nvflare.app_opt.xgboost.histogram_based_v2.sender module

class Sender(engine, timeout)[source]

Bases: object

A Sender is used to send XGB requests from the client to the server and wait for reply. TBD: currently the sender simply sends the request with an aux message. It will be enhanced to be more reliable in dealing with unstable network.

Constructor

Parameters:

  • engine – the client engine that can send aux messages

  • timeout – the timeout for XGB requests

send_to_server(op: str, req: Shareable, abort_signal: Signal)[source]

Send an XGB request to the server.

Parameters:

  • op – the XGB operation code

  • req – the XGB request

  • abort_signal – used for checking whether the job is aborted.

Returns: reply from the server

Note: when this method is enhanced to be more reliable, we’ll keep resending until either the request is sent successfully or the job is aborted.