License: 
Creative Commons Attribution 4.0 International license (CC BY 4.0)
When quoting this document, please refer to the following
DOI: 10.4230/OASIcs.PARMA-DITAM.2023.5
URN: urn:nbn:de:0030-drops-177250
URL: http://dagstuhl.sunsite.rwth-aachen.de/volltexte/2023/17725/
Mettler, Marcel ;
Rapp, Martin ;
Khdr, Heba ;
Mueller-Gritschneder, Daniel ;
Henkel, Jörg ;
Schlichtmann, Ulf
MonTM: Monitoring-Based Thermal Management for Mixed-Criticality Systems
Abstract
With a rapidly growing functionality of embedded real-time applications, it becomes inevitable to integrate tasks of different safety integrity levels on one many-core processor leading to a large-scale mixed-criticality system. In this process, it is not sufficient to only isolate shared architectural resources, as different tasks executing on different cores also possibly interfere via the many-core processor’s thermal management. This can possibly lead to best-effort tasks causing deadline violations for safety-critical tasks. In order to prevent such a scenario, we propose a monitoring-based hardware extension that communicates imminent thermal violations between cores via a lightweight interconnect. Building on this infrastructure, we propose a thermal strategy such that best-effort tasks can be throttled in favor of safety-critical tasks. Furthermore, assigning static voltage/frequency (V/f) levels to each safety-critical task based on their worst-case execution time may result in unnecessary high V/f levels when the actual execution finishes faster. To free the otherwise wasted thermal resources, our solution monitors the progress of safety-critical tasks to detect slack and safely reduce their V/f levels. This increases the thermal headroom for best-effort tasks, boosting their performance. In our evaluation, we demonstrate our approach on an 80-core processor to show that it satisfies the thermal and deadline requirements, and simultaneously reduces the run-time of best-effort tasks by up to 45% compared to the state of the art.
BibTeX - Entry
@InProceedings{mettler_et_al:OASIcs.PARMA-DITAM.2023.5,
author = {Mettler, Marcel and Rapp, Martin and Khdr, Heba and Mueller-Gritschneder, Daniel and Henkel, J\"{o}rg and Schlichtmann, Ulf},
title = {{MonTM: Monitoring-Based Thermal Management for Mixed-Criticality Systems}},
booktitle = {14th Workshop on Parallel Programming and Run-Time Management Techniques for Many-Core Architectures and 12th Workshop on Design Tools and Architectures for Multicore Embedded Computing Platforms (PARMA-DITAM 2023)},
pages = {5:1--5:12},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-269-3},
ISSN = {2190-6807},
year = {2023},
volume = {107},
editor = {Bispo, Jo\~{a}o and Charles, Henri-Pierre and Cherubin, Stefano and Massari, Giuseppe},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/opus/volltexte/2023/17725},
URN = {urn:nbn:de:0030-drops-177250},
doi = {10.4230/OASIcs.PARMA-DITAM.2023.5},
annote = {Keywords: Dynamic thermal management, mixed-criticality, monitoring}
}
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Keywords: |
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Dynamic thermal management, mixed-criticality, monitoring |
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Collection: |
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14th Workshop on Parallel Programming and Run-Time Management Techniques for Many-Core Architectures and 12th Workshop on Design Tools and Architectures for Multicore Embedded Computing Platforms (PARMA-DITAM 2023) |
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Issue Date: |
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2023 |
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Date of publication: |
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13.03.2023 |
