quda::GCR Class Reference

#include <invert_quda.h>

Inheritance diagram for quda::GCR:

Collaboration diagram for quda::GCR:

Public Member Functions
	GCR (DiracMatrix &mat, DiracMatrix &matSloppy, DiracMatrix &matPrecon, SolverParam &param, TimeProfile &profile)
	GCR (DiracMatrix &mat, Solver &K, DiracMatrix &matSloppy, DiracMatrix &matPrecon, SolverParam &param, TimeProfile &profile)
virtual	~GCR ()
void	operator() (ColorSpinorField &out, ColorSpinorField &in)
Public Member Functions inherited from quda::Solver
	Solver (SolverParam &param, TimeProfile &profile)
virtual	~Solver ()
virtual void	blocksolve (ColorSpinorField &out, ColorSpinorField &in)
bool	convergence (double r2, double hq2, double r2_tol, double hq_tol)
bool	convergenceHQ (double r2, double hq2, double r2_tol, double hq_tol)
	Test for HQ solver convergence – ignore L2 residual. More...
bool	convergenceL2 (double r2, double hq2, double r2_tol, double hq_tol)
	Test for L2 solver convergence – ignore HQ residual. More...
void	PrintStats (const char *name, int k, double r2, double b2, double hq2)
	Prints out the running statistics of the solver (requires a verbosity of QUDA_VERBOSE) More...
void	PrintSummary (const char *name, int k, double r2, double b2, double r2_tol, double hq_tol)
	Prints out the summary of the solver convergence (requires a verbosity of QUDA_SUMMARIZE). Assumes SolverParam.true_res and SolverParam.true_res_hq has been set. More...
void	constructDeflationSpace (const ColorSpinorField &meta, const DiracMatrix &mat, bool svd)
	Constructs the deflation space. More...
virtual double	flops () const

Private Attributes
const DiracMatrix &	mat
const DiracMatrix &	matSloppy
const DiracMatrix &	matPrecon
Solver *	K
SolverParam	Kparam
int	nKrylov
Complex *	alpha
Complex **	beta
double *	gamma
bool	init
ColorSpinorField *	rp
ColorSpinorField *	yp
	residual vector More...
ColorSpinorField *	tmpp
	high precision accumulator More...
ColorSpinorField *	y_sloppy
	temporary for mat-vec More...
ColorSpinorField *	r_sloppy
	sloppy solution vector More...
std::vector< ColorSpinorField * >	p
	sloppy residual vector More...
std::vector< ColorSpinorField * >	Ap

Additional Inherited Members
Static Public Member Functions inherited from quda::Solver
static Solver *	create (SolverParam &param, DiracMatrix &mat, DiracMatrix &matSloppy, DiracMatrix &matPrecon, TimeProfile &profile)
static double	stopping (double tol, double b2, QudaResidualType residual_type)
	Set the solver L2 stopping condition. More...
Public Attributes inherited from quda::Solver
EigenSolver *	eig_solve
bool	deflate_init = false
std::vector< ColorSpinorField * >	defl_tmp1
std::vector< ColorSpinorField * >	defl_tmp2
Protected Attributes inherited from quda::Solver
SolverParam &	param
TimeProfile &	profile
int	node_parity

Detailed Description

Definition at line 816 of file invert_quda.h.

Constructor & Destructor Documentation

GCR() [1/2]

quda::GCR::GCR	(	DiracMatrix &	mat,
		DiracMatrix &	matSloppy,
		DiracMatrix &	matPrecon,
		SolverParam &	param,
		TimeProfile &	profile
	)

Definition at line 163 of file inv_gcr_quda.cpp.

References alpha, Ap, beta, errorQuda, quda::fillInnerSolveParam(), gamma, quda::SolverParam::inv_type_precondition, K, Kparam, nKrylov, p, QUDA_BICGSTAB_INVERTER, QUDA_CA_GCR_INVERTER, QUDA_CG_INVERTER, QUDA_INVALID_INVERTER, QUDA_MR_INVERTER, and QUDA_SD_INVERTER.

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GCR() [2/2]

quda::GCR::GCR	(	DiracMatrix &	mat,
		Solver &	K,
		DiracMatrix &	matSloppy,
		DiracMatrix &	matPrecon,
		SolverParam &	param,
		TimeProfile &	profile
	)

Parameters

K	Preconditioner

Definition at line 196 of file inv_gcr_quda.cpp.

References alpha, Ap, beta, gamma, nKrylov, and p.

~GCR()

quda::GCR::~GCR ( )

virtual

Definition at line 211 of file inv_gcr_quda.cpp.

References alpha, Ap, beta, quda::Solver::defl_tmp1, quda::Solver::defl_tmp2, quda::Solver::deflate_init, quda::SolverParam::evecs, gamma, init, quda::SolverParam::inv_type_precondition, K, nKrylov, p, quda::Solver::param, quda::LatticeField::Precision(), quda::SolverParam::precision_sloppy, quda::Solver::profile, QUDA_MG_INVERTER, quda::QUDA_PROFILE_FREE, r_sloppy, rp, tmpp, quda::SolverParam::use_sloppy_partial_accumulator, y_sloppy, and yp.

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Member Function Documentation

operator()()

void quda::GCR::operator() ( ColorSpinorField &  out, ColorSpinorField &  in  )

virtual

Implements quda::Solver.

Definition at line 241 of file inv_gcr_quda.cpp.

References alpha, Ap, quda::blas::axpy(), beta, quda::blas::cabxpyzAxNorm(), quda::blas::cDotProductNormA(), quda::SolverParam::compute_null_vector, quda::SolverParam::compute_true_res, quda::Solver::constructDeflationSpace(), quda::Solver::convergence(), quda::blas::copy(), quda::ColorSpinorParam::create, quda::ColorSpinorField::Create(), csParam, quda::Solver::defl_tmp1, quda::Solver::defl_tmp2, quda::SolverParam::deflate, quda::Solver::deflate_init, quda::EigenSolver::deflateSVD(), quda::SolverParam::delta, quda::Solver::eig_solve, errorQuda, quda::SolverParam::evals, quda::SolverParam::evecs, quda::DiracMatrix::Expose(), quda::blas::flops, quda::Solver::flops(), quda::DiracMatrix::flops(), gamma, getVerbosity(), quda::SolverParam::gflops, quda::blas::HeavyQuarkResidualNorm(), init, quda::SolverParam::iter, K, quda::TimeProfile::Last(), mat, matPrecon, matSloppy, quda::SolverParam::max_res_increase, quda::SolverParam::max_res_increase_total, quda::SolverParam::maxiter, nKrylov, quda::blas::norm2(), quda::orthoDir(), p, quda::Solver::param, pipeline, quda::SolverParam::pipeline, popVerbosity(), quda::LatticeField::Precision(), quda::SolverParam::precision_sloppy, quda::SolverParam::preserve_source, printfQuda, quda::Solver::PrintStats(), quda::Solver::PrintSummary(), quda::Solver::profile, pushVerbosity(), QUDA_COMPUTE_NULL_VECTOR_NO, QUDA_CPU_FIELD_LOCATION, QUDA_DEBUG_VERBOSE, QUDA_HEAVY_QUARK_RESIDUAL, QUDA_NULL_FIELD_CREATE, QUDA_PRESERVE_SOURCE_NO, quda::QUDA_PROFILE_COMPUTE, quda::QUDA_PROFILE_EPILOGUE, quda::QUDA_PROFILE_FREE, quda::QUDA_PROFILE_INIT, quda::QUDA_PROFILE_PREAMBLE, QUDA_SUMMARIZE, QUDA_USE_INIT_GUESS_NO, QUDA_USE_INIT_GUESS_YES, QUDA_VERBOSE, r_sloppy, quda::SolverParam::residual_type, rp, quda::SolverParam::secs, quda::ColorSpinorParam::setPrecision(), quda::SolverParam::sloppy_converge, quda::sqrt(), quda::Solver::stopping(), tmp, tmpp, quda::SolverParam::tol, quda::SolverParam::tol_hq, quda::SolverParam::true_res, quda::SolverParam::true_res_hq, quda::updateSolution(), quda::SolverParam::use_init_guess, quda::SolverParam::use_sloppy_partial_accumulator, quda::SolverParam::verbosity_precondition, warningQuda, quda::blas::xmyNorm(), quda::blas::xpy(), y_sloppy, yp, and quda::blas::zero().

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Member Data Documentation

alpha

Complex* quda::GCR::alpha

private

Definition at line 831 of file invert_quda.h.

Referenced by GCR(), operator()(), and ~GCR().

Ap

std::vector<ColorSpinorField*> quda::GCR::Ap

private

Definition at line 847 of file invert_quda.h.

Referenced by GCR(), operator()(), and ~GCR().

beta

Complex** quda::GCR::beta

private

Definition at line 832 of file invert_quda.h.

Referenced by GCR(), operator()(), and ~GCR().

gamma

double* quda::GCR::gamma

private

Definition at line 833 of file invert_quda.h.

Referenced by GCR(), operator()(), and ~GCR().

init

bool quda::GCR::init

private

Solver uses lazy allocation: this flag to determine whether we have allocated.

Definition at line 838 of file invert_quda.h.

Referenced by operator()(), and ~GCR().

K

Solver* quda::GCR::K

private

Definition at line 823 of file invert_quda.h.

Referenced by GCR(), operator()(), and ~GCR().

Kparam

SolverParam quda::GCR::Kparam

private

Definition at line 824 of file invert_quda.h.

Referenced by GCR().

mat

const DiracMatrix& quda::GCR::mat

private

Definition at line 819 of file invert_quda.h.

Referenced by operator()().

matPrecon

const DiracMatrix& quda::GCR::matPrecon

private

Definition at line 821 of file invert_quda.h.

Referenced by operator()().

matSloppy

const DiracMatrix& quda::GCR::matSloppy

private

Definition at line 820 of file invert_quda.h.

Referenced by operator()().

nKrylov

int quda::GCR::nKrylov

private

The size of the Krylov space that GCR uses

Definition at line 829 of file invert_quda.h.

Referenced by GCR(), operator()(), and ~GCR().

p

std::vector<ColorSpinorField*> quda::GCR::p

private

sloppy residual vector

Definition at line 846 of file invert_quda.h.

Referenced by GCR(), operator()(), and ~GCR().

r_sloppy

ColorSpinorField* quda::GCR::r_sloppy

private

sloppy solution vector

Definition at line 844 of file invert_quda.h.

Referenced by operator()(), and ~GCR().

rp

ColorSpinorField* quda::GCR::rp

private

Definition at line 840 of file invert_quda.h.

Referenced by operator()(), and ~GCR().

tmpp

ColorSpinorField* quda::GCR::tmpp

private

high precision accumulator

Definition at line 842 of file invert_quda.h.

Referenced by operator()(), and ~GCR().

y_sloppy

ColorSpinorField* quda::GCR::y_sloppy

private

temporary for mat-vec

Definition at line 843 of file invert_quda.h.

Referenced by operator()(), and ~GCR().

yp

ColorSpinorField* quda::GCR::yp

private

residual vector

Definition at line 841 of file invert_quda.h.

Referenced by operator()(), and ~GCR().

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

• include/invert_quda.h
• lib/inv_gcr_quda.cpp