Cuda runtime error

[capuzz]

Hi,
thanks for the reply in the previous issue, but now I have another question.
I'm trying alexnet and the training seems to be working but when I should save the net (in SequentialTrainer.lua) in this way:

network:save(net_path,self._roi_means,self._roi_stds)

I have this error:

THCudaCheck FAIL file=/tmp/luarocks_cutorch-scm-1-T1qml2/cutorch/lib/THC/generic/THCStorage.cu line=66 error=2 : out of memory
/home/torch/install/bin/luajit: /home/torch/install/share/lua/5.1/torch/File.lua:351: cuda runtime error (2) : out of memory at /tmp/luarocks_cutorch-scm-1-T1qml2/cutorch/lib/THC/generic/THCStorage.cu:66
stack traceback:
[C]: in function 'read'
/home/torch/install/share/lua/5.1/torch/File.lua:351: in function </home/torch/install/share/lua/5.1/torch/File.lua:245>
[C]: in function 'read'
/home/torch/install/share/lua/5.1/torch/File.lua:351: in function 'readObject'
/home/torch/install/share/lua/5.1/torch/File.lua:369: in function 'readObject'
/home/torch/install/share/lua/5.1/nn/Module.lua:193: in function 'read'
/home/torch/install/share/lua/5.1/torch/File.lua:351: in function 'readObject'
/home/torch/install/share/lua/5.1/nn/Module.lua:141: in function 'clone'
./network/Net.lua:125: in function 'save'
./train/SequentialTrainer.lua:150: in function '_trainBatch'
./train/SequentialTrainer.lua:97: in function 'train'
./network/NetworkWrapper.lua:40: in function 'trainNetwork'
main_train.lua:48: in main chunk
[C]: in function 'dofile'
.../torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk
[C]: at 0x00405d50

The problem seem to be in this line in Net.lua:

tmp_regressor = self.regressor:clone()

but I don't know why.
I tried to reduce the size of the dataset thinking it was a GPU problem but the error persists.