The following message is a courtesy copy of an article
that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.


[EMAIL PROTECTED] (Shane) writes:
> Mmmmm - seems to be just a "warming over" of the multi-programming
> versus parallel discussion.
> With the exception of that last link, I'd need serious convincing any of
> them are "parallel programming".
>
> I suspect in the not too distant future, "multi-threaded" will supplant
> (in the common vernacular) all notions of "parallel".
>
> If not already ...

re:
http://www.garlic.com/~lynn/2007l.html#60 Is Parallel Programming Just Too Hard?

multi-threaded tends to be used in conjunction with tightly-coupled,
shared-memory multiprocessing (and the current buzzword
"multi-core"). lots of past posts mentioning shared-memory
multiprocessing and/or compare&swap instruction
http://www.garlic.com/~lynn/subtopic.html#smp

compare&swap instruction had been invented by Charlie (CAS are Charlie's
initials) at the science center ... working on fine-grain multiprocessor
locking for cp67
http://www.garlic.com/~lynn/subtopic.html#545tech

in order to get the instruction justified for 370, had to come up with
the description of its use in multi-threaded/multi-programming
operation, which was included (originally) in the (370) principles of
operation ... a more recent version
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/dz9zr003/A.6?DT=20040504121320

parallel has been used in reference to both (tightly-coupled)
multi-threaded operation, as well as loosely-coupled &/or cluster
multiprocessing operation

misc. past posts mentioning doing high availability, cluster
multiprocessing product
http://www.garlic.com/~lynn/subtopic.html#hacmp

some old email references about working on cluster scaleup
http://www.garlic.com/~lynn/lhwemail.html#medusa

a couple old posts specifically about working on applying distributed
lock manager and cluster scaleup to parallel oracle
http://www.garlic.com/~lynn/95.html#13
http://www.garlic.com/~lynn/96.html#15

recent post mentioning my wife had been con'ed into going to
POK to be in charge of loosely-coupled architecture
http://www.garlic.com/~lynn/2007l.html#62 Friday musings on the future of 3270 
applications

a lot of the "blades" stuff has been physical packaging originally done
for (numerical intensive cluster) "GRIDs" (getting more & more computing
into smaller and smaller footprint). some amount of GRID/blades are now
being pitched into commercial sector. some of it isn't strictly
loosely-coupled/cluster operation ... but it is also being used
(frequently in combination with virtualization) for server
consolidation.

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