#17147: Overriding checks to generate poset and lattice faster
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Reporter: jmantysalo | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-wishlist
Component: combinatorics | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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Now for example `Posets.ChainPoset(500)` takes about 10 second. It does
something like 1) make a list, 2) make a poset from list, checking that
list really is acyclic as when read as digraph edges and 3) make a lattice
from poset, checking that poset really is lattice. Phase 3 is done by
really generating meet- and join-matrix.
Poset and lattice creating functions need an option that says "do not
check, trust blindly".
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Ticket URL: <http://trac.sagemath.org/ticket/17147>
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