Date: Wed, 22 Dec 1999 15:35:03 -0800 From: Sean-Paul Rees <sean@dreamfire.net> To: freebsd-stable@FreeBSD.ORG Subject: Re: AMD 3DNow instructions on FreeBSD Message-ID: <38616027.2BB9C789@dreamfire.net> References: <199912222253.XAA16064@dorifer.heim3.tu-clausthal.de>
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Oliver Fromme wrote: > > Sean-Paul Rees wrote in list.freebsd-stable: > > Is there a MMX enabled setiathome for us with non-3DNow! enhanced > > processors? > > No, MMX is completely useless for this kind of stuff, because > MMX does not support floating point operations. Sorry. > > However, I modified the FFT algorithm to optimize memory > throughput, at the cost of memory footprint (it needs about > 2 Mbyte more RAM). The speed increase is not as impressive > as with the 3DNow version, but it's still significant. > Here are some numbers: Thats a pretty big increase. I wish those seti folks would get a clue and build new clients for it. I'm assuming your patches generate the same results? Sean To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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