gep_dm.h File Reference

This file contains distributed memory interface functions for generalized eigenvalue problems. More...

#include <starneig/configuration.h>
#include <starneig/error.h>
#include <starneig/expert.h>
#include <starneig/distr_matrix.h>

Go to the source code of this file.

Functions
Computational functions
starneig_error_t	starneig_GEP_DM_HessenbergTriangular (starneig_distr_matrix_t A, starneig_distr_matrix_t B, starneig_distr_matrix_t Q, starneig_distr_matrix_t Z)
	Computes a Hessenberg-triangular decomposition of a general matrix pencil. More...
starneig_error_t	starneig_GEP_DM_Schur (starneig_distr_matrix_t H, starneig_distr_matrix_t R, starneig_distr_matrix_t Q, starneig_distr_matrix_t Z, double real[], double imag[], double beta[])
	Computes a generalized Schur decomposition given a Hessenberg-triangular decomposition. More...
starneig_error_t	starneig_GEP_DM_ReorderSchur (int selected[], starneig_distr_matrix_t S, starneig_distr_matrix_t T, starneig_distr_matrix_t Q, starneig_distr_matrix_t Z, double real[], double imag[], double beta[])
	Reorders selected generalized eigenvalues to the top left corner of a generalized Schur decomposition. More...
starneig_error_t	starneig_GEP_DM_Reduce (starneig_distr_matrix_t A, starneig_distr_matrix_t B, starneig_distr_matrix_t Q, starneig_distr_matrix_t Z, double real[], double imag[], double beta[], int(*predicate)(double real, double imag, double beta, void *arg), void *arg, int selected[], int *num_selected)
	Computes a (reordered) generalized Schur decomposition given a general matrix pencil. More...
starneig_error_t	starneig_GEP_DM_Eigenvectors (int selected[], starneig_distr_matrix_t S, starneig_distr_matrix_t T, starneig_distr_matrix_t Z, starneig_distr_matrix_t X)
	Computes a generalized eigenvector for each selected generalized eigenvalue. More...
Helper functions
starneig_error_t	starneig_GEP_DM_Select (starneig_distr_matrix_t S, starneig_distr_matrix_t T, int(*predicate)(double real, double imag, double beta, void *arg), void *arg, int selected[], int *num_selected)
	Generates a selection array for a Schur-triangular matrix pencil using a user-supplied predicate function. More...
Expert computational functions
starneig_error_t	starneig_GEP_DM_Schur_expert (struct starneig_schur_conf *conf, starneig_distr_matrix_t H, starneig_distr_matrix_t R, starneig_distr_matrix_t Q, starneig_distr_matrix_t Z, double real[], double imag[], double beta[])
	Computes a generalized Schur decomposition given a Hessenberg-triangular decomposition. More...
starneig_error_t	starneig_GEP_DM_ReorderSchur_expert (struct starneig_reorder_conf *conf, int selected[], starneig_distr_matrix_t S, starneig_distr_matrix_t T, starneig_distr_matrix_t Q, starneig_distr_matrix_t Z, double real[], double imag[], double beta[])
	Reorders selected generalized eigenvalues to the top left corner of a generalized Schur decomposition. More...
starneig_error_t	starneig_GEP_DM_Eigenvectors_expert (struct starneig_eigenvectors_conf *conf, int selected[], starneig_distr_matrix_t S, starneig_distr_matrix_t T, starneig_distr_matrix_t Z, starneig_distr_matrix_t X)
	Computes a generalized eigenvector for each selected generalized eigenvalue. More...

Detailed Description

This file contains distributed memory interface functions for generalized eigenvalue problems.

Author

Mirko Myllykoski (mirko.nosp@m.m@cs.nosp@m..umu..nosp@m.se), Umeå University

Lars Karlsson (larsk.nosp@m.@cs..nosp@m.umu.s.nosp@m.e), Umeå University