mirror of
https://github.com/unanmed/ginka-generator.git
synced 2026-05-14 04:41:12 +08:00
349 lines
15 KiB
Python
349 lines
15 KiB
Python
import argparse
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import os
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import sys
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from datetime import datetime
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import torch
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import torch.optim as optim
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import torch.nn.functional as F
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import cv2
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from torch_geometric.loader import DataLoader
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from tqdm import tqdm
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from .model.model import GinkaModel
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from .dataset import GinkaWGANDataset
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from .model.loss import WGANGinkaLoss
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from .model.input import RandomInputHead
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from minamo.model.model import MinamoScoreModule
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from shared.image import matrix_to_image_cv
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BATCH_SIZE = 16
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device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
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os.makedirs("result", exist_ok=True)
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os.makedirs("result/wgan", exist_ok=True)
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disable_tqdm = not sys.stdout.isatty()
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def parse_arguments():
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parser = argparse.ArgumentParser(description="training codes")
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parser.add_argument("--resume", type=bool, default=False)
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parser.add_argument("--state_ginka", type=str, default="result/wgan/ginka-100.pth")
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parser.add_argument("--state_minamo", type=str, default="result/wgan/minamo-100.pth")
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parser.add_argument("--train", type=str, default="ginka-dataset.json")
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parser.add_argument("--validate", type=str, default="ginka-eval.json")
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parser.add_argument("--epochs", type=int, default=100)
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parser.add_argument("--checkpoint", type=int, default=5)
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parser.add_argument("--load_optim", type=bool, default=True)
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parser.add_argument("--curr_epoch", type=int, default=20) # 课程学习至少多少 epoch
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args = parser.parse_args()
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return args
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def gen_curriculum(gen, masked1, masked2, masked3, detach=False) -> tuple[torch.Tensor, torch.Tensor, torch.Tensor]:
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fake1, _ = gen(masked1, 1)
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fake2, _ = gen(masked2, 2)
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fake3, _ = gen(masked3, 3)
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if detach:
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return fake1.detach(), fake2.detach(), fake3.detach()
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else:
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return fake1, fake2, fake3
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def gen_total(gen, input, progress_detach=True, result_detach=False, random=False) -> torch.Tensor:
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if progress_detach:
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fake1, x_in = gen(input.detach(), 1, random)
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fake2, _ = gen(F.softmax(fake1.detach()), 2)
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fake3, _ = gen(F.softmax(fake2.detach()), 3)
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else:
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fake1, x_in = gen(input, 1, random)
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fake2, _ = gen(F.softmax(fake1), 2)
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fake3, _ = gen(F.softmax(fake2), 3)
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if result_detach:
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return fake1.detach(), fake2.detach(), fake3.detach(), x_in.detach()
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else:
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return fake1, fake2, fake3, x_in
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def train():
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print(f"Using {'cuda' if torch.cuda.is_available() else 'cpu'} to train model.")
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args = parse_arguments()
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c_steps = 5
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g_steps = 1
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# 训练阶段
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train_stage = 1
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last_stage = False
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mask_ratio = 0.2 # 蒙版区域大小，每次增加 0.1，到达 0.9 之后进入阶段 2 的训练
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stage_epoch = 0 # 记录当前阶段的 epoch 数，用于控制训练过程
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ginka = GinkaModel().to(device)
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ginka_head = RandomInputHead().to(device)
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minamo = MinamoScoreModule().to(device)
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dataset = GinkaWGANDataset(args.train, device)
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dataset_val = GinkaWGANDataset(args.validate, device)
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dataloader = DataLoader(dataset, batch_size=BATCH_SIZE, shuffle=True)
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dataloader_val = DataLoader(dataset_val, batch_size=BATCH_SIZE, shuffle=True)
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optimizer_ginka = optim.Adam(ginka.parameters(), lr=1e-4, betas=(0.0, 0.9))
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optimizer_head = optim.Adam(ginka_head.parameters(), lr=1e-4, betas=(0.0, 0.9))
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optimizer_minamo = optim.Adam(minamo.parameters(), lr=1e-5, betas=(0.0, 0.9))
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# scheduler_ginka = optim.lr_scheduler.CosineAnnealingLR(optimizer_ginka, T_max=args.epochs)
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# scheduler_minamo = optim.lr_scheduler.CosineAnnealingLR(optimizer_minamo, T_max=args.epochs)
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criterion = WGANGinkaLoss()
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# 用于生成图片
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tile_dict = dict()
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for file in os.listdir('tiles'):
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name = os.path.splitext(file)[0]
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tile_dict[name] = cv2.imread(f"tiles/{file}", cv2.IMREAD_UNCHANGED)
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if args.resume:
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data_ginka = torch.load(args.state_ginka, map_location=device)
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data_minamo = torch.load(args.state_minamo, map_location=device)
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ginka.load_state_dict(data_ginka["model_state"], strict=False)
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minamo.load_state_dict(data_minamo["model_state"], strict=False)
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if data_ginka.get("c_steps") is not None and data_ginka.get("g_steps") is not None:
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c_steps = data_ginka["c_steps"]
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g_steps = data_ginka["g_steps"]
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if data_ginka.get("mask_ratio") is not None:
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mask_ratio = data_ginka["mask_ratio"]
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if data_ginka.get("stage_epoch") is not None:
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stage_epoch = data_ginka["stage_epoch"]
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if data_ginka.get("stage") is not None:
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train_stage = data_ginka["stage"]
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if data_ginka.get("last_stage") is not None:
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last_stage = data_ginka["last_stage"]
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if args.load_optim:
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if data_ginka.get("optim_state") is not None:
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optimizer_ginka.load_state_dict(data_ginka["optim_state"])
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if data_minamo.get("optim_state") is not None:
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optimizer_minamo.load_state_dict(data_minamo["optim_state"])
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dataset.train_stage = train_stage
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dataset.mask_ratio1 = mask_ratio
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dataset.mask_ratio2 = mask_ratio
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dataset.mask_ratio3 = mask_ratio
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dataset_val.train_stage = train_stage
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dataset_val.mask_ratio1 = mask_ratio
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dataset_val.mask_ratio2 = mask_ratio
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dataset_val.mask_ratio3 = mask_ratio
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print("Train from loaded state.")
