Re: Automatic parallelization - was Re: LISP Object Oriented?

Tim Bradshaw <tfb+google@xxxxxxxx> wrote:
+---------------
| Paul Wallich <p...@xxxxxxxxx> wrote:
| > The big question is whether inefficient use of cores is a bad thing.
|
| It's a bad thing because it's making poor use of expensive silicon.
+---------------

And even poorer use of all that extra leakage current
[excess heat, a.k.a. wasted electricity]. As the cores get
smaller & smaller, the idle power becomes a larger and larger
fraction of the full-out running power. So fewer cores used
more efficiently means more computations/kW-hr than many
cores used less efficiently, even if the computations/hr
happens to be the same.


-Rob

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Rob Warnock <rpw3@xxxxxxxx>
627 26th Avenue <URL:http://rpw3.org/>
San Mateo, CA 94403 (650)572-2607

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