4 Commits

Author SHA1 Message Date
Jiaming Yuan
d9a47794a5 Fix CPU hist init for sparse dataset. (#4625)
* Fix CPU hist init for sparse dataset.

* Implement sparse histogram cut.
* Allow empty features.

* Fix windows build, don't use sparse in distributed environment.

* Comments.

* Smaller threshold.

* Fix windows omp.

* Fix msvc lambda capture.

* Fix MSVC macro.

* Fix MSVC initialization list.

* Fix MSVC initialization list x2.

* Preserve categorical feature behavior.

* Rename matrix to sparse cuts.
* Reuse UseGroup.
* Check for categorical data when adding cut.

Co-Authored-By: Philip Hyunsu Cho <chohyu01@cs.washington.edu>

* Sanity check.

* Fix comments.

* Fix comment.
2019-07-04 16:27:03 -07:00
Rory Mitchell
13e7a2cff0 Various bug fixes (#2825)
* Fatal error if GPU algorithm selected without GPU support compiled

* Resolve type conversion warnings

* Fix gpu unit test failure

* Fix compressed iterator edge case

* Fix python unit test failures due to flake8 update on pip
2017-10-25 14:45:01 +13:00
PSEUDOTENSOR / Jonathan McKinney
ca7fc9fda3 [GPU-Plugin] Fix gpu_hist to allow matrices with more than just 2^{32} elements. Also fixed CPU hist algorithm. (#2518) 2017-07-18 11:19:27 +12:00
Rory Mitchell
530f01e21c [GPU-Plugin] Add load balancing search to gpu_hist. Add compressed iterator. (#2504) 2017-07-11 22:36:39 +12:00