arpacktools.hpp File Reference

#include "typedefs.hpp"

Include dependency graph for arpacktools.hpp:

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Namespaces
namespace	belfem
	USER GUIDES:
namespace	belfem::arpack

Functions
void	belfem::arpack::arpack_standard_eigen (const int_t *n, const int_t *nnz, const real *values, const int_t *indices, const int_t *pointers, const int_t *job, const int_t *nev, const int_t *ncvmin, const real *tol, const int_t *maxit, const real *sigma, real *lambdareal, real *lambdaimag, int_t *info)
	serial reverse communication driver around dnaupd / dneupd.
void	belfem::arpack::arpack_symmetric_eigen (const int_t *n, const int_t *nnz, const real *values, const int_t *indices, const int_t *pointers, const int_t *job, const int_t *nev, const int_t *ncvmin, const real *tol, const int_t *maxit, const real *sigma, real *lambdareal, real *lambdaimag, int_t *info)
	symmetric counterpart of arpack_standard_eigen: dsaupd / dseupd instead of dnaupd / dneupd.
void	belfem::arpack::arpack_si_step (int_t *ido, const int_t *n, const int_t *nev, const int_t *ncv, real *tol, real *resid, real *vectors, const int_t *ldv, int_t *iparam, int_t *ipntr, real *workd, real *workl, const int_t *lworkl, int_t *info)
	ONE step of a shift-invert ( mode 3 ) reverse-communication loop.
void	belfem::arpack::arpack_si_extract (const real *sigma, const int_t *n, const int_t *nev, const int_t *ncv, real *tol, real *resid, real *vectors, const int_t *ldv, int_t *iparam, int_t *ipntr, real *workd, real *workl, const int_t *lworkl, real *lambdareal, int_t *info)
	extract the eigenvalues after arpack_si_step returned ido = 99.
void	belfem::arpack::check_naupd (const int_t aInfo)
	decode the dnaupd / pdnaupd flag, info( gInfoNaupd ).
void	belfem::arpack::check_neupd (const int_t aInfo)
	decode the dneupd flag, info( gInfoNeupd ).
void	belfem::arpack::check_saupd (const int_t aInfo)
	decode the dsaupd / pdsaupd flag, info( gInfoNaupd ).
void	belfem::arpack::check_seupd (const int_t aInfo)
	decode the dseupd / pdseupd flag, info( gInfoNeupd ).

Variables
constexpr index_t	belfem::arpack::gNumInfoEntries = 7
constexpr index_t	belfem::arpack::gInfoNaupd = 0
	index of the dnaupd flag within that array
constexpr index_t	belfem::arpack::gInfoNeupd = 1
	index of the dneupd flag within that array
constexpr index_t	belfem::arpack::gInfoNumConverged = 2
	index of the number of converged Ritz values
constexpr index_t	belfem::arpack::gInfoNumIterations = 3
	index of the number of restart iterations taken
constexpr index_t	belfem::arpack::gInfoNumOperations = 4
	index of the number of OP*x operations
constexpr index_t	belfem::arpack::gInfoNumReorthogonalizations = 5
	index of the number of re-orthogonalizations
constexpr index_t	belfem::arpack::gInfoSubspaceSize = 6
	index of the Krylov subspace size actually used