Conference paper

KOŠAŘ Vlastimil and KOŘENEK Jan. Towards Efficient Field Programmeable Pattern Matching Array. In: Proceedings of the 18th Euromicro Conference on Digital Systems Design. Funchal: IEEE Computer Society, 2015, pp. 1-8. ISBN 978-1-4673-8035-5.
Publication language:english
Original title:Towards Efficient Field Programmable Pattern Matching Array
Proceedings:Proceedings of the 18th Euromicro Conference on Digital Systems Design
Conference:18th Euromicro Conference on Digital Systems Design
Place:Funchal, PT
Publisher:IEEE Computer Society
regular expressions, pattern matching, NFA
The automata processor, new architecture for pattern matching was introduced recently.
We recognize it as pioneer of new class of field programmable circuits and name
it as Field Programmable Pattern Matching Array. In this paper, we investigate
enhancement of the architecture. We propose usage of fixed deterministic unit
from the NFA-Split architecture as new hard block. Construction process from
set of regular expressions via dual position automaton to final partition on
deterministic and nondeterministic parts is described. Moreover, we investigate
efficiency of deterministic units based on dual position automation. Since
the deterministic unit can implement finite automaton without structural
restrictions we investigated usage of unrestricted finite automaton for DU and
dual position automaton for parts mapped to basic FPPMA elements. According to
the results the proposed DU based on unrestricted finite automaton utilizes up
to 42.43% less State-transition elements than the deterministic unit based
on dual position automaton. According to the results utilization of the
deterministic units provides significant reduction of FPPMA resources for
particular sets of REs. For example, State-transition elements were reduced by
more than 71% for the spyware-put Snort module.
   author = {Vlastimil Ko{\v{s}}a{\v{r}} and Jan Ko{\v{r}}enek},
   title = {Towards Efficient Field Programmable Pattern Matching Array},
   pages = {1--8},
   booktitle = {Proceedings of the 18th Euromicro Conference on Digital
	Systems Design},
   year = {2015},
   location = {Funchal, PT},
   publisher = {IEEE Computer Society},
   ISBN = {978-1-4673-8035-5},
   language = {english},
   url = {}

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