Rory Mitchell d6d1035950
gpu_hist performance fixes (#5558)
* Remove unnecessary cuda API calls

* Fix histogram memory growth
2020-04-19 12:21:13 +12:00
..
2020-04-18 06:53:51 +08:00
2020-04-18 06:53:51 +08:00
2019-12-11 11:20:40 +08:00