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- Newsgroups: comp.arch
- Path: sparky!uunet!munnari.oz.au!cs.mu.OZ.AU!munta.cs.mu.OZ.AU!zs
- From: zs@munta.cs.mu.OZ.AU (Zoltan Somogyi)
- Subject: Re: IBM's FIRST RISC System/6000(tm) based Shared Memory Parallel Processor
- Message-ID: <9235018.14855@mulga.cs.mu.OZ.AU>
- Sender: news@cs.mu.OZ.AU
- Organization: Computer Science, University of Melbourne, Australia
- References: <Bz0xLu.298v@austin.ibm.com> <1g86boINNh5m@fido.asd.sgi.com> <lifvl6INNan3@exodus.Eng.Sun.COM> <CLIFFC.92Dec11101344@dawn.rice.edu>
- Date: Tue, 15 Dec 1992 07:08:33 GMT
- Lines: 43
-
- chased@rbbb.Eng.Sun.COM (David Chase) writes:
- > We describe an efficient software cache consistency mechanism for shared
- > memory multiprocessors that supports multiple writers and works for
- > cache lines of any size. Our mechanism relies on the fact that, for a
- > correct program, only the global memory needs a consistent view of the
- > shared data between synchronization points. Our delayed consistency
- > mechanism allows arbitrary use of data blocks between synchronizations.
-
- cliffc@rice.edu (Cliff Click) writes:
- >This sounds like an paraphrase of Ervan Darnell's thesis proposal here
- >at Rice. IBM funds a lot of Rice research, so this might be where IBM
- >is coming from. Send replies to ervan@cs.rice.edu. Of course, I've
- >been wrong before (and I haven't checked with Ervan on this).
-
- This idea is quite old. It was the subject of a tech report six years ago:
-
- %A D. Abramson
- %A K. Ramamohanarao
- %A M. Ross
- %T A software controlled cache coherence policy,
- using selectively clearable cache memories
- %R Technical Report 86/18
- %I Department of Computer Science, University of Melbourne
- %C Melbourne, Australia
- %D 1986
-
- The paper was difficult to publish, as it seems to have been ahead of its time.
- It finally appeared as
-
- %A D. Abramson
- %A K. Ramamohanarao
- %A M. Ross
- %T A scalable cache coherence mechanism
- using a selectively clearable cache memory
- %J Australian Computer Journal
- %K acj
- %V 21
- %N 1
- %D February 1989
- %P 2-12
-
- Zoltan Somogyi <zs@cs.mu.OZ.AU>
- Department of Computer Science, University of Melbourne, AUSTRALIA
-