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clementfarabet / ipam-tutorials

IPAM Tutorials on Theano/Torch
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Problem with L-BFGS training #13

Open tbluche opened 12 years ago

tbluche commented 12 years ago

Hi,

I've installed everything on my computer and tried to run the scripts of today's session, and that works fine until L-BFGS. I have the error below. This actually happens in autodiff code, maybe I don't have the right version (?)

Starting L-BFGS
Traceback (most recent call last):
  File "train_svm.py", line 72, in <module>
    sys.exit(main())
  File "train_svm.py", line 64, in main
    m=lbfgs_m)
  File "/usr/local/lib/python2.7/dist-packages/pyautodiff-0.0.1-py2.7.egg/autodiff/fmin_scipy.py", line 119, in fmin_l_bfgs_b
    f_df, lvars  = theano_f_df(fn, args, mode=theano_mode)
  File "/usr/local/lib/python2.7/dist-packages/pyautodiff-0.0.1-py2.7.egg/autodiff/fmin_scipy.py", line 72, in theano_f_df
    memo=dict(zip(orig_s_args, s_args)))
TypeError: clone_get_equiv() got an unexpected keyword argument 'memo'
jaberg commented 12 years ago

Thanks for reporting. This is a known issue that would be solved by updating Theano to use the development head.

The server running the IPAM tutorials is actually running this branch: https://github.com/jaberg/Theano/tree/ipam2012

There are a few tweaks there wrt the development head that make PyAutoDiff work better, I'm hoping that those changes will be merged to Theano master soon, and then I'll update the ipam-tutorial README.md with installation instructions.

tbluche commented 12 years ago

Oh good that works great, cheers!