Betriebssysteme · Institut für Systemarchitektur · Fakultät Informatik · TU Dresden



12. 02. 2016

Multi-Processor Look-Ahead Scheduling


Hannes Weisbach

TU Dresden

Verteidigung der Master-Arbeit

This talk presents ATLAS-MP, a combination of runtime and kernel scheduler, to process arbitrary collection of real-time jobs. ATLAS-MP inherits the accessible API and execution time prediction from the ATLAS infrastructure and extends it with primitives to express intra-task parallelism. The scheduler is able to take full advantage of SMP systems and balances load automatically over all available processors.
I compare benchmark results with the theoretical utilization bounds of ATLAS-MP and discuss current limitations as well as possible strategies to refine the design of ATLAS-MP.

12. 02. 2016

S-RAPL - Hardware Based Energy Accounting for Multicore Systems


Till Smejkal

TU Dresden

Zwischenpräsentation der Diplomarbeit, Sondertermin: 12:30 Uhr, APB E001

Intel's Running Average Power Limit (RAPL) processor feature provides the possibility to gather energy statistics about the processor. Various researchers have already shown that these statistics can be used to calculate the energy consumption of individual programs. However, their approaches are limited to restricted systems which do not support processor sharing or which can just utilize one processor. So far, nobody used RAPL for energy measurements in a shared multicore system. In this talk, I will present an approach which tries to achieve exactly this task. I will explain which obstacles need to be overcome to solve the problem and present some first measurement results of my implementation.
18. Apr 2018
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