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Single precision histograms on GPU (#3965)

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* Allow single precision histogram summation in gpu_hist

* Add python test, reduce run-time of gpu_hist tests

* Update documentation
This commit is contained in:
Rory Mitchell
2018-12-10 10:55:30 +13:00
committed by GitHub
parent 9af6b689d6
commit 93f9ce9ef9
10 changed files with 351 additions and 212 deletions
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src/common/hist_util.h
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@@ -72,7 +72,7 @@ struct HistCutMatrix {
/*! \brief Builds the cut matrix on the GPU */
void DeviceSketch
(const SparsePage& batch, const MetaInfo& info,
const tree::TrainParam& param, HistCutMatrix* hmat);
const tree::TrainParam& param, HistCutMatrix* hmat, int gpu_batch_nrows);
/*!
* \brief A single row in global histogram index.