{"action":"opened","issue":{"url":"https://api.github.com/repos/Theano/Theano/issues/4974","repository_url":"https://api.github.com/repos/Theano/Theano","labels_url":"https://api.github.com/repos/Theano/Theano/issues/4974/labels{/name}","comments_url":"https://api.github.com/repos/Theano/Theano/issues/4974/comments","events_url":"https://api.github.com/repos/Theano/Theano/issues/4974/events","html_url":"https://github.com/Theano/Theano/issues/4974","id":176958841,"number":4974,"title":"Theano is running very slow on GPU","user":{"login":"ibrahim-amer","id":9505175,"avatar_url":"https://avatars.githubusercontent.com/u/9505175?v=3","gravatar_id":"","url":"https://api.github.com/users/ibrahim-amer","html_url":"https://github.com/ibrahim-amer","followers_url":"https://api.github.com/users/ibrahim-amer/followers","following_url":"https://api.github.com/users/ibrahim-amer/following{/other_user}","gists_url":"https://api.github.com/users/ibrahim-amer/gists{/gist_id}","starred_url":"https://api.github.com/users/ibrahim-amer/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ibrahim-amer/subscriptions","organizations_url":"https://api.github.com/users/ibrahim-amer/orgs","repos_url":"https://api.github.com/users/ibrahim-amer/repos","events_url":"https://api.github.com/users/ibrahim-amer/events{/privacy}","received_events_url":"https://api.github.com/users/ibrahim-amer/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-09-14T16:41:53Z","updated_at":"2016-09-14T16:41:53Z","closed_at":null,"body":"I'm using Theano backend on Keras running on jupyter ipython notebook. Everything was working fine couples of days ago, but today I notice that it is running very very slow !, I think running it on CPU is much faster than that. I'm running [ mnist example](https://github.com/fchollet/keras/blob/master/examples/mnist_cnn.py) without making any changes. The batch (128 size) takes too long to process around 5 minutes or something to finish, the next batch takes the same time almost or longer, it used to run mnist example very very fast (170 second for the whole epoch). \r\n\r\nPlease help me how could I figure out the problem\r\nNote: I tried it using anaconda then I tried it using winpython and the same problem occur.\r\n\r\nI'm using windows 10, 16GB ram, Nvidia GTX 660 2 GB, cuDNN either enabled or disabled the same problem occur"}}
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