To use cudnn 5 and 5.1, you must use Theano dev version. Theano 0.8.2 don't
support it. This is probably your problem.

If not, then give us the full error message.

Frédéric

On Thu, Feb 2, 2017 at 4:14 PM Feras Almasri <[email protected]> wrote:

> After I changed the pooling to sum I run into this problem
>
>  poolsize = (image_shape[0], image_shape[1])
>         pooled_out = pool.pool_2d(
>             input= self.input,
>             ds=poolsize,
>             ignore_border=True,
>             mode= 'sum'
>         )
>         self.output = pooled_out
>
> ERROR (theano.gof.opt): Optimization failure due to:
> local_pool_dnn_alternative
> ERROR (theano.gof.opt): node: Pool{ds=(20, 20), ignore_border=True,
> st=(20, 20), padding=(0, 0), mode='sum'}(HostFromGpu.0)
>
> Knowing this:
> Using gpu device 0: TITAN X (Pascal) (CNMeM is disabled, cuDNN 5105)
> UserWarning: Your cuDNN version is more recent than the one Theano
> officially supports. If you see any problems, try updating Theano or
> downgrading cuDNN to version 5.
>   warnings.warn(warn)
>
>
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