def main(hparams, cluster, results_dict):
"""
Main training routine specific for this project
:param hparams:
:return:
"""
# ------------------------
# 1 INIT LIGHTNING MODEL
# ------------------------
print('loading model...')
model = LightningTemplateModel(hparams)
print('model built')
# ------------------------
# 2 INIT TEST TUBE EXP
# ------------------------
# when using grid search, it's possible for all models to start at once
# and use the same test tube experiment version
relative_node_id = int(os.environ['SLURM_NODEID'])
sleep(relative_node_id + 1)
# init experiment
exp = Experiment(name=hyperparams.experiment_name,
save_dir=hyperparams.test_tube_save_path,
autosave=False,
description='test demo')
exp.argparse(hparams)
exp.save()
# ------------------------
# 3 DEFINE CALLBACKS
# ------------------------
model_save_path = '{}/{}/{}'.format(hparams.model_save_path, exp.name,
exp.version)
early_stop = EarlyStopping(monitor='val_acc',
patience=3,
verbose=True,
mode='max')
checkpoint = ModelCheckpoint(filepath=model_save_path,
save_best_only=True,
verbose=True,
monitor='val_loss',
mode='min')
# ------------------------
# 4 INIT TRAINER
# ------------------------
trainer = Trainer(experiment=exp,
cluster=cluster,
checkpoint_callback=checkpoint,
early_stop_callback=early_stop,
gpus=hparams.gpus,
nb_gpu_nodes=hyperparams.nb_gpu_nodes)
# ------------------------
# 5 START TRAINING
# ------------------------
trainer.fit(model)
def main(hparams):
"""
Main training routine specific for this project
:param hparams:
:return:
"""
# ------------------------
# 1 INIT LIGHTNING MODEL
# ------------------------
print('loading model...')
model = LightningTemplateModel(hparams)
print('model built')
# ------------------------
# 2 INIT TEST TUBE EXP
# ------------------------
# init experiment
exp = Experiment(name=hyperparams.experiment_name,
save_dir=hyperparams.test_tube_save_path,
autosave=False,
description='test demo')
exp.argparse(hparams)
exp.save()
# ------------------------
# 3 DEFINE CALLBACKS
# ------------------------
model_save_path = '{}/{}/{}'.format(hparams.model_save_path, exp.name,
exp.version)
early_stop = EarlyStopping(monitor='val_acc',
patience=3,
verbose=True,
mode='max')
checkpoint = ModelCheckpoint(filepath=model_save_path,
save_best_only=True,
verbose=True,
monitor='val_loss',
mode='min')
# ------------------------
# 4 INIT TRAINER
# ------------------------
trainer = Trainer(
experiment=exp,
checkpoint_callback=checkpoint,
early_stop_callback=early_stop,
gpus=hparams.gpus,
)
# ------------------------
# 5 START TRAINING
# ------------------------
trainer.fit(model)
def main(hparams):
"""
Main training routine specific for this project
:param hparams:
:return:
"""
# init experiment
exp = Experiment(name=hparams.tt_name,
debug=hparams.debug,
save_dir=hparams.tt_save_path,
version=hparams.hpc_exp_number,
autosave=False,
description=hparams.tt_description)
exp.argparse(hparams)
exp.save()
# build model
model = LightningTemplateModel(hparams)
# callbacks
early_stop = EarlyStopping(
monitor='val_acc',
patience=3,
mode='min',
verbose=True,
)
model_save_path = '{}/{}/{}'.format(hparams.model_save_path, exp.name,
exp.version)
checkpoint = ModelCheckpoint(filepath=model_save_path,
save_best_only=True,
verbose=True,
monitor='val_acc',
mode='min')
# configure trainer
trainer = Trainer(
experiment=exp,
checkpoint_callback=checkpoint,
early_stop_callback=early_stop,
)
# train model
trainer.fit(model)
parent_parser.add_argument(
'--gpus',
type=str,
default='-1',
help=
'how many gpus to use in the node. -1 uses all the gpus on the node')
parent_parser.add_argument('--test_tube_save_path',
type=str,
default=test_tube_dir,
help='where to save logs')
parent_parser.add_argument('--model_save_path',
type=str,
default=checkpoint_dir,
help='where to save model')
parent_parser.add_argument('--experiment_name',
type=str,
default='pt_lightning_exp_a',
help='test tube exp name')
# allow model to overwrite or extend args
parser = LightningTemplateModel.add_model_specific_args(
parent_parser, root_dir)
hyperparams = parser.parse_args()
# ---------------------
# RUN TRAINING
# ---------------------
# run on HPC cluster
print(f'RUNNING INTERACTIVE MODE ON GPUS. gpu ids: {hyperparams.gpus}')
main(hyperparams)