Xah Lee's Unixism

Thu Sep 9 12:21:52 EDT 2004

In article <uwtz3trhy.fsf at mail.comcast.net>,
Anne & Lynn Wheeler  <lynn at garlic.com> wrote:
>Morten Reistad <firstname at lastname.pr1v.n0> writes:
>>
>> SMD filters were used at a quite high rate; even inside well
>> filtered rooms. ISTR 6 months was a pretty long interval between
>> PM's.
>
>360s, 370s, etc differentiated between smp ... which was either

smD  the TLA that represents a washing-machine size disk. Mountable. 
  ^  Made impressive head crashes from time to time.

But I won't interfere with this lovely thread drift with lots
of relevant facts. 

>symmetrical multiprocessing or shared memory (multi-)processing
>... and loosely-coupled multiprocessing (clusters).
>http://www.garlic.com/~lynn/subtopic.html#smp
>
>in the 70s, my wife did stint in POK responsible for loosely-coupled
>multiprocessing architecture and came up with peer-coupled shared
>data
>http://www.garlic.com/~lynn/subtopic.html#shareddata
>
>also in the 70s, i had done a re-org of the virtual memory
>infrastructure for vm/cms. part of it was released as something called
>discontiguous shared memory ... and other pieces of it was released
>as part of the resource manager having to do with page migration
>(moving virtual pages between different backing store devices).
>http://www.garlic.com/~lynn/subtopic.html#fairshare
>http://www.garlic.com/~lynn/subtopic.html#wsclock
>http://www.garlic.com/~lynn/subtopic.html#mmap
>http://www.garlic.com/~lynn/subtopic.html#adcon
>
>in the mid-70s, one of the vm/cms timesharing service bureaus
>http://www.garlic.com/~lynn/subtopic.html#timeshare
>
>was starting to offer 7x24 service to customers around the world; one
>of the issues was being able to still schedule PM .... when there
>was never a time that there wasn't anybody using the system. they
>had already providing support for loosely-coupled, similar to
>HONE
>http://www.garlic.com/~lynn/subtopic.html#hone
>
>for scallability & load balancing. what they did in the mid-70s was to
>expand the "page migration" ... to include all control blocks ...  so
>that processes could be migrated off one processor complex (in a
>loosely-coupled environment) to a different processor complex ...  so
>a processor complex could be taken offline for PM.
>
>in the late '80s, we started the high availability, cluster multiprocessing
>project:
>http://www.garlic.com/~lynn/subtopic.html#hacmp
>
>of course the airline res system had been doing similar things on 360s
>starting in the 60s.
>
>totally random references to airline res systems, tpf, acp, and/or pars:
>http://www.garlic.com/~lynn/96.html#29 Mainframes & Unix
>http://www.garlic.com/~lynn/99.html#17 Old Computers
>http://www.garlic.com/~lynn/99.html#100 Why won't the AS/400 die? Or, It's 1999 why do I have to learn how to use
>http://www.garlic.com/~lynn/99.html#103 IBM 9020 computers used by FAA (was Re: EPO stories (was: HELP IT'S HOT!!!!!))
>http://www.garlic.com/~lynn/99.html#136a checks (was S/390 on PowerPC?)
>http://www.garlic.com/~lynn/99.html#152 Uptime (was Re: Q: S/390 on PowerPC?)
>http://www.garlic.com/~lynn/2000b.html#20 How many Megaflops and when?
>http://www.garlic.com/~lynn/2000b.html#61 VM (not VMS or Virtual Machine, the IBM sort)
>http://www.garlic.com/~lynn/2000b.html#65 oddly portable machines
>http://www.garlic.com/~lynn/2000c.html#60 Disincentives for MVS & future of MVS systems programmers
>http://www.garlic.com/~lynn/2000e.html#21 Competitors to SABRE?  Big Iron
