def test(cfg: Namespace) -> None: assert cfg.checkpoint not in [None, ""] assert cfg.device == "cpu" or (cfg.device == "cuda" and T.cuda.is_available()) exp_dir = ROOT_EXP_DIR / cfg.exp_name os.makedirs(exp_dir / "out", exist_ok=True) cfg.to_file(exp_dir / "test_config.json") logger.info(f"[exp dir={exp_dir}]") model = CAE() model.load_state_dict(T.load(cfg.checkpoint)) model.eval() if cfg.device == "cuda": model.cuda() logger.info(f"[model={cfg.checkpoint}] on {cfg.device}") dataloader = DataLoader(dataset=ImageFolder720p(cfg.dataset_path), batch_size=1, shuffle=cfg.shuffle) logger.info(f"[dataset={cfg.dataset_path}]") loss_criterion = nn.MSELoss() for batch_idx, data in enumerate(dataloader, start=1): img, patches, _ = data if cfg.device == "cuda": patches = patches.cuda() if batch_idx % cfg.batch_every == 0: pass out = T.zeros(6, 10, 3, 128, 128) avg_loss = 0 for i in range(6): for j in range(10): x = patches[:, :, i, j, :, :].cuda() y = model(x) out[i, j] = y.data loss = loss_criterion(y, x) avg_loss += (1 / 60) * loss.item() logger.debug("[%5d/%5d] avg_loss: %f", batch_idx, len(dataloader), avg_loss) # save output out = np.transpose(out, (0, 3, 1, 4, 2)) out = np.reshape(out, (768, 1280, 3)) out = np.transpose(out, (2, 0, 1)) y = T.cat((img[0], out), dim=2) save_imgs( imgs=y.unsqueeze(0), to_size=(3, 768, 2 * 1280), name=exp_dir / f"out/test_{batch_idx}.png", )
def train(cfg: Namespace) -> None: assert cfg.device == "cpu" or (cfg.device == "cuda" and T.cuda.is_available()) root_dir = Path(__file__).resolve().parents[1] logger.info("training: experiment %s" % (cfg.exp_name)) # make dir-tree exp_dir = root_dir / "experiments" / cfg.exp_name for d in ["out", "checkpoint", "logs"]: os.makedirs(exp_dir / d, exist_ok=True) cfg.to_file(exp_dir / "train_config.json") # tb tb_writer tb_writer = SummaryWriter(exp_dir / "logs") logger.info("started tensorboard writer") model = CAE() model.train() if cfg.device == "cuda": model.cuda() logger.info(f"loaded model on {cfg.device}") dataloader = DataLoader( dataset=ImageFolder720p(cfg.dataset_path), batch_size=cfg.batch_size, shuffle=cfg.shuffle, num_workers=cfg.num_workers, ) logger.info(f"loaded dataset from {cfg.dataset_path}") optimizer = optim.Adam(model.parameters(), lr=cfg.learning_rate, weight_decay=1e-5) loss_criterion = nn.MSELoss() avg_loss, epoch_avg = 0.0, 0.0 ts = 0 # EPOCHS for epoch_idx in range(cfg.start_epoch, cfg.num_epochs + 1): # BATCHES for batch_idx, data in enumerate(dataloader, start=1): img, patches, _ = data if cfg.device == "cuda": patches = patches.cuda() avg_loss_per_image = 0.0 for i in range(6): for j in range(10): optimizer.zero_grad() x = patches[:, :, i, j, :, :] y = model(x) loss = loss_criterion(y, x) avg_loss_per_image += (1 / 60) * loss.item() loss.backward() optimizer.step() avg_loss += avg_loss_per_image epoch_avg += avg_loss_per_image if batch_idx % cfg.batch_every == 0: tb_writer.add_scalar("train/avg_loss", avg_loss / cfg.batch_every, ts) for name, param in model.named_parameters(): tb_writer.add_histogram(name, param, ts) logger.debug("[%3d/%3d][%5d/%5d] avg_loss: %.8f" % ( epoch_idx, cfg.num_epochs, batch_idx, len(dataloader), avg_loss / cfg.batch_every, )) avg_loss = 0.0 ts += 1 # -- end batch every if batch_idx % cfg.save_every == 0: out = T.zeros(6, 10, 3, 128, 128) for i in range(6): for j in range(10): x = patches[0, :, i, j, :, :].unsqueeze(0).cuda() out[i, j] = model(x).cpu().data out = np.transpose(out, (0, 3, 1, 4, 2)) out = np.reshape(out, (768, 1280, 3)) out = np.transpose(out, (2, 0, 1)) y = T.cat((img[0], out), dim=2).unsqueeze(0) save_imgs( imgs=y, to_size=(3, 768, 2 * 1280), name=exp_dir / f"out/{epoch_idx}_{batch_idx}.png", ) # -- end save every # -- end batches if epoch_idx % cfg.epoch_every == 0: epoch_avg /= len(dataloader) * cfg.epoch_every tb_writer.add_scalar( "train/epoch_avg_loss", avg_loss / cfg.batch_every, epoch_idx // cfg.epoch_every, ) logger.info("Epoch avg = %.8f" % epoch_avg) epoch_avg = 0.0 T.save(model.state_dict(), exp_dir / f"checkpoint/model_{epoch_idx}.pth") # -- end epoch every # -- end epoch # save final model T.save(model.state_dict(), exp_dir / "model_final.pth") # cleaning tb_writer.close()