Re: OoO execution (was: The Seymour Cray Era of Supercomputers)

From	Michael S <already5chosen@yahoo.com>
Newsgroups	comp.arch
Subject	Re: OoO execution (was: The Seymour Cray Era of Supercomputers)
Date	2025-05-30 13:28 +0300
Organization	A noiseless patient Spider
Message-ID	<20250530132839.00000833@yahoo.com> (permalink)
References	(5 earlier) <100e352$1d61i$3@dont-email.me> <e5fc3f66c40e74c1cf09ba5ed5a53c14@www.novabbs.com> <2025May19.082242@mips.complang.tuwien.ac.at> <20250519234115.00005185@yahoo.com> <2025May20.232107@mips.complang.tuwien.ac.at>

Show all headers | View raw

On Tue, 20 May 2025 21:21:07 GMT
anton@mips.complang.tuwien.ac.at (Anton Ertl) wrote:

> Michael S <already5chosen@yahoo.com> writes:
> >On Mon, 19 May 2025 06:22:42 GMT
> >anton@mips.complang.tuwien.ac.at (Anton Ertl) wrote:  
> >> The Pentium Pro (introduced 1995-11-01), HP PA-8000 (introduced
> >> 1995-11-02), and MIPS R10000 (introduced 1996-01) are the first
> >> microprocessors which have full-blown OoO execution.
> >>   
> >
> >What about PPC604? It had more limited OoO resources than the 3
> >processors you mentioned above, esp. fewer numeber of reservation
> >stations, but it most certainly had reorder buffers, 16 of them.
> >So, by your own definitions, it should be called the first
> >single-chip full-blown CPU.  
> 
> Yes.  The OoO nature with ROB is explained in
> <https://arstechnica.com/articles/paedia/cpu/ppc-1.ars/6>.
> 
> Somehow that did not register with me earlier (even though a collegue
> had a Mac with a PPC 604e IIRC).  I guess it's because Apple Marketing
> is low on technical details, and if Motorola emphasized this aspect,
> that did not pass the filters of the press.  Also, IIRC the
> performance was not so exceptional that it would direct a spotlight at
> the underlying technology, whereas the Pentium Pro with its suprising
> SPECint win certainly did.  Finally, the successors of the 604 (in
> particular, the PPC 7450) did not progress much further with OoO
> execution 

From uArch perspective, PPC/MPC 7xx and 7xxx are really successors of
603 rather than of 604.

The thing closest to microarchitectural successor of 604 (via ill-fated
620) is POWER3, but that one was aimed at completely different market.
An offspring that attempted to re-enter PC processors market was PPC970
(a red-headed little brother of POWER4). This foray was terminated by
Steve Jobs (he always prefer Intel but until this millennium did not
poses political power to impose his preferences on technical team)
lasting for about 3 years.

> and still had only mild OoO capabilities at a time when the
> Pentium 4 already has a 128-entry ROB (and other structure sizes to
> match).  So given the lack of ambition in the 7450, I did not even
> think about the possibility that the 604 might have been the first
> microprocessor with OoO execution.
> 
> - anton

