#20413: InteractiveLPProblem: Use standard-form transformation,
objective_constant_term
-------------------------------------+-------------------------------------
Reporter: mkoeppe | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.2
Component: numerical | Resolution:
Keywords: lp | Merged in:
Authors: Matthias Koeppe | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/mkoeppe/fx_with_new_interactive_simplex_objshift|
c071f9a2a60f375c6b0fc731d73e5bcb89d5ea93
Dependencies: #20296, #20311, | Stopgaps:
#20301 |
-------------------------------------+-------------------------------------
Comment (by mkoeppe):
At the moment, `InteractiveLPBackend` chooses `AA` as the default base
ring, that's probably a bad idea (I'll change it).
If I change it to `QQ`, I get the following comparison:
{{{
sage: %time delsarte_bound_additive_hamming_space(19,15,7,solver='ppl')
CPU times: user 153 ms, sys: 13.4 ms, total: 167 ms
Wall time: 163 ms
3
sage: %time delsarte_bound_additive_hamming_space(19,15,7,solver='glpk')
CPU times: user 84.9 ms, sys: 14.7 ms, total: 99.6 ms
Wall time: 109 ms
3
sage: %time delsarte_bound_additive_hamming_space(19,15,7,solver='coin')
CPU times: user 87.9 ms, sys: 16.1 ms, total: 104 ms
Wall time: 160 ms
3
sage: %time
delsarte_bound_additive_hamming_space(19,15,7,solver='interactivelp')
CPU times: user 10.6 s, sys: 91.1 ms, total: 10.7 s
Wall time: 10.8 s
3
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/20413#comment:8>
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