Pass entire dataset to Keras fit
The progress displayed in the terminal output is for batches, so what you see is expected: in that epoch you are processing batch 1 of 1, where that batch has 500 samples in it. You can of course recover the number of samples processed by multiplying by your batch size.
I'm trying to pass the entire dataset to Keras fit function using batch_size parameter equals to length of the dataset, but it seems that process only 1 sample because under the Epoch 1/50 print of the fit function I see 1/1 and not, for example, 500/500, where 500 is the dataset length. How could I do?