petsc-3.10.5 2019-03-28
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# SNESLineSearchCreate

Creates the line search context.

### Synopsis

    #include "petscsnes.h"
    PetscErrorCode SNESLineSearchCreate(MPI_Comm comm, SNESLineSearch *outlinesearch)

Logically Collective on Comm

### Input Parameters

comm -MPI communicator for the line search (typically from the associated SNES context).

### Output Parameters

outlinesearch -the new linesearch context

### Notes

The preferred calling sequence for users is to use SNESGetLineSearch() to acquire the SNESLineSearch instance already associated with the SNES. This function is for developer use.

### Keywords

LineSearch, create, context

### See Also

LineSearchDestroy(), SNESGetLineSearch()

### Level

developer

### Location

src/snes/linesearch/interface/linesearch.c

### Implementations

SNESLineSearchCreate_NCGLinear in src/snes/impls/ncg/snesncg.c
SNESLineSearchCreate_Basic in src/snes/linesearch/impls/basic/linesearchbasic.c
SNESLineSearchCreate_BT in src/snes/linesearch/impls/bt/linesearchbt.c
SNESLineSearchCreate_CP in src/snes/linesearch/impls/cp/linesearchcp.c
SNESLineSearchCreate_L2 in src/snes/linesearch/impls/l2/linesearchl2.c
SNESLineSearchCreate_NLEQERR in src/snes/linesearch/impls/nleqerr/linesearchnleqerr.c
SNESLineSearchCreate_Shell in src/snes/linesearch/impls/shell/linesearchshell.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages