petsc-3.12.5 2020-03-29
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MatFDColoringCreate

 Creates a matrix coloring context for finite difference computation of Jacobians.

Synopsis

#include "petscmat.h" 
PetscErrorCode  MatFDColoringCreate(Mat mat,ISColoring iscoloring,MatFDColoring *color)
Collective on Mat

Input Parameters

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

Output Parameter

color -the new coloring context

See Also

MatFDColoringDestroy(),SNESComputeJacobianDefaultColor(), ISColoringCreate(),
MatFDColoringSetFunction(), MatFDColoringSetFromOptions(), MatFDColoringApply(), MatFDColoringView(), MatFDColoringSetParameters(), MatColoringCreate(), DMCreateColoring()

Level

intermediate

Location

src/mat/matfd/fdmatrix.c

Examples

src/mat/examples/tutorials/ex16.c.html
src/snes/examples/tutorials/ex14.c.html
src/tao/unconstrained/examples/tutorials/minsurf2.c.html

Implementations

MatFDColoringCreate_MPIXAIJ in src/mat/impls/aij/mpi/fdmpiaij.c
MatFDColoringCreate_SeqXAIJ in src/mat/impls/aij/seq/fdaij.c

Index of all MatFD routines
Table of Contents for all manual pages
Index of all manual pages