No inf checks were recorded for this optimizer

[permanent-art]

Hi
I have encountered such a problem：assert len(optimizer_state["found_inf_per_device"]) > 0, "No inf checks were recorded for this optimizer."
AssertionError: No inf checks were recorded for this optimizer.
I checked my losses and it is a normal value.When I delete self. optimizer. zero_ grad(), it can run, but losses will not converge. May I ask what's going on here？

[permanent-art]

Firstly, non convergence due to delete zero_grad().
I would like to know the reason for No inf checks were recorded for this optimizer

[luke110]

Hello, I also encountered this problem, have you solved it?

[xifen523]

this bug is fix: don`t degrade your torch version

JDAI-CV/fast-reid#704 (comment)