petsc-master 2019-05-21
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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.

See Also

DMForestSetCellWeightFactor(), DMForestSetCellWeights()

Level

advanced

Location

src/dm/impls/forest/forest.c
Index of all DMFOREST routines
Table of Contents for all manual pages
Index of all manual pages