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De-duplicate GPU parameters. (#4454)

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* Only define `gpu_id` and `n_gpus` in `LearnerTrainParam`
* Pass LearnerTrainParam through XGBoost vid factory method.
* Disable all GPU usage when GPU related parameters are not specified (fixes XGBoost choosing GPU over aggressively).
* Test learner train param io.
* Fix gpu pickling.
This commit is contained in:
Jiaming Yuan
2019-05-29 11:55:57 +08:00
committed by GitHub
parent a3fedbeaa8
commit c589eff941
69 changed files with 927 additions and 562 deletions
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3
src/common/hist_util.h
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@@ -118,7 +118,8 @@ struct HistCutMatrix {
/*! \brief Builds the cut matrix on the GPU */
void DeviceSketch
(const SparsePage& batch, const MetaInfo& info,
const tree::TrainParam& param, HistCutMatrix* hmat, int gpu_batch_nrows);
const tree::TrainParam& param, HistCutMatrix* hmat, int gpu_batch_nrows,
GPUSet const& devices);
/*!
* \brief A single row in global histogram index.