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A Fast Scalable Automaton-Matching Accelerator for Embedded ContentProcessors

Authors: KUO-KUN TSENG, YUAN-CHENG LAI, YING-DAR LIN and TSERN-HUEI LEE

Publisher/Conf. : ACM TECS 2009 8(3) Presenter: Fang-Chen Kuo

Date: 2009.4.29

Dept. of Computer Science and Information Engineering National Cheng Kung University, Taiwan R.O.C

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Outline Related Work

Bitmap-AC BFSM

Proposed Scheme Sequential Algorithm Prehash Matching Root-Index Matching Parallel Architecture

Performance Comparison

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Bitmap-AC [Tuck et al. 2004]

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BFSM [Dharmapurikar et al. 2004]

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FSAM (Fast Scalable Automaton Matching)

Based on Bitmap-AC [Tuck et al. 2004]

Hashing Based Scheme

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FSAM

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Sequential algorithm of FSAM

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Two Method

Prehash Matching For Non-Root State Goal: Reduced access to the structure of

AC Root-Index Matching

For Root State Goal: Skip Multiple Characters

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Prehash Matching

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Prehash Matching (Example)

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Root-Index Matching

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FSAM (Parallel Architecture)

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Double Engine FSAM

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Hardware (Implementation)

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Hardware (Comparison - I)

Performance Comparison