#11684: Obtaining coefficients of polynomials over finite fields is extremely
slow
---------------------------+------------------------------------------------
Reporter: johanbosman | Owner: tbd
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.7.2
Component: performance | Keywords: polynomials, finite fields
Work_issues: | Upstream: N/A
Reviewer: | Author: Johan Bosman
Merged: | Dependencies: #11685
---------------------------+------------------------------------------------
Changes (by newvalueoldvalue):
* status: new => needs_review
* dependencies: => #11685
* author: => Johan Bosman
Comment:
The uploaded patch improves the speed slightly:
{{{
sage: K.<a> = GF(5^3)
sage: P = PolynomialRing(K, 'x')
sage: f = P.random_element(100)
sage: timeit('f.list()')
125 loops, best of 3: 2.92 ms per loop
}}}
A real fix would of course be an NTL wrapper for finite fields, which is a
huge project that may not get finished soon.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11684#comment:1>
Sage <http://www.sagemath.org>
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