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Old 2009-12-15, 09:54   #11
TheJudger's Avatar
Mar 2005

2×3×5×37 Posts


my first attempt to reduce the number of sieve initialisations to one per group failed greatly... :(

The good news: the 2nd attempt works fine an took only ~10 lines of code :)

sieving the first 2000 primes:
TF M66xxxxxx to 2^60: 17 seconds (too much overhead for sieve initialisation...)

sieving the first 4000 primes:
TF M66xxxxxx to 2^64: 220 seconds :)

Last fiddled with by TheJudger on 2009-12-15 at 09:55
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