For those who are interested, Yves Gallot has released Proth 6.6, which has great speed-ups for some architectures. His post to the PrimeNumbers list follows. Regards, Nathan
Proth 6.6 is on the Web. This new release detects CPU with L2 cache on die (new PIII and Celeron, P4) and with large L1 cache (Athlon and Duron). On these processors, a different size is used for internal blocks. On a Celeron 800 for the GFN of the form b^65536+1, the version 6.6 is 10% faster than the 6.5 and 20% faster than the 6.4. Now, on this computer the test of a GFN having less than 3,000,000 digits is as fast as the test of a Mersenne number with Prime95... and there are more GF primes not yet discovered in this range than Mersenne primes! Yves Unsubscribe by an email to: [EMAIL PROTECTED] The Prime Pages : http://www.primepages.org Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/