From e39290b71299843eff858fb51543b99a06178a1d Mon Sep 17 00:00:00 2001 From: David Shah Date: Wed, 25 Jul 2018 10:48:24 +0200 Subject: Add a simple 8x benchmark script Signed-off-by: David Shah --- ice40/picorv32_benchmark.py | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100755 ice40/picorv32_benchmark.py diff --git a/ice40/picorv32_benchmark.py b/ice40/picorv32_benchmark.py new file mode 100755 index 00000000..9544db50 --- /dev/null +++ b/ice40/picorv32_benchmark.py @@ -0,0 +1,43 @@ +#!/usr/bin/env python3 +import os, sys, threading +from os import path +import subprocess +import re + +num_runs = 8 + +if not path.exists("picorv32.json"): + os.remove("picorv32.json") + subprocess.run(["wget", "https://raw.githubusercontent.com/cliffordwolf/picorv32/master/picorv32.v"], check=True) + subprocess.run(["yosys", "-q", "-p", "synth_ice40 -json picorv32.json -top top", "picorv32.v", "picorv32_top.v"], check=True) + +fmax = {} + +if not path.exists("picorv32_work"): + os.mkdir("picorv32_work") + +threads = [] + +for i in range(num_runs): + def runner(run): + ascfile = "picorv32_work/picorv32_s{}.asc".format(run) + if path.exists(ascfile): + os.remove(ascfile) + result = subprocess.run(["../nextpnr-ice40", "--hx8k", "--seed", str(run), "--json", "picorv32.json", "--asc", ascfile], stderr=subprocess.DEVNULL, stdout=subprocess.DEVNULL) + if result.returncode != 0: + print("Run {} failed!".format(run)) + else: + icetime_res = subprocess.check_output(["icetime", "-d", "hx8k", ascfile]) + fmax_m = re.search(r'\(([0-9.]+) MHz\)', icetime_res.decode('utf-8')) + fmax[run] = float(fmax_m.group(1)) + threads.append(threading.Thread(target=runner, args=[i+1])) + +for t in threads: t.start() +for t in threads: t.join() + +fmax_min = min(fmax.values()) +fmax_max = max(fmax.values()) +fmax_avg = sum(fmax.values()) / len(fmax) + +print("{}/{} runs passed".format(len(fmax), num_runs)) +print("icetime: min = {} MHz, avg = {} MHz, max = {} MHz".format(fmax_min, fmax_avg, fmax_max)) -- cgit v1.2.3