#7634: switch default Sage graphs over to c_graph
----------------------------+-----------------------------------------------
   Reporter:  rlm           |       Owner:  rlm          
       Type:  enhancement   |      Status:  needs_work   
   Priority:  major         |   Milestone:  sage-4.3     
  Component:  graph theory  |    Keywords:               
Work_issues:                |      Author:  Robert Miller
   Upstream:  N/A           |    Reviewer:               
     Merged:                |  
----------------------------+-----------------------------------------------

Comment(by ncohen):

 With the patch from #7640, it gives :

 BEFORE:
 {{{
 G = graphs.CubeGraph(8)
 sage: time a=G.distance_graph([1,3,5,7])
 CPU times: user 8.15 s, sys: 0.03 s, total: 8.17 s
 Wall time: 8.18 s
 }}}

 AFTER:
 {{{
 G = graphs.CubeGraph(8)
 sage: time a=G.distance_graph([1,3,5,7])
 CPU times: user 6.51 s, sys: 0.03 s, total: 6.55 s
 Wall time: 6.56 s
 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7634#comment:9>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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