petsc-master 2019-09-20
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SNESFASGetRestriction

Gets the matrix used to calculate the restriction from l to the l-1th level

Synopsis

#include "petscsnes.h"  
PetscErrorCode SNESFASGetRestriction(SNES snes, PetscInt level, Mat *mat)

Input Parameters

snes - the multigrid context
level - the level (0 is coarsest) to supply [do not supply 0]

Output Parameters

mat -the interpolation operator

See Also

SNESFASSetRestriction(), SNESFASGetInjection(), SNESFASGetInterpolation(), SNESFASGetRScale()

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