PCShellSetApply#

Sets routine to use as preconditioner.

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCShellSetApply(PC pc, PetscErrorCode (*apply)(PC, Vec, Vec))

Logically Collective

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

Note#

the function MUST return an error code of 0 on success and nonzero on failure.

See Also#

PCSHELL, PCShellSetApplyRichardson(), PCShellSetSetUp(), PCShellSetApplyTranspose(), PCShellSetContext(), PCShellSetApplyBA(), PCShellSetApplySymmetricRight(), PCShellSetApplySymmetricLeft()

Level#

intermediate

Location#

src/ksp/pc/impls/shell/shellpc.c

Examples#

src/ksp/ksp/tutorials/ex15.c.html
src/ksp/ksp/tutorials/ex15f.F90.html
src/ksp/ksp/tutorials/ex60.c.html
src/snes/tutorials/ex3.c.html
src/tao/pde_constrained/tutorials/hyperbolic.c.html
src/tao/pde_constrained/tutorials/parabolic.c.html

Implementations#

PCShellSetApply_Shell(PC pc, PetscErrorCode (*apply) in src/ksp/pc/impls/shell/shellpc.c

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