Thanks for your reply Fred. I am just curious to know what the deal is with 
Keras. It is also using conv3d but significantly faster and virtually no 
cpu utilization.


On Friday, March 3, 2017 at 5:46:19 AM UTC-8, nouiz wrote:
>
> Remove those flags. They slow down execution, new version Ron faster 
> without them.
>
> The CPU stay at 100%due to the driver doing busy wait on the GPU! So if 
> your GPU usage is high, don't worry, all should be good.
>
> Fred
>
> Le jeu. 2 mars 2017 18:26, Asghar Inanlou Asl <[email protected] 
> <javascript:>> a écrit :
>
>> Update: I tried the same convolution in Keras with Theano backend. It is 
>> shockingly faster than theano despite the fact that they also use conv3d (
>> here 
>> <https://github.com/fchollet/keras/blob/master/keras/layers/convolutional.py#L1028>
>> )
>>
>>
>> On Thursday, March 2, 2017 at 2:48:14 PM UTC-8, Asghar Inanlou Asl wrote:
>>>
>>> Hey guys,
>>>
>>> My cpu utilization is 100% when using theano.tensor.nnet.conv3d
>>> I am adding conv3d_fft, convgrad3d_fft and convtransp3d_fft to my 
>>> compiling mode in the theano function.
>>> The interesting part is my gpu utilization is also high. 
>>> Any ideas about why it uses cpu?
>>>
>>> Thanks!
>>>
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