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The DeSyRe runtime support for fault-tolerant embedded MPSoCs

D.N. Pnevmatikatos ; Stavros Tzilis (Institutionen för data- och informationsteknik, Datorteknik (Chalmers)) ; Ioannis Sourdis (Institutionen för data- och informationsteknik, Datorteknik (Chalmers))
Proceedings - 2014 IEEE International Symposium on Parallel and Distributed Processing with Applications, ISPA 2014 p. 197-204. (2014)
[Konferensbidrag, refereegranskat]

Semiconductor technology scaling makes chips moresensitive to faults. This paper describes the DeSyRe designapproach and its runtime management for future reliable embedded Multiprocessor Systems-on-Chip (MPSoCs). A light weight runtime system is described for shared-memory MPSoCs to support fault-tolerant execution upon detection of transient and permanent faults. The DeSyRe runtime system offers re-execution of tasks that suffer from transient faults and task-migration in cases where a worker processor is permanently faulty. In addition, a faulty worker can potentially remainusable, increasing systems fault-tolerance. This is achieved using alternative task implementations, which avoid the faulty circuit and are indicated in the application-code via pragma annotations, as well as by repairing a faulty core via hardware reconfiguration. Thereby, the system can be dynamically adapted using one ormultiple of the above mechanisms to mitigate faults. The DeSyReruntime system is evaluated using micro-benchmarks running ona Virtex-6 FPGA MPSoC. Results suggest that our enhance dfault-tolerant runtime system can successfully and efficiently execute all application tasks under a variety of fault cases.

Nyckelord: embedded MPSoCs , FPGAs , runtime support

Article number 6924447

Denna post skapades 2014-12-04. Senast ändrad 2016-09-14.
CPL Pubid: 207424


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Institutioner (Chalmers)

Institutionen för data- och informationsteknik, Datorteknik (Chalmers)



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