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Exploring a Multithreaded Methodology to Implement a Network Communication Protocol on the Cyclops-64 Multithreaded Architecture

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4 Author(s)
Ge Gan ; Dept. of Electr. & Comput. Eng., Delaware Univ., Newark, DE ; Ziang Hu ; del Cuvillo, J. ; Gao, G.R.

The IBM Cyclops-64 (C64) chip employs a multithreaded architecture that integrates a large number of hardware thread units on a single chip. A cellular supercomputer is being developed based on a 3D-mesh connection of the C64 chips. This paper introduces the Cyclops datagram protocol (CDP) developed for the C64 supercomputer system. CDP is inspired by the TCP/IP protocol, yet simpler and more compact. The implementation of CDP leverages the abundant hardware thread-level parallelism provided by the C64 multithreaded architecture. The main contributions of this paper are: (1) We have completed a design and implementation of CDP that is used as the fundamental communication infrastructure for the C64 supercomputer system. (2) CDP successfully exploits the massive thread-level parallelism provided on the C64 hardware, achieving good performance scalability; (3) CDP is quite efficient. Its peak throughput reaches 884Mbps on the gigabit Ethernet, even it is running at the user-level on a single-processor Linux machine; (4) Extensive application test cases are passed and no reliability problems have been reported.

Published in:

Parallel and Distributed Processing Symposium, 2007. IPDPS 2007. IEEE International

Date of Conference:

26-30 March 2007