How should set validation_batch_size??

[jungsdao]

Hello,
I'd like to ask if there are some heuristics to set validation_batch_size ?
Normally validation set size is way smaller than training set. So having the same value for batch_size might be sensible.
Could you give me some advice on this?
Thank you in advance!

[ilyes319]

The largest number that fits your GPU is the best. Something like 16 or 32 is a good start.