PETSc version 3.15.5
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# SNESLineSearchSetComputeNorms

Turns on or off the computation of final norms in the line search.

### Synopsis

    #include "petscsnes.h"
    PetscErrorCode SNESLineSearchSetComputeNorms(SNESLineSearch linesearch, PetscBool flg)

### Input Parameters

| linesearch | - linesearch context
| flg | - indicates whether or not to compute norms

### Options Database Keys

| -snes_linesearch_norms <true> | - Turns on/off computation of the norms for basic linesearch

### Notes

This is most relevant to the SNESLINESEARCHBASIC line search type since most line searches have a stopping criteria involving the norm.

### See Also

SNESLineSearchGetNorms(), SNESLineSearchSetNorms(), SNESLineSearchComputeNorms(), SNESLINESEARCHBASIC

### Level

intermediate

### Location

src/snes/linesearch/interface/linesearch.c
Index of all SNES routines
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