Issue with Global Step Iteration

[jenabbhatia]

On running this code with only CPU, it is taking long hours in training, more than 5 hours. I have limited my train.enc file with only 20 lines, along with train.dec, test.enc, test.dec, still i do not understand why it is taking too much time. What other changes need to be done if we change the enc and dec files. What is the use of global step iteration which calculates perplexity.??? Please can anybody help me out these.