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Limiting temperature gradients on many-cores by adaptive reallocation of real-time workloads

Becker, Matthias (author)
Mälardalens högskola,Inbyggda system
Sandström, K. (author)
ABB Corporate Research, Västerås, Sweden
Behnam, Moris (author)
Mälardalens högskola,Inbyggda system
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Nolte, Thomas (author)
Mälardalens högskola,Inbyggda system
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 (creator_code:org_t)
2014
2014
English.
In: 19th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2014. - 9781479948468 ; , s. Article number 7005241-
  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • The advent of many-core processors came with the increase in computational power needed for future applications. However new challenges arrived at the same time, especially for the real-time community. Each core on such a processor is a heat source and uneven usage can lead to hot spots on the processor, affecting its lifetime and reliability. For real-time systems, it is therefore of paramount importance to keep the temperature differences between the individual cores below critical values, in order to prevent premature failure of the system. We argue that this problem can not be solved by traditional approaches, since the growing number of cores makes them intractable. We rather argue to split the problem in the spacial domain and control the temperature on core level. The cores control their temperature by rearranging the load in a predictable manner during runtime. To achieve this, a feedback controller is implemented on each core. We conclude our work with a simulation based evaluation of the proposed approach comparing its performance against a previously presented algorithm. 

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
NATURVETENSKAP  -- Data- och informationsvetenskap (hsv//swe)
NATURAL SCIENCES  -- Computer and Information Sciences (hsv//eng)

Keyword

Factory automation
Interactive computer systems
Computational power
Feedback controller
Future applications
Many-core processors
Premature failures
Real-time community
Temperature differences
Traditional approaches
Real time systems

Publication and Content Type

ref (subject category)
kon (subject category)

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Becker, Matthias
Sandström, K.
Behnam, Moris
Nolte, Thomas
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ENGINEERING AND TECHNOLOGY
ENGINEERING AND ...
and Electrical Engin ...
NATURAL SCIENCES
NATURAL SCIENCES
and Computer and Inf ...
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19th IEEE Intern ...
By the university
Mälardalen University

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