#15269: Speeding up tableau's cells_containing and weight methods
-----------------------------+-------------------------------------
Reporter: darij | Owner:
Type: enhancement | Status: new
Priority: minor | Milestone: sage-5.13
Component: combinatorics | Keywords: tableau, combinat
Merged in: | Authors: Darij Grinberg
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
-----------------------------+-------------------------------------
I know that the current implementation of tableaux in Sage is not long for
this world (mutability WTF), but here are two small pieces of simple code
that can be improved:
Before:
{{{
sage: %timeit
Tableau([[1,1,2,8,9],[2,5,6,11],[3,7,7,13],[4,8,9],[5],[13],[14]]).cells_containing(4)
1000 loops, best of 3: 449 us per loop
}}}
After:
{{{
sage: %timeit
Tableau([[1,1,2,8,9],[2,5,6,11],[3,7,7,13],[4,8,9],[5],[13],[14]]).cells_containing(4)
10000 loops, best of 3: 81.5 us per loop
}}}
Before:
{{{
sage: %timeit
Tableau([[1,1,2,8,9],[2,5,6,11],[3,7,7,13],[4,8,9],[5],[13],[14]]).weight()
10000 loops, best of 3: 190 us per loop
}}}
After:
{{{
sage: %timeit
Tableau([[1,1,2,8,9],[2,5,6,11],[3,7,7,13],[4,8,9],[5],[13],[14]]).weight2()
10000 loops, best of 3: 87.4 us per loop
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/15269>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/groups/opt_out.
