Files
SayanoAI-Comfy-RVC/training_cli.py
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Python

from collections import OrderedDict
import json
import os
import shutil
import traceback
from typing import Tuple
import numpy as np
from tqdm import tqdm
from .lib.audio import SR_MAP
from .lib.train import utils
import datetime
from random import shuffle, randint
import torch
torch.backends.cudnn.deterministic = False
torch.backends.cudnn.benchmark = False
from torch.nn import functional as F
from torch.utils.data import DataLoader
from torch.utils.tensorboard import SummaryWriter
import torch.multiprocessing as mp
import torch.distributed as dist
from torch.nn.parallel import DistributedDataParallel as DDP
from torch.cuda.amp import autocast, GradScaler
from .lib.infer_pack import commons
from time import sleep
from time import time as ttime
from .lib.train.data_utils import (
BucketSampler,
TextAudioLoaderMultiNSFsid,
TextAudioLoader,
TextAudioCollateMultiNSFsid,
TextAudioCollate,
DistributedBucketSampler,
)
from .lib.train.losses import LossBalancer, MultiScaleMelSpectrogramLoss, combined_aux_loss, generator_loss, discriminator_loss, feature_loss, gradient_norm_loss, kl_loss
from .lib.train.mel_processing import mel_spectrogram_torch, spec_to_mel_torch
def save_checkpoint(ckpt, name, epoch, hps, model_path=None):
try:
opt = OrderedDict()
opt["weight"] = {}
for key in ckpt.keys():
if "enc_q" in key:
continue
opt["weight"][key] = ckpt[key].half()
opt["config"] = [
hps.data.filter_length // 2 + 1,
32,
hps.model.inter_channels,
hps.model.hidden_channels,
hps.model.filter_channels,
hps.model.n_heads,
hps.model.n_layers,
hps.model.kernel_size,
hps.model.p_dropout,
hps.model.resblock,
hps.model.resblock_kernel_sizes,
hps.model.resblock_dilation_sizes,
hps.model.upsample_rates,
hps.model.upsample_initial_channel,
hps.model.upsample_kernel_sizes,
hps.model.spk_embed_dim,
hps.model.gin_channels,
hps.data.sampling_rate,
]
opt["info"] = "%sepoch" % epoch
opt["sr"] = hps.sample_rate
opt["f0"] = hps.if_f0
opt["version"] = hps.version
if model_path is None: model_path=os.path.join(hps.model_dir,name+".pth")
torch.save(opt, model_path)
return "Success."
except:
return traceback.format_exc()
class EpochRecorder:
def __init__(self):
self.last_time = ttime()
def record(self):
now_time = ttime()
elapsed_time = now_time - self.last_time
self.last_time = now_time
elapsed_time_str = str(datetime.timedelta(seconds=elapsed_time))
current_time = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
return f"[{current_time}] | ({elapsed_time_str})"
def train_model(hps: "utils.HParams"):
os.environ["CUDA_VISIBLE_DEVICES"] = hps.gpus.replace("-", ",")
os.environ["NCCL_P2P_DISABLE"] = "1"
os.environ["MASTER_ADDR"] = "localhost"
os.environ["MASTER_PORT"] = str(randint(8189, 8205+hps.train.num_workers**2))
os.environ["PYTORCH_CUDA_ALLOC_CONF"] = "max_split_size_mb:128,garbage_collection_threshold:0.8"
n_gpus = len(hps.gpus.split("-")) if hps.gpus else torch.cuda.device_count()
if not torch.cuda.is_available() and torch.backends.mps.is_available():
n_gpus = 1
if n_gpus < 1:
# patch to unblock people without gpus. there is probably a better way.
print("NO GPU DETECTED: falling back to CPU - this may take a while")
n_gpus = 1
gpu_devices = hps.gpus.split("-") if hps.gpus else range(n_gpus)
children = {}
for i, device in enumerate(gpu_devices):
subproc = mp.Process(
target=run,
args=(
i,
n_gpus,
hps,
device
),
)
children[i]=subproc
subproc.start()
for i in children:
children[i].join()
def run(rank, n_gpus, hps, device):
print(f"{__name__=}")
global global_step, least_loss, loss_file, best_model_name, gradient_clip_value, MultiscaleMelLoss
global_step = 0
loss_file = os.path.join(hps.model_dir,"losses.json")
gradient_clip_value = np.log(hps.train.c_gp/hps.train.learning_rate) if hps.train.get("c_gp",0.)>0 else None
if os.path.isfile(loss_file):
with open(loss_file,"r") as f:
data: dict = json.load(f)
least_loss = data.get("least_loss",hps.best_model_threshold)
best_model_name = data.get("best_model_name","")
else:
least_loss = hps.best_model_threshold
best_model_name = ""
if hps.version == "v1":
from .lib.infer_pack.models import (
SynthesizerTrnMs256NSFsid as RVC_Model_f0,
SynthesizerTrnMs256NSFsid_nono as RVC_Model_nof0,
MultiPeriodDiscriminator,
)
else:
from .lib.infer_pack.models import (
SynthesizerTrnMs768NSFsid as RVC_Model_f0,
SynthesizerTrnMs768NSFsid_nono as RVC_Model_nof0,
MultiPeriodDiscriminatorV2 as MultiPeriodDiscriminator,
)
if rank == 0:
logger = utils.get_logger(hps.model_dir)
logger.info(hps)
writer = SummaryWriter(log_dir=hps.model_dir)
# writer_eval = SummaryWriter(log_dir=os.path.join(hps.model_dir, "eval"))
if n_gpus>1:
try:
dist.init_process_group(backend="gloo", init_method="env://", world_size=n_gpus, rank=rank)
distributed = True
except Exception as error:
print(f"Failed to initialize dist: {error=}")
distributed = False
else: distributed=False
torch.manual_seed(hps.train.seed)
if torch.cuda.is_available():
torch.cuda.set_device(f"cuda:{device}")
if hps.if_f0:
train_dataset = TextAudioLoaderMultiNSFsid(hps.data.training_files, hps.data)
else:
train_dataset = TextAudioLoader(hps.data.training_files, hps.data)
if distributed:
train_sampler = DistributedBucketSampler(
train_dataset,
hps.train.batch_size * n_gpus,
[100, 200, 300, 400, 500, 600, 700, 800, 900], # 16s
num_replicas=n_gpus,
rank=rank,
shuffle=True,
)
else:
train_sampler = BucketSampler(
train_dataset,
hps.train.batch_size,
[100, 200, 300, 400, 500, 600, 700, 800, 900], # 16s
shuffle=True,
)
# It is possible that dataloader's workers are out of shared memory. Please try to raise your shared memory limit.
# num_workers=8 -> num_workers=4
if hps.if_f0:
collate_fn = TextAudioCollateMultiNSFsid()
else:
collate_fn = TextAudioCollate()
train_loader = DataLoader(
train_dataset,
num_workers=hps.train.num_workers,
shuffle=False,
pin_memory=True,
collate_fn=collate_fn,
batch_sampler=train_sampler,
persistent_workers=True,
prefetch_factor=8,
)
hps.sync_log_interval(len(train_loader))
if hps.if_f0:
net_g = RVC_Model_f0(
hps.data.filter_length // 2 + 1,
hps.train.segment_size // hps.data.hop_length,
**hps.model,
is_half=hps.train.fp16_run,
sr=hps.sample_rate,
)
else:
net_g = RVC_Model_nof0(
hps.data.filter_length // 2 + 1,
