DMComputeError#
Computes the error assuming the user has provided the exact solution functions
Synopsis#
#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMComputeError(DM dm, Vec sol, PetscReal errors[], Vec *errorVec)
Collective
Input Parameters#
- dm - The - DM
- sol - The solution vector 
Input/Output Parameter#
- errors - An array of length Nf, the number of fields, or - NULLfor no output; on output contains the error in each field
Output Parameter#
- errorVec - A vector to hold the cellwise error (may be - NULL)
Note#
The exact solutions come from the PetscDS object, and the time comes from DMGetOutputSequenceNumber().
See Also#
DM Basics, DM, DMMonitorSet(), DMGetRegionNumDS(), PetscDSGetExactSolution(), DMGetOutputSequenceNumber()
Level#
developer
Location#
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages