DMPlexComputeL2DiffLocal#
This function computes the L_2 difference between a function u and an FEM interpolant solution u_h.
Synopsis#
#include "petscdmplex.h"   
PetscErrorCode DMPlexComputeL2DiffLocal(DM dm, PetscReal time, PetscErrorCode (**funcs)(PetscInt, PetscReal, const PetscReal[], PetscInt, PetscScalar *, void *), void **ctxs, Vec localX, PetscReal *diff)
Collective
Input Parameters#
- dm - The - DM
- time - The time 
- funcs - The functions to evaluate for each field component 
- ctxs - Optional array of contexts to pass to each function, or - NULL.
- localX - The coefficient vector u_h, a local vector 
Output Parameter#
- diff - The diff ||u - u_h||_2 
See Also#
DMPlex: Unstructured Grids, DM, DMPLEX, DMProjectFunction(), DMComputeL2FieldDiff(), DMComputeL2GradientDiff()
Level#
developer
Location#
Index of all DMPlex routines
Table of Contents for all manual pages
Index of all manual pages