petsc-3.7.5 2017-01-01
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PCCompositeSpecialSetAlpha

 Sets alpha for the special composite preconditioner for alphaI + R + S

Synopsis

#include "petscksp.h" 
PetscErrorCode  PCCompositeSpecialSetAlpha(PC pc,PetscScalar alpha)
Logically Collective on PC

Input Parameter

pc - the preconditioner context
alpha - scale on identity

Keywords

PC, set, type, composite preconditioner, additive, multiplicative

Level:Developer
Location:src/ksp/pc/impls/composite/composite.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages