Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
| From | MitchAlsup <MitchAlsup@aol.com> |
|---|---|
| Newsgroups | comp.arch |
| Subject | Re: big-little |
| Date | 2011-10-28 11:15 -0700 |
| Organization | http://groups.google.com |
| Message-ID | <22374797.1522.1319825720498.JavaMail.geo-discussion-forums@yqp37> (permalink) |
| References | <j7pu4q$ndv$1@USTR-NEWS.TR.UNISYS.COM> <61189b3a-d0ac-44d1-9925-29f46c59aed9@v15g2000vbm.googlegroups.com> <489529f0-fde0-4aa9-b4c8-c543d1e71975@i19g2000yqf.googlegroups.com> <11644628.1655.1319749467802.JavaMail.geo-discussion-forums@yqhp35> <j8ckne$2kl$1@gosset.csi.cam.ac.uk> |
On Thursday, October 27, 2011 5:07:42 PM UTC-5, nm...@cam.ac.uk wrote: > In article <11644628.1655.1319749467802.JavaMail.geo-discussion-forums@yqhp35>, > MitchAlsup <comp...@googlegroups.com> wrote: > > > >Current x86 processors operate under "Causal Consistency". > > > >But when push comes to shove, it is NOT "that" expensive to take a > >Causally Consistent architecture and make it sequentially consistent > >(Where expensive is in terms of area, cycles, or time.) > > I am unconvinced that even the current Intel specification will > be viable once the number of cores gets to 64 or so. If you recall a post of mine about 5 years ago; I stated that there will not be a way to feed a 64-core/thread due to memory bandwidths (pin counts) constraints; even after sacrificing the fabric interconnect pins for more DRAM pins. > The main > guarantee that it gives that I find bizarre is IRIW (Independent > Reads of Independent Writes), but I know that I am thinking in > terms of distributed memory and message passing. However, as > core counts go up, shared memory is simply going to have to move > towards that approach. As long as snooping* reaches "every interested" Core making a Causualy Consistent memory system "appear" to be SC to every interested core is not that hard. Making it appear to be SC to an absolutely incoherent I/O system is where it gets difficult. (*) This provides for snoop based and directory based approaches to work. Mitch
Back to comp.arch | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
big-little timcaffrey@aol.com (Tim McCaffrey) - 2011-10-20 19:51 +0000
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-20 22:35 +0200
Re: big-little Mark Thorson <nospam@sonic.net> - 2011-10-20 14:18 -0800
Re: big-little nmm1@cam.ac.uk - 2011-10-21 07:54 +0100
Re: big-little David Kanter <dkanter@gmail.com> - 2011-11-09 01:06 -0800
Re: big-little nmm1@cam.ac.uk - 2011-11-09 11:07 +0000
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-21 09:25 +0200
Re: big-little EricP <ThatWouldBeTelling@thevillage.com> - 2011-10-21 11:07 -0400
Re: big-little timcaffrey@aol.com (Tim McCaffrey) - 2011-10-21 16:28 +0000
Re: big-little nmm1@cam.ac.uk - 2011-10-21 17:07 +0100
Re: big-little EricP <ThatWouldBeTelling@thevillage.com> - 2011-10-21 13:25 -0400
Re: big-little timcaffrey@aol.com (Tim McCaffrey) - 2011-10-21 19:45 +0000
Re: big-little EricP <ThatWouldBeTelling@thevillage.com> - 2011-10-22 14:44 -0400
Re: big-little ChrisQ <meru@devnull.com> - 2011-10-22 16:57 +0000
Re: big-little nmm1@cam.ac.uk - 2011-10-22 17:40 +0100
Re: big-little ChrisQ <meru@devnull.com> - 2011-10-23 14:39 +0000
Re: big-little nmm1@cam.ac.uk - 2011-10-23 16:11 +0100
Re: big-little ChrisQ <meru@devnull.com> - 2011-10-23 17:44 +0000
Re: big-little nmm1@cam.ac.uk - 2011-10-23 18:46 +0100
Re: big-little Thomas Womack <twomack@chiark.greenend.org.uk> - 2011-10-23 19:30 +0100
Re: big-little nmm1@cam.ac.uk - 2011-10-23 19:59 +0100
Re: big-little BGB <cr88192@hotmail.com> - 2011-10-23 13:21 -0700
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-23 20:38 +0200
Re: big-little nmm1@cam.ac.uk - 2011-10-23 22:38 +0100
