Re: 360/44, The Seymour Cray Era of Supercomputers

From	John Levine <johnl@taugh.com>
Newsgroups	comp.arch
Subject	Re: 360/44, The Seymour Cray Era of Supercomputers
Date	2025-05-25 22:50 +0000
Organization	Taughannock Networks
Message-ID	<10106ra$23vj$1@gal.iecc.com> (permalink)
References	<100apst$hsll$1@dont-email.me> <20250521112125.000030e3@yahoo.com> <100ktr9$5rb$1@gal.iecc.com> <slrn10371m1.2e9bs.lars@cleo.beagle-ears.com>

Show all headers | View raw

According to Lars Poulsen  <lars@cleo.beagle-ears.com>:
>> IBM sort of came around to that with the 360/44, which implemented a scientific
>> subset of the 360's instruction set and ran nearly as fast as a /65. It was
>> intended for process control so they added priority interrupts and some real
>> time I/O.
>
>I think it was early 1970 that I visited Haldor Topsoe (chemical
>engineering co in Denmark) which had recently installed a 360/44. I was
>disappointed to learn that it was not program compatible with other 360
>machines, so it had to use a tailored OS; AFAIR a modified DOS system.
>And I think also it had a different floating point format.

44PS was DOS-ish, manuals at bitsavers if you care.  It was pretty simple,
compile and run Fortran and assembler programs with a simple disk structure.

It used the same floating point format as other 360s but had a knob on
the console you could turn to use fewer precision digits and run faster.

I would be surprised if anyone bought a /44 and didn't use it for realtime
or process control.




-- 
Regards,
John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. https://jl.ly

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