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low_loss_epochs = 0
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for epoch in tqdm(range(args.epochs), desc="WGAN Training", disable=disable_tqdm):
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loss_total_minamo = torch.Tensor([0]).to(device)
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loss_total_ginka = torch.Tensor([0]).to(device)
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dis_total = torch.Tensor([0]).to(device)
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loss_ce_total = torch.Tensor([0]).to(device)
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for batch in tqdm(dataloader, leave=False, desc="Epoch Progress", disable=disable_tqdm):
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real1, masked1, real2, masked2, real3, masked3 = [item.to(device) for item in batch]
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if train_stage == 4:
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# 最后一个阶段训练输入头
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count = 5 if stage_epoch <= 20 else 2
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for _ in range(count):
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optimizer_head.zero_grad()
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output = F.softmax(ginka_head(masked1), dim=1)
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loss_head = criterion.generator_input_head_loss(output)
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loss_head.backward()
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optimizer_head.step()
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# ---------- 训练判别器
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for _ in range(c_steps):
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# 生成假样本
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optimizer_minamo.zero_grad()
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optimizer_ginka.zero_grad()
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optimizer_head.zero_grad()
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with torch.no_grad():
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if train_stage == 1 or train_stage == 2:
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fake1, fake2, fake3 = gen_curriculum(ginka, masked1, masked2, masked3, True)
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elif train_stage == 3 or train_stage == 4:
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fake1, fake2, fake3, _ = gen_total(ginka, masked1, True, True, train_stage == 4)
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loss_d1, dis1 = criterion.discriminator_loss(minamo, 1, real1, fake1)
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loss_d2, dis2 = criterion.discriminator_loss(minamo, 2, real2, fake2)
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loss_d3, dis3 = criterion.discriminator_loss(minamo, 3, real3, fake3)
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dis_avg = (dis1 + dis2 + dis3) / 3.0
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loss_d_avg = (loss_d1 + loss_d2 + loss_d3) / 3.0
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# 反向传播
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loss_d_avg.backward()
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optimizer_minamo.step()
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loss_total_minamo += loss_d_avg.detach()
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dis_total += dis_avg.detach()
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# ---------- 训练生成器
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for _ in range(g_steps):
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optimizer_minamo.zero_grad()
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optimizer_ginka.zero_grad()
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optimizer_head.zero_grad()
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if train_stage == 1 or train_stage == 2:
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fake1, fake2, fake3 = gen_curriculum(ginka, masked1, masked2, masked3, False)
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loss_g1, _, loss_ce_g1, _ = criterion.generator_loss(minamo, 1, mask_ratio, real1, fake1, masked1)
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loss_g2, _, loss_ce_g2, _ = criterion.generator_loss(minamo, 2, mask_ratio, real2, fake2, masked2)
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loss_g3, _, loss_ce_g3, _ = criterion.generator_loss(minamo, 3, mask_ratio, real3, fake3, masked3)
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loss_g = (loss_g1 + loss_g2 + loss_g3) / 3.0
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loss_ce = max(loss_ce_g1, loss_ce_g2, loss_ce_g3)
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loss_g.backward()
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optimizer_ginka.step()
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loss_total_ginka += loss_g.detach()
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loss_ce_total += loss_ce.detach()
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elif train_stage == 3 or train_stage == 4:
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fake1, fake2, fake3, x_in = gen_total(ginka, input, True, False)
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if train_stage == 3:
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loss_g1 = criterion.generator_loss_total_with_input(minamo, 1, fake1, input)
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else:
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loss_g1 = criterion.generator_loss_total(minamo, 1, fake1)
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loss_g2 = criterion.generator_loss_total_with_input(minamo, 2, fake2, fake1)
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loss_g3 = criterion.generator_loss_total_with_input(minamo, 3, fake3, fake2)
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if train_stage == 4:
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loss_head = criterion.generator_input_head_loss(x_in)
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loss_head.backward()
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loss_g = (loss_g1 + loss_g2 + loss_g3) / 3.0
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loss_g.backward()
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optimizer_ginka.step()
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loss_total_ginka += loss_g.detach()
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avg_loss_ginka = loss_total_ginka.item() / len(dataloader) / g_steps
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avg_loss_minamo = loss_total_minamo.item() / len(dataloader) / c_steps
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avg_loss_ce = loss_ce_total.item() / len(dataloader) / g_steps
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avg_dis = dis_total.item() / len(dataloader) / c_steps
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tqdm.write(
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f"[{datetime.now().strftime('%Y-%m-%d %H:%M:%S')}] " +
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f"Epoch: {epoch + 1} | S: {train_stage} | W: {avg_dis:.6f} | " +
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f"G: {avg_loss_ginka:.6f} | D: {avg_loss_minamo:.6f} | " +