Re: big-little BGB <cr88192@hotmail.com> - 2011-10-23 17:56 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-24 07:58 +0100
Re: big-little BGB <cr88192@hotmail.com> - 2011-10-24 16:34 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-25 08:09 +0100
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-25 14:52 +0200
Re: big-little nmm1@cam.ac.uk - 2011-10-25 17:28 +0100
Re: big-little BGB <cr88192@hotmail.com> - 2011-10-25 13:06 -0700
Re: big-little BGB <cr88192@hotmail.com> - 2011-10-25 15:22 -0700
Re: big-little "Andy \"Krazy\" Glew" <andy@SPAM.comp-arch.net> - 2011-10-25 19:47 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-26 08:09 +0100
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-26 12:06 +0200
Re: big-little nmm1@cam.ac.uk - 2011-10-26 10:47 +0100
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-26 11:58 +0200
Re: big-little nmm1@cam.ac.uk - 2011-10-26 10:44 +0100
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-26 03:45 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-26 11:45 +0100
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-26 09:15 -0700
Re: big-little "Andy \"Krazy\" Glew" <andy@SPAM.comp-arch.net> - 2011-10-26 12:51 -0700
Re: big-little Andrew Reilly <areilly---@bigpond.net.au> - 2011-10-26 11:45 +0000
Re: big-little nmm1@cam.ac.uk - 2011-10-26 15:42 +0100
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-26 09:07 -0700
Re: big-little "Andy \"Krazy\" Glew" <andy@SPAM.comp-arch.net> - 2011-10-26 12:53 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-26 21:05 +0100
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-26 13:20 -0700
Re: big-little "Andy \"Krazy\" Glew" <andy@SPAM.comp-arch.net> - 2011-10-26 17:55 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-27 09:10 +0100
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-27 01:34 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-27 10:29 +0100
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-27 04:28 -0700
Re: big-little EricP <ThatWouldBeTelling@thevillage.com> - 2011-10-27 12:22 -0400
Re: big-little timcaffrey@aol.com (Tim McCaffrey) - 2011-10-27 18:08 +0000
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-27 11:50 -0700
Re: big-little Jean-Marc Bourguet <jm@bourguet.org> - 2011-10-27 14:10 +0200
Re: big-little nmm1@cam.ac.uk - 2011-10-27 17:58 +0100
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-26 13:15 -0700
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-27 04:10 -0700
Re: big-little MitchAlsup <MitchAlsup@aol.com> - 2011-10-27 14:04 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-27 23:07 +0100
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-27 15:58 -0700
Re: big-little Rick Jones <rick.jones2@hp.com> - 2011-10-27 22:57 +0000
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-27 16:39 -0700
Re: big-little Rick Jones <rick.jones2@hp.com> - 2011-10-28 00:16 +0000
Re: big-little nmm1@cam.ac.uk - 2011-10-28 09:52 +0100
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-28 07:01 -0700
Re: big-little Rick Jones <rick.jones2@hp.com> - 2011-10-28 16:45 +0000
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-29 13:13 -0700
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-30 03:36 -0700
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-30 03:55 -0700
Re: big-little MitchAlsup <MitchAlsup@aol.com> - 2011-10-28 11:15 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-28 20:01 +0100
Re: big-little timcaffrey@aol.com (Tim McCaffrey) - 2011-10-29 17:46 +0000
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-29 11:30 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-29 20:02 +0100
Re: big-little MitchAlsup <MitchAlsup@aol.com> - 2011-10-29 13:09 -0700
Re: big-little "Paul A. Clayton" <paaronclayton@gmail.com> - 2011-10-29 17:42 -0700
Re: big-little nmm1@cam.ac.uk - 2011-10-30 08:16 +0000
