Satin: Efficient parallel divide-and-conquer in Java

Abstract

Satin is a system for running divide and conquer programs on distributed memory systems (and ultimately on wide-area metacomputing systems). Satin extends Java with three simple Cilk-like primitives for divide and conquer programming. The Satin compiler and runtime system cooperate to implement these primitives efficiently on a distributed system, using work stealing to distribute the jobs. Satin optimizes the overhead of local jobs using on-demand serialization, which avoids copying and serialization of parameters for jobs that are not stolen. This optimization is implemented using explicit invocation records. We have implemented Satin by extending the Manta compiler. We discuss the performance of ten applications on a Myrinet-based cluster.