PCSHELL#
Creates a new preconditioner class for use with a users own private data storage format and preconditioner application code
Usage#
extern PetscErrorCode apply(PC,Vec,Vec);
extern PetscErrorCode applyba(PC,PCSide,Vec,Vec,Vec);
extern PetscErrorCode applytranspose(PC,Vec,Vec);
extern PetscErrorCode setup(PC);
extern PetscErrorCode destroy(PC);
PCCreate(comm,&pc);
PCSetType(pc,PCSHELL);
PCShellSetContext(pc,ctx)
PCShellSetApply(pc,apply);
PCShellSetApplyBA(pc,applyba); (optional)
PCShellSetApplyTranspose(pc,applytranspose); (optional)
PCShellSetSetUp(pc,setup); (optional)
PCShellSetDestroy(pc,destroy); (optional)
Note#
Information required for the preconditioner and its internal datastructures can be set with PCShellSetContext() and then accessed
with PCShellGetContext() inside the routines provided above
See Also#
KSP: Linear System Solvers, PCCreate(), PCSetType(), PCType, PC,
MATSHELL, PCShellSetSetUp(), PCShellSetApply(), PCShellSetView(), PCShellSetDestroy(), PCShellSetPostSolve(),
PCShellSetApplyTranspose(), PCShellSetName(), PCShellSetApplyRichardson(), PCShellSetPreSolve(), PCShellSetView(),
PCShellGetName(), PCShellSetContext(), PCShellGetContext(), PCShellSetApplyBA(), MATSHELL, PCShellSetMatApply(),
Level#
advanced
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