PCShellSetApply#

Sets routine to use as preconditioner.

Synopsis#

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

Logically Collective

Input Parameters#

  • pc - the preconditioner context

  • apply - the application-provided preconditioning routine

Calling sequence of apply#

  • pc - the preconditioner, get the application context with PCShellGetContext()

  • xin - input vector

  • xout - output vector

Note#

You can get the PCSHELL context set with PCShellSetContext() using PCShellGetContext() if needed by apply.

See Also#

KSP: Linear System Solvers, PCSHELL, PCShellSetApplyRichardson(), PCShellSetSetUp(), PCShellSetApplyTranspose(), PCShellSetContext(), PCShellSetApplyBA(), PCShellSetApplySymmetricRight(), PCShellSetApplySymmetricLeft(), PCShellGetContext()

Level#

intermediate

Location#

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

Examples#

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

Implementations#

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

Index of all PC routines
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Index of all manual pages