def save()

in cm/train_util.py [0:0]

• 21 lines of code
• 6 McCabe index (conditional complexity)

    def save(self):
        def save_checkpoint(rate, params):
            state_dict = self.mp_trainer.master_params_to_state_dict(params)
            if dist.get_rank() == 0:
                logger.log(f"saving model {rate}...")
                if not rate:
                    filename = f"model{(self.step+self.resume_step):06d}.pt"
                else:
                    filename = f"ema_{rate}_{(self.step+self.resume_step):06d}.pt"
                with bf.BlobFile(bf.join(get_blob_logdir(), filename), "wb") as f:
                    th.save(state_dict, f)

        for rate, params in zip(self.ema_rate, self.ema_params):
            save_checkpoint(rate, params)

        if dist.get_rank() == 0:
            with bf.BlobFile(
                bf.join(get_blob_logdir(), f"opt{(self.step+self.resume_step):06d}.pt"),
                "wb",
            ) as f:
                th.save(self.opt.state_dict(), f)

        # Save model parameters last to prevent race conditions where a restart
        # loads model at step N, but opt/ema state isn't saved for step N.
        save_checkpoint(0, self.mp_trainer.master_params)
        dist.barrier()