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PyTorch一小时掌握之迁移学习篇

2021-09-13 04:07 260 查看 https://www.geek-share.com/det
目录
  • 加载模型
    • ResNet152
    • 完整代码
      • 概述

        迁移学习 (Transfer Learning) 是把已学训练好的模型参数用作新训练模型的起始参数. 迁移学习是深度学习中非常重要和常用的一个策略.

        为什么使用迁移学习

        更好的结果

        迁移学习 (Transfer Learning) 可以帮助我们得到更好的结果.

        当我们手上的数据比较少的时候, 训练非常容易造成过拟合的现象. 使用迁移学习可以帮助我们通过更少的训练数据达到更好的效果. 使得模型的泛化能力更强, 训练过程更稳定.

        节省时间

        迁移学习 (Transfer Learning) 可以帮助我们节省时间.

        通过迁徙学习, 我们站在了巨人的肩膀上. 利用前人花大量时间训练好的参数, 能帮助我们在模型的训练上节省大把的时间.

        加载模型

        首先我们需要加载模型, 并指定层数. 常用的模型有:

        • VGG
        • ResNet
        • SqueezeNet
        • DenseNet
        • Inception
        • GoogLeNet
        • ShuffleNet
        • MobileNet

        官网 API

        ResNet152

        我们将使用 ResNet 152 和 CIFAR 100 来举例.

        冻层实现

        def set_parameter_requires_grad(model, feature_extracting):
        """
        是否保留梯度, 实现冻层
        :param model: 模型
        :param feature_extracting: 是否冻层
        :return: 无返回值
        """
        if feature_extracting:  # 如果冻层
        for param in model.parameters():  # 遍历每个权重参数
        param.requires_grad = False  # 保留梯度为False

        模型初始化

        def initialize_model(model_name, num_classes, feature_exact, use_pretrained=True):
        """
        初始化模型
        :param model_name: 模型名字
        :param num_classes: 类别数
        :param feature_exact: 是否冻层
        :param use_pretrained: 是否下载模型
        :return: 返回模型,
        """
        
        model_ft = None
        
        if model_name == "resnet":
        """Resnet152"""
        
        # 加载模型
        model_ft = models.resnet152(pretrained=use_pretrained)  # 下载参数
        set_parameter_requires_grad(model_ft, feature_exact)  # 冻层
        
        # 修改全连接层
        num_features = model_ft.fc.in_features
        model_ft.fc = torch.nn.Sequential(
        torch.nn.Linear(num_features, num_classes),
        torch.nn.LogSoftmax(dim=1)
        )
        
        # 返回初始化好的模型
        return model_ft

        获取需更新参数

        def parameter_to_update(model):
        """
        获取需要更新的参数
        :param model: 模型
        :return: 需要更新的参数列表
        """
        
        print("Params to learn")
        param_array = model.parameters()
        
        if feature_exact:
        param_array = []
        for name, param, in model.named_parameters():
        if param.requires_grad == True:
        param_array.append(param)
        print("\t", name)
        else:
        for name, param, in model.named_parameters():
        if param.requires_grad == True:
        print("\t", name)
        
        return param_array

        训练模型

        def train_model(model, dataloaders, citerion, optimizer, filename, num_epochs=25):
        # 获取起始时间
        since = time.time()
        
        # 初始化参数
        best_acc = 0
        val_acc_history = []
        train_acc_history = []
        train_losses = []
        valid_losses = []
        LRs = [optimizer.param_groups[0]["lr"]]
        best_model_weights = copy.deepcopy(model.state_dict())
        
        for epoch in range(num_epochs):
        print("Epoch {}/{}".format(epoch, num_epochs - 1))
        print("-" * 10)
        
        # 训练和验证
        for phase in ["train", "valid"]:
        if phase == "train":
        model.train()  # 训练
        else:
        model.eval()  # 验证
        
        running_loss = 0.0
        running_corrects = 0
        
        # 遍历数据
        for inputs, labels in dataloaders[phase]:
        inputs = inputs.to(device)
        labels = labels.to(device)
        
        # 梯度清零
        optimizer.zero_grad()
        
        # 只有训练的时候计算和更新梯度
        with torch.set_grad_enabled(phase == "train"):
        outputs = model(inputs)
        _, preds = torch.max(outputs, 1)
        
        # 计算损失
        loss = criterion(outputs, labels)
        
        # 训练阶段更新权重
        if phase == "train":
        loss.backward()
        optimizer.step()
        
        # 计算损失
        running_loss += loss.item() * inputs.size(0)
        running_corrects += torch.sum(preds == labels.data)
        
        epoch_loss = running_loss / len(dataloaders[phase].dataset)
        epoch_acc = running_corrects.double() / len(dataloaders[phase].dataset)
        
        time_eplased = time.time() - since
        print("Time elapsed {:.0f}m {:.0f}s".format(time_eplased // 60, time_eplased % 60))
        print("{} Loss: {:.4f} Acc: {:.4f}".format(phase, epoch_loss, epoch_acc))
        
        # 得到最好的模型
        if phase == "valid" and epoch_acc > best_acc:
        best_acc = epoch_acc
        best_model_weights = copy.deepcopy(model.state_dict())
        state = {
        "state_dict": model.state_dict(),
        "best_acc": best_acc,
        "optimizer": optimizer.state_dict(),
        }
        torch.save(state, filename)
        if phase == "valid":
        val_acc_history.append(epoch_acc)
        valid_losses.append(epoch_loss)
        scheduler.step(epoch_loss)
        if phase == "train":
        train_acc_history.append(epoch_acc)
        train_losses.append(epoch_loss)
        
        print("Optimizer learning rate: {:.7f}".format(optimizer.param_groups[0]["lr"]))
        LRs.append(optimizer.param_groups[0]["lr"])
        print()
        
        time_eplased = time.time() - since
        print("Training complete in {:.0f}m {:.0f}s".format(time_eplased // 60, time_eplased % 60))
        print("Best val Acc: {:4f}".format(best_acc))
        
        # 训练完后用最好的一次当做模型最终的结果
        model.load_state_dict(best_model_weights)
        
        # 返回
        return model, val_acc_history, train_acc_history, valid_losses, train_losses, LRs

        获取数据

        def get_data():
        """获取数据"""
        
