NDLI: Assigning Real-Time Tasks on Heterogeneous Multiprocessors with Two Types of Processors

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Assigning Real-Time Tasks on Heterogeneous Multiprocessors with Two Types of Processors

Content Provider	Semantic Scholar
Author	Andersson, Björn Bletsas, Konstantinos
Copyright Year	2009
Abstract	Consider the problem of scheduling a set of implicit deadline sporadic tasks on a heterogeneous multiprocessor so as to meet all deadlines. Tasks cannot migrate and the platform is restricted in that each processor is either of type-1 or type-2 (with each task characterized by a different speed of execution upon each type of processor). We present an algorithm for this problem with a time complexity of O(n*m), where n is the number of tasks and m is the number of processors. It offers the guarantee that if a task set can be scheduled by any non-migrative algorithm to meet deadlines then our algorithm meets deadlines as well if given processors twice as fast. Although this result is proven for only a restricted heterogeneous multiprocessor, we consider it significant for being the first realtime scheduling algorithm to use a lowcomplexity binpacking approach to schedule tasks on a heterogeneous multiprocessor with provably good performance. Assigning Real-Time Tasks on Heterogeneous Multiprocessors with Two Types of Processors Bjorn Andersson and Konstantinos Bletsas IPP-HURRAY Research Group, CISTER/ISEP, Polytechnic Institute of Porto Rua Dr. Antonio Bernardino de Almeida 431, 4200-072 Porto, Portugal bandersson@dei.isep.ipp.pt, ksbs@isep.ipp.pt
Starting Page	1
Ending Page	12
Page Count	12
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.cister.isep.ipp.pt/docs/assigning_real_time_tasks_on_heterogeneous_multiprocessors_with_two_types_of_processors/514/attach.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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