This is the page for the genus2fiber program, which computes what percentage of tunnel-number one 3-manifolds fiber; this is a supplement to the paper A random tunnel number one 3-manifold does not fiber over the circle, by Nathan M. Dunfield and Dylan P. Thurston, arXiv:math.GT/0510129. See the paper for details on the mathematics and goal behind the program.
You can download the binary (statically linked i386 binary) or source code. This version: October 15, 2014.