eigenLanczos()

template<typename Vector , typename Matrix , typename... Pars>

IterativeExit syten::Krylov::eigenLanczos ( Vector &&  vec, Matrix const &  mat, IterativeConfig const &  conf, Vector &  evec  )

inline

eigenLanczos shorthand for a Lanczos eigen-solver

Parameters

vec	the initial vector
mat	the matrix to solve
conf	the parameters for the iteration
evec	lowest eigenvector

Returns

info on the execution of the Lanczos routine (number of iterations, exit code)

References syten::IterativeExit::value.

Referenced by syten::Pyten::init_eigensolver(), syten::T3N::DMRG::Run::solve2SitePhysicalBranching(), syten::T3N::DMRG::Run::solveBranching(), and syten::T3N::DMRG::Run::solveContractionWithBranching().

Here is the caller graph for this function: