NDLI: Fine-grained hardware/software methodology for process migration in MPSoCs

Content Provider	IEEE Xplore Digital Library
Author	Tuo Li Ambrose, J.A. Parameswaran, S.
Copyright Year	2012
Description	Author affiliation: School of Computer Science and Engineering, University of New South Wales, Australia (Tuo Li; Ambrose, J.A.; Parameswaran, S.)
Abstract	Process migration (PM) is a method used in Multi-Processor System on Chips (MPSoCs) to improve reliability, reduce thermal hotspots and balance loads. However, existing PM approaches are limited by coarse granularity (i.e. can only switch at application or operating systems boundaries), and thus respond slowly. Such slow response does not allow for fine control over temperature, nor does it allow frequent migration which is necessary in certain systems. In this paper, we propose Thor, an approach which is a fine-grained reliable PM scheme, for Embedded MPSoCs, to overcome the limitations of existing PM approaches. Our approach leverages custom instructions to integrate a base processor architecture, with PM functionality. We have proposed three schemes, Thor-BM (migration at basic block boundaries), Thor-BM/CR (migration at basic block boundaries with checkpoint and recovery), and ThorIM/CR (migration at instruction level with checkpoint and recovery). Our experiments show that the execution time overhead is less than 2%, while the additional area cost and power consumption costs are approximately 50% (excluding main memories, which if taken into account would substantially decrease this overhead). The average migration time cost is 289 cycles.
Starting Page	508
Ending Page	515
File Size	1581531
Page Count	8
File Format	PDF
ISBN	9781450315739
ISSN	10923152
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Association for Computing Machinery, Inc. (ACM)
Subject Keyword	Registers Reliability Computer architecture Ground penetrating radar Indexes Integrated circuits Educational institutions
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Computer Science Applications Software

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