Re: [igraph] Retrieve nodes forming a motif with subgraph_isomorphisms

[Dr Gregory Jefferis]

On 19 Aug 2015, at 2:30, Phil Cui wrote:

> Hi Greg,
>
> Thank you for sharing us with what you have experienced. This is 
> exactly
> what happened on my code, i.e. such data structure as igraph.vs and
> igraph.es in the new version of igraph seem slow down indexing.  I 
> will try
> to turn off the option of the encapsulated data structure according to 
> your
> suggestion by setting igraph_options(return.vs.es = F ) and to check 
> if it
> will run faster. Will let you know.

Just to add that if you read through the thread, Gabor explained why he 
does not recommend setting this option for general use.

You could try installing the latest version from github and see if that 
helps. And of course if you can convert the returned sequences to 
integers that will be much faster again.

Best,

Greg.


--
Gregory Jefferis, PhD
Division of Neurobiology
MRC Laboratory of Molecular Biology
Francis Crick Avenue
Cambridge Biomedical Campus
Cambridge, CB2 OQH, UK

http://www2.mrc-lmb.cam.ac.uk/group-leaders/h-to-m/g-jefferis
http://jefferislab.org
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