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# modified from https://github.com/feng-yufei/shared_debugging_code/blob/main/model/t2s_lightning_module.py | |
import os,sys | |
now_dir = os.getcwd() | |
sys.path.append(now_dir) | |
from typing import Dict | |
import torch | |
from pytorch_lightning import LightningModule | |
from AR.models.t2s_model import Text2SemanticDecoder | |
from AR.modules.lr_schedulers import WarmupCosineLRSchedule | |
from AR.modules.optim import ScaledAdam | |
class Text2SemanticLightningModule(LightningModule): | |
def __init__(self, config, output_dir,is_train=True): | |
super().__init__() | |
self.config = config | |
self.top_k = 3 | |
self.model = Text2SemanticDecoder(config=config, top_k=self.top_k) | |
pretrained_s1=config.get("pretrained_s1") | |
if(pretrained_s1 and is_train): | |
# print(self.load_state_dict(torch.load(pretrained_s1,map_location="cpu")["state_dict"])) | |
print(self.load_state_dict(torch.load(pretrained_s1,map_location="cpu")["weight"])) | |
if is_train: | |
self.automatic_optimization = False | |
self.save_hyperparameters() | |
self.eval_dir = output_dir / 'eval' | |
self.eval_dir.mkdir(parents=True, exist_ok=True) | |
def training_step(self, batch: Dict, batch_idx: int): | |
opt = self.optimizers() | |
scheduler = self.lr_schedulers() | |
loss, acc = self.model.forward( | |
batch['phoneme_ids'], batch['phoneme_ids_len'], | |
batch['semantic_ids'], batch['semantic_ids_len'], | |
batch['bert_feature']) | |
self.manual_backward(loss) | |
if batch_idx > 0 and batch_idx % 4 == 0: | |
opt.step() | |
opt.zero_grad() | |
scheduler.step() | |
self.log( | |
"total_loss", | |
loss, | |
on_step=True, | |
on_epoch=True, | |
prog_bar=True, | |
sync_dist=True) | |
self.log( | |
"lr", | |
scheduler.get_last_lr()[0], | |
on_epoch=True, | |
prog_bar=True, | |
sync_dist=True) | |
self.log( | |
f"top_{self.top_k}_acc", | |
acc, | |
on_step=True, | |
on_epoch=True, | |
prog_bar=True, | |
sync_dist=True) | |
def validation_step(self, batch: Dict, batch_idx: int):return | |
# # get loss | |
# loss, acc = self.model.forward( | |
# batch['phoneme_ids'], batch['phoneme_ids_len'], | |
# batch['semantic_ids'], batch['semantic_ids_len'], | |
# batch['bert_feature'] | |
# ) | |
# | |
# self.log( | |
# "val_total_loss", | |
# loss, | |
# on_step=True, | |
# on_epoch=True, | |
# prog_bar=True, | |
# sync_dist=True) | |
# self.log( | |
# f"val_top_{self.top_k}_acc", | |
# acc, | |
# on_step=True, | |
# on_epoch=True, | |
# prog_bar=True, | |
# sync_dist=True) | |
# | |
# # get infer output | |
# semantic_len = batch['semantic_ids'].size(1) | |
# prompt_len = min(int(semantic_len * 0.5), 150) | |
# prompt = batch['semantic_ids'][:, :prompt_len] | |
# pred_semantic = self.model.infer(batch['phoneme_ids'], | |
# batch['phoneme_ids_len'], prompt, | |
# batch['bert_feature'] | |
# ) | |
# save_name = f'semantic_toks_{batch_idx}.pt' | |
# save_path = os.path.join(self.eval_dir, save_name) | |
# torch.save(pred_semantic.detach().cpu(), save_path) | |
def configure_optimizers(self): | |
model_parameters = self.model.parameters() | |
parameters_names = [] | |
parameters_names.append([ | |
name_param_pair[0] | |
for name_param_pair in self.model.named_parameters() | |
]) | |
lm_opt = ScaledAdam( | |
model_parameters, | |
lr=0.01, | |
betas=(0.9, 0.95), | |
clipping_scale=2.0, | |
parameters_names=parameters_names, | |
show_dominant_parameters=False, | |
clipping_update_period=1000, ) | |
return { | |
"optimizer": lm_opt, | |
"lr_scheduler": { | |
"scheduler": | |
WarmupCosineLRSchedule( | |
lm_opt, | |
init_lr=self.config['optimizer']['lr_init'], | |
peak_lr=self.config['optimizer']['lr'], | |
end_lr=self.config['optimizer']['lr_end'], | |
warmup_steps=self.config['optimizer']['warmup_steps'], | |
total_steps=self.config['optimizer']['decay_steps']) | |
} | |
} | |