petsc-3.7.7 2017-09-25
   
PCShellSetApply
Sets routine to use as preconditioner. 
Synopsis
#include "petscpc.h" 
PetscErrorCode  PCShellSetApply(PC pc,PetscErrorCode (*apply)(PC,Vec,Vec))
Logically Collective on PC
Input Parameters
|  | pc | - the preconditioner context | 
|  | apply | - the application-provided preconditioning routine | 
Calling sequence of apply
   PetscErrorCode apply (PC pc,Vec xin,Vec xout)
|  | pc | - the preconditioner, get the application context with PCShellGetContext() | 
|  | xin | - input vector | 
|  | xout | - output vector | 
Notes: the function MUST return an error code of 0 on success and nonzero on failure.
Keywords
 PC, shell, set, apply, user-provided
See Also
 PCShellSetApplyRichardson(), PCShellSetSetUp(), PCShellSetApplyTranspose(), PCShellSetContext(), PCShellSetApplyBA(), PCShellSetApplySymmetricRight(),PCShellSetApplySymmetricLeft()
Level:developer
Location:src/ksp/pc/impls/shell/shellpc.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/ksp/ksp/examples/tutorials/ex15.c.html
src/ksp/ksp/examples/tutorials/ex15f.F.html
src/ksp/ksp/examples/tutorials/ex21f.F.html
src/snes/examples/tutorials/ex3.c.html
src/tao/pde_constrained/examples/tutorials/parabolic.c.html
src/tao/pde_constrained/examples/tutorials/hyperbolic.c.html