Does it support DDP?

[Magauiya]

Dear authors,

Thank you for sharing the code. In the paper, you have mentioned that the Cal-GAN is trained using 4 GPUs and in the repo you kindly provided multigpu training instructions. However, I have faced several issues starting from Batch Norm layer, which does not support DDP as it is. By replacing the BatchNorm with SyncBatchNorm, I was able to launch dataparallel scheme, but the GPU utilization is very low (1-2%). So, my questions are:

• Is it possible to launch your implementation with Distributed Data Parallel (DDP) launcher (as described in your manual)?
• Which changes are needed for that if any?

Thank you!

[ButoneDream]

when i use ddp . it report an error . do you solve it ? 3q for your help