6 Commits

Author SHA1 Message Date
Jiaming Yuan
c589eff941
De-duplicate GPU parameters. (#4454)
* 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.
2019-05-29 11:55:57 +08:00
Jiaming Yuan
7b9043cf71
Fix clang-tidy warnings. (#4149)
* Upgrade gtest for clang-tidy.
* Use CMake to install GTest instead of mv.
* Don't enforce clang-tidy to return 0 due to errors in thrust.
* Add a small test for tidy itself.

* Reformat.
2019-03-13 02:25:51 +08:00
Rory Mitchell
1fc37e4749 Require leaf statistics when expanding tree (#4015)
* Cache left and right gradient sums

* Require leaf statistics when expanding tree
2019-01-17 21:12:20 -08:00
Rory Mitchell
f75a21af25
Reduce tree expand boilerplate code (#4008) 2018-12-20 15:52:28 +13:00
Rory Mitchell
84c99f86f4
Combine TreeModel and RegTree (#3995) 2018-12-19 12:16:40 +13:00
Jiaming Yuan
19ee0a3579
Refactor fast-hist, add tests for some updaters. (#3836)
Add unittest for prune.

Add unittest for refresh.

Refactor fast_hist.

* Remove fast_hist_param.
* Rename to quantile_hist.

Add unittests for QuantileHist.

* Refactor QuantileHist into .h and .cc file.
* Remove sync.h.
* Remove MGPU_mock test.

Rename fast hist method to quantile hist.
2018-11-07 21:15:07 +13:00