title: bench_wires(2)
date: 24/09/08
NAME
bench_wires - bench wires
SYNOPSIS
bench_wires [-met_cnt mcnt] [-cnt count] [-len wire_len] [-over] [-diag] [-all] [-db_only] [-under_met layer] [-w_list width] [-s_list space] [-over_dist dist] [-under_dist dist]
DESCRIPTION
The bench_wires command produces a layout which contains various patterns
that are used to characterize per-unit length R and C values. The generated patterns model
the lateral, vertical, and diagonal coupling capacitances, as well as ground
capacitance effects. This command generates a .def file that contains a number of wire patterns.
This command is specifically intended for the Extraction Rules file generation only.
OPTIONS
-met_cnt: Number of layers used in each pattern. The default value is -1, meaning it is not set, and the allowed values are integers [0, MAX_INT].
-cnt: Number of wires in each pattern. The default value is 5, and the default values are integers [0, MAX_INT].
-len: Wirelength in microns in the pattern. The default value is 100, and the allowed values are integers [0, MAX_INT].
-all: Consider all different pattern geometries (over, under, over_under, and diagonal).
-db_only: Run with db values only. All parameters in bench_wires are ignored.
-under_met: Consider under metal layer.
-w_list: Lists of wire width multipliers from the minimum spacing defined in the LEF.
-s_list: Lists of wire spacing multipliers from the minimum spacing defined in the LEF. The list will be the input index on the OpenRCX RC table (Extraction Rules file).
-over_dist, -under_dist: Consider over and under metal distance respectively.
ARGUMENTS
This command has no arguments.