
© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID
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HPC Inter-Process Communications
Networking
HPC cluster performance & efficiency is driven by IPC network
characteristics
More time spent communicating is less time spent processing
InfiniBand and Gigabit/10Gigabit Ethernet good IPC network
technologies
Gigabit Ethernet ideal for smaller clusters and for loosely coupled
applications
InfiniBand ideal for larger clusters and tightly coupled applications
Understanding Application requirements and target CPU
efficiencies are critical in technology selection for HPC
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