-pc_hmg_reuse_interpolation <true | false> | - Whether or not to reuse the interpolations. If true, it potentially save the compute time. | |

-pc_hmg_use_subspace_coarsening <true | false> | - Whether or not to use subspace coarsening (that is, coarsen a submatrix). | |

-hmg_inner_pc_type <hypre, gamg, ...> | - What method is used to coarsen matrix | |

-pc_hmg_use_matmaij <true | false> | - Whether or not to use MatMAIJ for multicomponent problems for saving memory |

Concepts: Hybrid of ASM and MG, Subspace Coarsening

1. | - Fande Kong, Yaqi Wang, Derek R Gaston, Cody J Permann, Andrew E Slaughter, Alexander D Lindsay, Richard C Martineau, A highly parallel multilevel Newton-Krylov-Schwarz method with subspace-based coarsening and partition-based balancing for the multigroup neutron transport equations on 3D unstructured meshes, arXiv preprint arXiv:1903.03659, 2019 |

PCHMGSetInnerPCType()

Index of all PC routines

Table of Contents for all manual pages

Index of all manual pages