Re: big-little MitchAlsup <MitchAlsup@aol.com> - 2011-11-04 10:06 -0700
Re: big-little "Paul A. Clayton" <paaronclayton@gmail.com> - 2011-11-04 15:19 -0700
Re: big-little nmm1@cam.ac.uk - 2011-11-05 09:13 +0000
Re: big-little "Andy \"Krazy\" Glew" <andy@SPAM.comp-arch.net> - 2011-11-05 09:03 -0700
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-26 13:38 -0700
Re: big-little Robert Wessel <robertwessel2@yahoo.com> - 2011-10-26 18:44 -0500
Re: big-little Michael S <already5chosen@yahoo.com> - 2011-10-26 17:05 -0700
Re: big-little Robert Wessel <robertwessel2@yahoo.com> - 2011-10-26 21:03 -0500
Re: big-little EricP <ThatWouldBeTelling@thevillage.com> - 2011-10-26 14:37 -0400
Re: big-little EricP <ThatWouldBeTelling@thevillage.com> - 2011-10-26 15:38 -0400
Re: big-little EricP <ThatWouldBeTelling@thevillage.com> - 2011-10-26 16:06 -0400
Re: big-little BGB <cr88192@hotmail.com> - 2011-10-27 00:15 -0700
Re: big-little Morten Reistad <first@last.name> - 2011-11-03 17:30 +0100
Re: big-little "Andy \"Krazy\" Glew" <andy@SPAM.comp-arch.net> - 2011-11-03 20:45 -0700
Re: big-little Thomas Womack <twomack@chiark.greenend.org.uk> - 2011-11-04 11:13 +0000
Re: big-little MitchAlsup <MitchAlsup@aol.com> - 2011-11-04 10:12 -0700
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-04 09:26 -0700
Re: big-little EricP <ThatWouldBeTelling@thevillage.com> - 2011-11-05 11:32 -0400
Re: big-little EricP <ThatWouldBeTelling@thevillage.com> - 2011-11-05 11:55 -0400
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-05 09:58 -0700
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-11-05 18:39 +0100
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-05 15:00 -0700
Re: big-little wclodius@lost-alamos.pet (William Clodius) - 2011-11-05 18:43 -0600
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-05 19:46 -0700
Re: big-little ChrisQ <meru@devnull.com> - 2011-11-11 12:31 +0000
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-11 12:39 -0700
Re: big-little Chris Gray <cg@GraySage.com> - 2011-11-11 13:28 -0700
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-11 18:03 -0700
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-11-12 18:25 +0100
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-12 12:02 -0700
cost of prolog/epilog (was: big-little) Kalle Olavi Niemitalo <kon@iki.fi> - 2011-11-12 22:57 +0200
Re: cost of prolog/epilog Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-11-12 22:47 +0100
Re: cost of prolog/epilog anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-11-14 09:45 +0000
Re: cost of prolog/epilog Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-11-14 12:28 +0100
Re: cost of prolog/epilog anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-11-15 16:48 +0000
Re: cost of prolog/epilog Stefan Monnier <monnier@iro.umontreal.ca> - 2011-11-15 21:35 -0500
Re: cost of prolog/epilog Bakul Shah <usenet@bitblocks.com> - 2011-11-16 02:41 -0800
Re: cost of prolog/epilog nmm1@cam.ac.uk - 2011-11-16 18:14 +0000
Re: cost of prolog/epilog BGB <cr88192@hotmail.com> - 2011-11-16 16:50 -0700
Re: cost of prolog/epilog BGB <cr88192@hotmail.com> - 2011-11-14 17:00 -0700
Re: cost of prolog/epilog torbenm@diku.dk (Torben Ægidius Mogensen) - 2011-11-15 10:26 +0100
Re: cost of prolog/epilog BGB <cr88192@hotmail.com> - 2011-11-15 09:41 -0700
Re: cost of prolog/epilog anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-11-15 16:40 +0000
Re: cost of prolog/epilog Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-11-15 12:44 +0100
Re: cost of prolog/epilog BGB <cr88192@hotmail.com> - 2011-11-15 09:01 -0700
Re: cost of prolog/epilog Chris Gray <cg@GraySage.com> - 2011-11-15 15:18 -0700
Re: cost of prolog/epilog BGB <cr88192@hotmail.com> - 2011-11-15 21:56 -0700
Re: cost of prolog/epilog Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-11-16 09:21 +0100
