PETSc version 3.15.5
SNESFASSetInterpolation
Sets the function to be used to calculate the interpolation from l-1 to the lth level 
Synopsis
#include "petscsnes.h"  
PetscErrorCode SNESFASSetInterpolation(SNES snes, PetscInt level, Mat mat)
Input Parameters
|  | snes | - the multigrid context | 
|  | mat | - the interpolation operator | 
|  | level | - the level (0 is coarsest) to supply [do not supply 0] | 
Notes
Usually this is the same matrix used also to set the restriction
for the same level.
One can pass in the interpolation matrix or its transpose; PETSc figures
out from the matrix size which one it is.
See Also
 SNESFASSetInjection(), SNESFASSetRestriction(), SNESFASSetRScale()
Level
advanced
Location
src/snes/impls/fas/fasfunc.c
Index of all SNESFAS routines
Table of Contents for all manual pages
Index of all manual pages