thank you. Half the time I laugh out loud when I read your comments. It's hard to decide what I like better: your sense of humor or your coding skills.
I must've missed the details on how C37 improves upon performance over A36, because the difference I was seeing was negligible - sorry, no numbers to post at the moment. But I'll try the S38 over the next day or two and let you know what I find. :)
Thanks for all of your efforts, akosf. :D
C37 did give a noticeable gain for P4 systems. There was no real benefit on AMD chips. Also IIRC C37 was entirely 386 compatable and gave large gains to people using older machines (mainly amd since they lagged badly in adding intel extentions to thier architecture).
[Bruce suggested to me Chebyshev polinomials instead of Taylor series a month ago. I did a fast test to compare these methods, but I found that Chebyshev approximation produced worse average by same number of coefficients. I'm working on a program that will generate more precise values)
[Bruce suggested to me Chebyshev polinomials instead of Taylor series a month ago. I did a fast test to compare these methods, but I found that Chebyshev approximation produced worse average by same number of coefficients. I'm working on a program that will generate more precise values)
RE: Based on 4 results, my
)
My XP 2600+ system is upgraded and has completed a single result now. It shows approximately 1400 seconds less for a 23% decrease in processing time.
Good job!!
Seti Classic Final Total: 11446 WU.
My A64 3000+ @2.3GHz is now
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My A64 3000+ @2.3GHz is now doing a WU in about 1200 seconds.
Fantastic Akosf!
kev
A64 X2 4400+ @2.85GHz, 2x XP 1800+ @2000+
RE: I find very interesting
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Yes, these values good for analysing.
I can determine when doesn't use somebody the computer. So, good time for hacking... ;-))
Akos, thank you. Half the
)
Akos,
thank you. Half the time I laugh out loud when I read your comments. It's hard to decide what I like better: your sense of humor or your coding skills.
Hans
RE: I must've missed the
)
C37 did give a noticeable gain for P4 systems. There was no real benefit on AMD chips. Also IIRC C37 was entirely 386 compatable and gave large gains to people using older machines (mainly amd since they lagged badly in adding intel extentions to thier architecture).
RE: [Bruce suggested to me
)
See Section 5.8 page 192 of Numerical Recipes. You should also look at page 76 of Abramowitz and Stegun.
Director, Einstein@Home
RE: RE: [Bruce suggested
)
THANKS Bruce!
But I found a much faster method to calculate sin/cos values, so S39 has it!
Thanks to nadamhu!
S38 gave me 25 minutes less
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S38 gave me 25 minutes less crunch time than C37....
Off to try S39........I can't keep up.