How do we perform bipartite coloring?

[gdalle]

At the moment the only example I had to work with (from the README) transforms a sparse Jacobian into a column adjacency matrix with matrix2adjmatrix.
What happens when we want to do a partial distance 2 coloring on the bipartite graph? Do we just supply the matrix directly without transformation?
What if we want to color the rows instead of the columns? Do we supply its transpose?

[gdalle]

@michel2323 any clues?

[gdalle]

I have performed a small test and I have my answer: bipartite coloring does not seem to be supported. A bipartite row-column adjacency matrix must be converted to an adjacency matrix (which represents a much denser graph), otherwise this line throws an AssertionError:

ColPack.jl/src/colpackcoloring.jl

Line 79 in 01dd282

@assert issymmetric(M)