SAWdoubler for counting self-avoiding walks


SAWdoubler

SAWdoubler is a software package for counting the number of self-avoiding walks on a regular lattice, based on the length-doubling method described in: Exact enumeration of self-avoiding walks by Raoul D. Schram, Gerard T. Barkema, and Rob H. Bisseling Journal of Statistical Mechanics: Theory and Experiment (2011) p06019.

The aim of the package is to enable counting self-avoiding walks on a variety of lattices, and stimulate research into this topic. Please feel free to explore the possibilities of modifying this program. Have fun!

The package includes three example lattices: the 3D simple cubic (SC) lattice, the BCC lattice, and the FCC lattice. All functions related to the specific lattice are included in one file (e.g. lattice_sc.c) and all functions related to the counting procedure in another (sawdoubler.c). Furthermore there are files that capture common symmetries of the lattices. This way, it is easy to modify the lattice without touching the counting functions and data structures.

Download

Download the latest version of the SAWdoubler software, version 2.0 (tar gzipped), released March 28, 2017.

New features of version 2.0

Related papers

The length-doubling method has been published in Exact enumeration of self-avoiding walks by Raoul D. Schram, Gerard T. Barkema, and Rob H. Bisseling Journal of Statistical Mechanics: Theory and Experiment (2011) p06019.

The paper accompanying the SAWdoubler software, explaining the algorithm and its implementation, and also presenting timing experiments and discussing memory use is SAWdoubler: a program for counting self-avoiding walks by Raoul D. Schram, Gerard T. Barkema, and Rob H. Bisseling, Computer Physics Communications, 184 (2013) pp. 891-898.

Results on the BCC and FCC lattice are obtained and analysed in Exact enumeration of self-avoiding walks on BCC and FCC lattices by Raoul D. Schram, Gerard T. Barkema, Rob H. Bisseling, and Nathan Clisby, arXiv:1703.09340 [cond-mat.stat-mech] March 27, 2017.

Documentation

See the extensive README file.

Selected related lectures

Copyright

This software is copyrighted (version 1, 2012; version 2, 2017) by Raoul Schram, Rob Bisseling, Gerard Barkema. You can use and modify it under the GNU Lesser General Public License, see GNU Licenses. Also see the files, README, COPYING, COPYING.LESSER. Anything free, as usual, comes with no guarantee!

Contributions

Other contributions are welcome!

Previous versions

Download the first version of the SAWdoubler software, version 1.0 (tar gzipped), released August 15, 2012.


Last updated March 29, 2017.
to Home page Rob Bisseling.