| # -*- coding: utf-8 -*- |
| # Copyright (c) 2013 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| """The experiment setting module.""" |
| |
| from __future__ import print_function |
| |
| import os |
| import time |
| |
| import afe_lock_machine |
| from threading import Lock |
| |
| from cros_utils import logger |
| from cros_utils import misc |
| |
| import benchmark_run |
| from machine_manager import BadChecksum |
| from machine_manager import MachineManager |
| from machine_manager import MockMachineManager |
| import test_flag |
| |
| |
| class Experiment(object): |
| """Class representing an Experiment to be run.""" |
| |
| def __init__(self, name, remote, working_directory, chromeos_root, |
| cache_conditions, labels, benchmarks, experiment_file, email_to, |
| acquire_timeout, log_dir, log_level, share_cache, |
| results_directory, locks_directory, cwp_dso, enable_aslr): |
| self.name = name |
| self.working_directory = working_directory |
| self.remote = remote |
| self.chromeos_root = chromeos_root |
| self.cache_conditions = cache_conditions |
| self.experiment_file = experiment_file |
| self.email_to = email_to |
| if not results_directory: |
| self.results_directory = os.path.join(self.working_directory, |
| self.name + '_results') |
| else: |
| self.results_directory = misc.CanonicalizePath(results_directory) |
| self.log_dir = log_dir |
| self.log_level = log_level |
| self.labels = labels |
| self.benchmarks = benchmarks |
| self.num_complete = 0 |
| self.num_run_complete = 0 |
| self.share_cache = share_cache |
| self.active_threads = [] |
| # If locks_directory (self.lock_dir) not blank, we will use the file |
| # locking mechanism; if it is blank then we will use the AFE server |
| # locking mechanism. |
| self.locks_dir = locks_directory |
| self.locked_machines = [] |
| self.cwp_dso = cwp_dso |
| self.enable_aslr = enable_aslr |
| |
| if not remote: |
| raise RuntimeError('No remote hosts specified') |
| if not self.benchmarks: |
| raise RuntimeError('No benchmarks specified') |
| if not self.labels: |
| raise RuntimeError('No labels specified') |
| |
| # We need one chromeos_root to run the benchmarks in, but it doesn't |
| # matter where it is, unless the ABIs are different. |
| if not chromeos_root: |
| for label in self.labels: |
| if label.chromeos_root: |
| chromeos_root = label.chromeos_root |
| break |
| if not chromeos_root: |
| raise RuntimeError('No chromeos_root given and could not determine ' |
| 'one from the image path.') |
| |
| machine_manager_fn = MachineManager |
| if test_flag.GetTestMode(): |
| machine_manager_fn = MockMachineManager |
| self.machine_manager = machine_manager_fn(chromeos_root, acquire_timeout, |
| log_level, locks_directory) |
| self.l = logger.GetLogger(log_dir) |
| |
| for machine in self.remote: |
| # machine_manager.AddMachine only adds reachable machines. |
| self.machine_manager.AddMachine(machine) |
| # Now machine_manager._all_machines contains a list of reachable |
| # machines. This is a subset of self.remote. We make both lists the same. |
| self.remote = [m.name for m in self.machine_manager.GetAllMachines()] |
| if not self.remote: |
| raise RuntimeError('No machine available for running experiment.') |
| |
| for label in labels: |
| # We filter out label remotes that are not reachable (not in |
| # self.remote). So each label.remote is a sublist of experiment.remote. |
| label.remote = [r for r in label.remote if r in self.remote] |
| try: |
| self.machine_manager.ComputeCommonCheckSum(label) |
| except BadChecksum: |
| # Force same image on all machines, then we do checksum again. No |
| # bailout if checksums still do not match. |
| self.machine_manager.ForceSameImageToAllMachines(label) |
| self.machine_manager.ComputeCommonCheckSum(label) |
| |
| self.machine_manager.ComputeCommonCheckSumString(label) |
| |
| self.start_time = None |
| self.benchmark_runs = self._GenerateBenchmarkRuns() |
| |
| self._schedv2 = None |
| self._internal_counter_lock = Lock() |
| |
| def set_schedv2(self, schedv2): |
| self._schedv2 = schedv2 |
| |
| def schedv2(self): |
| return self._schedv2 |
| |
| def _GenerateBenchmarkRuns(self): |
| """Generate benchmark runs from labels and benchmark defintions.""" |
| benchmark_runs = [] |
| for label in self.labels: |
| for benchmark in self.benchmarks: |
| for iteration in xrange(1, benchmark.iterations + 1): |
| |
| benchmark_run_name = '%s: %s (%s)' % (label.name, benchmark.name, |
| iteration) |
| full_name = '%s_%s_%s' % (label.name, benchmark.name, iteration) |
| logger_to_use = logger.Logger(self.log_dir, 'run.%s' % (full_name), |
| True) |
| benchmark_runs.append( |
| benchmark_run.BenchmarkRun( |
| benchmark_run_name, benchmark, label, iteration, |
| self.cache_conditions, self.machine_manager, logger_to_use, |
| self.log_level, self.share_cache, self.enable_aslr)) |
| |
| return benchmark_runs |
| |
| def Build(self): |
| pass |
| |
| def Terminate(self): |
| if self._schedv2 is not None: |
| self._schedv2.terminate() |
| else: |
| for t in self.benchmark_runs: |
| if t.isAlive(): |
| self.l.LogError("Terminating run: '%s'." % t.name) |
| t.Terminate() |
| |
| def IsComplete(self): |
| if self._schedv2: |
| return self._schedv2.is_complete() |
| if self.active_threads: |
| for t in self.active_threads: |
| if t.isAlive(): |
| t.join(0) |
| if not t.isAlive(): |
| self.num_complete += 1 |
| if not t.cache_hit: |
| self.num_run_complete += 1 |
| self.active_threads.remove(t) |
| return False |
| return True |
| |
| def BenchmarkRunFinished(self, br): |
| """Update internal counters after br finishes. |
| |
| Note this is only used by schedv2 and is called by multiple threads. |
| Never throw any exception here. |
| """ |
| |
| assert self._schedv2 is not None |
| with self._internal_counter_lock: |
| self.num_complete += 1 |
| if not br.cache_hit: |
| self.num_run_complete += 1 |
| |
| def Run(self): |
| self.start_time = time.time() |
| if self._schedv2 is not None: |
| self._schedv2.run_sched() |
| else: |
| self.active_threads = [] |
| for run in self.benchmark_runs: |
| # Set threads to daemon so program exits when ctrl-c is pressed. |
| run.daemon = True |
| run.start() |
| self.active_threads.append(run) |
| |
| def SetCacheConditions(self, cache_conditions): |
| for run in self.benchmark_runs: |
| run.SetCacheConditions(cache_conditions) |
| |
| def Cleanup(self): |
| """Make sure all machines are unlocked.""" |
| if self.locks_dir: |
| # We are using the file locks mechanism, so call machine_manager.Cleanup |
| # to unlock everything. |
| self.machine_manager.Cleanup() |
| else: |
| if test_flag.GetTestMode(): |
| return |
| |
| all_machines = self.locked_machines |
| if not all_machines: |
| return |
| |
| # If we locked any machines earlier, make sure we unlock them now. |
| lock_mgr = afe_lock_machine.AFELockManager( |
| all_machines, '', self.labels[0].chromeos_root, None) |
| machine_states = lock_mgr.GetMachineStates('unlock') |
| for k, state in machine_states.iteritems(): |
| if state['locked']: |
| lock_mgr.UpdateLockInAFE(False, k) |
