[Maxima] quad_qag slow due to compilation at each step?
Raymond Toy (RT/EUS)
raymond.toy at ericsson.com
Wed Mar 12 15:02:54 CDT 2008
Richard Fateman wrote:
> 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
It's probably still 20X slower, if not more.
> So if it turns out that compilation is really a large portion of the run
> there may be alternatives in other lisps. (SBCL is a descendant of CMU-CL).
Last time I heard, SBCL was at least as slow as CMUCL.
Clisp has a fast compiler, as does openmcl. GCL is even slower than
CMUCL (because it calls the C compiler) at least for small functions.
GCL might be faster than CMUCL for large functions.
More information about the Maxima