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Quasi-static scheduling of CAL actor networks for reconfigurable video coding

Research output: Contribution to journalArticleScientificpeer-review

Details

Original languageEnglish
Pages (from-to)191-202
Number of pages12
JournalJournal of Signal Processing Systems
Volume63
Issue number2
DOIs
Publication statusPublished - May 2011
Publication typeA1 Journal article-refereed

Abstract

The upcoming Reconfigurable Video Coding (RVC) standard from MPEG (ISO / IEC SC29WG11) defines a library of coding tools to specify existing or new compressed video formats and decoders. The coding tool library has been written in a dataflow/actor-oriented language named CAL. Each coding tool (actor) can be represented with an extended finite state machine and the data communication between the tools are described as dataflow graphs. This paper proposes an approach to model the CAL actor network with Parameterized Synchronous Data Flow and to derive a quasi-static multiprocessor execution schedule for the system. In addition to proposing a scheduling approach for RVC, an extension to the well-known permutation flow shop scheduling problem that enables rapid run-time scheduling of RVC tasks, is introduced.

Keywords

  • Digital signal processors, Modeling, Parallel processing, Scheduling