xgboost
|
Utility for fast histogram aggregation. More...
#include <xgboost/data.h>
#include <xgboost/generic_parameters.h>
#include <limits>
#include <vector>
#include <algorithm>
#include <memory>
#include <utility>
#include <map>
#include "row_set.h"
#include "threading_utils.h"
#include "../tree/param.h"
#include "./quantile.h"
#include "./timer.h"
#include "../include/rabit/rabit.h"
Go to the source code of this file.
Classes | |
class | xgboost::common::HistogramCuts |
class | xgboost::common::CutsBuilder |
class | xgboost::common::SparseCuts |
Cut configuration for sparse dataset. More... | |
class | xgboost::common::DenseCuts |
Cut configuration for dense dataset. More... | |
struct | xgboost::common::Index |
struct | xgboost::common::GHistIndexMatrix |
preprocessed global index matrix, in CSR format More... | |
struct | xgboost::common::GHistIndexBlock |
class | xgboost::common::GHistIndexBlockMatrix |
class | xgboost::common::HistCollection |
histogram of gradient statistics for multiple nodes More... | |
class | xgboost::common::ParallelGHistBuilder |
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... | |
class | xgboost::common::GHistBuilder |
builder for histograms of gradient statistics More... | |
Namespaces | |
xgboost | |
namespace of xgboost | |
xgboost::common | |
Typedefs | |
using | xgboost::common::GHistIndexRow = Span< uint32_t const > |
A single row in global histogram index. Directly represent the global index in the histogram entry. More... | |
using | xgboost::common::GHistRow = Span< tree::GradStats > |
histogram of gradient statistics for a single node. Consists of multiple GradStats, each entry showing total gradient statistics for that particular bin Uses global bin id so as to represent all features simultaneously More... | |
Enumerations | |
enum | xgboost::common::BinTypeSize { xgboost::common::kUint8BinsTypeSize = 1, xgboost::common::kUint16BinsTypeSize = 2, xgboost::common::kUint32BinsTypeSize = 4 } |
Functions | |
HistogramCuts | xgboost::common::DeviceSketch (int device, DMatrix *dmat, int max_bins, size_t sketch_batch_num_elements=0) |
template<typename AdapterT > | |
HistogramCuts | xgboost::common::AdapterDeviceSketch (AdapterT *adapter, int num_bins, float missing, size_t sketch_batch_num_elements=0) |
void | xgboost::common::InitilizeHistByZeroes (GHistRow hist, size_t begin, size_t end) |
fill a histogram by zeros More... | |
void | xgboost::common::IncrementHist (GHistRow dst, const GHistRow add, size_t begin, size_t end) |
Increment hist as dst += add in range [begin, end) More... | |
void | xgboost::common::CopyHist (GHistRow dst, const GHistRow src, size_t begin, size_t end) |
Copy hist from src to dst in range [begin, end) More... | |
void | xgboost::common::SubtractionHist (GHistRow dst, const GHistRow src1, const GHistRow src2, size_t begin, size_t end) |
Compute Subtraction: dst = src1 - src2 in range [begin, end) More... | |
Utility for fast histogram aggregation.
Copyright 2017-2020 by Contributors