CG2 Class Reference

the conjugate gradient inverter More...

#include <fermiqcd_cg_inverter.h>

List of all members.

Static Public Member Functions
template<class fieldT , class fieldG >
static inversion_stats	inverter (fieldT &psi_out, fieldT &psi_in, fieldG &U, coefficients &coeff, mdp_real absolute_precision=mdp_precision, mdp_real relative_precision=0, int max_steps=2000, bool qdaggerq=false)

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Detailed Description

the conjugate gradient inverter

It inverts mul_Q(psi_out,psi_in,U,coeff) ///not really

Parameters:

	psi_out	the output field passed by reference
	psi_in	the input field passed by reference
	U	the gauge field to be passed to mul_Q
	coeff	the gauge parameters to be passed to mul_Q
	absolute_precision	the target absolute precision
	relative_precision	the target relative precision
	max_steps	the maximum number of steps

Example:

/// gauge_field U(lattice,nc);
/// fermi_field psi(lattice,nc);
/// fermi_field chi(lattice,nc);
/// coefficinets coeff;
/// coeff["kappa"]=1.12;
/// U.load("myfield");
/// psi.load("myfield_psi");
/// CG2::inverter(chi,psi,U,coeff);
/// chi.save("myfield_chi");
/// 

Note that mul_invQ(chi,psi,U,coeff) reads

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Member Function Documentation

template<class fieldT , class fieldG >

static inversion_stats CG2::inverter	(	fieldT &	psi_out,
		fieldT &	psi_in,
		fieldG &	U,
		coefficients &	coeff,
		mdp_real	absolute_precision = mdp_precision,
		mdp_real	relative_precision = 0,
		int	max_steps = 2000,
		bool	qdaggerq = false
	)			[inline, static]

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The documentation for this class was generated from the following file:

• /Users/mdipierro/fermiqcd/development/Libraries/fermiqcd_cg_inverter.h