PCShellSetMatApply#

Sets routine to use as preconditioner on a block of vectors.

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCShellSetMatApply(PC pc, PetscErrorCode (*matapply)(PC, Mat, Mat))

Logically Collective

Input Parameters#

  • pc - the preconditioner context

  • apply - the application-provided preconditioning routine

Calling sequence of apply#

   PetscErrorCode apply(PC pc, Mat Xin, Mat Xout)
  • pc - the preconditioner, get the application context with PCShellGetContext()

  • Xin - input block of vectors

  • Xout - output block of vectors

See Also#

PCSHELL, PCShellSetApply()

Level#

advanced

Location#

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

Examples#

src/ksp/ksp/tutorials/ex79.c

Implementations#

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


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