| 1 | #!/usr/bin/python3
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| 2 | """
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| 3 | Python Script to implement R.M.I.T. testing : Randomized Multiple Interleaved Trials
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| 4 |
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| 5 | ./rmit.py run COMMAND CANDIDATES
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| 6 | -t trials
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| 7 | -o option:values
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| 8 | """
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| 9 |
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| 10 |
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| 11 | import argparse
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| 12 | import datetime
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| 13 | import itertools
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| 14 | import json
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| 15 | import os
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| 16 | import random
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| 17 | import re
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| 18 | import socket
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| 19 | import subprocess
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| 20 | import sys
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| 21 |
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| 22 |
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| 23 | def parse_range(x):
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| 24 | result = []
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| 25 | for part in x.split(','):
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| 26 | if '-' in part:
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| 27 | a, b = part.split('-')
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| 28 | a, b = int(a), int(b)
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| 29 | result.extend(range(a, b + 1))
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| 30 | else:
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| 31 | a = int(part)
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| 32 | result.append(a)
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| 33 | return result
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| 34 |
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| 35 | class DependentOpt:
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| 36 | def __init__(self, key, value):
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| 37 | self.key = key
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| 38 | self.value = value
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| 39 | self.vars = re.findall("[a-zA-Z]", value)
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| 40 |
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| 41 | def parse_option(key, values):
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| 42 | try:
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| 43 | num = int(values)
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| 44 | return key, [num]
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| 45 | except:
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| 46 | pass
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| 47 |
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| 48 | if re.search("^[0-9-,]+$", values):
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| 49 | values = parse_range(values)
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| 50 | return key, [v for v in values]
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| 51 | else:
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| 52 | return key, DependentOpt(key, values)
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| 53 |
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| 54 | def eval_one(fmt, vals):
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| 55 | orig = fmt
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| 56 | for k, v in vals:
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| 57 | fmt = fmt.replace(k, str(v))
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| 58 |
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| 59 | if not re.search("^[0-9-/*+ ]+$", fmt):
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| 60 | print('ERROR: pattern option {} (interpreted as {}) could not be evaluated'.format(orig, fmt), file=sys.stderr)
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| 61 | sys.exit(1)
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| 62 |
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| 63 | return eval(fmt)
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| 64 |
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| 65 | def eval_options(opts):
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| 66 | dependents = [d for d in opts.values() if type(d) is DependentOpt]
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| 67 | processed = []
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| 68 | nopts = []
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| 69 | for d in dependents:
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| 70 | processed.append(d.key)
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| 71 | lists = []
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| 72 | for dvar in d.vars:
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| 73 | if not dvar in opts.keys():
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| 74 | print('ERROR: extra pattern option {}:{} uses unknown key {}'.format(d.key,d.value,dvar), file=sys.stderr)
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| 75 | sys.exit(1)
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| 76 |
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| 77 | lists.append([(dvar, o) for o in opts[dvar]])
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| 78 | processed.append(dvar)
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| 79 |
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| 80 | kopt = []
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| 81 | for vals in list(itertools.product(*lists)):
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| 82 | res = ['-{}'.format(d.key), "{}".format(eval_one(d.value, vals))]
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| 83 | for k, v in vals:
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| 84 | res.extend(['-{}'.format(k), "{}".format(v)])
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| 85 | kopt.append(res)
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| 86 | nopts.append(kopt)
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| 87 |
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| 88 |
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| 89 | for k, vals in opts.items():
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| 90 | if k not in processed:
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| 91 | kopt = []
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| 92 | for v in vals:
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| 93 | kopt.append(['-{}'.format(k), "{}".format(v)])
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| 94 | nopts.append(kopt)
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| 95 |
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| 96 | return nopts
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| 97 |
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| 98 | # returns the first option with key 'opt'
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| 99 | def search_option(action, opt):
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| 100 | i = 0
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| 101 | while i < len(action):
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| 102 | if action[i] == opt:
