MatColoringSetFromOptions#
Sets MatColoring options from options database
Synopsis#
#include "petscmat.h"  
PetscErrorCode MatColoringSetFromOptions(MatColoring mc)
Collective
Input Parameter#
- mc - - MatColoringcontext
Options Database Keys#
- -mat_coloring_type - the type of coloring algorithm used. See - MatColoringType.
- -mat_coloring_maxcolors - the maximum number of relevant colors, all nodes not in a color are in maxcolors+1 
- -mat_coloring_distance - compute a distance 1,2,… coloring. 
- -mat_coloring_view - print information about the coloring and the produced index sets 
- -snes_fd_color - instruct SNES to using coloring and then - MatFDColoringto compute the Jacobians
- -snes_fd_color_use_mat - instruct - SNESto color the matrix directly instead of the- DMfrom which the matrix comes (the default)
See Also#
MatColoring, MatColoringApply(), MatColoringSetDistance(), MatColoringSetType(), SNESComputeJacobianDefaultColor(), MatColoringType
Level#
beginner
Location#
Examples#
Implementations#
MatColoringSetFromOptions_Greedy() in src/mat/graphops/color/impls/greedy/greedy.c
MatColoringSetFromOptions_JP() in src/mat/graphops/color/impls/jp/jp.c
Index of all MatGraphOperations routines
Table of Contents for all manual pages
Index of all manual pages