93 lines
3.2 KiB
Python
93 lines
3.2 KiB
Python
#!/usr/bin/env python3
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import subprocess
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import time
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import struct
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import random
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import math
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import statistics
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import tempfile
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import itertools
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from collections import defaultdict
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from os import path
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import tqdm
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SIMS = [ 'dec_proto_am_ber_top.py',
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'dec_proto_am_dc_ber_top.py',
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'dec_proto_fm_ber_top.py',
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]
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E12_SERIES = [1.0, 1.2, 1.5, 1.8, 2.2, 2.7, 3.3, 3.9, 4.7, 5.6, 6.8, 8.2]
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AMPLITUDES_MILLIHERTZ = [ x*y for y in [1, 10, 100] for x in E12_SERIES ]
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SIMULATION_DURATION = 30.0 # seconds realtime
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MAX_CONCURRENT_PROCESSES = 8
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def run_simulation(
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duration = SIMULATION_DURATION,
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simulations = SIMS,
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forklimit = MAX_CONCURRENT_PROCESSES,
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amplitudes:'list(millihertz)' = AMPLITUDES_MILLIHERTZ,
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terminate_timeout:'s' = 5.0,
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communicate_timeout:'s' = 10.0,
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repeat_runs = 1,
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shuffle = False,
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tqdm = tqdm.tqdm
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):
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with tempfile.TemporaryDirectory() as tmpdir:
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jobs = list(enumerate(itertools.product(simulations, amplitudes * repeat_runs)))
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if shuffle:
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random.shuffle(jobs)
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nchunks = int(math.ceil(len(jobs)/forklimit))
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def start_processes(jobs):
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for i, (sim, ampl_mhz) in jobs:
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berfile = path.join(tmpdir, f'berfile_{i}')
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proc = subprocess.Popen(['/usr/bin/python2', sim,
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'--signal-strength', str(ampl_mhz),
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'--ber-file', berfile],
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stdin=subprocess.PIPE, stdout=subprocess.DEVNULL)
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yield proc, sim, ampl_mhz, berfile
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results = { sim: defaultdict(lambda: ([], [])) for sim in simulations }
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with tqdm(total = nchunks * duration, bar_format='{l_bar}{bar}| {elapsed}<{remaining}') as tq:
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tq.write(f'Will launch {len(jobs)} simulation jobs in {nchunks} batches of {forklimit}')
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for n, i in enumerate(range(0, len(jobs), forklimit)):
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batch = jobs[i:][:forklimit]
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tq.write(f'Starting batch {n+1}/{nchunks}...')
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processes = list(start_processes(batch))
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tq.write('done.')
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tq.write('Waiting for simulation:')
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for _ in range(100):
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time.sleep(duration/100)
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tq.update(duration/100)
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tq.write('Terminating processes...')
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for proc, *_ in processes:
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proc.communicate(b'\n', timeout=communicate_timeout)
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for proc, *_ in processes:
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proc.wait(terminate_timeout)
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tq.write('done.')
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tq.write('Processing simulation results')
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for _proc, sim, ampl_mhz, berfile in processes:
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with open(berfile, 'rb') as f:
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data = f.read()
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floats = struct.unpack(f'{len(data)//4}f', data)
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ber = statistics.mean(floats[-256:])
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stdev = statistics.stdev(floats[-256:])
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bers, stdevs = results[sim][ampl_mhz]
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bers.append(ber)
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stdevs.append(stdev)
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return results
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if __name__ == '__main__':
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print(run_simulation())
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