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| 103 | i += 1
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| 104 | if i != len(action):
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| 105 | return action[i]
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| 106 | i += 1
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| 107 |
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| 108 | return None
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| 109 |
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| 110 | def actions_eta(actions):
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| 111 | time = 0
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| 112 | for a in actions:
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| 113 | o = search_option(a, '-d')
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| 114 | if o :
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| 115 | time += int(o)
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| 116 | return time
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| 117 |
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| 118 | taskset_maps = None
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| 119 |
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| 120 | def init_taskset_maps():
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| 121 | global taskset_maps
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| 122 | known_hosts = {
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| 123 | "jax": {
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| 124 | range( 1, 24) : "48-71",
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| 125 | range( 25, 48) : "48-71,144-167",
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| 126 | range( 49, 96) : "48-95,144-191",
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| 127 | range( 97, 144) : "24-95,120-191",
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| 128 | range(145, 192) : "0-95,96-191",
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| 129 | },
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| 130 | }
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| 131 |
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| 132 | if (host := socket.gethostname()) in known_hosts:
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| 133 | taskset_maps = known_hosts[host]
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| 134 | return True
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| 135 |
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| 136 | print("Warning unknown host '{}', disable taskset usage".format(host), file=sys.stderr)
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| 137 | return False
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| 138 |
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| 139 |
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| 140 | def settaskset_one(action):
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| 141 | o = search_option(action, '-p')
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| 142 | if not o:
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| 143 | return action
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| 144 | try:
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| 145 | oi = int(o)
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| 146 | except ValueError:
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| 147 | return action
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| 148 |
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| 149 | m = "Not found"
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| 150 | for key in taskset_maps:
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| 151 | if oi in key:
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| 152 | return ['taskset', '-c', taskset_maps[key], *action]
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| 153 |
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| 154 | print("Warning no mapping for {} cores".format(oi), file=sys.stderr)
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| 155 | return action
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| 156 |
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| 157 | def settaskset(actions):
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| 158 | return [settaskset_one(a) for a in actions]
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| 159 |
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| 160 | if __name__ == "__main__":
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| 161 | # ================================================================================
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| 162 | # parse command line arguments
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| 163 | formats = ['raw', 'csv', 'json']
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| 164 | parser = argparse.ArgumentParser(description='Python Script to implement R.M.I.T. testing : Randomized Multiple Interleaved Trials')
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| 165 | parser.add_argument('--list', help='List all the commands that would be run', action='store_true')
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| 166 | parser.add_argument('--file', nargs='?', type=argparse.FileType('w'), default=sys.stdout)
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| 167 | parser.add_argument('--trials', help='Number of trials to run per combinaison', type=int, default=3)
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| 168 | parser.add_argument('--notaskset', help='If specified, the trial will not use taskset to match the -p option', action='store_true')
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| 169 | parser.add_argument('command', metavar='command', type=str, nargs=1, help='the command prefix to run')
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| 170 | parser.add_argument('candidates', metavar='candidates', type=str, nargs='*', help='the candidate suffix to run')
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| 171 |
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| 172 | try:
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| 173 | options, unknown = parser.parse_known_args()
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| 174 |
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| 175 | options.option = []
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| 176 | while unknown:
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| 177 | key = unknown.pop(0)
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| 178 | val = unknown.pop(0)
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| 179 |
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| 180 | if key[0] != '-':
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| 181 | raise ValueError
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| 182 |
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| 183 | options.option.append((key[1:], val))
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| 184 |
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| 185 | except:
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| 186 | print('ERROR: invalid arguments', file=sys.stderr)
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| 187 | parser.print_help(sys.stderr)
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| 188 | sys.exit(1)
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| 189 |
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| 190 | # ================================================================================
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| 191 | # Identify the commands to run
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| 192 | command = './' + options.command[0]
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| 193 | if options.candidates:
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| 194 | commands = [command + "-" + c for c in options.candidates]
