petsc-3.12.5 2020-03-29

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" 
#include "petscdmlabel.h" 
PetscErrorCode DMForestGetCellWeightFactor(DM dm, PetscReal *weightsFactor)

Not collective

Input Parameter

dm -the forest

Output Parameter

weightsFactors -default 1.

Level

advanced

Location