添加 'gpu/train_fail3.py'

gpu/train_fail3.py

@@ -0,0 +1,93 @@
+#!/usr/bin/python
+#coding=utf-8    
+'''
+If there are Chinese comments in the code，please add at the beginning：
+#!/usr/bin/python
+#coding=utf-8    
+
+Due to the adaptability of a100, before using the training environment, please use the recommended image of the 
+platform with cuda 11.Then adjust the code and submit the image.
+The image of this example is: dockerhub.pcl.ac.cn:5000/user-images/openi:cuda111_python37_pytorch191
+In the training environment, the uploaded dataset will be automatically placed in the /dataset directory. 
+If it is a single dataset: 
+if MnistDataset_torch.zip is selected,Then the dataset directory is /dataset/train, /dataset/test;
+If it is a multiple dataset: 
+If MnistDataset_torch.zip and checkpoint_epoch1_0.73.zip are selected, 
+the dataset directory is /dataset/MnistDataset_torch/train, /dataset/MnistDataset_torch/test
+and /dataset/checkpoint_epoch1_0.73/mnist_epoch1_0.73.pkl
+
+The model download path is under /model by default. Please specify the model output location to /model, 
+and the Qizhi platform will provide file downloads under the /model directory.
+'''
+
+
+from model import Model
+import numpy as np
+import torch
+from torchvision.datasets import mnist
+from torch.nn import CrossEntropyLoss
+from torch.optim import SGD
+from torch.utils.data import DataLoader
+from torchvision.transforms import ToTensor
+import argparse
+import datetime
+
+# Training settings
+parser = argparse.ArgumentParser(description='PyTorch MNIST Example')
+#The dataset location is placed under /dataset
+parser.add_argument('--traindata', default="/dataset/train" ,help='path to train dataset')
+parser.add_argument('--testdata', default="/dataset/test" ,help='path to test dataset')
+parser.add_argument('--epoch_size', type=int, default=1, help='how much epoch to train')
+parser.add_argument('--batch_size', type=int, default=256, help='how much batch_size in epoch')
+
+def gettime():
+    timestr = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+    return timestr
+
+if __name__ == '__main__':
+    args, unknown = parser.parse_known_args()
+    #log output
+    print(gettime(), 'cuda is available:{}'.format(torch.cuda.is_available()))  
+    device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
+    batch_size = args.batch_size
+    train_dataset = mnist.MNIST(root=args.traindata, train=True, transform=ToTensor(),download=False)
+    test_dataset = mnist.MNIST(root=args.testdata, train=False, transform=ToTensor(),download=False)
+    train_loader = DataLoader(train_dataset, batch_size=batch_size)
+    test_loader = DataLoader(test_dataset, batch_size=batch_size)
+    model = Model().to(device)
+    sgd = SGD(model.parameters(), lr=1e-1)
+    cost = CrossEntropyLoss()
+    epoch = args.epoch_size
+    print(gettime(), 'epoch_size is:{}'.format(epoch))
+    for _epoch in range(epoch):
+        print(gettime(), 'the {} epoch_size begin'.format(_epoch + 1))
+        model.train()
+        for idx, (train_x, train_label) in enumerate(train_loader):
+            train_x = train_x.to(device)
+            train_label = train_label.to(device)
+            label_np = np.zeros((train_label.shape[0], 10))
+            sgd.zero_grad()
+            predict_y = model(train_x.float())
+            loss = cost(predict_y, train_label.long())
+            if idx % 10 == 0:
+                print(gettime(), 'idx: {}, loss: {}'.format(idx, loss.sum().item()))
+            loss.backward()
+            sgd.step()
+
+        correct = 0
+        _sum = 0
+        model.eval()
+        for idx, (test_x, test_label) in enumerate(test_loader):
+            test_x = test_x
+            test_label = test_label
+            predict_y = model(test_x.to(device).float()).detach()
+            predict_ys = np.argmax(predict_y.cpu(), axis=-1)
+            label_np = test_label.numpy()
+            _ = predict_ys == test_label
+            correct += np.sum(_.numpy(), axis=-1)
+            _sum += _.shape[0]
+        print(gettime(), 'accuracy: {:.2f}'.format(correct / _sum))
+        #The model output location is placed under /model
+        torch.save(model, '/model/mnist_epoch{}_{:.2f}.pkl'.format(_epoch+1, correct / _sum))
+        print("----------this is the end--------")
+        print(a)