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Re: Philosophy of for loops [message #21503 is a reply to message #21486]

Tue, 29 August 2000 00:00

Nando Iavarone
Messages: 48
Registered: December 1998

Member

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Craig Markwardt wrote:
<blockquote TYPE=CITE>tclement@ucsd.edu (Todd Clements) writes:
 >
 > So what defines a slow loop? Is it having a bunch of accesses to
 > sub-elements of arrays? Is it just having a bunch of statments? I
suppose
 > I could do some tests of my own, and I have a little, but it's much
more
 > fun to hear what you all have to say on the subject. I wouldn't have
seen
 > any IDL-ku if I just kept my thoughts to myself!
A good question.  I think there are two parts to it, and you are
on
 the right track.  Theory comes first, then some practical solutions.
IDL is a scripted language, so almost by definition very little
 optimization can be done.  Sure, the IDL code is "compiled," but
what
 that really means is that the IDL statements are converted to some
 intermediate form, sometimes called bytecode.</blockquote>
A Research Systems Engineer told me that it is called "P code".
<pre>-- 
Nando Iavarone
Advanced Computer System - SPACE DIVISION
via Lazzaro Belli, 23
00040  Frascati - RM
Tel: +39-6-944091 (switchboard)
           9440968 (direct)
E-mail: 
    f.iavarone@acsys.it
    FrdndVrn@altavista.net</pre>
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[Message index]

		Re: Philosophy of for loops By: landsman on Tue, 29 August 2000 00:00
		Re: Philosophy of for loops By: davidf on Tue, 29 August 2000 00:00
		Re: Philosophy of for loops By: Nando Iavarone on Tue, 29 August 2000 00:00
		Re: Philosophy of for loops By: Martin Schultz on Tue, 29 August 2000 00:00
		Re: Philosophy of for loops By: marc schellens[1] on Mon, 28 August 2000 23:43
		Re: Philosophy of for loops By: John-David T. Smith on Mon, 28 August 2000 22:14
		Re: Philosophy of for loops By: Craig Markwardt on Mon, 28 August 2000 00:00

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