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| 195 | else:
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| 196 | commands = [command]
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| 197 | for c in commands:
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| 198 | if not os.path.isfile(c):
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| 199 | print('ERROR: invalid command {}, file does not exist'.format(c), file=sys.stderr)
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| 200 | sys.exit(1)
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| 201 |
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| 202 | if not os.access(c, os.X_OK):
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| 203 | print('ERROR: invalid command {}, file not executable'.format(c), file=sys.stderr)
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| 204 | sys.exit(1)
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| 205 |
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| 206 |
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| 207 | # ================================================================================
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| 208 | # Identify the options to run
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| 209 | opts = dict([parse_option(k, v) for k, v in options.option])
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| 210 |
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| 211 | # Evaluate the options (options can depend on the value of other options)
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| 212 | opts = eval_options(opts)
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| 213 |
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| 214 | # ================================================================================
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| 215 | # Figure out all the combinations to run
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| 216 | actions = []
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| 217 | for p in itertools.product(range(options.trials), commands, *opts):
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| 218 | act = [p[1]]
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| 219 | for o in p[2:]:
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| 220 | act.extend(o)
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| 221 | actions.append(act)
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| 222 |
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| 223 | # ================================================================================
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| 224 | # Fixup the different commands
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| 225 |
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| 226 | # Add tasksets
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| 227 | withtaskset = False
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| 228 | if not options.notaskset and init_taskset_maps():
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| 229 | withtaskset = True
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| 230 | actions = settaskset(actions)
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| 231 |
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| 232 | # ================================================================================
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| 233 | # Now that we know what to run, print it.
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| 234 | # find expected time
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| 235 | time = actions_eta(actions)
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| 236 | print("Running {} trials{}".format(len(actions), "" if time == 0 else " (expecting to take {})".format(str(datetime.timedelta(seconds=int(time)))) ))
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| 237 |
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| 238 | # dry run if options ask for it
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| 239 | if options.list:
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| 240 | for a in actions:
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| 241 | print(" ".join(a))
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| 242 | sys.exit(0)
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| 243 |
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| 244 |
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| 245 | # ================================================================================
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| 246 | # Prepare to run
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| 247 |
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| 248 | random.shuffle(actions)
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| 249 |
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| 250 | # ================================================================================
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| 251 | # Run
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| 252 | options.file.write("[")
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| 253 | first = True
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| 254 | for i, a in enumerate(actions):
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| 255 | sa = " ".join(a[3:] if withtaskset else a)
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| 256 | if first:
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| 257 | first = False
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| 258 | else:
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| 259 | options.file.write(",")
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| 260 | if options.file != sys.stdout:
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| 261 | print("{}/{} : {} \r".format(i, len(actions), sa), end = '')
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| 262 | fields = {}
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| 263 | with subprocess.Popen( a, stdout = subprocess.PIPE, stderr = subprocess.PIPE) as proc:
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| 264 | out, err = proc.communicate()
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| 265 | if proc.returncode != 0:
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| 266 | print("ERROR: command '{}' encountered error, returned code {}".format(sa, proc.returncode), file=sys.stderr)
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| 267 | print(err.decode("utf-8"))
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| 268 | sys.exit(1)
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| 269 | for s in out.decode("utf-8").splitlines():
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| 270 | match = re.search("^(.*):(.*)$", s)
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| 271 | if match:
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| 272 | try:
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| 273 | fields[match.group(1).strip()] = float(match.group(2).strip().replace(',',''))
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| 274 | except:
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| 275 | pass
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| 276 |
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| 277 | options.file.write(json.dumps([a[3 if withtaskset else 0][2:], sa, fields]))
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| 278 | options.file.flush()
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| 279 |
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| 280 | options.file.write("]\n")
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| 281 |
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| 282 | if options.file != sys.stdout:
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| 283 | print("Done ")
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