src Directory Reference

Files
file	basefn.f90
	Polynomials evaluation.
file	bfield.f90
	Returns \(\dot s \equiv B^s / B^\zeta\) and \(\dot \theta \equiv B^\theta / B^\zeta\).
file	bnorml.f90
	Computes \({\bf B}_{Plasma} \cdot {\bf e}_\theta \times {\bf e}_\zeta \;\) on the computational boundary, \(\partial {\cal D}\).
file	brcast.f90
	Broadcasts Beltrami fields, profiles, . . .
file	casing.f90
	Constructs the field created by the plasma currents, at an arbitrary, external location using virtual casing.
file	coords.f90
	Calculates coordinates, \({\bf x}(s,\theta,\zeta) \equiv R \, {\bf e}_R + Z \, {\bf e}_Z\), and metrics, using FFTs.
file	curent.f90
	Computes the plasma current, \(I \equiv \int B_\theta \, d\theta\), and the "linking" current, \(G \equiv \int B_\zeta \, d\zeta\).
file	df00ab.f90
	Evaluates volume integrals, and their derivatives w.r.t. interface geometry, using "packed" format.
file	dforce.f90
	Calculates \({\bf F}({\bf x})\), where \({\bf x} \equiv \{\mbox{geometry}\} \equiv \{ R_{i,v}, Z_{i,v}\}\) and \({\bf F}\equiv[[p+B^2/2]] + \{\mbox{spectral constraints}\} \), and \(\nabla {\bf F}\).
file	dfp100.f90
	Split the work between MPI nodes and evaluate the global constraint.
file	dfp200.f90
	Given the field consistent with the constraints and the geometry, computes local quantites related to the force evaluation.
file	global.f90
	Defines input namelists and global variables, and opens some output files.
file	hesian.f90
	Computes eigenvalues and eigenvectors of derivative matrix, \(\nabla_{\bf xi}{\bf F}\).
file	inputlist.f90
	Input namelists.
file	intghs.f90
	Calculates volume integrals of Chebyshev-polynomials and covariant field for Hessian computation.
file	jo00aa.f90
	Measures error in Beltrami equation, \(\nabla \times {\bf B} - \mu {\bf B}\).
file	lforce.f90
	Computes \(B^2\), and the spectral condensation constraints if required, on the interfaces, \({\cal I}_i\).
file	ma00aa.f90
	Calculates volume integrals of Chebyshev polynomials and metric element products.
file	ma02aa.f90
	Constructs Beltrami field in given volume consistent with flux, helicity, rotational-transform and/or parallel-current constraints.
file	matrix.f90
	Constructs energy and helicity matrices that represent the Beltrami linear system.
file	memory.f90
	memory management module
file	metrix.f90
	Calculates the metric quantities, \(\sqrt g \, g^{\mu\nu}\), which are required for the energy and helicity integrals.
file	mp00ac.f90
	Solves Beltrami/vacuum (linear) system, given matrices.
file	mtrxhs.f90
	Constructs matrices that represent the Beltrami linear system, matrix-free.
file	newton.f90
	Employs Newton method to find \({\bf F}({\bf x})=0\), where \({\bf x}\equiv\{\mathrm{geometry}\}\) and \({\bf F}\) is defined in dforce() .
file	packab.f90
	Packs, and unpacks, Beltrami field solution vector; \({\bf a}\equiv\{A_{\theta,e,i,l}, A_{\zeta,e,i,l}, \mathrm{etc.}\}\).
file	packxi.f90
	Packs, and unpacks, geometrical degrees of freedom; and sets coordinate axis.
file	pc00aa.f90
	Use preconditioned conjugate gradient method to find minimum of energy functional.
file	pc00ab.f90
	Returns the energy functional and it's derivatives with respect to geometry.
file	pp00aa.f90
	Constructs Poincaré plot and "approximate" rotational-transform (driver).
file	pp00ab.f90
	Follows magnetic fieldline using ode-integration routine from rksuite.f .
file	preset.f90
	Allocates and initializes internal arrays.
file	ra00aa.f90
	Writes vector potential to .ext.sp.A .
file	rzaxis.f90
	The coordinate axis is assigned via a poloidal average over an arbitrary surface.
file	sphdf5.f90
	Writes all the output information to ext.sp.h5.
file	spsint.f90
	Calculates volume integrals of Chebyshev-polynomials and metric elements for preconditioner.
file	spsmat.f90
	Constructs matrices for the precondtioner.
file	stzxyz.f90
	Calculates coordinates, \({\bf x}(s,\theta,\zeta) \equiv R \, {\bf e}_R + Z \, {\bf e}_Z\), and metrics, at given \((s,\theta,\zeta)\).
file	tr00ab.f90
	Calculates rotational transform given an arbitrary tangential field.
file	volume.f90
	Computes volume of each region; and, if required, the derivatives of the volume with respect to the interface geometry.
file	wa00aa.f90
	Constructs smooth approximation to wall.
file	xspech.f90
	Main program.