[CAY-1208] Introduce combiner in Pregel

snuspl / cruise

Cruise: A Distributed Machine Learning Framework with Automatic System Configuration

Apache License 2.0

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Closed wynot12 closed 6 years ago

wynot12 commented 6 years ago

Resolves #1208

This PR introduces Combiner that combines messages for the same vertex. It greatly reduces network traffic.

yunseong commented 6 years ago

LGTM. I've added minor changes. Will merge now. Thanks!