Thread

The Seymour Cray Era of Supercomputers Thomas Koenig <tkoenig@netcologne.de> - 2025-05-17 20:00 +0000
  Re: The Seymour Cray Era of Supercomputers mitchalsup@aol.com (MitchAlsup1) - 2025-05-17 21:27 +0000
    Re: The Seymour Cray Era of Supercomputers Thomas Koenig <tkoenig@netcologne.de> - 2025-05-18 05:46 +0000
      Re: The Seymour Cray Era of Supercomputers Michael S <already5chosen@yahoo.com> - 2025-05-18 18:23 +0300
        Re: The Seymour Cray Era of Supercomputers mitchalsup@aol.com (MitchAlsup1) - 2025-05-18 22:02 +0000
        Re: The Seymour Cray Era of Supercomputers quadibloc <quadibloc@gmail.com> - 2025-05-19 01:08 +0000
          Re: The Seymour Cray Era of Supercomputers Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-19 01:56 +0000
            Re: The Seymour Cray Era of Supercomputers quadibloc <quadibloc@gmail.com> - 2025-05-19 03:12 +0000
              OoO execution (was: The Seymour Cray Era of Supercomputers) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-05-19 06:22 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) John Levine <johnl@taugh.com> - 2025-05-19 17:10 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-05-19 17:46 +0000
                Re: OoO execution ze@zerandconsulting.com (Ze) - 2025-05-19 19:09 +0000
                Re: OoO execution Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-20 00:04 +0000
                Re: OoO execution mitchalsup@aol.com (MitchAlsup1) - 2025-05-20 00:30 +0000
                Re: OoO execution scott@slp53.sl.home (Scott Lurndal) - 2025-05-20 13:52 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) George Neuner <gneuner2@comcast.net> - 2025-05-21 12:52 -0400
                Re: OoO execution Stefan Monnier <monnier@iro.umontreal.ca> - 2025-05-21 13:14 -0400
                Re: OoO execution moi <findlaybill@blueyonder.co.uk> - 2025-05-21 18:47 +0100
                Re: OoO execution EricP <ThatWouldBeTelling@thevillage.com> - 2025-05-19 14:33 -0400
                Re: OoO execution quadibloc <quadibloc@gmail.com> - 2025-05-19 19:08 +0000
                Re: OoO execution Terje Mathisen <terje.mathisen@tmsw.no> - 2025-05-19 22:04 +0200
                Re: OoO execution Michael S <already5chosen@yahoo.com> - 2025-05-19 23:27 +0300
                Re: OoO execution John Savard <quadibloc@invalid.invalid> - 2025-07-16 14:27 +0000
                Re: OoO execution mitchalsup@aol.com (MitchAlsup1) - 2025-07-16 18:27 +0000
                Re: OoO execution Stefan Monnier <monnier@iro.umontreal.ca> - 2025-07-16 17:45 -0400
                Re: OoO execution Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-07-26 02:45 +0000
                Re: OoO execution John Savard <quadibloc@invalid.invalid> - 2025-07-31 20:38 +0000
                Re: OoO execution Michael S <already5chosen@yahoo.com> - 2025-08-01 15:02 +0300
                Re: OoO execution John Levine <johnl@taugh.com> - 2025-08-01 15:44 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) Michael S <already5chosen@yahoo.com> - 2025-05-19 23:41 +0300
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-20 00:01 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-05-20 21:21 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) Michael S <already5chosen@yahoo.com> - 2025-05-30 13:28 +0300
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) Al Kossow <aek@bitsavers.org> - 2025-05-30 10:51 -0700
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) scott@slp53.sl.home (Scott Lurndal) - 2025-05-30 19:36 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-05-31 07:57 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-30 22:05 +0000
                Re: OoO execution mitchalsup@aol.com (MitchAlsup1) - 2025-05-30 23:01 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-05-31 08:10 +0000
                Re: OoO execution (was: The Seymour Cray Era of Supercomputers) Thomas Koenig <tkoenig@netcologne.de> - 2025-05-29 19:02 +0000
                Re: OoO execution mitchalsup@aol.com (MitchAlsup1) - 2025-05-29 20:06 +0000
                Re: OoO execution Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-29 22:20 +0000
                Re: OoO execution David Schultz <david.schultz@earthlink.net> - 2025-05-29 18:36 -0500
              Re: The Seymour Cray Era of Supercomputers Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-19 07:50 +0000
            Re: The Seymour Cray Era of Supercomputers Michael S <already5chosen@yahoo.com> - 2025-05-19 16:55 +0300
              Re: The Seymour Cray Era of Supercomputers Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-19 23:58 +0000
                Re: The Seymour Cray Era of Supercomputers Michael S <already5chosen@yahoo.com> - 2025-05-20 13:45 +0300
                Re: The Seymour Cray Era of Supercomputers mitchalsup@aol.com (MitchAlsup1) - 2025-05-20 16:59 +0000
                Re: The Seymour Cray Era of Supercomputers John Levine <johnl@taugh.com> - 2025-05-20 19:59 +0000
                Re: The Seymour Cray Era of Supercomputers mitchalsup@aol.com (MitchAlsup1) - 2025-05-20 22:48 +0000
                Re: The Seymour Cray Era of Supercomputers Michael S <already5chosen@yahoo.com> - 2025-05-21 11:21 +0300
                Re: The Seymour Cray Era of Supercomputers Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-21 08:44 +0000
                Re: The Seymour Cray Era of Supercomputers John Levine <johnl@taugh.com> - 2025-05-21 16:09 +0000
                Re: The Seymour Cray Era of Supercomputers Michael S <already5chosen@yahoo.com> - 2025-05-21 20:11 +0300
                Re: The Seymour Cray Era of Supercomputers John Levine <johnl@taugh.com> - 2025-05-21 20:04 +0000
                Re: The Seymour Cray Era of Supercomputers Lars Poulsen <lars@cleo.beagle-ears.com> - 2025-05-25 21:08 +0000
                Re: 360/44, The Seymour Cray Era of Supercomputers John Levine <johnl@taugh.com> - 2025-05-25 22:50 +0000
    Re: The Seymour Cray Era of Supercomputers Michael S <already5chosen@yahoo.com> - 2025-05-18 11:33 +0300
      Re: The Seymour Cray Era of Supercomputers mitchalsup@aol.com (MitchAlsup1) - 2025-05-18 22:01 +0000
        Re: The Seymour Cray Era of Supercomputers Michael S <already5chosen@yahoo.com> - 2025-05-19 16:35 +0300
          Re: The Seymour Cray Era of Supercomputers Al Kossow <aek@bitsavers.org> - 2025-05-19 09:49 -0700
          Re: The Seymour Cray Era of Supercomputers mitchalsup@aol.com (MitchAlsup1) - 2025-05-19 18:14 +0000
            Re: The Seymour Cray Era of Supercomputers Michael S <already5chosen@yahoo.com> - 2025-05-19 23:11 +0300
              Re: The Seymour Cray Era of Supercomputers BGB <cr88192@gmail.com> - 2025-05-20 01:36 -0500
            Re: The Seymour Cray Era of Supercomputers Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-20 05:40 +0000
              Re: The Seymour Cray Era of Supercomputers mitchalsup@aol.com (MitchAlsup1) - 2025-05-20 16:58 +0000
                Re: The Seymour Cray Era of Supercomputers Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-05-21 00:28 +0000
            Re: The Seymour Cray Era of Supercomputers "Brian G. Lucas" <bagel99@gmail.com> - 2025-05-26 11:48 -0500
              Re: The Seymour Cray Era of Supercomputers mitchalsup@aol.com (MitchAlsup1) - 2025-05-26 18:01 +0000
                Re: The Seymour Cray Era of Supercomputers EricP <ThatWouldBeTelling@thevillage.com> - 2025-05-26 16:52 -0400
                Re: The Seymour Cray Era of Supercomputers Al Kossow <aek@bitsavers.org> - 2025-05-26 19:27 -0700

csiph-web