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
..
2019-08-19 16:51:40 +12:00
2019-12-05 22:15:34 +08:00
2020-04-05 04:42:29 +08:00