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Old 2011-04-20, 20:09   #21
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Dec 2003
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Quote:
Originally Posted by zerothbase View Post
So there has been an improvement from 15 minutes for BPSW to <3 minutes for my 4-MR tests (assuming the 15 minutes was done on modern HW).
I didn't time it at all, I was only interested in the result, so the 15min was just a hunch, it could be anywhere from 10 to 20min. Also the code is purely GMP so could get a big improvement with the mulmod64 assembly code.

http://www.trnicely.net/misc/bpsw.html
"However, a Baillie-PSW test typically requires roughly three to seven times as many bit operations as a single Miller-Rabin test."

and R.D. Silverman says it takes 2 x SPRP. So it might compete with 4 bases SPRP test with proper coding.
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