        # 获取测试集
        train = torchvision.datasets.CIFAR100(root="./mnt", train=True, download=True,
        transform=torchvision.transforms.Compose([
        torchvision.transforms.ToTensor(),  # 转换成张量
        torchvision.transforms.Normalize((0.1307,), (0.3081,))  # 标准化
        ]))
        train_loader = DataLoader(train, batch_size=batch_size)  # 分割测试集
        
        # 获取测试集
        test = torchvision.datasets.CIFAR100(root="./mnt", train=False, download=True,
        transform=torchvision.transforms.Compose([
        torchvision.transforms.ToTensor(),  # 转换成张量
        torchvision.transforms.Normalize((0.1307,), (0.3081,))  # 标准化
        ]))
        test_loader = DataLoader(test, batch_size=batch_size)  # 分割训练
        
        data_loader = {"train": train_loader, "valid": test_loader}
        
        # 返回分割好的训练集和测试集
        return data_loader

        完整代码

        完整代码:

        import copy
        import torch
        from torch.utils.data import DataLoader
        import time
        from torchsummary import summary
        import torchvision
        import torchvision.models as models
        def set_parameter_requires_grad(model, feature_extracting):
        """
        是否保留梯度, 实现冻层
        :param model: 模型
        :param feature_extracting: 是否冻层
        :return: 无返回值
        """
        if feature_extracting:  # 如果冻层
        for param in model.parameters():  # 遍历每个权重参数
        param.requires_grad = False  # 保留梯度为Falsedef initialize_model(model_name, num_classes, feature_exact, use_pretrained=True):
        """
        初始化模型
        :param model_name: 模型名字
        :param num_classes: 类别数
        :param feature_exact: 是否冻层
        :param use_pretrained: 是否下载模型
        :return: 返回模型,
        """
        
        model_ft = None
        
        if model_name == "resnet":
        """Resnet152"""
        
        # 加载模型
        model_ft = models.resnet152(pretrained=use_pretrained)  # 下载参数
        set_parameter_requires_grad(model_ft, feature_exact)  # 冻层
        
        # 修改全连接层
        num_features = model_ft.fc.in_features
        model_ft.fc = torch.nn.Sequential(
        torch.nn.Linear(num_features, num_classes),
        torch.nn.LogSoftmax(dim=1)
        )
        
        # 返回初始化好的模型
        return model_ftdef parameter_to_update(model):
        """
        获取需要更新的参数
        :param model: 模型
        :return: 需要更新的参数列表
        """
        
        print("Params to learn")
        param_array = model.parameters()
        
        if feature_exact:
        param_array = []
        for name, param, in model.named_parameters():
        if param.requires_grad == True:
        param_array.append(param)
        print("\t", name)
        else:
        for name, param, in model.named_parameters():
        if param.requires_grad == True:
        print("\t", name)
        
        return param_arraydef train_model(model, dataloaders, citerion, optimizer, filename, num_epochs=25):
        # 获取起始时间
        since = time.time()
        
        # 初始化参数
        best_acc = 0
        val_acc_history = []
        train_acc_history = []
        train_losses = []
        valid_losses = []
        LRs = [optimizer.param_groups[0]["lr"]]
        best_model_weights = copy.deepcopy(model.state_dict())
        
        for epoch in range(num_epochs):
        print("Epoch {}/{}".format(epoch, num_epochs - 1))
        print("-" * 10)
        
        # 训练和验证
        for phase in ["train", "valid"]:
        if phase == "train":
        model.train()  # 训练
        else:
        model.eval()  # 验证
        
        running_loss = 0.0
        running_corrects = 0
        
        # 遍历数据
        for inputs, labels in dataloaders[phase]:
        inputs = inputs.to(device)
        labels = labels.to(device)
        
        # 梯度清零
        optimizer.zero_grad()
        
        # 只有训练的时候计算和更新梯度
        with torch.set_grad_enabled(phase == "train"):
        outputs = model(inputs)
        _, preds = torch.max(outputs, 1)
        
        # 计算损失
        loss = criterion(outputs, labels)
        
        # 训练阶段更新权重
        if phase == "train":
        loss.backward()
        optimizer.step()
        
        # 计算损失
        running_loss += loss.item() * inputs.size(0)
        running_corrects += torch.sum(preds == labels.data)
        
        epoch_loss = running_loss / len(dataloaders[phase].dataset)
        epoch_acc = running_corrects.double() / len(dataloaders[phase].dataset)
        
        time_eplased = time.time() - since
        print("Time elapsed {:.0f}m {:.0f}s".format(time_eplased // 60, time_eplased % 60))
        print("{} Loss: {:.4f} Acc: {:.4f}".format(phase, epoch_loss, epoch_acc))
        
        # 得到最好的模型
        if phase == "valid" and epoch_acc > best_acc:
        best_acc = epoch_acc
        best_model_weights = copy.deepcopy(model.state_dict())
        state = {
        "state_dict": model.state_dict(),
        "best_acc": best_acc,
        "optimizer": optimizer.state_dict(),
        }
        torch.save(state, filename)
        if phase == "valid":
        val_acc_history.append(epoch_acc)
        valid_losses.append(epoch_loss)
        scheduler.step(epoch_loss)
        if phase == "train":
        train_acc_history.append(epoch_acc)
        train_losses.append(epoch_loss)
        
        print("Optimizer learning rate: {:.7f}".format(optimizer.param_groups[0]["lr"]))
        LRs.append(optimizer.param_groups[0]["lr"])
        print()
        
        time_eplased = time.time() - since
        print("Training complete in {:.0f}m {:.0f}s".format(time_eplased // 60, time_eplased % 60))
        print("Best val Acc: {:4f}".format(best_acc))
        
        # 训练完后用最好的一次当做模型最终的结果
        model.load_state_dict(best_model_weights)
        
        # 返回
        return model, val_acc_history, train_acc_history, valid_losses, train_losses, LRsdef get_data():
        """获取数据"""
        
        # 获取测试集
        train = torchvision.datasets.CIFAR100(root="./mnt", train=True, download=True,
        transform=torchvision.transforms.Compose([
        torchvision.transforms.ToTensor(),  # 转换成张量
        torchvision.transforms.Normalize((0.1307,), (0.3081,))  # 标准化
        ]))
        train_loader = DataLoader(train, batch_size=batch_size)  # 分割测试集
        
        # 获取测试集
        test = torchvision.datasets.CIFAR100(root="./mnt", train=False, download=True,
        transform=torchvision.transforms.Compose([
        torchvision.transforms.ToTensor(),  # 转换成张量
        torchvision.transforms.Normalize((0.1307,), (0.3081,))  # 标准化
        ]))
        test_loader = DataLoader(test, batch_size=batch_size)  # 分割训练
        
        data_loader = {"train": train_loader, "valid": test_loader}
        
        # 返回分割好的训练集和测试集
        return data_loader
        # 超参数
        filename = "checkpoint.pth"  # 模型保存
        feature_exact = True  # 冻层
        num_classes = 100  # 输出的类别数
        batch_size = 1024  # 一次训练的样本数目
        iteration_num = 10  # 迭代次数
        
        # 获取模型
        resnet152 = initialize_model(
        model_name="resnet",
        num_classes=num_classes,
        feature_exact=feature_exact,
        use_pretrained=True
        )
        
        # 是否使用GPU训练
        use_cuda = torch.cuda.is_available()
        device = torch.device("cuda" if use_cuda else "cpu")
        if use_cuda: resnet152.cuda()  # GPU 计算
        print("是否使用 GPU 加速:", use_cuda)
        
        # 输出网络结构
        print(summary(resnet152, (3, 32, 32)))
        
        # 训练参数
        params_to_update = parameter_to_update(resnet152)
        
        # 优化器
        optimizer = torch.optim.Adam(params_to_update, lr=0.01)
        scheduler = torch.optim.lr_scheduler.StepLR(optimizer, step_size=10, gamma=0.1)  # 学习率每10个epoch衰减到原来的1/10
        criterion = torch.nn.NLLLoss()
        
        if __name__ == "__main__":
        data_loader = get_data()
        resnet152, val_acc_history, train_acc_history, valid_losses, train_losses, LRs = train_model(
        model=resnet152,
        dataloaders=data_loader,
        citerion=criterion,
        optimizer=optimizer,
        num_epochs=iteration_num,
        filename=filename
        )
        

        输出结果:

        是否使用 GPU 加速: True
        ----------------------------------------------------------------
        Layer (type) Output Shape Param #
        ================================================================
        Conv2d-1 [-1, 64, 16, 16] 9,408
        BatchNorm2d-2 [-1, 64, 16, 16] 128
        ReLU-3 [-1, 64, 16, 16] 0
        MaxPool2d-4 [-1, 64, 8, 8] 0
        Conv2d-5 [-1, 64, 8, 8] 4,096
        BatchNorm2d-6 [-1, 64, 8, 8] 128
        ReLU-7 [-1, 64, 8, 8] 0
        Conv2d-8 [-1, 64, 8, 8] 36,864
        BatchNorm2d-9 [-1, 64, 8, 8] 128
        ReLU-10 [-1, 64, 8, 8] 0
        Conv2d-11 [-1, 256, 8, 8] 16,384
        BatchNorm2d-12 [-1, 256, 8, 8] 512
        Conv2d-13 [-1, 256, 8, 8] 16,384
        BatchNorm2d-14 [-1, 256, 8, 8] 512
        ReLU-15 [-1, 256, 8, 8] 0
        Bottleneck-16 [-1, 256, 8, 8] 0
        Conv2d-17 [-1, 64, 8, 8] 16,384
        BatchNorm2d-18 [-1, 64, 8, 8] 128
        ReLU-19 [-1, 64, 8, 8] 0
        Conv2d-20 [-1, 64, 8, 8] 36,864
        BatchNorm2d-21 [-1, 64, 8, 8] 128
        ReLU-22 [-1, 64, 8, 8] 0
        Conv2d-23 [-1, 256, 8, 8] 16,384
        BatchNorm2d-24 [-1, 256, 8, 8] 512
        ReLU-25 [-1, 256, 8, 8] 0
        Bottleneck-26 [-1, 256, 8, 8] 0
        Conv2d-27 [-1, 64, 8, 8] 16,384
        BatchNorm2d-28 [-1, 64, 8, 8] 128
        ReLU-29 [-1, 64, 8, 8] 0
        Conv2d-30 [-1, 64, 8, 8] 36,864
        BatchNorm2d-31 [-1, 64, 8, 8] 128
        ReLU-32 [-1, 64, 8, 8] 0
        Conv2d-33 [-1, 256, 8, 8] 16,384
        BatchNorm2d-34 [-1, 256, 8, 8] 512
        ReLU-35 [-1, 256, 8, 8] 0
        Bottleneck-36 [-1, 256, 8, 8] 0
        Conv2d-37 [-1, 128, 8, 8] 32,768
        BatchNorm2d-38 [-1, 128, 8, 8] 256
        ReLU-39 [-1, 128, 8, 8] 0
        Conv2d-40 [-1, 128, 4, 4] 147,456
        BatchNorm2d-41 [-1, 128, 4, 4] 256
        ReLU-42 [-1, 128, 4, 4] 0
        Conv2d-43 [-1, 512, 4, 4] 65,536
        BatchNorm2d-44 [-1, 512, 4, 4] 1,024
        Conv2d-45 [-1, 512, 4, 4] 131,072
        BatchNorm2d-46 [-1, 512, 4, 4] 1,024
        ReLU-47 [-1, 512, 4, 4] 0
        Bottleneck-48 [-1, 512, 4, 4] 0
        Conv2d-49 [-1, 128, 4, 4] 65,536
        BatchNorm2d-50 [-1, 128, 4, 4] 256
        ReLU-51 [-1, 128, 4, 4] 0
        Conv2d-52 [-1, 128, 4, 4] 147,456
        BatchNorm2d-53 [-1, 128, 4, 4] 256
        ReLU-54 [-1, 128, 4, 4] 0
        Conv2d-55 [-1, 512, 4, 4] 65,536
        BatchNorm2d-56 [-1, 512, 4, 4] 1,024
        ReLU-57 [-1, 512, 4, 4] 0
        Bottleneck-58 [-1, 512, 4, 4] 0
        Conv2d-59 [-1, 128, 4, 4] 65,536
        BatchNorm2d-60 [-1, 128, 4, 4] 256
        ReLU-61 [-1, 128, 4, 4] 0
        Conv2d-62 [-1, 128, 4, 4] 147,456
        BatchNorm2d-63 [-1, 128, 4, 4] 256
        ReLU-64 [-1, 128, 4, 4] 0
        Conv2d-65 [-1, 512, 4, 4] 65,536
        BatchNorm2d-66 [-1, 512, 4, 4] 1,024
        ReLU-67 [-1, 512, 4, 4] 0
        Bottleneck-68 [-1, 512, 4, 4] 0
        Conv2d-69 [-1, 128, 4, 4] 65,536
        BatchNorm2d-70 [-1, 128, 4, 4] 256
        ReLU-71 [-1, 128, 4, 4] 0
        Conv2d-72 [-1, 128, 4, 4] 147,456
        BatchNorm2d-73 [-1, 128, 4, 4] 256
        ReLU-74 [-1, 128, 4, 4] 0
        Conv2d-75 [-1, 512, 4, 4] 65,536
        BatchNorm2d-76 [-1, 512, 4, 4] 1,024
        ReLU-77 [-1, 512, 4, 4] 0
        Bottleneck-78 [-1, 512, 4, 4] 0
        Conv2d-79 [-1, 128, 4, 4] 65,536
        BatchNorm2d-80 [-1, 128, 4, 4] 256
        ReLU-81 [-1, 128, 4, 4] 0
        Conv2d-82 [-1, 128, 4, 4] 147,456
        BatchNorm2d-83 [-1, 128, 4, 4] 256
        ReLU-84 [-1, 128, 4, 4] 0
        Conv2d-85 [-1, 512, 4, 4] 65,536
        BatchNorm2d-86 [-1, 512, 4, 4] 1,024
        ReLU-87 [-1, 512, 4, 4] 0
        Bottleneck-88 [-1, 512, 4, 4] 0
        Conv2d-89 [-1, 128, 4, 4] 65,536
        BatchNorm2d-90 [-1, 128, 4, 4] 256
        ReLU-91 [-1, 128, 4, 4] 0
        Conv2d-92 [-1, 128, 4, 4] 147,456
        BatchNorm2d-93 [-1, 128, 4, 4] 256
        ReLU-94 [-1, 128, 4, 4] 0
        Conv2d-95 [-1, 512, 4, 4] 65,536
        BatchNorm2d-96 [-1, 512, 4, 4] 1,024
        ReLU-97 [-1, 512, 4, 4] 0
        Bottleneck-98 [-1, 512, 4, 4] 0
        Conv2d-99 [-1, 128, 4, 4] 65,536
        BatchNorm2d-100 [-1, 128, 4, 4] 256
        ReLU-101 [-1, 128, 4, 4] 0
        Conv2d-102 [-1, 128, 4, 4] 147,456
        BatchNorm2d-103 [-1, 128, 4, 4] 256
        ReLU-104 [-1, 128, 4, 4] 0
        Conv2d-105 [-1, 512, 4, 4] 65,536
        BatchNorm2d-106 [-1, 512, 4, 4] 1,024
        ReLU-107 [-1, 512, 4, 4] 0
        Bottleneck-108 [-1, 512, 4, 4] 0
        Conv2d-109 [-1, 128, 4, 4] 65,536
        BatchNorm2d-110 [-1, 128, 4, 4] 256
        ReLU-111 [-1, 128, 4, 4] 0
        Conv2d-112 [-1, 128, 4, 4] 147,456
        BatchNorm2d-113 [-1, 128, 4, 4] 256
        ReLU-114 [-1, 128, 4, 4] 0
        Conv2d-115 [-1, 512, 4, 4] 65,536
        BatchNorm2d-116 [-1, 512, 4, 4] 1,024
        ReLU-117 [-1, 512, 4, 4] 0
        Bottleneck-118 [-1, 512, 4, 4] 0
        Conv2d-119 [-1, 256, 4, 4] 131,072
        BatchNorm2d-120 [-1, 256, 4, 4] 512
        ReLU-121 [-1, 256, 4, 4] 0
        Conv2d-122 [-1, 256, 2, 2] 589,824
        BatchNorm2d-123 [-1, 256, 2, 2] 512
        ReLU-124 [-1, 256, 2, 2] 0
        Conv2d-125 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-126 [-1, 1024, 2, 2] 2,048
        Conv2d-127 [-1, 1024, 2, 2] 524,288
        BatchNorm2d-128 [-1, 1024, 2, 2] 2,048
        ReLU-129 [-1, 1024, 2, 2] 0
        Bottleneck-130 [-1, 1024, 2, 2] 0
        Conv2d-131 [-1, 256, 2, 2] 262,144
        BatchNorm2d-132 [-1, 256, 2, 2] 512
        ReLU-133 [-1, 256, 2, 2] 0
        Conv2d-134 [-1, 256, 2, 2] 589,824
        BatchNorm2d-135 [-1, 256, 2, 2] 512
        ReLU-136 [-1, 256, 2, 2] 0
        Conv2d-137 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-138 [-1, 1024, 2, 2] 2,048
        ReLU-139 [-1, 1024, 2, 2] 0
        Bottleneck-140 [-1, 1024, 2, 2] 0
        Conv2d-141 [-1, 256, 2, 2] 262,144
        BatchNorm2d-142 [-1, 256, 2, 2] 512
        ReLU-143 [-1, 256, 2, 2] 0
        Conv2d-144 [-1, 256, 2, 2] 589,824
        BatchNorm2d-145 [-1, 256, 2, 2] 512
        ReLU-146 [-1, 256, 2, 2] 0
        Conv2d-147 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-148 [-1, 1024, 2, 2] 2,048
        ReLU-149 [-1, 1024, 2, 2] 0
        Bottleneck-150 [-1, 1024, 2, 2] 0
        Conv2d-151 [-1, 256, 2, 2] 262,144
        BatchNorm2d-152 [-1, 256, 2, 2] 512
        ReLU-153 [-1, 256, 2, 2] 0
        Conv2d-154 [-1, 256, 2, 2] 589,824
        BatchNorm2d-155 [-1, 256, 2, 2] 512
        ReLU-156 [-1, 256, 2, 2] 0
        Conv2d-157 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-158 [-1, 1024, 2, 2] 2,048
        ReLU-159 [-1, 1024, 2, 2] 0
        Bottleneck-160 [-1, 1024, 2, 2] 0
        Conv2d-161 [-1, 256, 2, 2] 262,144
        BatchNorm2d-162 [-1, 256, 2, 2] 512
        ReLU-163 [-1, 256, 2, 2] 0
        Conv2d-164 [-1, 256, 2, 2] 589,824
        BatchNorm2d-165 [-1, 256, 2, 2] 512
        ReLU-166 [-1, 256, 2, 2] 0
        Conv2d-167 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-168 [-1, 1024, 2, 2] 2,048
        ReLU-169 [-1, 1024, 2, 2] 0
        Bottleneck-170 [-1, 1024, 2, 2] 0
        Conv2d-171 [-1, 256, 2, 2] 262,144
        BatchNorm2d-172 [-1, 256, 2, 2] 512
        ReLU-173 [-1, 256, 2, 2] 0
        Conv2d-174 [-1, 256, 2, 2] 589,824
        BatchNorm2d-175 [-1, 256, 2, 2] 512
        ReLU-176 [-1, 256, 2, 2] 0
        Conv2d-177 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-178 [-1, 1024, 2, 2] 2,048
        ReLU-179 [-1, 1024, 2, 2] 0
        Bottleneck-180 [-1, 1024, 2, 2] 0
        Conv2d-181 [-1, 256, 2, 2] 262,144
        BatchNorm2d-182 [-1, 256, 2, 2] 512
        ReLU-183 [-1, 256, 2, 2] 0
        Conv2d-184 [-1, 256, 2, 2] 589,824
        BatchNorm2d-185 [-1, 256, 2, 2] 512
        ReLU-186 [-1, 256, 2, 2] 0
        Conv2d-187 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-188 [-1, 1024, 2, 2] 2,048
        ReLU-189 [-1, 1024, 2, 2] 0
        Bottleneck-190 [-1, 1024, 2, 2] 0
        Conv2d-191 [-1, 256, 2, 2] 262,144
        BatchNorm2d-192 [-1, 256, 2, 2] 512
        ReLU-193 [-1, 256, 2, 2] 0
        Conv2d-194 [-1, 256, 2, 2] 589,824
        BatchNorm2d-195 [-1, 256, 2, 2] 512
        ReLU-196 [-1, 256, 2, 2] 0
        Conv2d-197 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-198 [-1, 1024, 2, 2] 2,048
        ReLU-199 [-1, 1024, 2, 2] 0
        Bottleneck-200 [-1, 1024, 2, 2] 0
        Conv2d-201 [-1, 256, 2, 2] 262,144
        BatchNorm2d-202 [-1, 256, 2, 2] 512
        ReLU-203 [-1, 256, 2, 2] 0
        Conv2d-204 [-1, 256, 2, 2] 589,824
        BatchNorm2d-205 [-1, 256, 2, 2] 512
        ReLU-206 [-1, 256, 2, 2] 0
        Conv2d-207 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-208 [-1, 1024, 2, 2] 2,048
        ReLU-209 [-1, 1024, 2, 2] 0
        Bottleneck-210 [-1, 1024, 2, 2] 0
        Conv2d-211 [-1, 256, 2, 2] 262,144
        BatchNorm2d-212 [-1, 256, 2, 2] 512
        ReLU-213 [-1, 256, 2, 2] 0
        Conv2d-214 [-1, 256, 2, 2] 589,824
        BatchNorm2d-215 [-1, 256, 2, 2] 512
        ReLU-216 [-1, 256, 2, 2] 0
        Conv2d-217 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-218 [-1, 1024, 2, 2] 2,048
        ReLU-219 [-1, 1024, 2, 2] 0
        Bottleneck-220 [-1, 1024, 2, 2] 0
        Conv2d-221 [-1, 256, 2, 2] 262,144
        BatchNorm2d-222 [-1, 256, 2, 2] 512
        ReLU-223 [-1, 256, 2, 2] 0
        Conv2d-224 [-1, 256, 2, 2] 589,824
        BatchNorm2d-225 [-1, 256, 2, 2] 512
        ReLU-226 [-1, 256, 2, 2] 0
        Conv2d-227 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-228 [-1, 1024, 2, 2] 2,048
        ReLU-229 [-1, 1024, 2, 2] 0
        Bottleneck-230 [-1, 1024, 2, 2] 0
        Conv2d-231 [-1, 256, 2, 2] 262,144
        BatchNorm2d-232 [-1, 256, 2, 2] 512
        ReLU-233 [-1, 256, 2, 2] 0
        Conv2d-234 [-1, 256, 2, 2] 589,824
        BatchNorm2d-235 [-1, 256, 2, 2] 512
        ReLU-236 [-1, 256, 2, 2] 0
        Conv2d-237 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-238 [-1, 1024, 2, 2] 2,048
        ReLU-239 [-1, 1024, 2, 2] 0
        Bottleneck-240 [-1, 1024, 2, 2] 0
        Conv2d-241 [-1, 256, 2, 2] 262,144
        BatchNorm2d-242 [-1, 256, 2, 2] 512
        ReLU-243 [-1, 256, 2, 2] 0
        Conv2d-244 [-1, 256, 2, 2] 589,824
        BatchNorm2d-245 [-1, 256, 2, 2] 512
        ReLU-246 [-1, 256, 2, 2] 0
        Conv2d-247 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-248 [-1, 1024, 2, 2] 2,048
        ReLU-249 [-1, 1024, 2, 2] 0
        Bottleneck-250 [-1, 1024, 2, 2] 0
        Conv2d-251 [-1, 256, 2, 2] 262,144
        BatchNorm2d-252 [-1, 256, 2, 2] 512
        ReLU-253 [-1, 256, 2, 2] 0
        Conv2d-254 [-1, 256, 2, 2] 589,824
        BatchNorm2d-255 [-1, 256, 2, 2] 512
        ReLU-256 [-1, 256, 2, 2] 0
        Conv2d-257 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-258 [-1, 1024, 2, 2] 2,048
        ReLU-259 [-1, 1024, 2, 2] 0
        Bottleneck-260 [-1, 1024, 2, 2] 0
        Conv2d-261 [-1, 256, 2, 2] 262,144
        BatchNorm2d-262 [-1, 256, 2, 2] 512
        ReLU-263 [-1, 256, 2, 2] 0
        Conv2d-264 [-1, 256, 2, 2] 589,824
        BatchNorm2d-265 [-1, 256, 2, 2] 512
        ReLU-266 [-1, 256, 2, 2] 0
        Conv2d-267 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-268 [-1, 1024, 2, 2] 2,048
        ReLU-269 [-1, 1024, 2, 2] 0
        Bottleneck-270 [-1, 1024, 2, 2] 0
        Conv2d-271 [-1, 256, 2, 2] 262,144
        BatchNorm2d-272 [-1, 256, 2, 2] 512
        ReLU-273 [-1, 256, 2, 2] 0
        Conv2d-274 [-1, 256, 2, 2] 589,824
        BatchNorm2d-275 [-1, 256, 2, 2] 512
        ReLU-276 [-1, 256, 2, 2] 0
        Conv2d-277 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-278 [-1, 1024, 2, 2] 2,048
        ReLU-279 [-1, 1024, 2, 2] 0
        Bottleneck-280 [-1, 1024, 2, 2] 0
        Conv2d-281 [-1, 256, 2, 2] 262,144
        BatchNorm2d-282 [-1, 256, 2, 2] 512
        ReLU-283 [-1, 256, 2, 2] 0
        Conv2d-284 [-1, 256, 2, 2] 589,824
        BatchNorm2d-285 [-1, 256, 2, 2] 512
        ReLU-286 [-1, 256, 2, 2] 0
        Conv2d-287 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-288 [-1, 1024, 2, 2] 2,048
        ReLU-289 [-1, 1024, 2, 2] 0
        Bottleneck-290 [-1, 1024, 2, 2] 0
        Conv2d-291 [-1, 256, 2, 2] 262,144
        BatchNorm2d-292 [-1, 256, 2, 2] 512
        ReLU-293 [-1, 256, 2, 2] 0
        Conv2d-294 [-1, 256, 2, 2] 589,824
        BatchNorm2d-295 [-1, 256, 2, 2] 512
        ReLU-296 [-1, 256, 2, 2] 0
        Conv2d-297 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-298 [-1, 1024, 2, 2] 2,048
        ReLU-299 [-1, 1024, 2, 2] 0
        Bottleneck-300 [-1, 1024, 2, 2] 0
        Conv2d-301 [-1, 256, 2, 2] 262,144
        BatchNorm2d-302 [-1, 256, 2, 2] 512
        ReLU-303 [-1, 256, 2, 2] 0
        Conv2d-304 [-1, 256, 2, 2] 589,824
        BatchNorm2d-305 [-1, 256, 2, 2] 512
        ReLU-306 [-1, 256, 2, 2] 0
        Conv2d-307 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-308 [-1, 1024, 2, 2] 2,048
        ReLU-309 [-1, 1024, 2, 2] 0
        Bottleneck-310 [-1, 1024, 2, 2] 0
        Conv2d-311 [-1, 256, 2, 2] 262,144
        BatchNorm2d-312 [-1, 256, 2, 2] 512
        ReLU-313 [-1, 256, 2, 2] 0
        Conv2d-314 [-1, 256, 2, 2] 589,824
        BatchNorm2d-315 [-1, 256, 2, 2] 512
        ReLU-316 [-1, 256, 2, 2] 0
        Conv2d-317 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-318 [-1, 1024, 2, 2] 2,048
        ReLU-319 [-1, 1024, 2, 2] 0
        Bottleneck-320 [-1, 1024, 2, 2] 0
        Conv2d-321 [-1, 256, 2, 2] 262,144
        BatchNorm2d-322 [-1, 256, 2, 2] 512
        ReLU-323 [-1, 256, 2, 2] 0
        Conv2d-324 [-1, 256, 2, 2] 589,824
        BatchNorm2d-325 [-1, 256, 2, 2] 512
        ReLU-326 [-1, 256, 2, 2] 0
        Conv2d-327 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-328 [-1, 1024, 2, 2] 2,048
        ReLU-329 [-1, 1024, 2, 2] 0
        Bottleneck-330 [-1, 1024, 2, 2] 0
        Conv2d-331 [-1, 256, 2, 2] 262,144
        BatchNorm2d-332 [-1, 256, 2, 2] 512
        ReLU-333 [-1, 256, 2, 2] 0
        Conv2d-334 [-1, 256, 2, 2] 589,824
        BatchNorm2d-335 [-1, 256, 2, 2] 512
        ReLU-336 [-1, 256, 2, 2] 0
        Conv2d-337 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-338 [-1, 1024, 2, 2] 2,048
        ReLU-339 [-1, 1024, 2, 2] 0
        Bottleneck-340 [-1, 1024, 2, 2] 0
        Conv2d-341 [-1, 256, 2, 2] 262,144
        BatchNorm2d-342 [-1, 256, 2, 2] 512
        ReLU-343 [-1, 256, 2, 2] 0
        Conv2d-344 [-1, 256, 2, 2] 589,824
        BatchNorm2d-345 [-1, 256, 2, 2] 512
        ReLU-346 [-1, 256, 2, 2] 0
        Conv2d-347 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-348 [-1, 1024, 2, 2] 2,048
        ReLU-349 [-1, 1024, 2, 2] 0
        Bottleneck-350 [-1, 1024, 2, 2] 0
        Conv2d-351 [-1, 256, 2, 2] 262,144
        BatchNorm2d-352 [-1, 256, 2, 2] 512
        ReLU-353 [-1, 256, 2, 2] 0
        Conv2d-354 [-1, 256, 2, 2] 589,824
        BatchNorm2d-355 [-1, 256, 2, 2] 512
        ReLU-356 [-1, 256, 2, 2] 0
        Conv2d-357 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-358 [-1, 1024, 2, 2] 2,048
        ReLU-359 [-1, 1024, 2, 2] 0
        Bottleneck-360 [-1, 1024, 2, 2] 0
        Conv2d-361 [-1, 256, 2, 2] 262,144
        BatchNorm2d-362 [-1, 256, 2, 2] 512
        ReLU-363 [-1, 256, 2, 2] 0
        Conv2d-364 [-1, 256, 2, 2] 589,824
        BatchNorm2d-365 [-1, 256, 2, 2] 512
        ReLU-366 [-1, 256, 2, 2] 0
        Conv2d-367 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-368 [-1, 1024, 2, 2] 2,048
        ReLU-369 [-1, 1024, 2, 2] 0
        Bottleneck-370 [-1, 1024, 2, 2] 0
        Conv2d-371 [-1, 256, 2, 2] 262,144
        BatchNorm2d-372 [-1, 256, 2, 2] 512
        ReLU-373 [-1, 256, 2, 2] 0
        Conv2d-374 [-1, 256, 2, 2] 589,824
        BatchNorm2d-375 [-1, 256, 2, 2] 512
        ReLU-376 [-1, 256, 2, 2] 0
        Conv2d-377 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-378 [-1, 1024, 2, 2] 2,048
        ReLU-379 [-1, 1024, 2, 2] 0
        Bottleneck-380 [-1, 1024, 2, 2] 0
        Conv2d-381 [-1, 256, 2, 2] 262,144
        BatchNorm2d-382 [-1, 256, 2, 2] 512
        ReLU-383 [-1, 256, 2, 2] 0
        Conv2d-384 [-1, 256, 2, 2] 589,824
        BatchNorm2d-385 [-1, 256, 2, 2] 512
        ReLU-386 [-1, 256, 2, 2] 0
        Conv2d-387 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-388 [-1, 1024, 2, 2] 2,048
        ReLU-389 [-1, 1024, 2, 2] 0
        Bottleneck-390 [-1, 1024, 2, 2] 0
        Conv2d-391 [-1, 256, 2, 2] 262,144
        BatchNorm2d-392 [-1, 256, 2, 2] 512
        ReLU-393 [-1, 256, 2, 2] 0
        Conv2d-394 [-1, 256, 2, 2] 589,824
        BatchNorm2d-395 [-1, 256, 2, 2] 512
        ReLU-396 [-1, 256, 2, 2] 0
        Conv2d-397 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-398 [-1, 1024, 2, 2] 2,048
        ReLU-399 [-1, 1024, 2, 2] 0
        Bottleneck-400 [-1, 1024, 2, 2] 0
        Conv2d-401 [-1, 256, 2, 2] 262,144
        BatchNorm2d-402 [-1, 256, 2, 2] 512
        ReLU-403 [-1, 256, 2, 2] 0
        Conv2d-404 [-1, 256, 2, 2] 589,824
        BatchNorm2d-405 [-1, 256, 2, 2] 512
        ReLU-406 [-1, 256, 2, 2] 0
        Conv2d-407 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-408 [-1, 1024, 2, 2] 2,048
        ReLU-409 [-1, 1024, 2, 2] 0
        Bottleneck-410 [-1, 1024, 2, 2] 0
        Conv2d-411 [-1, 256, 2, 2] 262,144
        BatchNorm2d-412 [-1, 256, 2, 2] 512
        ReLU-413 [-1, 256, 2, 2] 0
        Conv2d-414 [-1, 256, 2, 2] 589,824
        BatchNorm2d-415 [-1, 256, 2, 2] 512
        ReLU-416 [-1, 256, 2, 2] 0
        Conv2d-417 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-418 [-1, 1024, 2, 2] 2,048
        ReLU-419 [-1, 1024, 2, 2] 0
        Bottleneck-420 [-1, 1024, 2, 2] 0
        Conv2d-421 [-1, 256, 2, 2] 262,144
        BatchNorm2d-422 [-1, 256, 2, 2] 512
        ReLU-423 [-1, 256, 2, 2] 0
        Conv2d-424 [-1, 256, 2, 2] 589,824
        BatchNorm2d-425 [-1, 256, 2, 2] 512
        ReLU-426 [-1, 256, 2, 2] 0
        Conv2d-427 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-428 [-1, 1024, 2, 2] 2,048
        ReLU-429 [-1, 1024, 2, 2] 0
        Bottleneck-430 [-1, 1024, 2, 2] 0
        Conv2d-431 [-1, 256, 2, 2] 262,144
        BatchNorm2d-432 [-1, 256, 2, 2] 512
        ReLU-433 [-1, 256, 2, 2] 0
        Conv2d-434 [-1, 256, 2, 2] 589,824
        BatchNorm2d-435 [-1, 256, 2, 2] 512
        ReLU-436 [-1, 256, 2, 2] 0
        Conv2d-437 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-438 [-1, 1024, 2, 2] 2,048
        ReLU-439 [-1, 1024, 2, 2] 0
        Bottleneck-440 [-1, 1024, 2, 2] 0
        Conv2d-441 [-1, 256, 2, 2] 262,144
        BatchNorm2d-442 [-1, 256, 2, 2] 512
        ReLU-443 [-1, 256, 2, 2] 0
        Conv2d-444 [-1, 256, 2, 2] 589,824
        BatchNorm2d-445 [-1, 256, 2, 2] 512
        ReLU-446 [-1, 256, 2, 2] 0
        Conv2d-447 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-448 [-1, 1024, 2, 2] 2,048
        ReLU-449 [-1, 1024, 2, 2] 0
        Bottleneck-450 [-1, 1024, 2, 2] 0
        Conv2d-451 [-1, 256, 2, 2] 262,144
        BatchNorm2d-452 [-1, 256, 2, 2] 512
        ReLU-453 [-1, 256, 2, 2] 0
        Conv2d-454 [-1, 256, 2, 2] 589,824
        BatchNorm2d-455 [-1, 256, 2, 2] 512
        ReLU-456 [-1, 256, 2, 2] 0
        Conv2d-457 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-458 [-1, 1024, 2, 2] 2,048
        ReLU-459 [-1, 1024, 2, 2] 0
        Bottleneck-460 [-1, 1024, 2, 2] 0
        Conv2d-461 [-1, 256, 2, 2] 262,144
        BatchNorm2d-462 [-1, 256, 2, 2] 512
        ReLU-463 [-1, 256, 2, 2] 0
        Conv2d-464 [-1, 256, 2, 2] 589,824
        BatchNorm2d-465 [-1, 256, 2, 2] 512
        ReLU-466 [-1, 256, 2, 2] 0
        Conv2d-467 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-468 [-1, 1024, 2, 2] 2,048
        ReLU-469 [-1, 1024, 2, 2] 0
        Bottleneck-470 [-1, 1024, 2, 2] 0
        Conv2d-471 [-1, 256, 2, 2] 262,144
        BatchNorm2d-472 [-1, 256, 2, 2] 512
        ReLU-473 [-1, 256, 2, 2] 0
        Conv2d-474 [-1, 256, 2, 2] 589,824
        BatchNorm2d-475 [-1, 256, 2, 2] 512
        ReLU-476 [-1, 256, 2, 2] 0
        Conv2d-477 [-1, 1024, 2, 2] 262,144
        BatchNorm2d-478 [-1, 1024, 2, 2] 2,048
        ReLU-479 [-1, 1024, 2, 2] 0
        Bottleneck-480 [-1, 1024, 2, 2] 0
        Conv2d-481 [-1, 512, 2, 2] 524,288
        BatchNorm2d-482 [-1, 512, 2, 2] 1,024
        ReLU-483 [-1, 512, 2, 2] 0
        Conv2d-484 [-1, 512, 1, 1] 2,359,296
        BatchNorm2d-485 [-1, 512, 1, 1] 1,024
        ReLU-486 [-1, 512, 1, 1] 0
        Conv2d-487 [-1, 2048, 1, 1] 1,048,576
        BatchNorm2d-488 [-1, 2048, 1, 1] 4,096
        Conv2d-489 [-1, 2048, 1, 1] 2,097,152
        BatchNorm2d-490 [-1, 2048, 1, 1] 4,096
        ReLU-491 [-1, 2048, 1, 1] 0
        Bottleneck-492 [-1, 2048, 1, 1] 0
        Conv2d-493 [-1, 512, 1, 1] 1,048,576
        BatchNorm2d-494 [-1, 512, 1, 1] 1,024
        ReLU-495 [-1, 512, 1, 1] 0
        Conv2d-496 [-1, 512, 1, 1] 2,359,296
        BatchNorm2d-497 [-1, 512, 1, 1] 1,024
        ReLU-498 [-1, 512, 1, 1] 0
        Conv2d-499 [-1, 2048, 1, 1] 1,048,576
        BatchNorm2d-500 [-1, 2048, 1, 1] 4,096
        ReLU-501 [-1, 2048, 1, 1] 0
        Bottleneck-502 [-1, 2048, 1, 1] 0
        Conv2d-503 [-1, 512, 1, 1] 1,048,576
        BatchNorm2d-504 [-1, 512, 1, 1] 1,024
        ReLU-505 [-1, 512, 1, 1] 0
        Conv2d-506 [-1, 512, 1, 1] 2,359,296
        BatchNorm2d-507 [-1, 512, 1, 1] 1,024
        ReLU-508 [-1, 512, 1, 1] 0
        Conv2d-509 [-1, 2048, 1, 1] 1,048,576
        BatchNorm2d-510 [-1, 2048, 1, 1] 4,096
        ReLU-511 [-1, 2048, 1, 1] 0
        Bottleneck-512 [-1, 2048, 1, 1] 0
        AdaptiveAvgPool2d-513 [-1, 2048, 1, 1] 0
        Linear-514 [-1, 100] 204,900
        LogSoftmax-515 [-1, 100] 0
        ================================================================
        Total params: 58,348,708
        Trainable params: 204,900
        Non-trainable params: 58,143,808
        ----------------------------------------------------------------
        Input size (MB): 0.01
        Forward/backward pass size (MB): 12.40
        Params size (MB): 222.58
        Estimated Total Size (MB): 234.99
        ----------------------------------------------------------------
        None
        Params to learn
        fc.0.weight
        fc.0.bias
        Files already downloaded and verified
        Files already downloaded and verified
        Epoch 0/9
        ----------
        Time elapsed 0m 21s
        train Loss: 7.5111 Acc: 0.1484
        Time elapsed 0m 26s
        valid Loss: 3.7821 Acc: 0.2493
        /usr/local/lib/python3.7/dist-packages/torch/optim/lr_scheduler.py:154: UserWarning: The epoch parameter in `scheduler.step()` was not necessary and is being deprecated where possible. Please use `scheduler.step()` to step the scheduler. During the deprecation, if epoch is different from None, the closed form is used instead of the new chainable form, where available. Please open an issue if you are unable to replicate your use case: https://github.com/pytorch/pytorch/issues/new/choose.
        warnings.warn(EPOCH_DEPRECATION_WARNING, UserWarning)
        Optimizer learning rate: 0.0100000

        Epoch 1/9
        ----------
        Time elapsed 0m 47s
        train Loss: 2.9405 Acc: 0.3109
        Time elapsed 0m 52s
        valid Loss: 3.2014 Acc: 0.2739
        Optimizer learning rate: 0.0100000

        Epoch 2/9
        ----------
        Time elapsed 1m 12s
        train Loss: 2.5866 Acc: 0.3622
        Time elapsed 1m 17s
        valid Loss: 3.2239 Acc: 0.2787
        Optimizer learning rate: 0.0100000

        Epoch 3/9
        ----------
        Time elapsed 1m 38s
        train Loss: 2.4077 Acc: 0.3969
        Time elapsed 1m 43s
        valid Loss: 3.2608 Acc: 0.2811
        Optimizer learning rate: 0.0100000

        Epoch 4/9
        ----------
        Time elapsed 2m 4s
        train Loss: 2.2742 Acc: 0.4263
        Time elapsed 2m 9s
        valid Loss: 3.4260 Acc: 0.2689
        Optimizer learning rate: 0.0100000

        Epoch 5/9
        ----------
        Time elapsed 2m 29s
        train Loss: 2.1942 Acc: 0.4434
        Time elapsed 2m 34s
        valid Loss: 3.4697 Acc: 0.2760
        Optimizer learning rate: 0.0100000

        Epoch 6/9
        ----------
        Time elapsed 2m 54s
        train Loss: 2.1369 Acc: 0.4583
        Time elapsed 2m 59s
        valid Loss: 3.5391 Acc: 0.2744
        Optimizer learning rate: 0.0100000

        Epoch 7/9
        ----------
        Time elapsed 3m 20s
        train Loss: 2.0382 Acc: 0.4771
        Time elapsed 3m 24s
        valid Loss: 3.5992 Acc: 0.2721
        Optimizer learning rate: 0.0100000

        Epoch 8/9
        ----------
        Time elapsed 3m 45s
        train Loss: 1.9776 Acc: 0.4939
        Time elapsed 3m 50s
        valid Loss: 3.7533 Acc: 0.2685
        Optimizer learning rate: 0.0100000

        Epoch 9/9
        ----------
        Time elapsed 4m 11s
        train Loss: 1.9309 Acc: 0.5035
        Time elapsed 4m 16s
        valid Loss: 3.9663 Acc: 0.2558
        Optimizer learning rate: 0.0100000

        Training complete in 4m 16s
        Best val Acc: 0.281100

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