Re: LW compiler optimizations
"Yuri Davidovsky (as work at disclosure dot ie)" <[email protected]>
| Newsgroups | gmane.lisp.lispworks.general |
|---|---|
| Message-ID | <[email protected]> |
> On 14 Jan 2025, at 23:37, David McClain (as dbm at refined-audiometrics dot com) <[email protected]> wrote: > > These timings hint that they may be using some low-grade SIMD instructions. But I am thoroughly ignorant of the capabilities of the M1 architecture. Do they even have low-grade SIMD like the Intel MMX engine? Quite similar to mmx actually, they use neon simd from the arm architecture, which is 128 bits wide. Rudimentary by modern standards in terms of bit width but can bring 2.5-3x increase in performance still. vDSP´s docs page states that it does use SIMD where possible. _______________________________________________ Lisp Hug - the mailing list for LispWorks users [email protected] http://www.lispworks.com/support/lisp-hug.html