blob: 06813562337729b90f06660d70c6db11e6bf301e (
plain) (
blame)
1
2
3
4
5
6
7
8
9
|
This port installs the module BTF of SuiteSparse.
BTF is a software package for permuting a matrix into block upper triangular
form. It includes a maximum transversal algorithm, which finds a permutation
of a square or rectangular matrix so that it has a zero-free diagonal (if one
exists); otherwise, it finds a maximal matching which maximizes the number of
nonzeros on the diagonal. The package also includes a method for finding the
strongly connected components of a graph. These two methods together give the
permutation to block upper triangular form.
|
