ISColoringCreate#
Generates an ISColoring context from lists (provided by each MPI process) of colors for each node.
Synopsis#
#include "petscis.h"
PetscErrorCode ISColoringCreate(MPI_Comm comm, PetscInt ncolors, PetscInt n, const ISColoringValue colors[], PetscCopyMode mode, ISColoring *iscoloring)
Collective
Input Parameters#
comm - communicator for the processors creating the coloring
ncolors - max color value
n - number of nodes on this processor
colors - array containing the colors for this MPI rank, color numbers begin at 0, for each local node
mode - see
PetscCopyModefor meaning of this flag.
Output Parameter#
iscoloring - the resulting coloring data structure
Options Database Key#
-is_coloring_view - Activates
ISColoringView()
Notes#
By default sets coloring type to IS_COLORING_GLOBAL
See Also#
ISColoring, ISColoringValue, MatColoringCreate(), ISColoringView(), ISColoringDestroy(), ISColoringSetType()
Level#
advanced
Location#
src/vec/is/is/utils/iscoloring.c
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages