petsc-3.14.5 2021-03-03
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# DMKSPGetComputeOperators

get KSP matrix evaluation function

### Synopsis

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

Not Collective

### Input Argument

| dm | - DM to be used with KSP

### Output Arguments

| func | - matrix evaluation function, see KSPSetComputeOperators() for calling sequence
| ctx | - context for matrix evaluation

### See Also

DMKSPSetContext(), KSPSetComputeOperators(), DMKSPSetComputeOperators()

### 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