#20726: Change default algorithm for computing homology to 'pari'
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Reporter: jhpalmieri | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-7.3
Component: algebraic topology | Keywords:
Merged in: | Authors: John Palmieri
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies: #20723
Stopgaps: |
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In recent tests, using pari is faster than Sage's current default
algorithm for computing homology groups of chain complexes. For example:
{{{
sage: %timeit simplicial_complexes.RandomComplex(12,
4).chain_complex().homology(algorithm='auto')
1 loop, best of 3: 7.84 s per loop
sage: %timeit simplicial_complexes.RandomComplex(12,
4).chain_complex().homology(algorithm='pari')
1 loop, best of 3: 1.11 s per loop
}}}
So change the default setting for the keyword `algorithm` from `'auto'` to
`'pari'`.
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Ticket URL: <http://trac.sagemath.org/ticket/20726>
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