SNESLineSearchType

String with the name of a PETSc line search method SNESLineSearch

Synopsis

typedef const char *SNESLineSearchType;
#define SNESLINESEARCHBT        "bt"
#define SNESLINESEARCHNLEQERR   "nleqerr"
#define SNESLINESEARCHBASIC     "basic"
#define SNESLINESEARCHNONE      "none"
#define SNESLINESEARCHL2        "l2"
#define SNESLINESEARCHCP        "cp"
#define SNESLINESEARCHSHELL     "shell"
#define SNESLINESEARCHNCGLINEAR "ncglinear"

Values

• SNESLINESEARCHBASIC - (or equivalently SNESLINESEARCHNONE) Simple damping line search, defaults to using the full Newton step

• SNESLINESEARCHBT - Backtracking line search over the L2 norm of the function

• SNESLINESEARCHL2 - Secant line search over the L2 norm of the function

• SNESLINESEARCHCP - Critical point secant line search assuming F(x) = grad G(x) for some unknown G(x)

• SNESLINESEARCHNLEQERR - Affine-covariant error-oriented linesearch

• SNESLINESEARCHSHELL - User provided SNESLineSearch implementation

See Also

SNES: Nonlinear Solvers, SNESLineSearch, SNESLineSearchSetType(), SNES

Level

beginner

Location

include/petscsnes.h

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Index of all SNES routines
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Index of all manual pages