petsc-3.8.4 2018-03-24
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DMCreateInterpolationScale

 Forms L = R*1/diag(R*1) - L.*v is like a coarse grid average of the nearby fine grid points.

Synopsis

#include "petscdmda.h"   
PetscErrorCode  DMCreateInterpolationScale(DM dac,DM daf,Mat mat,Vec *scale)

Input Parameters

dac - DM that defines a coarse mesh
daf - DM that defines a fine mesh
mat - the restriction (or interpolation operator) from fine to coarse

Output Parameter

scale -the scaled vector

See Also

DMCreateInterpolation()

Level:developer
Location:src/dm/impls/da/dainterp.c
Index of all DMDA routines
Table of Contents for all manual pages
Index of all manual pages