PETSc version 3.15.5
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.
See Also
 PCShellSetApplyRichardson(), PCShellSetSetUp(), PCShellSetApplyTranspose(), PCShellSetContext(), PCShellSetApplyBA(), PCShellSetApplySymmetricRight(),PCShellSetApplySymmetricLeft()
Level
developer
Location
src/ksp/pc/impls/shell/shellpc.c
Examples
src/ksp/ksp/tutorials/ex15.c.html
src/ksp/ksp/tutorials/ex15f.F90.html
src/snes/tutorials/ex3.c.html
src/tao/pde_constrained/tutorials/parabolic.c.html
src/tao/pde_constrained/tutorials/hyperbolic.c.html
Implementations
PCShellSetApply_Shell(PC pc,PetscErrorCode (*apply) 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