Utilizing new communication features in compilation for private-memory machines

Abstract

The communication system of some 3rd generation private-memory machines provides long-lived connections (which reserve communication resources like buffers between nodes) as well as direct access by the computation unit(s) of the node to the communication system. These features allow a compiler to find innovative solutions when compiling data-parallel programs for a private-memory machine. In this paper, we discuss some optimizations that can be included in a compiler for the iWarp system, an example private-memory parallel system with a novel communication architecture.