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

12-14 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; energy consumption; random-access storage; search engines; TCAM; energy consumption; fabrication; hierarchical power gating; massively parallel comparison; massively-parallel full-text-search engine; nonvolatile multi-functional CAM chip; ternary content-addressable memory; Central Processing Unit; Energy consumption; Hardware; Indexes; Nonvolatile memory; Search engines; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Circuits (VLSIC), 2013 Symposium on

Conference_Location

Kyoto

Print_ISBN

978-1-4673-5531-5

Type

conf

Filename

6578736