hps.train.segment_size // hps.data.hop_length,
**hps.model,
is_half=hps.train.fp16_run,
)
if torch.cuda.is_available():
net_g = net_g.cuda(rank)
net_d = MultiPeriodDiscriminator(hps.model.use_spectral_norm)
if torch.cuda.is_available():
net_d = net_d.cuda(rank)
optim_g = torch.optim.AdamW(
net_g.parameters(),
hps.train.learning_rate,
betas=hps.train.betas,
eps=hps.train.eps,
)
optim_d = torch.optim.AdamW(
net_d.parameters(),
hps.train.learning_rate,
betas=hps.train.betas,
eps=hps.train.eps,
)
if distributed:
if torch.cuda.is_available():
net_g = DDP(net_g, device_ids=[rank])
net_d = DDP(net_d, device_ids=[rank])
else:
net_g = DDP(net_g)
net_d = DDP(net_d)
try: # resume training
_, _, _, epoch_str, d_kwargs = utils.load_checkpoint(utils.latest_checkpoint_path(hps.model_dir, "D_*.pth"), net_d, optim_d)
if rank == 0: logger.info("loaded D")
_, _, _, epoch_str, g_kwargs = utils.load_checkpoint(utils.latest_checkpoint_path(hps.model_dir, "G_*.pth"), net_g, optim_g)
if rank == 0: logger.info("loaded G")
global_step = (epoch_str - 1) * len(train_loader)
except Exception as e:
logger.error(f"Failed to load saved pretrains: {e}")
epoch_str = 1
global_step = 0
if hps.pretrainG != "":
if rank == 0:
logger.info("loaded pretrained %s" % (hps.pretrainG))
if hasattr(net_g,"module"): print(net_g.module.load_state_dict(torch.load(hps.pretrainG, map_location="cpu")["model"]))
else: print(net_g.load_state_dict(torch.load(hps.pretrainG, map_location="cpu")["model"]))
if hps.pretrainD != "":
if rank == 0:
logger.info("loaded pretrained %s" % (hps.pretrainD))
if hasattr(net_d,"module"): print(net_d.module.load_state_dict(torch.load(hps.pretrainD, map_location="cpu")["model"]))
else: print(net_d.load_state_dict(torch.load(hps.pretrainD, map_location="cpu")["model"]))
d_kwargs = g_kwargs = {}
scheduler_g = torch.optim.lr_scheduler.ExponentialLR(
optim_g, gamma=hps.train.lr_decay, last_epoch=epoch_str - 2
)
scheduler_d = torch.optim.lr_scheduler.ExponentialLR(
optim_d, gamma=hps.train.lr_decay, last_epoch=epoch_str - 2
)
scaler = GradScaler(enabled=hps.train.fp16_run)
if hps.train.get("use_multiscale"):
try:
msml_dict = g_kwargs["msml"]
MultiscaleMelLoss = MultiScaleMelSpectrogramLoss(**msml_dict)
except Exception as e:
logger.error(f"Failed to load MultiScaleMelSpectrogramLoss state: {e}")
MultiscaleMelLoss = MultiScaleMelSpectrogramLoss(
hps.data.sampling_rate,
adjustment_factor=min(1./len(train_loader),.05),
epsilon=hps.train.eps)
try:
balancer_state = g_kwargs["balancer"]
logger.info(f"Using existing balancer: {balancer_state}")
balancer_g = LossBalancer(net_g,**balancer_state)
except Exception as e:
logger.error(f"Failed to load balancer state: {e}")
balancer_g = LossBalancer(
net_g,
weights_decay=.5 / (1 + np.exp(-10 * (epoch_str / hps.total_epoch - 0.16)))+.5, #sigmoid scaled ema .8 at 20% epoch
loss_decay=.8,
epsilon=hps.train.eps,
active=hps.train.get("use_balancer",False),
use_pareto=hps.train.get("use_pareto",False),
use_norm=not hps.train.get("fast_mode",False),
initial_weights=dict(
loss_gen=hps.train.get("c_adv",1.),
loss_fm=hps.train.get("c_fm",2.),
loss_mel=hps.train.get("c_mel",45.),
loss_kl=hps.train.get("c_kl",1.),
harmonic_loss=hps.train.get("c_hd",0.),
tsi_loss=hps.train.get("c_tsi",0.),
tefs_loss=hps.train.get("c_tefs",0.),
))
try:
balancer_state = d_kwargs["balancer"]
logger.info(f"Using existing balancer: {balancer_state}")
balancer_d = LossBalancer(net_d,**balancer_state)
except Exception as e:
logger.error(f"Failed to load balancer state: {e}")
balancer_d = LossBalancer(
net_d,
weights_decay=.5 / (1 + np.exp(-10 * (epoch_str / hps.total_epoch - 0.16)))+.5, #sigmoid scaled ema .8 at 20% epoch
loss_decay=.8,
epsilon=hps.train.eps,
active=hps.train.get("use_balancer",False),
use_pareto=hps.train.get("use_pareto",False),
use_norm=not hps.train.get("fast_mode",False),
initial_weights=dict(
loss_disc=hps.train.get("c_adv",1.),
gradient_penalty=hps.train.get("c_gp",0.),
))
cache = []
for epoch in range(epoch_str, hps.train.epochs + 1):
train_loader.batch_sampler.set_epoch(epoch)
if rank == 0:
train_and_evaluate(
rank,
epoch,
hps,
[net_g, net_d],
[optim_g, optim_d],
[scheduler_g, scheduler_d],
scaler,
[train_loader, None],
logger,
[writer, None],
cache,
[balancer_g, balancer_d]
)
else:
train_and_evaluate(
rank,
epoch,
hps,
[net_g, net_d],
[optim_g, optim_d],
[scheduler_g, scheduler_d],
scaler,
[train_loader, None],
None,
None,
cache,
[balancer_g, balancer_d]
)
scheduler_g.step()
scheduler_d.step()
def train_and_evaluate(
rank, epoch, hps, nets, optims, _, scaler, loaders, logger, writers, cache, balancer: Tuple["LossBalancer","LossBalancer"]
):
net_g, net_d = nets
optim_g, optim_d = optims
train_loader, _ = loaders
if writers is not None:
writer, _ = writers
global global_step, least_loss, loss_file, best_model_name, gradient_clip_value, MultiscaleMelLoss
net_g.train()
net_d.train()
balancer_g, balancer_d = balancer
# Prepare data iterator
if hps.if_cache_data_in_gpu:
# Use Cache
data_iterator = cache
if cache == []:
# Make new cache
for batch_idx, info in enumerate(train_loader):
# Unpack
if hps.if_f0:
(
phone,
phone_lengths,
pitch,
pitchf,
spec,
spec_lengths,
wave,
wave_lengths,
sid,
) = info
else:
(
phone,
phone_lengths,
spec,
spec_lengths,
wave,
wave_lengths,
sid,
) = info
# Load on CUDA
if torch.cuda.is_available():
phone = phone.cuda(rank, non_blocking=True)
phone_lengths = phone_lengths.cuda(rank, non_blocking=True)
if hps.if_f0:
pitch = pitch.cuda(rank, non_blocking=True)
pitchf = pitchf.cuda(rank, non_blocking=True)
sid = sid.cuda(rank, non_blocking=True)
spec = spec.cuda(rank, non_blocking=True)
spec_lengths = spec_lengths.cuda(rank, non_blocking=True)
wave = wave.cuda(rank, non_blocking=True)
wave_lengths = wave_lengths.cuda(rank, non_blocking=True)
# Cache on list
if hps.if_f0:
cache.append(
(
batch_idx,
(
phone,
phone_lengths,
pitch,
pitchf,
spec,
spec_lengths,
wave,
wave_lengths,
sid,
),
)
)
else:
cache.append(
(
batch_idx,
(
phone,
phone_lengths,
spec,
spec_lengths,
wave,
wave_lengths,
sid,
),
)
)
else:
# Load shuffled cache
shuffle(cache)
else:
# Loader
data_iterator = enumerate(train_loader)
# Run steps
epoch_recorder = EpochRecorder()
for batch_idx, info in tqdm(data_iterator,desc=f"[Epoch {epoch}]: "):
# Data
## Unpack
if hps.if_f0:
(
phone,
phone_lengths,
pitch,
pitchf,
spec,
spec_lengths,
wave,
wave_lengths,
sid,
