An OpenSHMEM Implementation for the Adapteva Epiphany Coprocessor

TL;DR

This paper presents an implementation of the OpenSHMEM 1.3 specification tailored for the Adapteva Epiphany architecture, enabling PGAS programming models on a highly scalable many-core system.

Contribution

It introduces a novel OpenSHMEM implementation optimized for the Epiphany architecture, facilitating parallel programming on this unique hardware.

Findings

Achieved efficient parallel performance on Epiphany cores

Demonstrated scalability with increasing core counts

Validated the implementation with benchmark results

Abstract

This paper reports the implementation and performance evaluation of the OpenSHMEM 1.3 specification for the Adapteva Epiphany architecture within the Parallella single-board computer. The Epiphany architecture exhibits massive many-core scalability with a physically compact 2D array of RISC CPU cores and a fast network-on-chip (NoC). While fully capable of MPMD execution, the physical topology and memory-mapped capabilities of the core and network translate well to Partitioned Global Address Space (PGAS) programming models and SPMD execution with SHMEM.