Accession Number : ADA113255

Title :   Decentralized Resource Management in Distributed Computer Systems.

Descriptive Note : Final technical rept. May-Oct 80,


Personal Author(s) : Applewhite,Hugh L ; Garg,Roli ; Jensen,E Douglas ; Northcutt,J Duane ; Sha,Lui

Full Text :

Report Date : Feb 1982

Pagination or Media Count : 94

Abstract : This is the first technical report from The Archons project, which is performing research in the science and engineering of 'distributed computers'. By this we mean a computer having highly decentralized (e.g., consensus) resource management at every level of abstraction from the executive down. This report provides a snapshot of several incomplete, ongoing investigations: decentralized synchronization; the requirements for simulation of decentralized resource management algorithms; and the facilities to be provided by a decentralized executive. We begin with a summary of our views on decentralized resource management and control, and the implications of physical communications on control (especially at the executive level). Then we briefly survey several other distributed system projects. This brings the Archons project into closer focus, as their orientations and objectives are considerably different from ours. Synchronization (the induction of a common, consistent ordering on events) is the essence of decentralized control. New concepts and techniques are required to achieve synchronization in distributed computers without reliance on any decentralized entity such as a semaphore, monitor, sequencer, or bus arbiter.

Descriptors :   *Distributed data processing , *Resource management , *Decentralization , Networks , Requirements , Computerized simulation , Algorithms , Control systems , Instrumentation , Access , Computer architecture , User needs , Comparison , Real time , Response , Throughput , Reliability , Synchronism

Subject Categories : Administration and Management
      Computer Hardware
      Computer Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE