NDLI: The Supercomputer Supernet testbed: a WDM-based supercomputer interconnect

Content Provider	IEEE Xplore Digital Library
Author	Kleinrock, L. Gerla, M. Bambos, N. Gong, J. Gafni, E. Bergman, L. Bannister, J. Monacos, S.P. Bujewski, T. I-In, P. Kannan, B. Kwan, B. Leonardi, E. Peck, J. Palnati, P.
Copyright Year	1983
Abstract	Current fiber optic networks effectively provide local connectivity among end user computing devices, and can serve as backbone fabric between LAN subnets across campus and metropolitan areas. However, combining both stream service (in which ATM excels) and low latency datagram service (in which cluster networks like Myrinet and POLO excel) has been difficult to realize. This paper describes a new wavelength division multiplexed (WDM) fiber optic network that supports both stream and datagram service and extends reach and functionality of low-latency, high bandwidth workstation clusters to a campus and MAN setting. The novel concept is based on combining the rich interconnect structure of WDM fiber optics with the low-latency mesh of crossbar switches recently developed for workstation groups. This system, called the Supercomputer Supernet (SSN) achieves a high level of performance by replacing the point-to-point copper wire links with a parallel channel (WDM) fiber optic interconnect system. The novel scheme interconnects asynchronous wormhole routing switches used in parallel supercomputers via multi-channel WDM fiber optic links embedded in to an optical star (or tree) "physical" topology, WDM will be used to subdivide the very large fiber bandwidth into several channels, each of Gb/s bandwidth, WDM channels (supporting also time division multiplexing) will be established between modules, thus defining a dense "virtual" interconnection topology, which is dynamically reconfigurable and responds to changing traffic patterns. A pool of channels will be set aside for direct, end-to-end connections between crossbars, providing circuit-switched service for real-time traffic applications.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1388
Ending Page	1399
Page Count	12
File Size	1641425
File Format	PDF
ISSN	07338724
Volume Number	14
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Supercomputers Testing Wavelength division multiplexing Integrated circuit interconnections Bandwidth Optical fibers Optical fiber networks Workstations Optical switches Computer networks
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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