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Title: Optimized scalable network switch

Abstract

In a massively parallel computing system having a plurality of nodes configured in m multi-dimensions, each node including a computing device, a method for routing packets towards their destination nodes is provided which includes generating at least one of a 2m plurality of compact bit vectors containing information derived from downstream nodes. A multilevel arbitration process in which downstream information stored in the compact vectors, such as link status information and fullness of downstream buffers, is used to determine a preferred direction and virtual channel for packet transmission. Preferred direction ranges are encoded and virtual channels are selected by examining the plurality of compact bit vectors. This dynamic routing method eliminates the necessity of routing tables, thus enhancing scalability of the switch.

Inventors:
 [1];  [2];  [3];  [4];  [5];  [6];  [4];  [4];  [7]
  1. Ridgefield, CT
  2. Croton On Hudson, NY
  3. Yorktown Heights, NY
  4. Mount Kisco, NY
  5. Irvington, NY
  6. Cortlandt Manor, NY
  7. Bedford Hills, NY
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
920651
Patent Number(s):
7,305,487
Application Number:
10/469,001
Assignee:
International Business Machines Corporation (Armonk, NY) OAK
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Blumrich, Matthias A, Chen, Dong, Coteus, Paul W, Gara, Alan G, Giampapa, Mark E, Heidelberger, Philip, Steinmacher-Burow, Burkhard D, Takken, Todd E, and Vranas, Pavlos M. Optimized scalable network switch. United States: N. p., 2007. Web.
Blumrich, Matthias A, Chen, Dong, Coteus, Paul W, Gara, Alan G, Giampapa, Mark E, Heidelberger, Philip, Steinmacher-Burow, Burkhard D, Takken, Todd E, & Vranas, Pavlos M. Optimized scalable network switch. United States.
Blumrich, Matthias A, Chen, Dong, Coteus, Paul W, Gara, Alan G, Giampapa, Mark E, Heidelberger, Philip, Steinmacher-Burow, Burkhard D, Takken, Todd E, and Vranas, Pavlos M. Tue . "Optimized scalable network switch". United States. https://www.osti.gov/servlets/purl/920651.
@article{osti_920651,
title = {Optimized scalable network switch},
author = {Blumrich, Matthias A and Chen, Dong and Coteus, Paul W and Gara, Alan G and Giampapa, Mark E and Heidelberger, Philip and Steinmacher-Burow, Burkhard D and Takken, Todd E and Vranas, Pavlos M},
abstractNote = {In a massively parallel computing system having a plurality of nodes configured in m multi-dimensions, each node including a computing device, a method for routing packets towards their destination nodes is provided which includes generating at least one of a 2m plurality of compact bit vectors containing information derived from downstream nodes. A multilevel arbitration process in which downstream information stored in the compact vectors, such as link status information and fullness of downstream buffers, is used to determine a preferred direction and virtual channel for packet transmission. Preferred direction ranges are encoded and virtual channels are selected by examining the plurality of compact bit vectors. This dynamic routing method eliminates the necessity of routing tables, thus enhancing scalability of the switch.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {12}
}

Patent:

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