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

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

doi:10.1109/ic-nc.2010.53

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…For low performance overhead if the application requires low reliability, design concept of DVR is not to optimize system for fault-tolerant but to avoid modification to existing highly- Works on-demand dynamically idle redundancy coupling exploiting DVR(this paper) yes yes yes Relax [5] yes no no DCC [9],Joseph [15], no yes no smart-core [16] warped-DMR [19] no no yes optimized micro-architectures. It employs selectively redundancy scope for the different reliability requirements among vary applications.…”

Section: Background and Related Workmentioning

confidence: 99%

“…Joseph [15] dynamically constructs NMR groups though adding vote table in router. SmartCore [16] is a many-core system with redundant cores and multifunction routers including three functions: copying packets, changing the destinations of packets, and rendezvousing and comparing two packets from different nodes. Using these additional functions, the SmartCore system realizes redundant execution on multiple cores and detects execution errors at the packet level.…”

Section: Background and Related Workmentioning

confidence: 99%

See 1 more Smart Citation

Device View Redundancy: An Adaptive Low-Overhead Fault Tolerance Mechanism for Many-Core System

Jia

Zhang

2013

2013 IEEE 10th International Conference on High Performance Computing and Communications &Amp; 2013 IEEE International Conferen

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Continued increasing of fault rate in integrate circuit makes processors more susceptible to errors, especially many-core processor. Meanwhile, most systems or applications do not need full fault coverage, which has excessive overhead. So on-demand fault tolerance is desired for these applications. In this paper, we propose an adaptive low-overhead fault tolerance mechanism for many-core system, called Device View Redundancy (DVR). It treats fault tolerance as a device that can be configured and used by application when high reliability is needed. Nevertheless, DVR exploits the idle resources for lowoverhead fault tolerance, which is based on the observation that the utilization of many-core system is low due to lack of parallelism in application. Finally, the experiment shows that the performance overhead of DVR is reduced by 16%to 98% compared with full Dual Modular Redundancy (DMR).

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