#17464: Computing the automorphism group of a graph
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Reporter: azi | Owner:
Type: | Status: needs_work
enhancement | Milestone: sage-6.5
Priority: major | Resolution:
Component: graph | Merged in:
theory | Reviewers:
Keywords: | Work issues:
Authors: | Commit:
Report Upstream: N/A | 3c37cb81e7bfbc58f953035054dd4c30d0750880
Branch: | Stopgaps:
public/bliss |
Dependencies: |
#17552 |
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Comment (by azi):
Looks really weird.
I am waiting to figure out how can I be able to force a certain heuristic
to be used because the behaviour right now is just sick. I've changed the
"hook function" to an empty function (not doing any work) and its still
messy:
{{{
sage: D = digraphs.Kautz(10,3,2)
sage: from sage.graphs.bliss import *
sage: automorphism_group(D)
Permutation Group with generators [()]
sage: automorphism_group(D)
Permutation Group with generators [()]
sage: automorphism_group(D)
Permutation Group with generators [()]
sage: automorphism_group(D)
Permutation Group with generators [()]
sage: automorphism_group(D)
Bliss fatal error: Internal error - unknown splitting heuristics
Aborting!
}}}
if G is a graph then
{{{
while True: A = automorphism_group(G)
}}}
works well. :O
--
Ticket URL: <http://trac.sagemath.org/ticket/17464#comment:31>
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