#12853: Severe slow-down in elliptic_curve integral_points()
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Reporter: jdemeyer | Owner: tbd
Type: defect | Status: new
Priority: blocker | Milestone: sage-5.0
Component: performance | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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Consider the file
{{{
E = EllipticCurve([-879984,319138704])
P1 = E.point((540,1188))
P2 = E.point((576,1836))
P3 = E.point((468,3132))
P4 = E.point((612,3132))
P5 = E.point((432,4428))
t = cputime()
pts = E.integral_points([P1,P2,P3,P4,P5])
print "Time:", cputime(t)
}}}
With sage-4.8, this takes about 35 seconds. With sage-5.0.beta10, the
same test takes about 50 seconds.
According to Volker Braun, this is caused by #11599.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12853>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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