PCShellSetApplySymmetricLeft#

Sets routine to use as left preconditioner (when the PC_SYMMETRIC is used).

Synopsis#

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

Logically Collective

Input Parameters#

pc - the preconditioner context
apply - the application-provided left 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

See Also#

PCSHELL, PCShellSetApply(), PCShellSetApplySymmetricLeft(), PCShellSetSetUp(), PCShellSetApplyTranspose(), PCShellSetContext()

Level#

advanced

Location#

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

Implementations#

PCShellSetApplySymmetricLeft_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