GPU in Google colab

Questions
1

I am trying to run my model with Google colab and make use of the GPUs. Can anybody indicate how to activate the GPUs?

Thank you in advance.

2

In the menu bar at the top there is an sub-menu called runtime. Inside this there is the option to change the runtime. You can switch to GPUs there.

3

Thanks for your response.

Unfortunately, I am facing trouble in enabling the GPU with Theano. Any advice about that?