Re: How faster can this be done?

Dr Jon D Harrop of Flying F*** Consultancy finally hauls out this well-
worn saw:

The fact is, Lisp is slow and it puts people off.

If I had a nickel for every time I heard this...
I think this counts as a lisp-specific instance of Godwin's law.

Anyone remember `Ahmed the Peaceman'?

Apparently you don't read what I post. In a conversation you
participated in on comp.lang.lisp just a bit over a year ago I wrote:

Allow me to point you at the Supercomputer Toolkit:
http://repository.readscheme.org/ftp/papers/berlinsurati-pepm94.pdf

``The Supercomputer Toolkit compiler performs partial evaluation
of data-independent programs expressed in the Scheme
dialect of Lisp by using the symbolic execution technique described
in previously published work by Berlin.''


Jacob Katzemelson at Technion has apparently used the Supercomputer
Toolkit to run weather prediction models:


``Conservative estimates performed for a typical mesoscale forecast
over the eastern Mediterranean (for 36 hour) suggest that were the
Toolkit constructed from ALPHA processors, 10 processors would do the
prediction in only about 13 minutes. A 36 hours simulation with full
physics for the whole earth will require 2 hours for 80 ALPHA
processors.''

If Lisp is slow, why then are MIT researchers using it for computation-
intensive programs?

What sort of crappy education are they giving at Robinson College
these days? It only takes a few seconds on Google to find enough
papers on high-performance computing in Lisp to make a decent text
book! If I were you I'd ask Robinson for my money back. It seems
they left you as ignorant as when you entered and certainly didn't
train you to change that sad situation.

Next time you feel like uttering a sentence with the word `fact' in it
(or `most people' or `vast majority', etc.) just type it into that
little rectangular box at the top of your browser and *find out* if
there is any truth to it *before* you go spouting off.

.

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