[petsc-users] Coloring of a parallel matrix

[Kostas Kontzialis]

Dear all,

  I'm using a matrix free method for the solution of the Navier-Stokes 
equaiotns on unstructured meshes. I want to numerically evaluate the 
elements of the residual's Jacobian matrix. I know  where the non zero 
elements of the matrix are, but I read on the manual, that function 
MatGetColoring works only on sequential matrices. What should I do?

Kostas