Analyzing MPI performance over 10-Gigabit ethernet |
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| Affiliation: | 1. Dept. of Computer Engineering, Sharif University of Technology and IPM School of Computer Science, Tehran, Iran;2. Dept. of Computer Science, University of Glasgow, Glasgow G12 8RZ, United Kingdom;3. School of Information Technologies, Sydney NSW 2006, University of Sydney, Australia;1. University of Waterloo, Canada;2. Google Inc., United States;3. University of British Columbia, Canada;4. NetApp Inc., Canada;1. Lecturer, Ocean College, Zhejiang University, Hangzhou, China;2. Prof., State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, China, and Prof., Institute for Infrastructure and Environment, Heriot-Watt University;3. Prof., Institute for Infrastructure and Environment, Heriot-Watt University, UK, and Visiting Professor, State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, China;4. Director and Senior Engineer, Yangtze Waterway Planning, Design and Research Institute, Wuhan, China |
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| Abstract: | Recent work with 10-Gigabit (10 GbE) network adapters has demonstrated good performance in TCP/IP-based local- and wide-area networks (LANs and WANs). In the present work we present an evaluation of host-based 10 GbE adapters in a system-area network (SAN) in support of a cluster. This evaluation focuses on the performance of the message-passing interface (MPI) when running over a 10 GbE interconnect. We find that MPI over 10 GbE provides communications performance comparable to that of TCP alone and fairly competitive with more exotic technologies such as MPI over Quadrics. The optimization of MPI and MPI-based applications to make use of this performance, however, is a non-trivial task. Consequently, it is difficult for MPI-based applications to realize this performance when running current-generation 10 GbE hardware. |
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