PETSc version 3.15.5
PCMGGetInjection
Gets the function to be used to inject primal vectors from level l to l-1. 
Synopsis
#include "petscksp.h" 
PetscErrorCode  PCMGGetInjection(PC pc,PetscInt l,Mat *mat)
Logically Collective on PC
Input Parameters
|  | pc | - the multigrid context | 
|  | l | - the level (0 is coarsest) to supply [Do not supply 0] | 
Output Parameter
|  | mat | - the restriction matrix (may be NULL if no injection is available). | 
See Also
 PCMGSetInjection(), PCMGetGetRestriction()
Level
advanced
Location
src/ksp/pc/impls/mg/mgfunc.c
Index of all PC routines
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Index of all manual pages