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#
Examples#
src/ksp/ksp/tutorials/ex15.c
src/snes/tutorials/ex3.c
src/tao/pde_constrained/tutorials/parabolic.c
src/tao/pde_constrained/tutorials/hyperbolic.c
src/ksp/pc/tutorials/ex4.c
src/ksp/ksp/tutorials/ex60.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages