Dynamic Global Scheduling of Parallel Real-Time Tasks
Ref: HURRAY-TR-121005 Publication Date: 5 to 7, Dec, 2012
Dynamic Global Scheduling of Parallel Real-Time Tasks
Ref: HURRAY-TR-121005 Publication Date: 5 to 7, Dec, 2012Abstract:
High-level parallel languages offer a simple way for application programmers to specify parallelism in a form that easily scales with problem size, leaving the scheduling of the tasks onto processors to be performed at runtime. Therefore, if the underlying system cannot efficiently execute those applications on the available cores, the benefits will be lost.
In this paper, we consider how to schedule highly heterogenous parallel applications that require real-time performance guarantees on multicore processors. The paper proposes a novel scheduling approach that combines the global Earliest Deadline First (EDF) scheduler with a priority-aware work-stealing load balancing scheme, which enables parallel real-time tasks to be executed on more than one processor at a given time instant. Experimental results demonstrate the better scalability and lower scheduling overhead of the proposed approach comparatively to an existing real-time deadline-oriented scheduling class for the Linux kernel.
Luis Miguel Nogueira
José Fonseca
Cláudio Maia
Luis Miguel PinhoDocument:
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Download10th IEEE/IFIP International Conference on Embedded and Ubiquitous Computing (EUC 2012), pp 500-507.
Paphos, Cyprus.
DOI:10.1109/ICCSE.2012.75.
Record Date: 17, Oct, 2012