Symbiotic jobscheduling for a simultaneous mutlithreading processor
ACM SIGPLAN Notices
Temperature-aware microarchitecture
Proceedings of the 30th annual international symposium on Computer architecture
Reducing power density through activity migration
Proceedings of the 2003 international symposium on Low power electronics and design
Runtime Power Monitoring in High-End Processors: Methodology and Empirical Data
Proceedings of the 36th annual IEEE/ACM International Symposium on Microarchitecture
Compact thermal modeling for temperature-aware design
Proceedings of the 41st annual Design Automation Conference
Heat-and-run: leveraging SMT and CMP to manage power density through the operating system
ASPLOS XI Proceedings of the 11th international conference on Architectural support for programming languages and operating systems
Using Performance Counters for Runtime Temperature Sensing in High-Performance Processors
IPDPS '05 Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 11 - Volume 12
Techniques for Multicore Thermal Management: Classification and New Exploration
Proceedings of the 33rd annual international symposium on Computer Architecture
Balancing power consumption in multiprocessor systems
Proceedings of the 1st ACM SIGOPS/EuroSys European Conference on Computer Systems 2006
Thermal-aware task scheduling at the system software level
ISLPED '07 Proceedings of the 2007 international symposium on Low power electronics and design
Resource-conscious scheduling for energy efficiency on multicore processors
Proceedings of the 5th European conference on Computer systems
Memory-aware scheduling for energy efficiency on multicore processors
HotPower'08 Proceedings of the 2008 conference on Power aware computing and systems
A light-weight approach for online state classification of self-organizing parallel systems
ARCS'11 Proceedings of the 24th international conference on Architecture of computing systems
Hardware-assisted dynamic power and thermal management in multi-core SoCs
Proceedings of the 21st edition of the great lakes symposium on Great lakes symposium on VLSI
Recent thermal management techniques for microprocessors
ACM Computing Surveys (CSUR)
A survey and taxonomy of on-chip monitoring of multicore systems-on-chip
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Analyzing resource interdependencies in multi-core architectures to improve scheduling decisions
Proceedings of the 28th Annual ACM Symposium on Applied Computing
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Non-uniform utilization of functional units in combination with hardware mechanisms such as clock gating leads to different power consumptions in different parts of a processor chip. This in turn leads to non-uniform temperature distributions and problematic local hotspots, depending on the characteristics of the currently running task. The operating system's scheduler, responsible for deciding which task to run at what time, can influence temperature distribution. Our work investigates what the operating system can do to alleviate the problem of hotspots. We propose task activity vectors describing which functional units a task uses to what degree. With the knowledge provided by these vectors, the scheduler can schedule tasks using different units successively, distribute tasks using a particular unit excessively over the system's processors, or mix tasks using different units on a SMT processor. We implemented several vector-based scheduling strategies for Linux. Our evaluations show that vector-based scheduling considerably reduces hotspots.