Subject: quad_qag slow due to compilation at each step?
From: Richard Fateman
Date: Wed, 12 Mar 2008 12:56:14 -0700
OK, that makes it more complicated, but still possible to disable.
The last time I did a comparison, CMU-CL's compiler was something like 20X
slower than
Allegro CL's compiler. That was on a Sun workstation, probably 10 years
ago.
So if it turns out that compilation is really a large portion of the run
time,
there may be alternatives in other lisps. (SBCL is a descendant of CMU-CL).
RJF
> -----Original Message-----
> From: maxima-bounces at math.utexas.edu
> [mailto:maxima-bounces at math.utexas.edu] On Behalf Of Raymond
> Toy (RT/EUS)
> Sent: Wednesday, March 12, 2008 12:48 PM
> To: fateman at EECS.Berkeley.EDU
> Cc: 'Maxima Mailing List'; 'dlakelan'
> Subject: Re: [Maxima] quad_qag slow due to compilation at each step?
>
> Richard Fateman wrote:
> > If you think that compile() is taking too long, how about
> timing it again,
> > but do this..
> >
> > compile(f):="do nothing";
>
> That won't do anything. get-integrand calls Lisp's COMPILE function,
> not Maxima's.
>
> Ray
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