#10140: Base sage.geometry.cone on the Parma Polyhedra Library (PPL)
----------------------------+-----------------------------------------------
Reporter: vbraun | Owner: mhampton
Type: enhancement | Status: new
Priority: major | Milestone: sage-feature
Component: geometry | Keywords: ppl
Author: Volker Braun | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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As a first useful application of the PPL Cython library interface I have
changed `sage.geometry.cone.Cone` to use the PPL wrapper instead of
`cddlib`. Here is a quick benchmark with a fan that was somewhat
challenging:
{{{
sage: from sage.schemes.generic.toric_variety_library import
toric_varieties_rays_cones
sage: rays, cones = toric_varieties_rays_cones['BCdlOG']
sage: timeit('Fan(cones,rays)')
5 loops, best of 3: 1.95 s per loop
}}}
With the old `Polyhedron`/`cddlib` interface, I got instead
{{{
5 loops, best of 3: 42.1 s per loop
}}}
Depends on #10039: Make Parma Polyhedra Library a standard library
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10140>
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