) = info
else:
phone, phone_lengths, spec, spec_lengths, wave, wave_lengths, sid = info
## Load on CUDA
if (not hps.if_cache_data_in_gpu) and torch.cuda.is_available():
phone = phone.cuda(rank, non_blocking=True)
phone_lengths = phone_lengths.cuda(rank, non_blocking=True)
if hps.if_f0:
pitch = pitch.cuda(rank, non_blocking=True)
pitchf = pitchf.cuda(rank, non_blocking=True)
sid = sid.cuda(rank, non_blocking=True)
spec = spec.cuda(rank, non_blocking=True)
spec_lengths = spec_lengths.cuda(rank, non_blocking=True)
wave = wave.cuda(rank, non_blocking=True)
# Calculate
with autocast(enabled=hps.train.fp16_run):
if hps.if_f0:
(
y_hat,
ids_slice,
x_mask,
z_mask,
(z, z_p, m_p, logs_p, m_q, logs_q),
) = net_g(phone, phone_lengths, pitch, pitchf, spec, spec_lengths, sid)
else:
(
y_hat,
ids_slice,
x_mask,
z_mask,
(z, z_p, m_p, logs_p, m_q, logs_q),
) = net_g(phone, phone_lengths, spec, spec_lengths, sid)
mel = spec_to_mel_torch(
spec,
hps.data.filter_length,
hps.data.n_mel_channels,
hps.data.sampling_rate,
hps.data.mel_fmin,
hps.data.mel_fmax,
)
y_mel = commons.slice_segments(
mel, ids_slice, hps.train.segment_size // hps.data.hop_length
)
with autocast(enabled=False):
y_hat_mel = mel_spectrogram_torch(
y_hat,
hps.data.filter_length,
hps.data.n_mel_channels,
hps.data.sampling_rate,
hps.data.hop_length,
hps.data.win_length,
hps.data.mel_fmin,
hps.data.mel_fmax,
)
# if hps.train.fp16_run: y_hat_mel = y_hat_mel.half()
wave_orig = wave.clone()
wave = commons.slice_segments(wave, ids_slice * hps.data.hop_length, hps.train.segment_size) # slice
# Discriminator
gen_wave = y_hat.detach()
y_d_hat_r, y_d_hat_g, _, _ = net_d(wave, gen_wave)
with autocast(enabled=False):
gradient_penalty = gradient_norm_loss(wave,gen_wave, net_d, eps=hps.train.eps)*hps.train.c_gp if hps.train.get("c_gp",0.)>0 else 0
loss_disc, losses_disc = discriminator_loss(y_d_hat_r, y_d_hat_g)
loss_disc_all = balancer_d.on_train_batch_start(dict(
loss_disc=loss_disc,
gradient_penalty=gradient_penalty
),input=y_hat)
optim_d.zero_grad()
scaler.scale(loss_disc_all).backward()
scaler.unscale_(optim_d)
grad_norm_d = commons.clip_grad_value_(net_d.parameters(), gradient_clip_value, batch_size=hps.train.batch_size)
scaler.step(optim_d)
with autocast(enabled=hps.train.fp16_run):
# Generator
y_d_hat_r, y_d_hat_g, fmap_r, fmap_g = net_d(wave, y_hat)
with autocast(enabled=False):
if hps.train.get("use_multiscale"): loss_mel = MultiscaleMelLoss(y_hat, wave)
else: loss_mel = F.l1_loss(y_mel, y_hat_mel)
loss_kl = kl_loss(z_p, logs_q, m_p, logs_p, z_mask)
loss_fm = feature_loss(fmap_r, fmap_g)
harmonic_loss, tefs_loss, tsi_loss = combined_aux_loss(
wave, y_hat,n_mels=hps.data.n_mel_channels,sample_rate=hps.data.sampling_rate,
c_tefs=hps.train.get("c_tefs",0.),
c_hd=hps.train.get("c_hd",0.),
c_tsi=hps.train.get("c_tsi",0.),
n_fft=hps.data.filter_length,
hop_length=hps.data.hop_length,
win_length=hps.data.win_length,
eps=hps.train.eps,
fmin=hps.data.mel_fmin,
fmax=hps.data.mel_fmax,
)
loss_gen, losses_gen = generator_loss(y_d_hat_g)
aux_loss = harmonic_loss + tefs_loss + tsi_loss
loss_gen_all = balancer_g.on_train_batch_start(dict(
loss_gen=loss_gen,
loss_fm=loss_fm,
loss_mel=loss_mel,
