#7571: use more dicts in graph.py
----------------------------+-----------------------------------------------
Reporter: ylchapuy | Owner: rlm
Type: enhancement | Status: positive_review
Priority: minor | Milestone: sage-4.3
Component: graph theory | Keywords:
Work_issues: | Author: Yann Laigle-Chapuy
Upstream: N/A | Reviewer:
Merged: |
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Comment(by ylchapuy):
that's true, benchmarks are not very convincing. Here are new ones:
before:
{{{
sage: set_random_seed(42)
sage: g=graphs.RandomGNP(20000,.00005)
sage: time g.girth()
CPU times: user 17.55 s, sys: 0.07 s, total: 17.62 s
Wall time: 17.83 s
16
sage: time g.connected_components_number()
CPU times: user 8.40 s, sys: 0.08 s, total: 8.48 s
Wall time: 8.72 s
9810
sage: set_random_seed(42)
sage: g=graphs.RandomGNP(10000,.005)
sage: time b=g.blocks_and_cut_vertices()
CPU times: user 17.19 s, sys: 0.44 s, total: 17.63 s
Wall time: 17.98 s
}}}
after:
{{{
sage: set_random_seed(42)
sage: g=graphs.RandomGNP(20000,.00005)
sage: time g.girth()
CPU times: user 2.15 s, sys: 0.00 s, total: 2.16 s
Wall time: 2.15 s
16
sage: time g.connected_components_number()
CPU times: user 0.32 s, sys: 0.00 s, total: 0.32 s
Wall time: 0.32 s
9810
sage: set_random_seed(42)
sage: g=graphs.RandomGNP(10000,.005)
sage: time b=g.blocks_and_cut_vertices()
CPU times: user 10.22 s, sys: 0.04 s, total: 10.27 s
Wall time: 10.57 s
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7571#comment:4>
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