DMKSPSetComputeOperators#
set KSP matrix evaluation function
Synopsis#
#include "petscksp.h"
PetscErrorCode DMKSPSetComputeOperators(DM dm, KSPComputeOperatorsFn *func, void *ctx)
Not Collective
Input Parameters#
func - matrix evaluation function, for calling sequence see
KSPComputeOperatorsFnctx - context for matrix evaluation
Note#
KSPSetComputeOperators() is normally used, but it calls this function internally because the user context is actually
associated with the DM. This makes the interface consistent regardless of whether the user interacts with a DM or
not.
Developer Note#
If DM took a more central role at some later date, this could become the primary method of setting the matrix.
See Also#
KSP: Linear System Solvers, DMKSP, DM, KSP, DMKSPSetContext(), DMKSPGetComputeOperators(), KSPSetOperators(), KSPComputeOperatorsFn
Level#
developer
Location#
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages