petsc-3.5.4 2015-05-23

ISColoringCreate

Generates an ISColoring context from lists (provided by each processor) of colors for each node.

Synopsis

#include "petscis.h"  
PetscErrorCode  ISColoringCreate(MPI_Comm comm,PetscInt ncolors,PetscInt n,const ISColoringValue colors[],ISColoring *iscoloring)

Collective on MPI_Comm

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 processor, color numbers begin at 0. In C/C++ this array must have been obtained with PetscMalloc() and should NOT be freed (The ISColoringDestroy() will free it).

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

Examples