PCAIRGetCycleComplexity

Returns the cycle complexity of the PCAIR multigrid hierarchy

Synopsis

PETSC_EXTERN PetscErrorCode PCAIRGetCycleComplexity(PC pc, PetscReal *complexity)

Not Collective

Input Parameter

• pc - the PCAIR preconditioner context

Output Parameter

• complexity - the cycle complexity of the hierarchy, or -1 if PCSetUp() has not yet been called

Note

Cycle complexity is the total number of nonzeros touched while applying a single multigrid V-cycle, divided by the number of nonzeros in the finest-level matrix.

See Also

KSP: Linear System Solvers, PCAIR, PCSetUp(), PCAIRGetNumLevels(), PCAIRGetGridComplexity(), PCAIRGetOperatorComplexity(), PCAIRGetStorageComplexity(), PCAIRGetReuseStorageComplexity()

Level

advanced

Index of all PC routines
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Index of all manual pages