#11475: improve prime_pi (speedup + small fixes)
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Reporter: rohana | Owner: was
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.7.1
Component: number theory | Keywords: primes, prime counting, prime_pi
Work_issues: | Upstream: N/A
Reviewer: | Author: R. Andrew Ohana
Merged: | Dependencies:
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Comment(by rohana):
Hopefully that was the only issue with 32-bit systems. Basically gmp wants
a 32-bit int for mpz_set_ui on 32-bit systems, so I gave it what it wanted
(this was also causing the issue with the `__sieve` function, since I use
the `mpz_sqrt` function to calculate the argument).
I am currently doing some more thorough testing with large values on a
64-bit machine, so that we can be sure there isn't any more breakage on
the stable platform.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11475#comment:30>
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