def main(args, unknown_args):
args, config = parse_args_uargs(args, unknown_args)
set_global_seed(args.seed)
prepare_cudnn(args.deterministic, args.benchmark)
if args.logdir is not None:
os.makedirs(args.logdir, exist_ok=True)
dump_environment(config, args.logdir, args.configs)
if args.expdir is not None:
module = import_module(expdir=args.expdir) # noqa: F841
if args.logdir is not None:
dump_code(args.expdir, args.logdir)
env = ENVIRONMENTS.get_from_params(**config["environment"])
algorithm_name = config["algorithm"].pop("algorithm")
if algorithm_name in OFFPOLICY_ALGORITHMS_NAMES:
ALGORITHMS = OFFPOLICY_ALGORITHMS
trainer_fn = OffpolicyTrainer
sync_epoch = False
elif algorithm_name in ONPOLICY_ALGORITHMS_NAMES:
ALGORITHMS = ONPOLICY_ALGORITHMS
trainer_fn = OnpolicyTrainer
sync_epoch = True
else:
# @TODO: add registry for algorithms, trainers, samplers
raise NotImplementedError()
db_server = DATABASES.get_from_params(
**config.get("db", {}), sync_epoch=sync_epoch
)
algorithm_fn = ALGORITHMS.get(algorithm_name)
algorithm = algorithm_fn.prepare_for_trainer(env_spec=env, config=config)
if args.resume is not None:
checkpoint = utils.load_checkpoint(filepath=args.resume)
checkpoint = utils.any2device(checkpoint, utils.get_device())
algorithm.unpack_checkpoint(
checkpoint=checkpoint,
with_optimizer=False
)
monitoring_params = config.get("monitoring_params", None)
trainer = trainer_fn(
algorithm=algorithm,
env_spec=env,
db_server=db_server,
logdir=args.logdir,
monitoring_params=monitoring_params,
**config["trainer"],
)
trainer.run()
def work(self):
args, config = self.parse_args_uargs()
set_global_seed(args.seed)
Experiment, R = import_experiment_and_runner(Path(args.expdir))
runner_params = config.pop('runner_params', {})
experiment = Experiment(config)
runner: Runner = R(**runner_params)
self.experiment = experiment
self.runner = runner
stages = experiment.stages[:]
if self.task.parent:
self.parent = self.task_provider.by_id(self.task.parent)
if self.master:
task = self.get_parent_task()
task.steps = len(stages)
self.task_provider.commit()
self._checkpoint_fix_config(experiment)
self._fix_memory(experiment)
_get_callbacks = experiment.get_callbacks
def get_callbacks(stage):
res = self.callbacks()
for k, v in _get_callbacks(stage).items():
res[k] = v
self._checkpoint_fix_callback(res)
return res
experiment.get_callbacks = get_callbacks
if experiment.logdir is not None:
dump_environment(config, experiment.logdir, args.configs)
if self.distr_info:
info = yaml_load(self.task.additional_info)
info['resume'] = {
'master_computer': self.distr_info['master_computer'],
'master_task_id': self.task.id - self.distr_info['rank'],
'load_best': True
}
self.task.additional_info = yaml_dump(info)
self.task_provider.commit()
experiment.stages_config = {
k: v
for k, v in experiment.stages_config.items()
if k == experiment.stages[0]
}
runner.run_experiment(experiment)
if runner.state.exception:
raise runner.state.exception
if self.master and self.trace:
traced = trace_model_from_checkpoint(self.experiment.logdir, self)
torch.jit.save(traced, self.trace)
return {'stage': experiment.stages[-1], 'stages': stages}