cost.sum2 crash

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Simply add a cost.sum2 layer into the layer definition
2. Run it
3.

What is the expected output? What do you see instead?
It crashed and said:
python: src/nvmatrix.cu:738: bool NVMatrix::resize(int, int, bool): Assertion 
`_ownsData || (_numElements == numRows * numCols && isContiguous())' failed.
Error signal 6:

What version of the product are you using? On what operating system?
Latest cuda-convnet2 + Titan + CUDA 5.5 + Ubuntu 12.04

Please provide any additional information below.

To reproduce the problem, download the attached layer definition (reg.cfg and 
reg-params.cfg) and test it with command:

python convnet.py --data-path=. --save-path=./tmp --test-range=1 
--train-range=1 --layer-def=layers/reg-ori.cfg 
--layer-params=layers/reg-params.cfg --data-provider=dummy-labeled-1 --gpu=0

It seems that getAct() of the sum2 layer will produce a 0*128 matrix and thus 
cause the error.

Original issue reported on code.google.com by Phil....@gmail.com on 8 Aug 2014 at 12:42

Attachments:

• reg-params.cfg
• reg-ori.cfg

[GoogleCodeExporter]

Thanks for the bug report. This should be fixed in 184154ebaacf.

Original comment by akrizhev...@gmail.com on 8 Aug 2014 at 8:51

• Changed state: Fixed