ISColoring#
sets of IS’s that define a coloring of something, such as a graph defined by a sparse matrix
Synopsis#
typedef struct _n_ISColoring *ISColoring;
Notes#
One should not access the *is records below directly because they may not yet
have been created. One should use ISColoringGetIS() to make sure they are
created when needed.
When the coloring type is IS_COLORING_LOCAL the coloring is in the local ordering of the unknowns.
That is the matching the local (ghosted) vector; a local to global mapping must be applied to map
them to the global ordering.
Developer Note#
This is not a PetscObject
See Also#
IS, MatColoringCreate(), MatColoring, ISColoringCreate(), ISColoringGetIS(), ISColoringView()
Level#
intermediate
Location#
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages