'21 processing speeds
- To: MISC
- Subject: '21 processing speeds
- From: mwalker@xxxxxxxxxxxxxxxxxxxx
- Date: Tue, 18 Apr 95 13:43:18 MDT
- Posted-Date: Tue, 18 Apr 95 13:43:18 MDT
Jeff Fox writes:
>Dear MISC readers:
>No, P21Forth will not run this benchmark in 2 seconds even with high
>speed sram and no video output. P21Forth would have to be rewritten
>to take advantage of the high speed sram, and with this mod only and
>no video output it could run about three times faster. ie. 10 seconds.
>[Helpful (and appreciated) discussion and benchmarks abridged...]
>P.S.
>As for Mark's "there is no such thing as fast enough"
>My real interest is in F21. With a 3 time faster processor clock,
Actually, I had decided to sit tight for the F21's debut, but got
(re)excited by recent postings... didn't mean to introduce any negative
vibes into the MISC forum, and if I did, I apologize.
>bigger high speed sram interface, and deeper stacks it is very easy
>to implement optiminzing native code compilers that will generate
>much fast code. A minimum of an order of magnitude of speed improvement
>over P21 will be available. With a good optimizing compiler a
>couple of orders of magnitude can be achieved in many cases. Since
>F21 is designed for multiprocessing, it will possible to get another
>order of magnitude or two in speedup on many problems. 3D projections
>are a good example of where there is a lot of natural parallelism as
>you compute many frames in sequence (normally).
>So what would you say to four order of magnitude speedup over P21?
See my sig! 8^)
>We are about to submit the first F21 prototype. I will soon be posting
>the details of the design.
Good luck, and thanks!
--
Mark Walker UNM/EECE, 7-3688, mwalker@eece.unm.edu
"Enough is enough; and too much is just right!"