62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
# KSP options
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-ksp_view
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-ksp_converged_reason
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# Internal use (don't remove it)
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-matis_convert_local_nest
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# PCBDDC options
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# mandatory options
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# activate support for saddle point problems
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-prec_pc_bddc_benign_trick
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# primal space customization
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-prec_pc_bddc_nonetflux
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# dofs connectivity
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-prec_pc_bddc_use_local_mat_graph 0
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-prec_pc_bddc_detect_disconnected
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# additional options
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# verbose output
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#-prec_pc_bddc_check_level 1
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# local solvers (default "petsc" solvers will fail)
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# needs PETSc compiled with support for MUMPS or SuiteSparse
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# use "umfpack" in place of "mumps" if you want to use
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# SuiteSparse solvers
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#
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# With PETSc versions older than 3.9
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# use "mat_solver_package" instead of "mat_solver_type"
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#
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-prec_pc_bddc_neumann_pc_type lu
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-prec_pc_bddc_neumann_pc_factor_mat_solver_type mumps
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-prec_pc_bddc_neumann_pc_factor_mat_solver_package mumps
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-prec_pc_bddc_dirichlet_pc_type lu
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-prec_pc_bddc_dirichlet_pc_factor_mat_solver_type mumps
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-prec_pc_bddc_dirichlet_pc_factor_mat_solver_package mumps
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# MUMPS sometimes fails with a very annoying error
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-mat_mumps_icntl_14 500
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-prec_pc_bddc_dirichlet_mat_mumps_icntl_14 500
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-prec_pc_bddc_neumann_mat_mumps_icntl_14 500
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# coarse solver (needs PETSc compiled with support for MUMPS)
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# default solver may fail
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-prec_pc_bddc_coarse_pc_factor_mat_solver_type mumps
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-prec_pc_bddc_coarse_pc_factor_mat_solver_package mumps
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-prec_pc_bddc_coarse_pc_type cholesky
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# deluxe scaling (needs PETSc compiled with support for MUMPS)
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#-prec_pc_bddc_use_deluxe_scaling
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-prec_pc_bddc_deluxe_zerorows
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-prec_sub_schurs_mat_mumps_icntl_14 500
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# adaptive generation of primal space (needs MUMPS)
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#-prec_pc_bddc_adaptive_threshold 5
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#-prec_pc_bddc_schur_exact
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