#13840: IntegerListsLex speedup
-----------------------------+----------------------------------------------
Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.6
Component: combinatorics | Keywords: optimization, integerlistlex
Work issues: | Report Upstream: N/A
Reviewers: | Authors: Travis Scrimshaw
Merged in: | Dependencies:
Stopgaps: |
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This patch speeds up `IntegerListsLex` by removing calls to sage's
`infinity` and has `max_slope` and `min_slope` set to `None` and has
`max_part` default to `float(infinity)`.
Before the patch:
{{{
sage: time p = Partitions(150, max_slope=-1, length=15).list()
Time: CPU 14.04 s, Wall: 14.64 s
}}}
After:
{{{
sage: time p = Partitions(150, max_slope=-1, length=15).list()
Time: CPU 2.86 s, Wall: 2.98 s
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13840>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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