petsc-3.14.6 2021-03-30
TSErrorWeightedNorm
compute a weighted norm of the difference between two state vectors based on supplied absolute and relative tolerances
Synopsis
#include "petscts.h"
PetscErrorCode TSErrorWeightedNorm(TS ts,Vec U,Vec Y,NormType wnormtype,PetscReal *norm,PetscReal *norma,PetscReal *normr)
Collective on TS
Input Arguments
| ts | - time stepping context
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| U | - state vector, usually ts->vec_sol
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| Y | - state vector to be compared to U
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| wnormtype | - norm type, either NORM_2 or NORM_INFINITY
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Output Arguments
| norm | - weighted norm, a value of 1.0 achieves a balance between absolute and relative tolerances
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| norma | - weighted norm, a value of 1.0 means that the error meets the absolute tolerance set by the user
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| 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
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See Also
TSErrorWeightedNormInfinity(), TSErrorWeightedNorm2(), TSErrorWeightedENorm
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