[Caml-list] BDD reloaded
Pietro Abate
I've done my homework and I've collected few links about bdd
libraries. I still have few questions:
+ Is there a native (and efficient) ocaml BDD implementation ? In
particular, as pointed out on this mailing list, with variable ordering
and other possible optimizations that can be compared in speed with
buddy/cudd (c/c++).
= From what I can see, the answer is no. A lot of toy implementations
though...
+ Do you know if there is an ocaml binding for buddy ?
= I guess no, but I hope I'm wrong...
+ Does anybody have experience with the bindings done at inrialpes to
CUDD ? Is this project still actively maintained / used ? How does it
compare efficiency-wise with other bdd libraries ?
+ If I was to start writing my ocaml bindings, which c/c++ library would
you advice ? Buddy seems widely used, but I wasn't able to find any
hard evidence that it is the best bdd library available... Do you know
of any paper surveying different bdd implementations ?
thanks :)
p
----------------------------- My links for reference ----------------
Please add to the list if you know of other libraries that I forgot to
mention. This might end up to be a FAQ...
==Ocaml libraries (bindings and native in no particular order) :==
* Jean-Christophe Filliâtre (ocaml implementation)
http://www.lri.fr/~filliatr/ftp/publis/hash-consing2.ps.gz Paper
http://www.lri.fr/~filliatr/ftp/ocaml/bdd/ Code
* bindings to the CUDD BDD library
http://www.inrialpes.fr/pop-art/people/bjeannet/mlxxxidl-forge/ Code
* Olivier Michel (ocaml implementation)
http://www.ibisc.univ-evry.fr/~michel/BDD/ Code
* Xavier Leroy (part of an experimental sat solver)
https://gforge.inria.fr/plugins/scmsvn/viewcvs.php/attic/xlsat/?root=sodiac Code
* John Harrison
http://www.cl.cam.ac.uk/~jrh13/atp/OCaml/bdd.ml Code
* Ocaml implementation (who is the author ?)
http://oops.tepkom.ru/projects/ocamlbdd/ Wiki
==C/C++ Libraries==
* http://buddy.wiki.sourceforge.net/ Buddy
* http://vlsicad.eecs.umich.edu/BK/Slots/cache/www.itu.dk/research/buddy/index.html Old version of Buddy
* http://vlsi.colorado.edu/~fabio/CUDD/cuddIntro.html CUDD
* many other cited in the wikipedia link on bdds
==Relevant Mailing list Messages==
The ocaml ml has several references to BDDs. These are 3 interesting threads
that I've used as a starting point for my research.
In this thread
http://caml.inria.fr/pub/ml-archives/caml-list/2000/01/405b651014b09c51c691aab72d69166a.en.html
there is mention of a possible binding for JÞrn Lind-Nielsen's BDD
library BuDDy. I'm wondering if this binding was ever released.
In this thread
http://groups.google.com/group/fa.caml/browse_frm/thread/4af5391f52279e38/550b7df324ae1900#550b7df324ae1900
Alain Frish points out that none of existing ocaml libraries implements
automatic reordering of variables... And I don't know if the state of affairs
is changed at this regard.
In this thread
http://caml.inria.fr/pub/ml-archives/caml-list/2001/04/8bbf7629ef3ef299c16f78bd2b986e36.en.html
David Mentre announces a preliminary work on binding for the cudd
library, but the link is broken... this link currently is broken:
http://www-rocq.inria.fr/~mentre/software/ocaml-bdd/
and there is a mention to a caml-light implementation of a robdd library
that I was also not able to retrieve.
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Alain Frisch
> + Do you know if there is an ocaml binding for buddy ?
>
> = I guess no, but I hope I'm wrong...
I believe that Akihiko Tozawa wrote such a binding for his XSLT0
typechecker. You should check with him.
-- Alain
David MENTRE
Sorry for the late reply[1].
Pietro Abate <Pietro...@pps.jussieu.fr> writes:
> In this thread
> http://caml.inria.fr/pub/ml-archives/caml-list/2001/04/8bbf7629ef3ef299c16f78bd2b986e36.en.html
> David Mentre announces a preliminary work on binding for the cudd
> library, but the link is broken... this link currently is broken:
> http://www-rocq.inria.fr/~mentre/software/ocaml-bdd/
> and there is a mention to a caml-light implementation of a robdd library
> that I was also not able to retrieve.
The code was a binding for CMU bdd library
(http://www.cs.cmu.edu/~modelcheck/bdd.html). It was working great at
that time (OCaml 3.00) and is rather simple. I have no idea if it would
still work with recent OCaml (let me know).
I put the archive on the web. Code is under a BSD license.
http://www.linux-france.org/~dmentre/code/OcamlBdd.tar.gz
Code provided as is. I mean... really. ;-)
Yours,
d.
Footnotes:
[1] And many thanks to Alan for his CWN that keeps us informed!
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