why set workers_per_gpu=0

[czczup]

Hi, thanks for your awesome work! I have a question about the dataloader of BigDetection, why set workers_per_gpu=0 in the dataloader? The current code requires 0.2-0.3s to load data in my experiment, I hope to use more workers to improve training efficiency, but set workers_per_gpu>0 seems to hang the code.

[bryanyzhu]

Thank you, the hanging issue could be caused by multiple reasons, which you might find solutions in MMdet issues. In general, it is likely because small shared memory and multi-threading. I suggest to install the latest MMdet to see if the issue persists.

[czczup]

Thank you, the hanging issue could be caused by multiple reasons, which you might find solutions in MMdet issues. In general, it is likely because small shared memory and multi-threading. I suggest to install the latest MMdet to see if the issue persists.

I solved it. Thank you for your reply.