92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
/*!
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* Copyright 2017-2024 by Contributors
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* \file updater_quantile_hist.h
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*/
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#ifndef PLUGIN_SYCL_TREE_UPDATER_QUANTILE_HIST_H_
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#define PLUGIN_SYCL_TREE_UPDATER_QUANTILE_HIST_H_
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#include <dmlc/timer.h>
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#include <xgboost/tree_updater.h>
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#include <vector>
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#include "../data/gradient_index.h"
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#include "../common/hist_util.h"
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#include "../common/row_set.h"
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#include "../common/partition_builder.h"
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#include "split_evaluator.h"
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#include "../device_manager.h"
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#include "xgboost/data.h"
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#include "xgboost/json.h"
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#include "../../src/tree/constraints.h"
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#include "../../src/common/random.h"
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namespace xgboost {
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namespace sycl {
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namespace tree {
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// training parameters specific to this algorithm
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struct HistMakerTrainParam
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: public XGBoostParameter<HistMakerTrainParam> {
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bool single_precision_histogram = false;
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// declare parameters
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DMLC_DECLARE_PARAMETER(HistMakerTrainParam) {
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DMLC_DECLARE_FIELD(single_precision_histogram).set_default(false).describe(
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"Use single precision to build histograms.");
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}
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};
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/*! \brief construct a tree using quantized feature values with SYCL backend*/
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class QuantileHistMaker: public TreeUpdater {
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public:
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QuantileHistMaker(Context const* ctx, ObjInfo const * task) :
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TreeUpdater(ctx), task_{task} {
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updater_monitor_.Init("SYCLQuantileHistMaker");
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}
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void Configure(const Args& args) override;
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void Update(xgboost::tree::TrainParam const *param,
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linalg::Matrix<GradientPair>* gpair,
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DMatrix* dmat,
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xgboost::common::Span<HostDeviceVector<bst_node_t>> out_position,
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const std::vector<RegTree*>& trees) override;
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bool UpdatePredictionCache(const DMatrix* data,
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linalg::MatrixView<float> out_preds) override;
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void LoadConfig(Json const& in) override {
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auto const& config = get<Object const>(in);
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FromJson(config.at("train_param"), &this->param_);
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FromJson(config.at("sycl_hist_train_param"), &this->hist_maker_param_);
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}
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void SaveConfig(Json* p_out) const override {
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auto& out = *p_out;
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out["train_param"] = ToJson(param_);
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out["sycl_hist_train_param"] = ToJson(hist_maker_param_);
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}
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char const* Name() const override {
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return "grow_quantile_histmaker_sycl";
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}
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protected:
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HistMakerTrainParam hist_maker_param_;
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// training parameter
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xgboost::tree::TrainParam param_;
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xgboost::common::Monitor updater_monitor_;
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::sycl::queue qu_;
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DeviceManager device_manager;
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ObjInfo const *task_{nullptr};
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};
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} // namespace tree
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} // namespace sycl
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} // namespace xgboost
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#endif // PLUGIN_SYCL_TREE_UPDATER_QUANTILE_HIST_H_
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