training time and number of GPUs

[Marshall-yao]

Hi, thanks for your wonderful work and opening source.
Could you please tell me how long did you train the model , the kind of GPU and number of GPUs?

Best regards

[WenlongZhang0517]

Thanks for your interest in our work!
It takes about 55 hours (total 500 K iterations) to train the RankSRGAN using 4 Titan Xp GPUs.
The training time is slower than standard SRGAN. The reason is that the patch size of standard SRGAN is set to 128, due to Ranker needs a larger size to predict the ranking score, we set the patch size to 296.

Best regards

[Marshall-yao]

@wenlongzhang0724
Thanks very much for your patient reply. Yes, due to larger patch size, training time is longer.