params.json

{
"aux_input" : {
    "descripton" : "input .aux file", 
    "default" : "", 
    "required" : "required for Bookshelf"
    }, 
"lef_input" : {
    "descripton" : "input LEF file", 
    "default" : "", 
    "required" : "required for LEF/DEF"
    },
"def_input" : {
    "descripton" : "input DEF file", 
    "default" : "", 
    "required" : "required for LEF/DEF"
    },
"verilog_input" : {
    "descripton" : "input VERILOG file, provide circuit netlist information if it is not included in DEF file", 
    "default" : "", 
    "required" : "optional for LEF/DEF"
    },
"gpu" : {
    "descripton" : "enable gpu or not", 
    "default" : 1
    },
"num_bins_x" : {
    "descripton" : "number of bins in horizontal direction", 
    "default" : 512
    },
"num_bins_y" : {
    "descripton" : "number of bins in vertical direction", 
    "default" : 512
    },
"global_place_stages" : {
    "descripton" : "global placement configurations of each stage, a dictionary of {\"num_bins_x\", \"num_bins_y\", \"iteration\", \"learning_rate\", \"learning_rate_decay\", \"wirelength\", \"optimizer\", \"Llambda_density_weight_iteration\", \"Lsub_iteration\"}", 
    "default" : "", 
    "required" : "required"
    },
"target_density" : {
    "descripton" : "target density", 
    "default" : 0.8
    },
"density_weight" : {
    "descripton" : "initial weight of density cost", 
    "default" : 8e-5
    },
"random_seed" : {
    "descripton" : "random seed", 
    "default" : 1000
    },
"result_dir" : {
    "descripton" : "result directory for output", 
    "default" : "results"
    },
"scale_factor" : {
    "descripton" : "scale factor to avoid numerical overflow; 0.0 means not set", 
    "default" : 0.0
    },
"ignore_net_degree" : {
    "descripton" : "ignore net degree larger than some value", 
    "default" : 100
    },
"gp_noise_ratio" : {
    "descripton" : "noise to initial positions for global placement", 
    "default" : 0.025
    },
"enable_fillers" : {
    "descripton" : "enable filler cells", 
    "default" : 1
    },
"global_place_flag" : {
    "descripton" : "whether use global placement", 
    "default" : 1
    },
"legalize_flag" : {
    "descripton" : "whether use internal legalization", 
    "default" : 1
    },
"detailed_place_flag" : {
    "descripton" : "whether use internal detailed placement", 
    "default" : 1
    },
"stop_overflow" : {
    "descripton" : "stopping criteria, consider stop when the overflow reaches to a ratio", 
    "default" : 0.1
    },
"dtype" : {
    "descripton" : "data type, float32 | float64", 
    "default" : "float32"
    },
"detailed_place_engine" : {
    "descripton" : "external detailed placement engine to be called after placement", 
    "default" : ""
    },
"detailed_place_command" : {
    "descripton" : "commands for external detailed placement engine", 
    "default" : "-nolegal -nodetail"
    },
"plot_flag" : {
    "descripton" : "whether plot solution or not", 
    "default" : 0
    },
"RePlAce_ref_hpwl" : {
    "descripton" : "reference HPWL used in RePlAce for updating density weight", 
    "default" : 350000
    },
"RePlAce_LOWER_PCOF" : {
    "descripton" : "lower bound ratio used in RePlAce for updating density weight", 
    "default" : 0.95
    },
"RePlAce_UPPER_PCOF" : {
    "descripton" : "upper bound ratio used in RePlAce for updating density weight", 
    "default" : 1.05
    },
"gamma" : {
    "descripton" : "base coefficient for log-sum-exp and weighted-average wirelength, a relative value to bin size",
    "default" : 4.0
    },
"RePlAce_skip_energy_flag" : {
    "descripton" : "whether skip density energy computation for fast mode, may not work with some solvers", 
    "default" : 0
    },
"random_center_init_flag" : {
    "descripton" : "whether perform random initialization around the center for global placement", 
    "default" : 1
    },
"sort_nets_by_degree" : {
    "descripton" : "whether sort nets by degree or not", 
    "default" : 0
    },
"num_threads" : {
    "descripton" : "number of CPU threads", 
    "default" : 8
    },
"dump_global_place_solution_flag" : {
    "descripton" : "whether dump intermediate global placement solution as a compressed pickle object", 
    "default" : 0
    },
"dump_legalize_solution_flag" : {
    "descripton" : "whether dump intermediate legalization solution as a compressed pickle object", 
    "default" : 0
    },
"routability_opt_flag" : {
    "descripton" : "whether enable routability optimization", 
    "default" : 0
    },
"route_num_bins_x" : {
    "descripton" : "number of routing grids/tiles", 
    "default" : 512
    },
"route_num_bins_y" : {
    "descripton" : "number of routing grids/tiles", 
    "default" : 512
    },
"node_area_adjust_overflow" : {
    "descripton" : "the overflow where to adjust node area", 
    "default" : 0.15
    },
"max_num_area_adjust" : {
    "descripton" : "maximum times to adjust node area", 
    "default" : 3
    },
"adjust_nctugr_area_flag" : {
    "descripton" : "whether use NCTUgr congestion map to guide area adjustment", 
    "default" : 0
    },
"adjust_rudy_area_flag" : {
    "descripton" : "whether use RUDY/RISA map to guide area adjustment", 
    "default" : 1
    },
"adjust_pin_area_flag" : {
    "descripton" : "whether use pin utilization map to guide area adjustment", 
    "default" : 1
    },
"area_adjust_stop_ratio" : {
    "descripton" : "area_adjust_stop_ratio", 
    "default" : 0.01
    },
"route_area_adjust_stop_ratio" : {
    "descripton" : "route_area_adjust_stop_ratio", 
    "default" : 0.01
    },
"pin_area_adjust_stop_ratio" : {
    "descripton" : "pin_area_adjust_stop_ratio", 
    "default" : 0.05
    },
"unit_horizontal_capacity" : {
    "descripton" : "number of horizontal routing tracks per unit distance", 
    "default" : 1.5625
    },
"unit_vertical_capacity" : {
    "descripton" : "number of vertical routing tracks per unit distance", 
    "default" : 1.45
    },
"unit_pin_capacity" : {
    "descripton" : "number of pins per unit area", 
    "default" : 0.058
    },
"max_route_opt_adjust_rate" : {
    "descripton" : "max_route_opt_adjust_rate", 
    "default" : 2.0
    },
"route_opt_adjust_exponent" : {
    "descripton" : "exponent to adjust the routing utilization map", 
    "default" : 2.0
    },
"pin_stretch_ratio" : {
    "descripton" : "pin_stretch_ratio", 
    "default" : 1.414213562
    },
"max_pin_opt_adjust_rate" : {
    "descripton" : "max_pin_opt_adjust_rate", 
    "default" : 1.5
    }, 
"deterministic_flag" : {
    "descripton" : "whether require run-to-run determinism, may have efficiency overhead", 
    "default" : 0
    }
}