Great then! I thought that this parameter was a % of the available memory. Everythiong more clear now.
Thanks a lot El miércoles, 3 de agosto de 2016, 16:11:40 (UTC+2), nouiz escribió: > > I suppose that your GPU is shared with the monitor? > > If so, this is normal that you can't raise the value too high. This % is > the % of the total GPU memory. Not of the free memory. So if we take too > much, then it don't let enought space for cudnn internal stuff. > > So mostly, don't use a too high cnmem value :) > > Fred > > On Wed, Aug 3, 2016 at 10:05 AM, BorjaH_85 <[email protected] > <javascript:>> wrote: > >> Hi all, >> >> I have been doing a benchmark regarding the gpu-based execution of Theano >> (0.8.2) and Keras (1.0.5) on Windows 10. I am comparing the training time >> of a CNN over the MNIST dataset in 3 scenarios: CPU, GPU without cuDNN and >> GPU with CUDNN. CUDA v7.5 and cuDNN v5.0 >> >> First two approaches go well, but I have gone into troubles with the >> sysenv variables configuration for the GPU+cuDNN trial. My error source is >> the CNMeM configuration. If I run the same python code with CNMeM values >> from 0 (disbaled) up to 0.75, I have no problems. Moreover, I obtain a drop >> in the training time of more than 50% compared to the general GPU execution. >> >> But I cannot go behind from 0.8. With 0.8, I receive the same compilation >> error. >> >> RuntimeError: ('The following error happened while compiling the node', >> GpuDnnConv{algo='small', inplace=True}(GpuContiguous.0, GpuContiguous.0, >> GpuAllocEmpty.0, GpuDnnConvDesc{border_mode='valid', subsample=(1, 1), >> conv_mode='conv', precision='float32'}.0, Constant{1.0}, Constant{0.0}), >> '\n', 'could not create cuDNN handle: CUDNN_STATUS_INTERNAL_ERROR') >> >> Best regards, >> >> Borja >> >> -- >> >> --- >> You received this message because you are subscribed to the Google Groups >> "theano-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- --- You received this message because you are subscribed to the Google Groups "theano-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
