Is this an error?

[andyyuan78]

ubgpu@ubgpu:~/github/pdnn/examples/mnist_rbm$ sudo ./run.sh --2015-05-16 15:48:05-- http://www.iro.umontreal.ca/~lisa/deep/data/mnist/mnist.pkl.gz Resolving www.iro.umontreal.ca (www.iro.umontreal.ca)... 132.204.24.179 Connecting to www.iro.umontreal.ca (www.iro.umontreal.ca)|132.204.24.179|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 16168813 (15M) [application/x-gzip] Saving to: 鈥榤nist.pkl.gz.6鈥

100%[===============================================================================================================================================================>] 16,168,813 2.98MB/s in 5.5s

2015-05-16 15:48:11 (2.81 MB/s) - 鈥榤nist.pkl.gz.6鈥saved [16168813/16168813]

Preparing datasets ... Traceback (most recent call last): File "data_prep.py", line 9, in train_set, valid_set, test_set = cPickle.load(f) File "/usr/lib/python2.7/gzip.py", line 261, in read self._read(readsize) File "/usr/lib/python2.7/gzip.py", line 308, in _read self._read_eof() File "/usr/lib/python2.7/gzip.py", line 347, in _read_eof hex(self.crc))) IOError: CRC check failed 0x3d667246 != 0x7f91b084L Training the RBM model ... ubgpu@ubgpu:~/github/pdnn/examples/mnist_rbm$ ubgpu@ubgpu:~/github/pdnn/examples/mnist_rbm$

[intfloat]

IOError: CRC check failed 0x3d667246 != 0x7f91b084L

It indicates your downloaded data file contains error, nothing to do with the code, you may delete plk.gz file and try again.