loss_kl=loss_kl,
harmonic_loss=harmonic_loss,
tsi_loss=tsi_loss,
tefs_loss=tefs_loss,
),input=y_hat)
optim_g.zero_grad()
scaler.scale(loss_gen_all).backward()
scaler.unscale_(optim_g)
grad_norm_g = commons.clip_grad_value_(net_g.parameters(), gradient_clip_value, batch_size=hps.train.batch_size)
scaler.step(optim_g)
scaler.update()
if rank == 0:
if hps.train.log_interval>0 and global_step % hps.train.log_interval == 0: #tensorboard logging
lr = optim_g.param_groups[0]["lr"]
logger.info(f"Train Epoch: {epoch} [{100.0 * (epoch-1) / hps.total_epoch:.2f}% complete]")
if hps.train.get("use_multiscale"): MultiscaleMelLoss.show_freqs()
# Amor For Tensorboard display
if loss_mel > 75:
loss_mel = 75
if loss_kl > 9:
loss_kl = 9
scalar_dict = {
"total/loss/all": loss_gen_all+loss_disc_all,
"total/loss/gen_all": loss_gen_all,
"total/loss/aux": aux_loss,
"total/loss/disc_all": loss_disc_all,
"total/loss/gen": loss_gen,
"total/loss/disc": loss_disc,
"total/loss/fm": loss_fm,
"total/loss/mel": loss_mel,
"total/loss/kl": loss_kl,
"aux/loss/harmonic": harmonic_loss,
"aux/loss/tefs": tefs_loss,
"aux/loss/tsi": tsi_loss,
"gradient/lr": lr,
"gradient/grad_norm_disc": grad_norm_d,
"gradient/grad_norm_gen": grad_norm_g,
"gradient/gradient_penalty": gradient_penalty,
**{f"loss/g/{i}": v for i, v in enumerate(losses_gen)},
**{f"loss/d/{i}": v for i, v in enumerate(losses_disc)},
**{f"balancer_g/weights/{k}": v for k, v in balancer_g.ema_weights.items()},
**{f"balancer_d/weights/{k}": v for k, v in balancer_d.ema_weights.items()},
}
image_dict = {
"slice/mel_org": utils.plot_spectrogram_to_numpy(y_mel[0].data.cpu().numpy()),
"slice/mel_gen": utils.plot_spectrogram_to_numpy(y_hat_mel[0].data.cpu().numpy()),
"all/mel": utils.plot_spectrogram_to_numpy(mel[0].data.cpu().numpy()),
"slice/diff^2": utils.plot_spectrogram_to_numpy((y_mel[0]-y_hat_mel[0]).pow(2).data.cpu().numpy(), cmap="hot")
}
with torch.no_grad():
if hasattr(net_g, "module"): inference = net_g.module.infer
else: inference = net_g.infer
if hps.if_f0: wave_gen = inference(phone, phone_lengths, pitch, pitchf, sid)[0][0, 0].data
else: wave_gen = inference(phone, phone_lengths, sid)[0][0, 0].data
audio_dict = {
"slice/wave_org": wave_orig[0][0],
"slice/wave_gen": wave_gen
}
utils.summarize(
writer=writer,
global_step=global_step,
images=image_dict,
scalars=scalar_dict,
audios=audio_dict,
audio_sampling_rate=SR_MAP[hps.sample_rate]
)
global_step += 1
# /Run steps
if hps.save_every_epoch>0 and (epoch % hps.save_every_epoch == 0) and rank == 0:
saved_epoch = 23333 if hps.if_latest else epoch
utils.save_checkpoint(
net_g,
optim_g,
hps.train.learning_rate,
epoch,
os.path.join(hps.model_dir, f"G_{saved_epoch}.pth"),
balancer=balancer_g.to_dict(),
msml=MultiscaleMelLoss.to_dict()
)
utils.save_checkpoint(
net_d,
optim_d,
hps.train.learning_rate,
epoch,
os.path.join(hps.model_dir, f"D_{saved_epoch}.pth"),
balancer=balancer_d.to_dict()
)
if hps.save_every_weights:
ckpt = net_g.module.state_dict() if hasattr(net_g, "module") else net_g.state_dict()
save_name = f"{hps.name}_e{epoch}_s{global_step}"
status = save_checkpoint(ckpt,save_name,epoch,hps)
logger.info(f"saving ckpt {save_name}: {status}")
