petsc-3.10.5 2019-03-28
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# DMKSPSetComputeInitialGuess

set KSP initial guess evaluation function

### Synopsis

    #include "petscksp.h"
    PetscErrorCode DMKSPSetComputeInitialGuess(DM dm,PetscErrorCode (*func)(KSP,Vec,void*),void *ctx)

Not Collective

### Input Argument

| dm | - DM to be used with KSP
| func | - initial guess evaluation function, see KSPSetComputeInitialGuess() for calling sequence
| ctx | - context for right hand side evaluation

### Note

KSPSetComputeInitialGuess() is normally used, but it calls this function internally because the user context is actually associated with the DM.

### See Also

DMKSPSetContext(), DMKSPGetComputeRHS(), KSPSetRHS()

### Level

advanced

### Location

src/ksp/ksp/interface/dmksp.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages