xgboost

Author	SHA1	Message	Date
Rong Ou	cbf98cb9c6	Add Allgather to collective communicator (#8765 ) * Add Allgather to collective communicator	2023-02-09 11:31:22 +08:00
Rong Ou	a8255ea678	Add an in-memory collective communicator (#8494 )	2022-12-01 00:24:12 +08:00
Rong Ou	ad3bc0edee	Allow insecure gRPC connections for federated learning (#8181 ) * Allow insecure gRPC connections for federated learning * format	2022-08-19 12:16:14 +08:00
Rong Ou	14ef38b834	Initial support for federated learning (#7831 ) Federated learning plugin for xgboost: * A gRPC server to aggregate MPI-style requests (allgather, allreduce, broadcast) from federated workers. * A Rabit engine for the federated environment. * Integration test to simulate federated learning. Additional followups are needed to address GPU support, better security, and privacy, etc.	2022-05-05 21:49:22 +08:00