Fred, Mmay be there is eventually a problem with float16 convolution... On Tuesday, July 26, 2016 at 11:58:40 AM UTC+2, [email protected] wrote: > > Fred, > > I run the convnet another time using nanguardmode and I had not an illegal > memory access. > The training cost start as 0.69336 and it doesn't change. > > This is the output: > > Mapped name None to device cuda: GeForce 840M > Using cuDNN version 5005 on context None > /home/luca/data/Theano-master/ > theano/tensor/signal/downsample.py:6: UserWarning: downsample module has > been moved to the theano.tensor.signal.pool module. > "downsample module has been moved to the theano.tensor.signal.pool > module.") > Using gpu device 0: GeForce 840M (CNMeM is disabled, cuDNN 5005) > Disabling C code for Elemwise{mul,no_inplace} due to unsupported float16 > Disabling C code for Elemwise{Cast{float32}} due to unsupported float16 > Disabling C code for Elemwise{Cast{float16}} due to unsupported float16 > Disabling C code for Elemwise{Cast{float16}} due to unsupported float16 > Disabling C code for Alloc due to unsupported float16 > Disabling C code for DiagonalSubtensor{inplace} due to unsupported float16 > Disabling C code for Pool{ds=(2, 2), ignore_border=False, st=(2, 2), > padding=(0, 0), mode='max'} due to unsupported float16 > Disabling C code for Pool{ds=(1, 2), ignore_border=False, st=(1, 2), > padding=(0, 0), mode='max'} due to unsupported float16 > Disabling C code for MaxPoolGrad{ds=(1, 2), ignore_border=False, st=(1, > 2), padding=(0, 0), mode='max'} due to unsupported float16 > Disabling C code for MaxPoolGrad{ds=(2, 2), ignore_border=False, st=(2, > 2), padding=(0, 0), mode='max'} due to unsupported float16 > Disabling C code for IncDiagonalSubtensor due to unsupported float16 > Disabling C code for DiagonalSubtensor{inplace} due to unsupported float16 > Disabling C code for Pool{ds=(2, 2), ignore_border=False, st=(2, 2), > padding=(0, 0), mode='max'} due to unsupported float16 > Disabling C code for Pool{ds=(1, 2), ignore_border=False, st=(1, 2), > padding=(0, 0), mode='max'} due to unsupported float16 > Disabling C code for MaxAndArgmax due to unsupported float16 > > > start time: > 26/07/2016 > 11:16:52 > > > images for training: 288 > images for validation: 50 > epochs: 300 > > > ... training neural network 25 > > > training @ iter = 0 > training @ iter = 200 > > > training cost 0.69336 > epoch 1, training batch 288/288,validation error 50.000 % > training @ iter = 400 > > > training cost 0.69336 > epoch 2, training batch 288/288,validation error 50.000 % > training @ iter = 600 > training @ iter = 800 > > > training cost 0.69336 > epoch 3, training batch 288/288,validation error 50.000 % > >
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