Re: VMS backup: competition from Apple


david20@xxxxxxxxxxxxxxxx wrote:
In article <1155128452.672820.158060@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, bob@xxxxxxxxxxxxxxx writes:

david20@xxxxxxxxxxxxxxxx wrote:

What will a desktop PC do with 32 cores ?
What 32 things will it be running concurrently ?

thats the solution for the x86 boat anchor ... run cpus because the
cpu itself stinks ...

thats what sun and other vendors had to do to compete with a
single alpha chip ...


Sun's multi-core strategy and for that matter AMD and Intels had
absolutely nothing to do with competing with Alpha. Alpha was allready
dead when Sun bought the company who did the origional Niagara design.

Sun did multi-core because it saved power, reduced heat and because it
was much simpler to do than continuing to attempt to crank out faster
and faster single threaded or slightly threaded modules. You can bet
your bottom dollar that if Alpha was still being designed that the
Alpha roadmap would have included multi-core multi-threaded modules.


Come off it Bob. Alphas EV8 was heading down the same path of adding
performance by increasing the number of concurrent threads that
could be run - it's just it was using hyperthreading rather than
multiple cores.

when your chip stinks and you are out of ideas, run 80000 of them ...

ibms power 6 blows this crap away, and alpha could have been
there also except a bunch of suits who know nothing about
computer engineering has dumbed down the IT world ... pathetic!

Power has been dual core since at least Power 4.

I don't normally make predictions but my bet is that Power 6 and I
assume there will be a Power 6+ will be the last really large lets
clock this thing as fast as possible and execute a thread as fast as
possible design for servers. Yes Power 6 is multi-core and yes it is
multi-threaded but it is still using most of the transistor largess
available to it because of Moores Law to clock quicker and therefore
execute threads quicker.

Sun, AMD and Intel have all taken a different route and the sucess of
Sun's Niagara processor shows that the market is ready for very
agressively threaded and cored modules where the performance of an
individual thread is realively low.

The only market where this may not be the case is the desktop market
but then Power 6 and its follow ons are not designed for that anyway.

regards
Andrew Harrison

.

Relevant Pages

  • Re: VMS backup: competition from Apple
    ... What will a desktop PC do with 32 cores? ... thats the solution for the x86 boat anchor ... ... single alpha chip ... ... Power has been dual core since at least Power 4. ...
    (comp.os.vms)
  • Re: Question on scalability of multi-core Processors
    ... formula that indicated that power would limit the number of cores in a ... multi-core processor to *far* less than a Moore's law extrapolation ... one can build 1/2 the performance of the great big cores in ... memory wall, the power wall, and the synchronization wall. ...
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    ... I do understand the concern over added power draw, ... I re-enabled all cores but experienced a lockup while running zpool ... how much wire is used there, to the end of the eSATA cable. ... which drives are connected to which cables. ...
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