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import os
import argparse
import torch
from torch.optim import lr_scheduler
from diffusion.logger import utils
from diffusion.data_loaders import get_data_loaders
from diffusion.solver import train
from diffusion.unit2mel import Unit2Mel
from diffusion.vocoder import Vocoder
def parse_args(args=None, namespace=None):
"""Parse command-line arguments."""
parser = argparse.ArgumentParser()
parser.add_argument(
"-c",
"--config",
type=str,
required=True,
help="path to the config file")
return parser.parse_args(args=args, namespace=namespace)
if __name__ == '__main__':
# parse commands
cmd = parse_args()
# load config
args = utils.load_config(cmd.config)
print(' > config:', cmd.config)
print(' > exp:', args.env.expdir)
# load vocoder
vocoder = Vocoder(args.vocoder.type, args.vocoder.ckpt, device=args.device)
# load model
model = Unit2Mel(
args.data.encoder_out_channels,
args.model.n_spk,
args.model.use_pitch_aug,
vocoder.dimension,
args.model.n_layers,
args.model.n_chans,
args.model.n_hidden)
# load parameters
optimizer = torch.optim.AdamW(model.parameters())
initial_global_step, model, optimizer = utils.load_model(args.env.expdir, model, optimizer, device=args.device)
for param_group in optimizer.param_groups:
param_group['initial_lr'] = args.train.lr
param_group['lr'] = args.train.lr * (args.train.gamma ** max(((initial_global_step-2)//args.train.decay_step),0) )
param_group['weight_decay'] = args.train.weight_decay
scheduler = lr_scheduler.StepLR(optimizer, step_size=args.train.decay_step, gamma=args.train.gamma,last_epoch=initial_global_step-2)
# device
if args.device == 'cuda':
torch.cuda.set_device(args.env.gpu_id)
model.to(args.device)
for state in optimizer.state.values():
for k, v in state.items():
if torch.is_tensor(v):
state[k] = v.to(args.device)
# datas
loader_train, loader_valid = get_data_loaders(args, whole_audio=False)
# run
train(args, initial_global_step, model, optimizer, scheduler, vocoder, loader_train, loader_valid)