petsc-3.7.5 2017-01-01
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MatFDColoringSetType

 Sets the approach for computing the finite difference parameter

Synopsis

#include "petscmat.h" 
PetscErrorCode  MatFDColoringSetType(MatFDColoring matfd,MatMFFDType type)
Collective on MatFDColoring

Input Parameters

coloring - the coloring context
type - either MATMFFD_WP or MATMFFD_DS

Options Database Keys

-mat_fd_type -"wp" or "ds"

Note: It is goofy that the argument type is MatMFFDType since the MatFDColoring actually computes the matrix entries but the process of computing the entries is the same as as with the MatMFFD operation so we should reuse the names instead of introducing another one.

Keywords

Mat, finite differences, parameters

See Also

MatFDColoringCreate(), MatFDColoringView(), MatFDColoringSetParameters()

Level:intermediate
Location:src/mat/matfd/fdmatrix.c
Index of all MatFD routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/snes/examples/tutorials/ex14.c.html