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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Richard A. Linke
  • Vol. 6, Iss. 5 — May. 1, 2007
  • pp: 465–481

nD-RAPID: a multidimensional scalable fault-tolerant optoelectronic interconnection for high-performance computing systems

Chander Kochar, Avinash Kodi, and Ahmed Louri  »View Author Affiliations


Journal of Optical Networking, Vol. 6, Issue 5, pp. 465-481 (2007)
http://dx.doi.org/10.1364/JON.6.000465


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Abstract

Feature Issue on Photonics in Switching

The increasing demand for bandwidth coupled with saturating electrical systems is leading the drive for optics as an interconnect technology. High-performance computing systems (HPCS) consist of a large number of components such as processors, memories, and interconnection links. As the number of components in HPCS increases, the probability of a failure also increases. Therefore, it becomes imperative that the system be fault tolerant to ensure high availability even in the presence of faults. We propose a multidimensional optoelectronic architecture, nD-RAPID (reconfigurable and scalable all-photonic interconnect for distributed and parallel systems), where n can be 1, 2, or 3. nD-RAPID provides high bandwidth, low latency, dynamic reconfiguration, and fault tolerance. While designing the fault-tolerant routing algorithm, we have tried to ensure that it provides optimum performance in the absence of faults, shows minimal degradation in the presence of faults, and can tolerate a reasonable number of faults. In the presence of faults the on-board switching mechanism dynamically reconfigures itself to reroute packets along nonfaulty links. Extensive simulation results are presented that compare nD-RAPID with other popular HPCS topologies.

© 2007 Optical Society of America

OCIS Codes
(200.0200) Optics in computing : Optics in computing
(200.4650) Optics in computing : Optical interconnects

ToC Category:
Photonics in Switching

History
Original Manuscript: October 2, 2006
Revised Manuscript: December 20, 2006
Manuscript Accepted: February 28, 2007
Published: April 23, 2007

Virtual Issues
Photonics in Switching (2006) Journal of Optical Networking

Citation
Chander Kochar, Avinash Kodi, and Ahmed Louri, "nD-RAPID: a multidimensional scalable fault-tolerant optoelectronic interconnection for high-performance computing systems," J. Opt. Netw. 6, 465-481 (2007)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jon-6-5-465

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