From: Benjamin Ylvisaker <ben8@cs.washington.edu>
To: caml-list@yquem.inria.fr
Subject: ocamlgraph predecessors
Date: Fri, 7 Aug 2009 22:24:50 -0700 [thread overview]
Message-ID: <4EC4528F-4993-482F-8ECB-ED6848C3FC4D@cs.washington.edu> (raw)
I have been using ocamlgraph for a while, and have been generally
happy with it. I experienced some poor performance with moderately
large graphs (10-100k vertices) recently, which led me to look through
the source code a little. It seems that doing anything with the
predecessors of a vertex, even just getting a list of them, requires
scanning through all the vertices in a graph. This seems a little
crazy to me. Am I missing something? Is there some kind of work-
around that gives reasonable performance for predecessor operations
(i.e. not O(|V|)).
Thanks,
Ben
next reply other threads:[~2009-08-08 5:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-08 5:24 Benjamin Ylvisaker [this message]
2009-08-08 13:35 ` [Caml-list] " Edgar Friendly
2009-08-08 20:16 ` Benjamin Ylvisaker
2009-08-09 14:56 ` Edgar Friendly
2009-08-25 14:22 ` Julien Signoles
2009-08-25 14:22 ` Julien Signoles
2009-08-26 14:35 ` Benjamin Ylvisaker
2009-08-26 6:54 ` Jean-Christophe Filliâtre
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