Using a fairly highly tuned C implementation of a Sieve of Atkin prime generator, finding the 15 millionth prime takes just over one second. Using my load and lookup Perl takes just under to do the same thing.

I think it doubtful that a pure perl implementation could achieve anywhere near this performance, as the C implementation is using hand-coded optimisations for 32-bit math--unwinding loops; using lookups instead of division; tailoring to L1 cache sizes etc. But you might prove me wrong :)

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
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In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^6: Math help: Finding Prime Numbers by BrowserUk
in thread Math help: Finding Prime Numbers by Ovid

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