Subject: Re: Automatic parallelization - was Re: LISP Object Oriented?
From: (Rob Warnock)
Date: Wed, 31 Jan 2007 10:13:26 -0600
Newsgroups: comp.lang.lisp
Message-ID: <>
Tim Bradshaw <> wrote:
| Paul Wallich <> 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 Warnock			<>
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