libgpuarray installation issues

Here are some issues I faced installing Theano and libgpuarray and the solutions for those:

  1. Installation failed because of not finding gpuarray
    1. use: python setup.py build_ext -L /usr/local/lib -I /usr/local/include and then python setup.py install
  2. error importing pygpu
    1. If CUDA is installed on the system you need to add the path for CUDA in LD_LIBRARY_PATH, like: export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
  3. example convolution_mlp.py does not run on CUDA
    1. Try running the job as root
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