petsc-3.14.6 2021-03-30

MatFDColoringSetUp

Sets up the internal data structures of matrix coloring context for the later use.

#include "petscmat.h" 
PetscErrorCode MatFDColoringSetUp(Mat mat,ISColoring iscoloring,MatFDColoring color)

Collective on Mat

	mat	- the matrix containing the nonzero structure of the Jacobian
	iscoloring	- the coloring of the matrix; usually obtained with MatGetColoring() or DMCreateColoring()
	color	- the matrix coloring context

Notes: When the coloring type is IS_COLORING_LOCAL the coloring is in the local ordering of the unknowns.

beginner