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Man Pages
lis_esolver_get_residualnorm(3) Lis Library Functions lis_esolver_get_residualnorm(3)

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

#include "lis.h"

LIS_INT lis_esolver_get_residualnorm(LIS_ESOLVER esolver, LIS_REAL *residual);

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

esolver
The eigensolver

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

The following exit values are returned:
0
The process is normally terminated
unspecified
An error occurred

lis(3)

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

28 Aug 2014 Man Page
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