#18760: Posets: Slightly faster is_lattice()
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: needs_work
Priority: minor | Milestone: sage-6.8
Component: combinatorics | Resolution:
Keywords: posets | Merged in:
Authors: Jori Mäntysalo | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jmantysalo/posets__slightly_faster_is_lattice__|
46cf5a4fa8775ba1fdcb9d6042d16a14092032e1
Dependencies: | Stopgaps:
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Changes (by deinst):
* status: needs_review => needs_work
Comment:
Please, please, please, please run `make ptestlong` or `make testlong`
before submitting something for review, no matter how trivial the change.
The heat death of the universe is progressing just fine by itself. In
other words you are missing a pair of parentheses after cardinality.
The fact that it runs slightly faster than twice as fast on average for
all posets of size 8 is surprising at first but not unexpected we are
much faster on those posets with a bottom but no top, about the same (but
very fast) for the ones with no bottom and about as fast to twice as fast
for the ones with both.
--
Ticket URL: <http://trac.sagemath.org/ticket/18760#comment:9>
Sage <http://www.sagemath.org>
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