>http://www.garlic.com/~lynn/2000e.html#22 Is a VAX a mainframe?
>http://www.garlic.com/~lynn/2000f.html#20 Competitors to SABRE?
>http://www.garlic.com/~lynn/2001.html#26 Disk caching and file systems.  Disk history...people forget
>http://www.garlic.com/~lynn/2001b.html#37 John Mashey's greatest hits
>http://www.garlic.com/~lynn/2001d.html#69 Block oriented I/O over IP
>http://www.garlic.com/~lynn/2001e.html#2 Block oriented I/O over IP
>http://www.garlic.com/~lynn/2001g.html#35 Did AT&T offer Unix to Digital Equipment in the 70s?
>http://www.garlic.com/~lynn/2001g.html#45 Did AT&T offer Unix to Digital Equipment in the 70s?
>http://www.garlic.com/~lynn/2001g.html#46 The Alpha/IA64 Hybrid
>http://www.garlic.com/~lynn/2001g.html#47 The Alpha/IA64 Hybrid
>http://www.garlic.com/~lynn/2001g.html#49 Did AT&T offer Unix to Digital Equipment in the 70s?
>http://www.garlic.com/~lynn/2001j.html#17 I hate Compaq
>http://www.garlic.com/~lynn/2001n.html#0 TSS/360
>http://www.garlic.com/~lynn/2001n.html#3 News IBM loses supercomputer crown
>http://www.garlic.com/~lynn/2002c.html#9 IBM Doesn't Make Small MP's Anymore
>http://www.garlic.com/~lynn/2002g.html#2 Computers in Science Fiction
>http://www.garlic.com/~lynn/2002g.html#3 Why are Mainframe Computers really still in use at all?
>http://www.garlic.com/~lynn/2002h.html#12 Why did OSI fail compared with TCP-IP?
>http://www.garlic.com/~lynn/2002h.html#43 IBM doing anything for 50th Anniv?
>http://www.garlic.com/~lynn/2002i.html#63 Hercules and System/390 - do we need it?
>http://www.garlic.com/~lynn/2002i.html#83 HONE
>http://www.garlic.com/~lynn/2002j.html#83 Summary: Robots of Doom
>http://www.garlic.com/~lynn/2002m.html#67 Tweaking old computers?
>http://www.garlic.com/~lynn/2002n.html#29 why does wait state exist?
>http://www.garlic.com/~lynn/2002o.html#28 TPF
>http://www.garlic.com/~lynn/2002p.html#58 AMP  vs  SMP
>http://www.garlic.com/~lynn/2003.html#48 InfiniBand Group Sharply, Evenly Divided
>http://www.garlic.com/~lynn/2003c.html#30 diffence between itanium and alpha
>http://www.garlic.com/~lynn/2003d.html#67 unix
>http://www.garlic.com/~lynn/2003g.html#30 One Processor is bad?
>http://www.garlic.com/~lynn/2003g.html#32 One Processor is bad?
>http://www.garlic.com/~lynn/2003g.html#37 Lisp Machines
>http://www.garlic.com/~lynn/2003j.html#2 Fix the shuttle or fly it unmanned
>http://www.garlic.com/~lynn/2003k.html#3 Ping:  Anne & Lynn Wheeler
>http://www.garlic.com/~lynn/2003n.html#47 What makes a mainframe a mainframe?
>http://www.garlic.com/~lynn/2003p.html#45 Saturation Design Point
>http://www.garlic.com/~lynn/2004.html#24 40th anniversary of IBM System/360 on 7 Apr 2004
>http://www.garlic.com/~lynn/2004.html#49 Mainframe not a good architecture for interactive workloads
>http://www.garlic.com/~lynn/2004.html#50 Mainframe not a good architecture for interactive workloads
>http://www.garlic.com/~lynn/2004b.html#6 Mainframe not a good architecture for interactive workloads
>http://www.garlic.com/~lynn/2004b.html#7 Mainframe not a good architecture for interactive workloads
>http://www.garlic.com/~lynn/2004c.html#35 Computer-oriented license plates
>http://www.garlic.com/~lynn/2004e.html#44 Infiniband - practicalities for small clusters
>http://www.garlic.com/~lynn/2004f.html#58 Infiniband - practicalities for small clusters
>http://www.garlic.com/~lynn/2004g.html#14 Infiniband - practicalities for small clusters
>
>-- 
>Anne & Lynn Wheeler | http://www.garlic.com/~lynn/