PCASMWeightedGetScaling#

Gets the diagonal weights supplied with PCASMWeightedSetScaling() or computed by the function provided with PCASMWeightedSetComputeScaling().

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCASMWeightedGetScaling(PC pc, PetscInt *n, Vec *scaling[])

Not Collective

Input Parameter#

pc - the PCASM preconditioner

Output Parameters#

n - if requested, the number of local subdomains for this processor, or zero if no weights have been supplied
scaling - if requested, the local scaling Vec, or NULL if none have been supplied

Note#

The returned array and its vectors are owned by pc; do not free or destroy them. They are released by PCReset() and PCDestroy(), and replaced by a further call to PCASMWeightedSetScaling().

Fortran Note#

Declare scaling as Vec, pointer :: scaling(:). It is always returned and is disassociated when no weights have been supplied; n may be PETSC_NULL_INTEGER. There is no restore routine, and the pointer must not be used after PCReset(), PCDestroy(), or a further call to PCASMWeightedSetScaling().