param_file.petsc

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###############################
#### Essential parameters #####
 
# set Griffith's energy
-my_gc 1.4e-4
 
# arc length step
-arc_s 1e-5
 
## arc-length step adaptation
 
# desired number of iterations
-adapt_step_its_d 8
# minimal step size
-adapt_step_min_s 1e-5
# maximal step size
-adapt_step_max_s 5e-4
 
## Steps and cutting
# number of cutting steps
-nb_cut_steps 20
# number of load steps between cutting
-nb_load_steps 3
 
## Approximation order and mg
 
# global approximation order
-my_order 1
# increase of appox. at crack front (global_order + ref_order)
-my_ref_order 2
 
# If one or true crack propagation algorithm on
-my_propagate_crack 1
 
# Initial load step
-load_scale 1
 
# Solvers propagation
 
-mofem_mg_verbose 1
-mofem_mg_coarse_order 1
-mofem_mg_levels 3
 
-arc_length_ksp_type fgmres
-arc_length_ksp_max_it 20
#-arc_length_norm_iteration 5
-arc_length_ksp_gmres_restart 500
-arc_length_ksp_atol 1e-10
-arc_length_ksp_rtol 0
#-arc_length_ksp_monitor
 
-elastic_pc_type lu
#-elastic_pc_type mg
 
-propagation_pc_type lu
#-propagation_pc_type fieldsplit
-propagation_pc_fieldsplit_type multiplicative
#-propagation_pc_fieldsplit_type schur
#-propagation_pc_fieldsplit_schur_precondition selfp
 
-propagation_fieldsplit_0_ksp_type cg
-propagation_fieldsplit_0_ksp_atol 1e-16
-propagation_fieldsplit_0_ksp_rtol 0
-propagation_fieldsplit_0_ksp_max_it 5
-propagation_fieldsplit_0_pc_type lu
#-propagation_fieldsplit_0_pc_type bjacobi
#-propagation_fieldsplit_0_pc_type mg
#-propagation_fieldsplit_0_ksp_monitor
#-propagation_fieldsplit_0_ksp_converged_reason
-propagation_fieldsplit_0_pc_mg_type multiplicative
-propagation_fieldsplit_0_pc_mg_smoothup 1
-propagation_fieldsplit_0_pc_mg_smoothdown 1
-propagation_fieldsplit_0_mg_coarse_ksp_type cg
-propagation_fieldsplit_0_mg_coarse_pc_type lu
 
-propagation_fieldsplit_1_ksp_type fgmres
-propagation_fieldsplit_1_ksp_atol 1e-16
-propagation_fieldsplit_1_ksp_rtol 0
-propagation_fieldsplit_1_ksp_max_it 3
#-propagation_fieldsplit_1_ksp_monitor
-propagation_fieldsplit_1_pc_type lu
 
######################################
##### Critical cutting parameters ####
 
#-fraction_level 1
 
# Cut
-tol_cut 1e-2
-tol_cut_close 1e-1
 
# Trim
-tol_trim_close 1e-1
 
-cut_mesh 1
-cut_surface_side_set 400
-edges_block_set 2
-vertex_block_set 3
-cut_factor 1
 
#-cutting_surf_corner_factor 1
#-cutting_surf_skin_factor 0.2
#-cutting_snap_to_fixed_edge_rtol 0.2
 
-ref_before_cut 1
-ref_before_trim 0
 
##############################
#### Somtimes change this ####
 
# Arc-length
 
-arc_beta 0
 
# Crack front regularisation
 
-griffith_E 1
-griffith_r 1
-gc_fix_threshold 0.5
 
# Smoothing parameters
 
-arc_alpha 1
-smoothing_stabilise 1
-smoother_alpha 1
-adapt_min_smoother_alpha 1
 
# Approximation and order
 
-my_ref 0
-my_geom_order 1
-material HOOKE
-my_add_singularity 0
-my_max_post_proc_ref_level 0
 
###################################
#### Almost never change this  ####
 
-volume_length_type BARRIER_AND_CHANGE_QUALITY_SCALED_BY_VOLUME
 
-ksp_type gmres
-ksp_atol 1e-12
-ksp_rtol 1e-12
-ksp_max_it 10
-pc_type lu
 
-elastic_snes_monitor
-elastic_snes_atol 1e-10
-elastic_snes_rtol 1e-10
-elastic_snes_converged_reason
-elastic_snes_linesearch_type basic
-elastic_snes_max_linear_solve_fail 100
-elastic_snes_max_fail 100
 
-elastic_ksp_monitor
-elastic_ksp_type gmres
-elastic_ksp_atol 1e-12
-elastic_ksp_rtol 1e-12
-elastic_ksp_stol 0
-elastic_ksp_max_it 100
 
-elastic_pc_mg_log
-elastic_pc_mg_type multiplicative
-elastic_pc_mg_smoothup 1
-elastic_pc_mg_smoothdown 1
-elastic_mg_coarse_ksp_type gmres
-elastic_mg_coarse_pc_type lu
#-elastic_ksp_converged_reason
 
#-propagation_snes_type ngmres
#-propagation_snes_ngmres_select_type difference
#-propagation_ngmres_monitor 1
#-propagation_snes_type test
 
-propagation_snes_atol 1e-8
-propagation_snes_rtol 1e-6
-propagation_snes_stol 0
-propagation_snes_converged_reason
-propagation_snes_max_linear_solve_fail 100
-propagation_snes_max_fail 100
-propagation_snes_max_it 20
 
-propagation_snes_linesearch_type l2
-propagation_snes_linesearch_minlambda 1e-3
-propagation_snes_linesearch_damping 1
-propagation_snes_linesearch_max_it 1
-propagation_snes_linesearch_monitor
-propagation_snes_monitor
 
-propagation_ksp_monitor
-propagation_ksp_type fgmres
-propagation_ksp_atol 1e-10
-propagation_ksp_rtol 1e-6
-propagation_ksp_max_it 100
-propagation_ksp_gmres_restart 500
 
-pc_factor_mat_ordering_type natural
-material_pc_factor_mat_ordering_type natural
-elastic_pc_factor_mat_ordering_type natural
-propagation_pc_factor_mat_ordering_type natural
-propagation_fieldsplit_0_mg_coarse_pc_factor_mat_ordering_type natural
-propagation_fieldsplit_0_pc_factor_mat_ordering_type natural
-propagation_fieldsplit_1_pc_factor_mat_ordering_type natural