Fabrication of a 99%-energy-less nonvolatile multi-functional CAM chip using hierarchical power gating for a massively-parallel full-text-search engine

Author

Matsunaga, Shinichiro ; Sakimura, Noboru ; Nebashi, Ryusuke ; Tsuji, Yukihide ; Morioka, Ayuka ; Sugibayashi, Tadahiko ; Miura, Shun ; Honjo, Hiroaki ; Kinoshita, Keizo ; Sato, Hikaru ; Fukami, Shunsuke ; Natsui, Masanori ; Mochizuki, Akira ; Ikeda, Shoji

Author_Institution

Center for Spintronics Integrated Syst., Tohoku Univ., Sendai, Japan

fYear

2013

fDate

11-13 June 2013

Abstract

A ternary content-addressable memory (TCAM)-based hardware called nonvolatile “multi-functional CAM (MF-CAM)” is proposed for an ultra-low-energy “full-text search” system in recent data centers. The proposed nonvolatile MF-CAM-based full-text search engine can perform parallel comparison while eliminating leakage energy by hierarchical power gating. By the massively parallel comparison with the hierarchical power gating, energy consumption of the proposed search engine is reduced within 1% in comparison with the conventional CPU-based full-text search system, where repetitive comparisons between the CPU and a memory consume much energy.

Keywords

content-addressable storage; search engines; TCAM-based hardware; conventional CPU-based full-text search system; data centers; energy consumption; energyless nonvolatile multifunctional CAM chip; hierarchical power gating; leakage energy elimination; massively-parallel full-text-search engine; nonvolatile MF-CAM-based full-text search engine; parallel comparison; ternary content-addressable memory; ultra-low-energy full-text search system; Central Processing Unit; Energy consumption; Hardware; Indexes; Nonvolatile memory; Search engines; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Technology (VLSIT), 2013 Symposium on

Conference_Location

Kyoto

ISSN

0743-1562

Print_ISBN

978-1-4673-5226-0

Type

conf

Filename

6576611