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f"CE: {avg_loss_ce:.6f} | M: {mask_ratio:.1f}"
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)
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if avg_loss_ce < 1.0:
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low_loss_epochs += 1
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else:
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low_loss_epochs = 0
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# 训练流程控制
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if low_loss_epochs >= 3 and train_stage == 1 and stage_epoch >= args.curr_epoch:
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if mask_ratio >= 0.9:
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train_stage = 2
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mask_ratio += 0.2
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mask_ratio = min(mask_ratio, 0.9)
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low_loss_epochs = 0
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stage_epoch = 0
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if (train_stage == 3 or train_stage == 2) and not last_stage:
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if stage_epoch >= 25:
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train_stage += 1
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stage_epoch = 0
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if train_stage == 4:
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last_stage = True
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if train_stage >= 3 or last_stage:
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# 第三阶段后交叉熵损失不再应该生效
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mask_ratio = 1.0
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if last_stage:
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mask_ratio = 1.0
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if train_stage == 2 and stage_epoch % 5 == 0:
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train_stage = 4
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if train_stage == 4 and stage_epoch % 5 == 1:
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train_stage = 2
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stage_epoch += 1
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dataset.train_stage = train_stage
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dataset_val.train_stage = train_stage
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dataset.mask_ratio1 = dataset.mask_ratio2 = dataset.mask_ratio3 = mask_ratio
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dataset_val.mask_ratio1 = dataset_val.mask_ratio2 = dataset_val.mask_ratio3 = mask_ratio
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# scheduler_ginka.step()
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# scheduler_minamo.step()
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if avg_dis < 0:
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g_steps = max(int(-avg_dis * 5), 1)
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else:
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g_steps = 1
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if avg_loss_minamo > 0:
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c_steps = int(min(5 + avg_loss_minamo * 5, 15))
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else:
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c_steps = 5
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# 每若干轮输出一次图片，并保存检查点
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if (epoch + 1) % args.checkpoint == 0:
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# 保存检查点
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torch.save({
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"model_state": ginka.state_dict(),
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"optim_state": optimizer_ginka.state_dict(),
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"c_steps": c_steps,
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"g_steps": g_steps,
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"stage": train_stage,
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"mask_ratio": mask_ratio,
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"stage_epoch": stage_epoch,
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"last_stage": last_stage
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}, f"result/wgan/ginka-{epoch + 1}.pth")
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torch.save({
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"model_state": minamo.state_dict(),
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"optim_state": optimizer_minamo.state_dict()
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}, f"result/wgan/minamo-{epoch + 1}.pth")
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idx = 0
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with torch.no_grad():
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for batch in tqdm(dataloader_val, desc="Validating generator.", leave=False, disable=disable_tqdm):
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real1, masked1, real2, masked2, real3, masked3 = [item.to(device) for item in batch]
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if train_stage == 1 or train_stage == 2:
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fake1, fake2, fake3 = gen_curriculum(ginka, masked1, masked2, masked3, True)
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elif train_stage == 3 or train_stage == 4:
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input = masked1 if train_stage == 3 else F.softmax(ginka_head(masked1), dim=1)
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fake1, fake2, fake3, _ = gen_total(ginka, input, True, True)
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fake1 = torch.argmax(fake1, dim=1).cpu().numpy()
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fake2 = torch.argmax(fake2, dim=1).cpu().numpy()
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fake3 = torch.argmax(fake3, dim=1).cpu().numpy()
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for i in range(fake1.shape[0]):
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for key, one in enumerate([fake1, fake2, fake3]):
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map_matrix = one[i]
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image = matrix_to_image_cv(map_matrix, tile_dict)
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cv2.imwrite(f"result/ginka_img/{idx}_{key}.png", image)
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idx += 1
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print("Train ended.")
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torch.save({
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"model_state": ginka.state_dict(),
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}, f"result/ginka.pth")
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torch.save({
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"model_state": minamo.state_dict(),
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}, f"result/minamo.pth")
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if __name__ == "__main__":
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torch.set_num_threads(4)
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train()
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