#15704: Stupid waste of time in graphs 1
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Reporter: ncohen | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.1
Component: graph theory | Keywords:
Merged in: | Authors: Nathann Cohen
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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............
The point is that MY computations are never long because of the add/remove
edge functions. I should pay more attention `T_T`
Before
{{{
sage: g = graphs.RandomGNP(1500,.4)
sage: edges = g.edges(labels=False)
sage: %time Graph(edges)
CPU times: user 2.50 s, sys: 0.03 s, total: 2.52 s
Wall time: 2.55 s
Graph on 1500 vertices
sage: h = Graph()
sage: %time h.add_edges(edges)
CPU times: user 4.90 s, sys: 0.02 s, total: 4.92 s
Wall time: 4.93 s
}}}
After
{{{
sage: g = graphs.RandomGNP(1500,.4)
sage: edges = g.edges(labels=False)
sage: %time Graph(edges)
CPU times: user 2.12 s, sys: 0.02 s, total: 2.14 s
Wall time: 2.16 s
Graph on 1500 vertices
sage: h = Graph()
sage: %time h.add_edges(edges)
CPU times: user 1.48 s, sys: 0.02 s, total: 1.50 s
Wall time: 1.52 s
}}}
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/15704>
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