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Re: Number Cruncher
- Subject: Re: Number Cruncher
- From: GUDATH@EZINFO.VMSMAIL.ETHZ.CH (GUDAT,HENRIK MICHAEL)
- Date: 1995/08/09
- Distribution: world
- Newsgroups: comp.sys.apple2
- Organization: ETH ZUERICH
- References: <409be7$keh@manuel.anu.edu.au>
I remember only one test. Calculating a sine at mega-resolution took 15 seconds
on a zipped (8Mhz/16kb) GS and 5 seconds on a zipped, FPE-equipped system. This
is a pretty dramatic speed increase, considering that only a very small
fraction of the code deals with math (most resources are spent on GUI stuff).
(FPE=Number Cruncher)
In fact, Symbolix's routines accelerate math at a factor of 10 compared to SANE
patches. The program talks to the FPU directly.
Compared to systems without FPU, it will run about 20x faster or so.
(Annotation: the 10x figure originates from the FPU user's manual.)
- henrik