f1dim_mod Module Reference

Module containing Fletcher-Reeves (non-linear Conjugate Gradient) routines including linear search algorithm. More...

Functions/Subroutines
real(dp) function	f1dim (x)
	One-dimension function used by linmin, passed to mnbrak/brent to find minimum for line search.
subroutine	fletcher_reeves (p, ftol, iter, fret, n)
	Fletcher-Reeves-Polak-Ribiere minimization.
real(dp) function	wfunc (p)
	Function to compute the MHD energy used in line search.
real(dp) function, dimension(size(p))	dfunc (p)
	Function to compute gradient of MHD energy.
subroutine	linmin (p, xi, fret)
	Routine to find minimum of func along a given direction xi from point p.
subroutine	mnbrak (ax, bx, cx, fa, fb, fc, func)
	Routine to bracket the minimum of func in the downhill direction.
real(dp) function	brent (ax, bx, cx, func, tol, xmin)
	Isolates the minimum of func.
subroutine	swap (a, b)
	Swaps a,b => b,a.
subroutine	shft (a, b, c, d)
	Shifts a=b, b=c, c=d.

Variables
integer	ncom
real(dp), dimension(:), pointer	pcom
real(dp), dimension(:), pointer	xicom

Detailed Description

Module containing Fletcher-Reeves (non-linear Conjugate Gradient) routines including linear search algorithm.