xgboost

History

* Fix Histogram allocation.

nidx_map is cleared after `Reset`, but histogram data size isn't changed hence
histogram recycling is used in later iterations.  After a reset(building new
tree), newly allocated node will start from 0, while recycling always choose
the node with smallest index, which happens to be our newly allocated node 0.

2019-04-10 19:21:26 +08:00

benchmark

Update python benchmarking script (#4164 )

2019-02-21 15:16:09 +13:00

ci_build

[CI] Optimize external Docker build cache (#4334 )

2019-04-04 15:59:07 -07:00

cpp

Fix Histogram allocation. (#4347 )

2019-04-10 19:21:26 +08:00

distributed

Improved multi-node multi-GPU random forests. (#4238 )