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- Path: sparky!uunet!charon.amdahl.com!pacbell.com!decwrl!hal.com!darkstar.UCSC.EDU!osr
- From: andy@comp.vuw.ac.nz (Andy Bond)
- Newsgroups: comp.os.research
- Subject: Re: Difference between DYNAMIC and ADAPTIVE load balancing???
- Date: 5 Nov 1992 23:47:38 GMT
- Organization: Distributed Systems Group, Comp Sci, Victoria University of Wellington
- Lines: 21
- Approved: comp-os-research@ftp.cse.ucsc.edu
- Message-ID: <1dcbqrINNol@darkstar.UCSC.EDU>
- References: <1d9guvINN6rp@darkstar.UCSC.EDU> <1dbi73INNm41@darkstar.UCSC.EDU>
- NNTP-Posting-Host: ftp.cse.ucsc.edu
- Originator: osr@ftp
-
- In article <1dbi73INNm41@darkstar.UCSC.EDU> xander@paramount.nikhefk.nikhef.nl (Xander Evers) writes:
- >
- >The terms dynamic scheduling and adaptive scheduling are sometimes used
- >in the literature in an inconsistent manner. A dynamic schedular takes
- >into account the current state of affairs as it perceives it in the system.
-
- Eager et al. (IEEE TOSE May 1986) refer to adaptive load sharing as
- reacting to changes in the system state while others have referred to
- the same type of load sharing as dynamic. I share the view of other
- responders to this article that adaptive algorithms are more than just
- dynamically adjusting to changes in system state. I view adaptive
- algorithms as adding an extra dimension to dynamic algorithms by
- modifying the allocation algorithm and not just the parameters to the
- algorithm. In my work an adaptive allocator constructs unique
- allocation algorithms for task clusters. As resource requirements of
- the task cluster change the algorithm adapts to the new cluster
- profile.
-
- andy
-
-
-