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lis_solver...esidualnorm(3)   Lis Library Functions  lis_solver...esidualnorm(3)

NAME
     lis_solver_get_residualnorm - calculate the relative residual norm from the
     solution

SYNOPSIS
     #include "lis.h"

     LIS_INT lis_solver_get_residualnorm(LIS_SOLVER solver, LIS_INT *residual);

DESCRIPTION
     Calculate the relative residual norm ||b - Ax||_2/||b||_2 from the solution
     x.

INPUT
     solver The solver

OUTPUT
     residual
	    The relative residual norm ||b - Ax||_2/||b||_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/

Man Page			   6 Sep 2012	     lis_solver...esidualnorm(3)

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