PCPATCH#

A PC object that encapsulates flexible definition of blocks for overlapping and non-overlapping small block additive preconditioners. Block definition is based on topology from a DM and equation numbering from a PetscSection.

Options Database Keys#

  • -pc_patch_cells_view - Views the process local cell numbers for each patch

  • -pc_patch_points_view - Views the process local mesh point numbers for each patch

  • -pc_patch_g2l_view - Views the map between global dofs and patch local dofs for each patch

  • -pc_patch_patches_view - Views the global dofs associated with each patch and its boundary

  • -pc_patch_sub_mat_view - Views the matrix associated with each patch

See Also#

KSP: Linear System Solvers, PCType, PCCreate(), PCSetType(), PCASM, PCJACOBI, PCPBJACOBI, PCVPBJACOBI, SNESPATCH

Level#

intermediate

Location#

src/ksp/pc/impls/patch/pcpatch.c

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages