PCAIRSetReuseSparsity

Sets whether PCAIR reuses the sparsity of the multigrid hierarchy during setup

Synopsis

PETSC_EXTERN PetscErrorCode PCAIRSetReuseSparsity(PC pc, PetscBool input_bool)

Logically Collective

Input Parameters

• pc - the PCAIR preconditioner context

• input_bool - PETSC_TRUE to reuse the sparsity of the hierarchy during setup

Options Database Key

• -pc_air_reuse_sparsity (true|false) - reuse the sparsity of the hierarchy (CF splitting, repartitioning, symbolic matrix-matrix products) during setup; defaults to false

Note

If the matrix has changed too much, convergence may suffer.

See Also

KSP: Linear System Solvers, PCAIR, PCAIRGetReuseSparsity(), PCAIRSetReusePolyCoeffs(), PCAIRSetReuseAmount()

Level

advanced

Index of all PC routines
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Index of all manual pages