if rank == 0:
total_loss = balancer_g.weighted_ema_loss + balancer_d.weighted_ema_loss
logger.info(f"====> Epoch {epoch} ({total_loss=:.3f}): {global_step=} {lr=:.2E} {epoch_recorder.record()}")
logger.info(f"|| {loss_disc_all=:.3f}: {loss_disc=:.3f}, {gradient_penalty=:.3f}")
logger.info(f"|| {loss_gen_all=:.3f}: {loss_gen=:.3f}, {loss_fm=:.3f}, {loss_mel=:.3f}, {loss_kl=:.3f}")
logger.info(f"|| {aux_loss=:.3f}: {harmonic_loss=:.3f}, {tefs_loss=:.3f}, {tsi_loss=:.3f}")
balancer_g.on_epoch_end(.5 / (1 + np.exp(-10 * (epoch / hps.total_epoch - 0.16)))+.5) #sigmoid scaling of ema
balancer_d.on_epoch_end(.5 / (1 + np.exp(-10 * (epoch / hps.total_epoch - 0.16)))+.5) #sigmoid scaling of ema
if total_loss<least_loss:
least_loss = total_loss
logger.info(f"\t>>>[lowest loss]: {least_loss:.3f}<<<")
if hps.save_best_model:
if hasattr(net_g, "module"): ckpt = net_g.module.state_dict()
else: ckpt = net_g.state_dict()
best_model_name = f"{hps.name}_e{epoch}_s{global_step}_loss{least_loss:.0f}" if hps.save_every_weights else f"{hps.name}_loss{least_loss:2.0f}"
status = save_checkpoint(ckpt,best_model_name,epoch,hps)
logger.info(f"=== saving best model {best_model_name}: {status=} ===")
with open(loss_file,"w") as f:
json.dump(dict(least_loss=least_loss.item(),best_model_name=best_model_name,epoch=epoch,steps=global_step,
loss_weights = dict(**balancer_g.ema_weights,**balancer_d.ema_weights),
scalar_dict={
"total/loss/all": commons.serialize_tensor(loss_gen_all+loss_disc_all),
"total/loss/gen_all": commons.serialize_tensor(loss_gen_all),
"total/loss/aux": commons.serialize_tensor(aux_loss),
"total/loss/disc_all": commons.serialize_tensor(loss_disc_all),
"total/loss/gen": commons.serialize_tensor(loss_gen),
"total/loss/disc": commons.serialize_tensor(loss_disc),
"total/loss/fm": commons.serialize_tensor(loss_fm),
"total/loss/mel": commons.serialize_tensor(loss_mel),
"total/loss/kl": commons.serialize_tensor(loss_kl),
"aux/loss/harmonic": commons.serialize_tensor(harmonic_loss),
"aux/loss/tefs": commons.serialize_tensor(tefs_loss),
"aux/loss/tsi": commons.serialize_tensor(tsi_loss),
"gradient/grad_norm_disc": commons.serialize_tensor(grad_norm_d),
"gradient/grad_norm_gen": commons.serialize_tensor(grad_norm_g),
"gradient/gradient_penalty": commons.serialize_tensor(gradient_penalty),
}),f,indent=2)
if epoch >= hps.total_epoch and rank == 0:
logger.info("Training is done. The program is closed.")
ckpt = net_g.module.state_dict() if hasattr(net_g, "module") else net_g.state_dict()
if hps.save_best_model and os.path.isfile(loss_file):
with open(loss_file,"r") as f:
data = json.load(f)
best_model_name = data.get("best_model_name","")
best_model_path = os.path.join(hps.model_dir,f"{best_model_name}.pth")
if os.path.isfile(best_model_path):
shutil.copy(best_model_path,os.path.join(
os.path.dirname(hps.model_path),
f"{os.path.basename(hps.model_path).split('.')[0]}-lowest.pth"))
status = save_checkpoint(ckpt,hps.name,epoch,hps,model_path=hps.model_path)
logger.info(f"saving final ckpt {hps.model_path}: {status}")
sleep(1)
os._exit(0)
if __name__ == "__main__":
torch.multiprocessing.set_start_method("spawn")
hps = utils.get_hparams()
train_model(hps)