petsc-3.11.1 2019-04-12
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TSErrorWeightedENorm

compute a weighted error norm based on supplied absolute and relative tolerances

Synopsis

#include "petscts.h"  
PetscErrorCode TSErrorWeightedENorm(TS ts,Vec E,Vec U,Vec Y,NormType wnormtype,PetscReal *norm,PetscReal *norma,PetscReal *normr)
Collective on TS

Input Arguments

ts - time stepping context
E - error vector
U - state vector, usually ts->vec_sol
Y - state vector, previous time step
wnormtype - norm type, either NORM_2 or NORM_INFINITY

Output Arguments

norm -weighted norm, a value of 1.0 achieves a balance between absolute and relative tolerances
norma -weighted norm, a value of 1.0 means that the error meets the absolute tolerance set by the user
normr -weighted norm, a value of 1.0 means that the error meets the relative tolerance set by the user

Options Database Keys

-ts_adapt_wnormtype <wnormtype> -2, INFINITY

See Also

TSErrorWeightedENormInfinity(), TSErrorWeightedENorm2(), TSErrorWeightedNormInfinity(), TSErrorWeightedNorm2()

Level

developer

Location

src/ts/interface/ts.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages