petsc-3.7.5 2017-01-01
DMForestGetCellWeightFactor
Get the factor by which the level of refinement changes the cell weight (see DMForestSetCellWeights()) when calculating partitions. The final weight of a cell will be (cellWeight) * (weightFactor^refinementLevel). A factor of 1 indicates that the weight of a cell does not depend on its level; a factor of 2, for example, might be appropriate for sub-cycling time-stepping methods, when the computation associated with a cell is multiplied by a factor of 2 for each additional level of refinement.
Synopsis
#include "petscdmforest.h"
#include "petscdm.h"
PetscErrorCode DMForestGetCellWeightFactor(DM dm, PetscReal *weightsFactor)
Not collective
Input Parameter
dm -the forest
Output Parameter
weightsFactors -default 1.
See Also
DMForestSetCellWeightFactor(), DMForestSetCellWeights()
Level:advanced
Location:src/dm/impls/forest/forest.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages