Distribution of Tasks Within a Centrally Scheduled Local Area Network

Björnfot, LarsMälardalens högskola,Akademin för innovation, design och teknik (author)

Distribution of a single Ada program on a local area network is accomplished by partitioning the run-time system into two parts. A central scheduling module is responsible for task management. Distributed run-time executives handle context switches and remote entry calls; however all activities are supervised by the scheduler. The scheduler can be implemented in hardware in order to achieve high efficiency. A network based on optical fibers is necessary due to the high speed required for system calls. Asynchronous Transfer Mode is suggested as the protocol for the communication. We describe an implementation of the divided run-time system on an Ethernet network, using MC68030-based micro computers as targets and an Ada program executing on a Rational host as the scheduler.

Lundqvist, KristinaUppsala University, Uppsala, Sweden(Swepub:mdh)klt01 (author)
Wall, GöranUppsala University, Uppsala, Sweden(Swepub:mdh)username (author)
Asplund, LarsUppsala University, Uppsala, Sweden(Swepub:mdh)lad01 (author)
Mälardalens högskolaAkademin för innovation, design och teknik (creator_code:org_t)

In:Proc. Ada-Europe'94, LNCS 887Berlin, Heidelberg : Springer Berlin Heidelberg, s. 421-432

By the author/editor: Björnfot, Lars; Lundqvist, Krist ...; Wall, Göran; Asplund, Lars

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...; and Computer Systems

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