MatFDColoring

Object for computing a sparse Jacobian via finite differences with coloring

Synopsis

typedef struct _p_MatFDColoring *MatFDColoring;

Options Database Key

• -snes_fd_coloring - cause the Jacobian needed by SNES to be computed via a use of this object

Note

This object is created utilizing a coloring provided by the MatColoring object or DMCreateColoring()

See Also

Matrices, Mat, MatFDColoringCreate(), MatFDColoringSetFunction(), MatColoring, DMCreateColoring()

Level

beginner

Location

include/petscmat.h

Examples

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

Implementations

_p_MatFDColoring in include/petsc/private/matimpl.h

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