Presentation 2011-12-16
Fault-tolerant Wormhole Switching with Partial Backtrack Capability
Hiroki KANAI, Masato KITAKAMI,
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Abstract(in English) Since a parallel computer and Network-on-Chip (NoC) have many elements, their failure rate is high. Fault-tolerance is important for such systems, which sometimes have partial failure, to avoid system-down. Wormhole Switching is widely used switching and is weak to failure; and therefore, many fault-tolerant routing algorithm for Wormhole Switching have been proposed. Some conventional routing algorithm achieve low throughput because they have severe restriction to determine available nodes. This paper proposed fault-tolerant Wormhole Switching which has back-tracking capability and is suitable for flexible routing algorithm. Back-tracking is enabled by a copy of header flit, which investigates the network in advance. That is, back-tracking to the node where the copy header flit was generated is possible. Computer simulation says that for the network with 30 to 40% failure links, the throughput of the proposed method is higher than that of the conventional method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) parallel computer / Network-on-Chip / switching / Wormhole / fault-tolerance
Paper # DC2011-75
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Committee DC
Conference Date 2011/12/9(1days)
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Paper Information
Registration To Dependable Computing (DC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fault-tolerant Wormhole Switching with Partial Backtrack Capability
Sub Title (in English)
Keyword(1) parallel computer
Keyword(2) Network-on-Chip
Keyword(3) switching
Keyword(4) Wormhole
Keyword(5) fault-tolerance
1st Author's Name Hiroki KANAI
1st Author's Affiliation Graduate School of Advanced Integration Science, Chiba University()
2nd Author's Name Masato KITAKAMI
2nd Author's Affiliation Graduate School of Advanced Integration Science, Chiba University
Date 2011-12-16
Paper # DC2011-75
Volume (vol) vol.111
Number (no) 362
Page pp.pp.-
#Pages 6
Date of Issue