petsc-3.9.4 2018-09-11

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PCApplySymmetricLeft

Applies the left part of a symmetric preconditioner to a vector.

Synopsis

#include "petscksp.h" 
PetscErrorCode  PCApplySymmetricLeft(PC pc,Vec x,Vec y)

Collective on PC and Vec

Input Parameters

	pc	- the preconditioner context
	x	- input vector

Output Parameter

y -output vector

Notes

Currently, this routine is implemented only for PCICC and PCJACOBI preconditioners.

Keywords

PC, apply, symmetric, left

See Also

PCApply(), PCApplySymmetricRight()

Level

developer

Location

src/ksp/pc/interface/precon.c

Implementations

PCApplySymmetricLeft_BJacobi_Singleblock in src/ksp/pc/impls/bjacobi/bjacobi.c
PCApplySymmetricLeft_ICC in src/ksp/pc/impls/factor/icc/icc.c
PCApplySymmetricLeft_ILU in src/ksp/pc/impls/factor/ilu/ilu.c
PCApplySymmetricLeft_Shell in src/ksp/pc/impls/shell/shellpc.c

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages