delay_rcx.tcl

set_cmd_units\
    -time ns\
    -capacitance pF\
    -current mA\
    -voltage V\
    -resistance kOhm\
    -distance um

read_liberty "/home/dendraws/.volare/volare/sky130/versions/0fe599b2afb6708d281543108caf8310912f54af/sky130A/libs.ref/sky130_fd_sc_hd/lib/sky130_fd_sc_hd__tt_025C_1v80.lib"
read_verilog runs/drum/50-openroad-fillinsertion/square.nl.v
link_design square
read_spef runs/drum/52-openroad-rcx/nom/square.nom.spef

report_checks -unconstrained -fields {slew cap input nets fanout} -path_delay max

delay_synth.tcl

set_cmd_units\
    -time ns\
    -capacitance pF\
    -current mA\
    -voltage V\
    -resistance kOhm\
    -distance um

read_liberty "/home/dendraws/.volare/volare/sky130/versions/0fe599b2afb6708d281543108caf8310912f54af/sky130A/libs.ref/sky130_fd_sc_hd/lib/sky130_fd_sc_hd__tt_025C_1v80.lib"
read_verilog runs/drum/06-yosys-synthesis/square.nl.v
link_design square

# set pins [get_pins -of_objects [get_nets *d1_x_in_q[*] ] -filter "direction==input"]
# report_checks -through [get_nets *d1_x_in_q[*]] -unconstrained
report_checks -unconstrained -fields {slew cap input nets fanout} -path_delay max

drum_stats.csv

extract_stats.py

import re
import json
from dataclasses import dataclass, fields, asdict
import csv

STA_REGEX = r"\s*([^\s]+)\s*data arrival time"

@dataclass
class Entry:
  n: int
  k: int

  delay_pre_pnr: float
  delay_post_pnr: float

  std_cell_cnt: int
  area: float

  power_internal: float
  power_switching: float
  power_leakage: float
  power_total: float
  
drum_stats = []
full_stats = []

def get_stats(name, n, k):
  try:
    prefix = f"logs/{name}_{n}_{k}"
    with open(f"{prefix}_sta_pre_pnr.log", "r") as f:
      delay_pre_pnr = re.search(STA_REGEX, f.read())[1]
    with open(f"{prefix}_sta_post_pnr.log", "r") as f:
      delay_post_pnr = re.search(STA_REGEX, f.read())[1]
    with open(f"{prefix}_final_metrics.json", "r") as f:
      data = json.load(f)
    
    entry = Entry(
      n, k, delay_pre_pnr, delay_post_pnr,
      data["design__instance__count"],
      data["design__instance__area"],
      data["power__internal__total"],
      data["power__switching__total"],
      data["power__leakage__total"],
      data["power__total"],
    )
    
    return entry
  except Exception as e:
    print(f"Did not find {name} {n} {k}")
  
 
 
for k in range(3, 11):
  drum_stats.append(get_stats("drum", 10, k))

for k in range(3, 11):
  full_stats.append(get_stats("full", 10, k))
  
for n in [16, 24, 32]:
  for k in [6, 7, 8]:
    drum_stats.append(get_stats("drum", n, k))

  full_stats.append(get_stats("full", n, n))

for name, stat_list in [("drum_stats", drum_stats), ("full_stats", full_stats)]:
  with open(f"{name}.csv", "w") as f:
    field_names = [f.name for f in fields(Entry)]
    w = csv.DictWriter(f, field_names)
    w.writeheader()
    w.writerows([asdict(entry) for entry in stat_list])

full_stats.csv

run_drum.sh

#!/usr/bin/env bash

# cd ~/openlane2
# nix-shell
# cd -

mkdir -p logs
rm -rf logs/*

run_flow () {
  name=${1}
  n=${2}
  k=${3}
  
  set_n ${n}
  set_k ${k}

  mkdir -p runs/drum
  rm -rf runs/drum/*
  openlane --condensed --run-tag drum --force-run-dir runs/drum src/config_merged.json

  sta -exit -no_splash scripts/delay_synth.tcl > logs/${name}_${n}_${k}_sta_pre_pnr.log
  sta -exit -no_splash scripts/delay_rcx.tcl > logs/${name}_${n}_${k}_sta_post_pnr.log
  cp runs/drum/06-yosys-synthesis/reports/stat.rpt logs/${name}_${n}_${k}_synth_stat.rpt
  cp /home/dendraws/Documents/tt08-donut/runs/drum/final/metrics.json logs/${name}_${n}_${k}_final_metrics.json  
}

set_drum () {
  sed -i -r -e "s/(parameter IS_DRUM =) (0|1)/\1 ${1}/" src/square.v
}
set_n () {
  sed -i -r -e "s/(parameter N =) [0-9]+/\1 ${1}/" src/square.v
}
set_k () {
  sed -i -r -e "s/(parameter K =) [0-9]+/\1 ${1}/" src/square.v
}

set_n 10
set_drum 1

for i in {3..10}
do
  run_flow drum 10 ${i}
done

set_drum 0

for i in {3..10}
do
  run_flow full 10 ${i} 
done


set_n 16
set_drum 1
run_flow drum 16 6
run_flow drum 16 7
run_flow drum 16 8

set_drum 0
run_flow full 16 16


set_n 24
set_drum 1
run_flow drum 24 6
run_flow drum 24 7
run_flow drum 24 8

set_drum 0
run_flow full 24 24

set_n 32
set_drum 1
run_flow drum 32 6
run_flow drum 32 7
run_flow drum 32 8

set_drum 0
run_flow full 32 32