2 Commits

Author	SHA1	Message	Date
Rory Mitchell	5e582b0fa7	Combine thread launches into single launch per tree for gpu_hist (#4343) ... * Combine thread launches into single launch per tree for gpu_hist algorithm. * Address deprecation warning * Add manual column sampler constructor * Turn off omp dynamic to get a guaranteed number of threads * Enable openmp in cuda code	2019-04-29 09:58:34 +12:00
Andy Adinets	b833b642ec	Improved multi-node multi-GPU random forests. (#4238) ... * Improved multi-node multi-GPU random forests. - removed rabit::Broadcast() from each invocation of column sampling - instead, syncing the PRNG seed when a ColumnSampler() object is constructed - this makes non-trivial column sampling significantly faster in the distributed case - refactored distributed GPU tests - added distributed random forests tests	2019-03-13 12:36:28 +13:00