PCMGRegisterCoarseSpaceConstructor#

Adds a method to the PCMG package for coarse space construction.

Synopsis#

#include "petscksp.h" 
PetscErrorCode PCMGRegisterCoarseSpaceConstructor(const char name[], PetscErrorCode (*function)(PC pc, PetscInt l, DM dm, KSP smooth, PetscInt Nc, Mat initGuess, Mat *coarseSp))

Not Collective

Input Parameters#

  • name - name of the constructor

  • function - constructor routine

Calling sequence of function#

  • pc - The PC object

  • l - The multigrid level, 0 is the coarse level

  • dm - The DM for this level

  • smooth - The level smoother

  • Nc - The size of the coarse space

  • initGuess - Basis for an initial guess for the space

  • coarseSp - A basis for the computed coarse space

Developer Notes#

How come this is not used by PCGAMG?

See Also#

KSP: Linear System Solvers, PCMG, PCMGGetCoarseSpaceConstructor(), PCRegister()

Level#

advanced

Location#

src/ksp/pc/impls/mg/mg.c

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages