About greater batch size during validation

[KMint1819]

Hi, thanks for the great work!

When I was training with my own data, the bottleneck of the whole training was apparently the validation process since it's using batch size = 1. In one epoch of my training, it cost only 20% of time for training and back-prop but cost 80% for validation. Why can't the batch size for validation be greater than 1? Is there any issue or problems to be solved in order to have this feature?

[Frank-Dz]

Same question...