NAME

lis_esolver_get_residualnorm - get the relative residual norm for the specified eigenpair from the eigensolver

SYNOPSIS

#include "lis.h"

LIS_INT lis_esolver_get_residualnorm(LIS_ESOLVER esolver, LIS_REAL *residual);

DESCRIPTION

Get the relative residual norm ||lx - Ax||_2/||lx||_2 for the specified eigenpair from the eigensolver.

INPUT

esolver

The eigensolver

OUTPUT

residual

The relative residual norm ||lx - Ax||_2/||lx||_2

EXIT STATUS

The following exit values are returned:

0

The process is normally terminated

unspecified

An error occurred

SEE ALSO

lis(3)

http://www.ssisc.org/lis/