Smart Core System for Dependable Many-Core Processor with Multifunction Routers

Author

Takamaeda, Shinya ; Sato, Shimpei ; Miyoshi, Takefumi ; Kise, Kenji

Author_Institution

Grad. Sch. of Inf. Sci. & Eng., Tokyo Inst. of Technol., Tokyo, Japan

fYear

2010

fDate

17-19 Nov. 2010

Firstpage

133

Lastpage

139

Abstract

Dependability of many-core processors is a very important topic. To improve the dependability, we propose the Smart Core system, which is a smart many-core system with redundant cores and multifunction routers. The multifunction router has three functions: copying packets, changing the destinations of packets, and rendezvousing and comparing two packets from different nodes. Using these additional functions, the Smart Core system realizes redundant execution on multiple cores and detects execution errors at the packet level. We implemented a many-core processor with the Smart Core system on a software simulator. The evaluation result shows that the performance overhead of packet rendezvous is small, up to 4.1%. In addition, we verified that a dependable many-core processor with the Smart Core system detects execution errors on a hardware prototyping system.

Keywords

microprocessor chips; multiprocessing systems; network routing; redundancy; SmartCore system; dependable many-core processor; execution error detection; hardware prototyping system; multifunction router; packet copying; redundant core; redundant execution; software simulator; Dependability; FPGA-prototyping; Many-core processor; Network on Chip;

fLanguage

English

Publisher

ieee

Conference_Titel

Networking and Computing (ICNC), 2010 First International Conference on

Conference_Location

Higashi-Hiroshima

Print_ISBN

978-1-4244-8918-3

Electronic_ISBN

978-0-7695-4277-5

Type

conf

DOI

10.1109/IC-NC.2010.53

Filename

5695224