MGDefaultResidual

Default routine to calculate the residual.

Synopsis

#include "petscsles.h" 
#include "petscmg.h"   
int MGDefaultResidual(Mat mat,Vec b,Vec x,Vec r)

Collective on Mat and Vec

Input Parameters

	mat	- the matrix
	b	- the right-hand-side
	x	- the approximate solution

Output Parameter

r -location to store the residual

Keywords

MG, default, multigrid, residual

See Also

MGSetResidual()

Level:advanced
Location:src/sles/pc/impls/mg/mgfunc.c
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Index of all manual pages