to reduce histograms across threads in efficient way.

Member Typedef Documentation

GHistRowT

template<typename GradientSumT >

using xgboost::common::ParallelGHistBuilder< GradientSumT >::GHistRowT = GHistRow<GradientSumT>

Member Function Documentation

AllocateAdditionalHistograms()

template<typename GradientSumT >

void xgboost::common::ParallelGHistBuilder< GradientSumT >::AllocateAdditionalHistograms ( )

inline

GetInitializedHist()

template<typename GradientSumT >

GHistRowT xgboost::common::ParallelGHistBuilder< GradientSumT >::GetInitializedHist ( size_t  tid, size_t  nid  )

inline

Init()

template<typename GradientSumT >

void xgboost::common::ParallelGHistBuilder< GradientSumT >::Init ( size_t  nbins )

inline

MatchThreadsToNodes()

template<typename GradientSumT >

void xgboost::common::ParallelGHistBuilder< GradientSumT >::MatchThreadsToNodes ( const BlockedSpace2d &  space )

inline

ReduceHist()

template<typename GradientSumT >

void xgboost::common::ParallelGHistBuilder< GradientSumT >::ReduceHist ( size_t  nid, size_t  begin, size_t  end  ) const

inline

Reset()

template<typename GradientSumT >

void xgboost::common::ParallelGHistBuilder< GradientSumT >::Reset ( size_t  nthreads, size_t  nodes, const BlockedSpace2d &  space, const std::vector< GHistRowT > &  targeted_hists  )

inline

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

• /home/runner/work/xgboost/xgboost/src/common/hist_util.h