Re: cost of prolog/epilog anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-11-16 09:30 +0000
Re: cost of prolog/epilog John Levine <johnl@iecc.com> - 2011-11-16 10:05 +0000
Re: cost of prolog/epilog Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-11-16 11:08 +0100
Re: cost of prolog/epilog Chris Gray <cg@GraySage.com> - 2011-11-16 16:29 -0700
Re: cost of prolog/epilog BGB <cr88192@hotmail.com> - 2011-11-16 11:22 -0700
Re: cost of prolog/epilog anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2011-11-17 13:27 +0000
Re: cost of prolog/epilog BGB <cr88192@hotmail.com> - 2011-11-17 10:30 -0700
Re: cost of prolog/epilog torbenm@diku.dk (Torben Ægidius Mogensen) - 2011-11-17 11:21 +0100
Re: cost of prolog/epilog Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-11-17 11:56 +0100
Re: cost of prolog/epilog timcaffrey@aol.com (Tim McCaffrey) - 2011-11-17 20:27 +0000
Re: cost of prolog/epilog torbenm@diku.dk (Torben Ægidius Mogensen) - 2011-11-18 10:57 +0100
Re: cost of prolog/epilog BGB <cr88192@hotmail.com> - 2011-11-17 10:42 -0700
Re: cost of prolog/epilog (was: big-little) "Paul A. Clayton" <paaronclayton@gmail.com> - 2011-11-12 14:05 -0800
Re: cost of prolog/epilog (was: big-little) Bernd Paysan <bernd.paysan@gmx.de> - 2011-11-18 02:39 +0100
Re: cost of prolog/epilog torbenm@diku.dk (Torben Ægidius Mogensen) - 2011-11-18 10:59 +0100
Re: cost of prolog/epilog Bernd Paysan <bernd.paysan@gmx.de> - 2011-11-18 22:06 +0100
Re: cost of prolog/epilog (was: big-little) mac <acolvin@efunct.com> - 2011-11-20 23:01 +0000
Re: cost of prolog/epilog Chris Gray <cg@GraySage.com> - 2011-11-13 13:35 -0700
Re: big-little wclodius@lost-alamos.pet (William Clodius) - 2011-11-11 22:13 -0700
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-11 23:43 -0700
Re: big-little Chris Gray <cg@GraySage.com> - 2011-11-12 14:08 -0700
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-12 19:10 -0700
Re: big-little Chris Gray <cg@GraySage.com> - 2011-11-13 13:40 -0700
Re: big-little Bakul Shah <usenet@bitblocks.com> - 2011-11-13 14:49 -0800
Re: big-little BGB <cr88192@hotmail.com> - 2011-11-13 18:51 -0700
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-24 10:12 +0200
Re: big-little Stefan Monnier <monnier@iro.umontreal.ca> - 2011-10-24 12:11 -0400
Re: big-little "Paul A. Clayton" <paaronclayton@gmail.com> - 2011-10-24 10:28 -0700
Re: big-little nospam@ab-katrinedal.dk (Niels Jørgen Kruse) - 2011-10-24 19:38 +0200
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-24 21:02 +0200
Re: big-little "Paul A. Clayton" <paaronclayton@gmail.com> - 2011-10-23 12:02 -0700
Re: big-little Morten Reistad <first@last.name> - 2011-11-03 00:51 +0100
Re: big-little "Paul A. Clayton" <paaronclayton@gmail.com> - 2011-10-20 16:59 -0700
Re: big-little Anne & Lynn Wheeler <lynn@garlic.com> - 2011-10-20 21:13 -0400
Re: big-little nmm1@cam.ac.uk - 2011-10-21 08:01 +0100
Re: big-little "Paul A. Clayton" <paaronclayton@gmail.com> - 2011-10-21 05:39 -0700
Re: big-little torbenm@diku.dk (Torben Ægidius Mogensen) - 2011-10-24 10:18 +0200
Re: big-little Pedro Pereira <ppereira@grupopie.com> - 2011-10-21 10:40 +0100
Re: big-little Paul Gotch <paulg@at-cantab-dot.net> - 2011-10-21 12:42 +0100
Re: big-little nik Simpson <nik_s@knology.net> - 2011-10-21 11:00 -0500
Re: big-little Rick Jones <rick.jones2@hp.com> - 2011-10-20 21:13 +0000
Re: big-little timcaffrey@aol.com (Tim McCaffrey) - 2011-10-20 21:43 +0000
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-21 09:23 +0200
Re: big-little Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-10-21 14:35 +0200
Re: big-little Rick Jones <rick.jones2@hp.com> - 2011-10-21 17:15 +0000
Re: big-little BGB <cr88192@hotmail.com> - 2011-10-21 16:41 -0700
Re: big-little jacko <jackokring@gmail.com> - 2011-10-26 14:12 -0700
csiph-web