I got poly_int to be about the same speed (compiled) as integrate now without having to resort to Lisp coding. There seems to be no
point to including it in pw.mac since the idea was to get a screaming fast pwdefint() function. I will add it anyway so if anyone
has the time to look at it and suggest changes I will be happy with that.
Rich
----- Original Message -----
From: "Richard Hennessy" <rich.hennessy at verizon.net>
Cc: "Maxima List" <maxima at math.utexas.edu>
Sent: Friday, September 04, 2009 6:27 PM
Subject: Re: [Maxima] How to speed up programs by compiling
Well, I guess I am on my own with this. I will try to write my own version of this function directly in Lisp bypassing the
compiler.
Rich
----- Original Message -----
From: "Richard Hennessy" <rich.hennessy at verizon.net>
To: "Barton Willis" <willisb at unk.edu>
Cc: "Maxima List" <maxima at math.utexas.edu>; <maxima-bounces at math.utexas.edu>
Sent: Friday, September 04, 2009 2:24 PM
Subject: Re: [Maxima] How to speed up programs by compiling
I have noticed that in the lisp code there are a lot of calls to simplify, maybe some of them are unnecessary? Also mode_declare
does help by improving speed to about 2/3 of the original execution time, but integrate was about 6 times faster. The exponents are
numbers usually so I declared them as number. Other variables are possibly symbols so I said mode_declare([x1,x2,...], any).
----- Original Message -----
From: "Barton Willis" <willisb at unk.edu>
To: "Richard Hennessy" <rich.hennessy at verizon.net>
Cc: "Maxima List" <maxima at math.utexas.edu>; <maxima-bounces at math.utexas.edu>
Sent: Friday, September 04, 2009 1:01 PM
Subject: Re: [Maxima] How to speed up programs by compiling
Try searching the mailing list archives using something like "compile
speed up"; for example
http://www.math.utexas.edu/pipermail/maxima/2006/003524.html
An easy way to search the Maxima mailing list is from
http://maxima.sourceforge.net/maximalist.html
Barton
maxima-bounces at math.utexas.edu wrote on 09/04/2009 11:14:25 AM:
> [image removed]
>
> [Maxima] How to speed up programs by compiling
>
> Richard Hennessy
>
> to:
>
> Maxima List
>
> 09/04/2009 11:14 AM
>
> Sent by:
>
> maxima-bounces at math.utexas.edu
>
> How can you make a program run faster by compiling? I have tried to
> compile functions in pw.mac and it does not improve speed even
> though I thought it should. For example I wrote a simple polynomial
> integrator program which I was going to put into pw.mac because
> I thought an integrate program that can only do polynomials would be
> faster than one that has to consider all possibilities but when
> I test it it is still slower the Maximas' integrate. I tried
> compiling it and got no improvement. What am I doing wrong?
>
> Rich
>
>
>
> _______________________________________________
> Maxima mailing list
> Maxima at math.utexas.edu
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