def create_experiment(args):
'''start a new experiment'''
experiment_id = ''.join(random.sample(string.ascii_letters + string.digits, 8))
config_path = os.path.abspath(args.config)
if not os.path.exists(config_path):
print_error('Please set correct config path!')
exit(1)
config_yml = get_yml_content(config_path)
if 'trainingServicePlatform' in config_yml:
_validate_v1(config_yml, config_path)
platform = config_yml['trainingServicePlatform']
if platform in k8s_training_services:
schema = 1
config_v1 = config_yml
else:
schema = 2
from nni.experiment.config import convert
config_v2 = convert.to_v2(config_yml).json()
else:
config_v2 = _validate_v2(config_yml, config_path)
schema = 2
try:
if schema == 1:
launch_experiment(args, config_v1, 'new', experiment_id, 1)
else:
launch_experiment(args, config_v2, 'new', experiment_id, 2)
except Exception as exception:
restServerPid = Experiments().get_all_experiments().get(experiment_id, {}).get('pid')
if restServerPid:
kill_command(restServerPid)
print_error(exception)
exit(1)
def create_experiment(args):
'''start a new experiment'''
experiment_id = ''.join(random.sample(string.ascii_letters + string.digits, 8))
config_path = os.path.abspath(args.config)
if not os.path.exists(config_path):
print_error('Please set correct config path!')
exit(1)
config_yml = get_yml_content(config_path)
try:
config = ExperimentConfig(_base_path=Path(config_path).parent, **config_yml)
config_v2 = config.json()
except Exception as error_v2:
print_warning('Validation with V2 schema failed. Trying to convert from V1 format...')
try:
validate_all_content(config_yml, config_path)
except Exception as error_v1:
print_error(f'Convert from v1 format failed: {repr(error_v1)}')
print_error(f'Config in v2 format validation failed: {repr(error_v2)}')
exit(1)
from nni.experiment.config import convert
config_v2 = convert.to_v2(config_yml).json()
try:
if getattr(config_v2['trainingService'], 'platform', None) in k8s_training_services:
launch_experiment(args, config_yml, 'new', experiment_id, 1)
else:
launch_experiment(args, config_v2, 'new', experiment_id, 2)
except Exception as exception:
restServerPid = Experiments().get_all_experiments().get(experiment_id, {}).get('pid')
if restServerPid:
kill_command(restServerPid)
print_error(exception)
exit(1)
def create_experiment(args):
# to make it clear what are inside args
config_file = Path(args.config)
port = args.port
debug = args.debug
url_prefix = args.url_prefix
foreground = args.foreground
# it should finally be done in nnictl main function
# but for now don't break routines without logging support
init_logger_for_command_line()
logging.getLogger('nni').setLevel(logging.INFO)
if not config_file.is_file():
_logger.error(f'"{config_file}" is not a valid file.')
exit(1)
with config_file.open() as config:
config_content = yaml.safe_load(config)
v1_platform = config_content.get('trainingServicePlatform')
if v1_platform:
can_convert = True
if v1_platform == 'adl':
can_convert = False
if v1_platform in ['kubeflow', 'frameworkcontroller']:
reuse = config_content.get(v1_platform + 'Config', {}).get('reuse')
can_convert = (
reuse != False
) # if user does not explicitly specify it, convert to reuse mode
if not can_convert:
legacy_launcher.create_experiment(args)
exit()
try:
v2_config = convert.to_v2(config_content)
except Exception:
_logger.error(
'You are using legacy config format with incorrect fields or values, '
'to get more accurate error message please update it to the new format.'
)
_logger.error(
'Reference: https://nni.readthedocs.io/en/stable/reference/experiment_config.html'
)
exit(1)
_logger.warning(
f'You are using legacy config file, please update it to latest format:'
)
# use `print` here because logging will add timestamp and make it hard to copy paste
print(Fore.YELLOW + '=' * 80 + Fore.RESET)
print(yaml.dump(v2_config, sort_keys=False).strip())
print(Fore.YELLOW + '=' * 80 + Fore.RESET)
print(
Fore.YELLOW +
'Reference: https://nni.readthedocs.io/en/stable/reference/experiment_config.html'
+ Fore.RESET)
utils.set_base_path(config_file.parent)
config = ExperimentConfig(**v2_config)
utils.unset_base_path()
else:
config = ExperimentConfig.load(config_file)
if config.use_annotation:
path = Path(tempfile.gettempdir(), getuser(), 'nni', 'annotation')
path.mkdir(parents=True, exist_ok=True)
path = tempfile.mkdtemp(dir=path)
code_dir = expand_annotations(config.trial_code_directory, path)
config.trial_code_directory = code_dir
config.search_space = generate_search_space(code_dir)
assert config.search_space, 'ERROR: Generated search space is empty'
config.use_annotation = False
exp = Experiment(config)
exp.url_prefix = url_prefix
run_mode = RunMode.Foreground if foreground else RunMode.Detach
exp.start(port, debug, run_mode)
_logger.info(
f'To stop experiment run "nnictl stop {exp.id}" or "nnictl stop --all"'
)
_logger.info(
'Reference: https://nni.readthedocs.io/en/stable/Tutorial/Nnictl.html')