Networking for large-scale science: Infrastructure, provisioning, transport and application mapping

Nageswara S. Rao, Steven M. Carter, Qishi Wu, William R. Wing, Mengxia Zhu, Anthony Mezzacappa, Malathi Veeraraghavan, John M. Blondin

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Large-scale science computations and experiments require unprecedented network capabilities in the form of large bandwidth and dynamically stable connections to support data transfers, interactive visualizations, and monitoring and steering operations. A number of component technologies dealing with the infrastructure, provisioning, transport and application mappings must be developed and/or optimized to achieve these capabilities. We present a brief account of the following technologies that contribute toward achieving these network capabilities: (a) DOE UltraScienceNet and NSF CHEETAH network testbeds that provide on-demand and scheduled dedicated network connections; (b) experimental results on transport protocols that achieve close to 100% utilization on dedicated 1Gbps wide-area channels; (c) a scheme for optimally mapping a visualization pipeline onto a network to minimize the end-to-end delays; and (d) interconnect configuration and protocols that provides multiple Gbps flows from Cray X1 to external hosts.

Original languageEnglish (US)
Pages (from-to)541-545
Number of pages5
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - Jan 1 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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