arnoldi_api.F File Reference

#include "../base/base_uses.f90"

Go to the source code of this file.

Modules
module	arnoldi_api
	arnoldi iteration using dbcsr

Functions/Subroutines
subroutine, public	arnoldi_api::arnoldi_ev (matrix, arnoldi_env)
	Driver routine for different arnoldi eigenvalue methods the selection which one is to be taken is made beforehand in the setup call passing the generalized_ev flag or not.
subroutine, public	arnoldi_api::arnoldi_extremal (matrix_a, max_ev, min_ev, converged, threshold, max_iter)
	simple wrapper to estimate extremal eigenvalues with arnoldi, using the old lanczos interface this hides some of the power of the arnoldi routines (e.g. only min or max eval, generalized eval, ritz vectors, etc.), and does not allow for providing an initial guess of the ritz vector.
subroutine, public	arnoldi_api::arnoldi_conjugate_gradient (matrix_a, vec_x, matrix_p, converged, threshold, max_iter)
	Wrapper for conjugated gradient algorithm for Ax=b.