DragonFly On-Line Manual Pages

Search: Section:  


sc::MCSearch(3)                      MPQC                      sc::MCSearch(3)

NAME

sc::MCSearch - This performs line searches with cubic steps.

SYNOPSIS

#include <mcsearch.h> Inherits sc::LineOpt. Public Member Functions MCSearch (const Ref< KeyVal > &) The MCSearch KeyVal CTOR does not read any input. int update () Take a step. void init (RefSCVector &direction) Initializes the line search object. void init (RefSCVector &direction, Ref< Function > function) Initializes the line search object. Protected Member Functions void mcstep (double *stx, double *fx, double *dx, double *sty, double *fy, double *dy, double *stp, double *fp, double *dp, bool *brackt, double *stpmin, double *stpmax, int *info) void mcsrch (int *n, double *x, double *f, double *g, double *s, double *stp, double *ftol, double *xtol, int *maxfev, int *info, int *nfev, double *wa) void mcinit () Protected Attributes double gtol_ double stpmin_ double stpmax_ double dg double fm double fx double fy double dgm double dgx double dgy double fxm double fym double stx double sty double dgxm double dgym int infoc double finit double width double stmin double stmax bool stage1 double width1 double ftest1 bool brackt double dginit double dgtest double p double q double r__ double s double sgnd double stpc double stpf double stpq double gamma double theta bool bound int info_ auto_vec< double > wa_ Additional Inherited Members Detailed Description This performs line searches with cubic steps. It is based on the Fortran MCSRCH and MCSTEP routines produced by: Argonne National Laboratory. MINPACK Project. June 1983 Jorge J. More', David J. Thuente. Constructor & Destructor Documentation sc::MCSearch::MCSearch (const Ref< KeyVal > &) The MCSearch KeyVal CTOR does not read any input. See the LineOpt KeyVal CTOR for parameters that it takes. Member Function Documentation void sc::MCSearch::init (RefSCVector & direction) [virtual] Initializes the line search object. Argument is a search direction. Use of this method assumes the Optimize base class already has a function object (got it from a keyval or elsewhere). Reimplemented from sc::LineOpt. void sc::MCSearch::init (RefSCVector & direction, Ref< Function > function) [virtual] Initializes the line search object. First argument is a search direction, second argument is a function object to optimize. Use this method when a function must be passed to the Optimize base class. Reimplemented from sc::LineOpt. int sc::MCSearch::update () [virtual] Take a step. Returns 1 if the optimization has converged, otherwise 0. Implements sc::Optimize. Author Generated automatically by Doxygen for MPQC from the source code. Version 2.3.1 Fri Feb 19 2016 sc::MCSearch(3)

Search: Section: