Mnist update (#469)

* mnist added dcgan

* mnist added

* mnist improved

* Update main.py

Author: surgan12

mnist/main.py

@@ -6,24 +6,25 @@
 import torch.optim as optim
 from torchvision import datasets, transforms
 
+
 class Net(nn.Module):
     def __init__(self):
         super(Net, self).__init__()
-        self.conv1 = nn.Conv2d(1, 10, kernel_size=5)
-        self.conv2 = nn.Conv2d(10, 20, kernel_size=5)
-        self.conv2_drop = nn.Dropout2d()
-        self.fc1 = nn.Linear(320, 50)
-        self.fc2 = nn.Linear(50, 10)
+        self.conv1 = nn.Conv2d(1, 20, 5, 1)
+        self.conv2 = nn.Conv2d(20, 50, 5, 1)
+        self.fc1 = nn.Linear(4*4*50, 500)
+        self.fc2 = nn.Linear(500, 10)
 
     def forward(self, x):
-        x = F.relu(F.max_pool2d(self.conv1(x), 2))
-        x = F.relu(F.max_pool2d(self.conv2_drop(self.conv2(x)), 2))
-        x = x.view(-1, 320)
+        x = F.relu(self.conv1(x))
+        x = F.max_pool2d(x, 2, 2)
+        x = F.relu(self.conv2(x))
+        x = F.max_pool2d(x, 2, 2)
+        x = x.view(-1, 4*4*50)
         x = F.relu(self.fc1(x))
-        x = F.dropout(x, training=self.training)
         x = self.fc2(x)
         return F.log_softmax(x, dim=1)
-
+    
 def train(args, model, device, train_loader, optimizer, epoch):
     model.train()
     for batch_idx, (data, target) in enumerate(train_loader):
@@ -51,6 +52,7 @@ def test(args, model, device, test_loader):
             correct += pred.eq(target.view_as(pred)).sum().item()
 
     test_loss /= len(test_loader.dataset)
+
     print('\nTest set: Average loss: {:.4f}, Accuracy: {}/{} ({:.0f}%)\n'.format(
         test_loss, correct, len(test_loader.dataset),
         100. * correct / len(test_loader.dataset)))
@@ -74,6 +76,9 @@ def main():
                         help='random seed (default: 1)')
     parser.add_argument('--log-interval', type=int, default=10, metavar='N',
                         help='how many batches to wait before logging training status')
+    
+    parser.add_argument('--save-model', action='store_true', default=False,
+                        help='For Saving the current Model')
     args = parser.parse_args()
     use_cuda = not args.no_cuda and torch.cuda.is_available()
 
@@ -104,6 +109,8 @@ def main():
         train(args, model, device, train_loader, optimizer, epoch)
         test(args, model, device, test_loader)
 
-
+    if (args.save_model):
+        torch.save(model.state_dict(),"mnist_cnn.pt")
+        
 if __name__ == '__main__':
-    main()
+    main()