| | |
| | | self.use_ddp = use_ddp |
| | | self.use_fsdp = use_fsdp |
| | | self.device = kwargs.get('device', "cuda") |
| | | self.avg_nbest_model = kwargs.get("avg_nbest_model", 5) |
| | | # self.kwargs = kwargs |
| | | self.log_interval = kwargs.get("log_interval", 50) |
| | | self.batch_total = 0 |
| | | self.use_fp16 = use_fp16 |
| | | self.disable_gpu_cache = kwargs.get("disable_gpu_cache", True) |
| | | # scaler = GradScaler(enabled=use_fp16) if use_fp16 else None |
| | | # scaler = ShardedGradScaler(enabled=use_fp16) if use_fsdp else scaler |
| | | # self.scaler = scaler |
| | | self.save_checkpoint_interval = kwargs.get("save_checkpoint_interval", 5000) |
| | | self.keep_nbest_models = kwargs.get("keep_nbest_models", -1) |
| | | self.validate_interval = kwargs.get("validate_interval", 5000) |
| | | self.keep_nbest_models = kwargs.get("keep_nbest_models", 500) |
| | | self.avg_keep_nbest_models_type = kwargs.get("avg_keep_nbest_models_type", "acc") |
| | | self.avg_nbest_model = kwargs.get("avg_nbest_model", 5) |
| | | self.accum_grad = kwargs.get("accum_grad", 1) |
| | | self.grad_clip = kwargs.get("grad_clip", 10.0) |
| | | self.grad_clip_type = kwargs.get("grad_clip_type", 2.0) |
| | | self.validate_interval = kwargs.get("validate_interval", 5000) |
| | | |
| | | |
| | | |
| | | try: |
| | |
| | | self.val_loss_avg = 0.0 |
| | | self.best_acc_idx = 0 |
| | | self.saved_ckpts = {} |
| | | self.val_acc_list = [] |
| | | self.step_or_epoch = -1 |
| | | self.best_step_or_epoch = "" |
| | | self.val_acc_step_or_eoch = {} |
| | | self.val_loss_step_or_eoch = {} |
| | | |
| | | def save_checkpoint(self, epoch, |
| | | step=None, |
| | |
| | | |
| | | if self.rank == 0: |
| | | logging.info(f"Save checkpoint: {epoch}, rank: {self.local_rank}\n") |
| | | self.step_or_epoch += 1 |
| | | # self.step_or_epoch += 1 |
| | | state = { |
| | | 'epoch': epoch, |
| | | 'state_dict': model.state_dict(), |
| | | 'optimizer': optim.state_dict(), |
| | | 'scheduler': scheduler.state_dict(), |
| | | "acc": self.val_acc_list, |
| | | "step_or_epoch": self.step_or_epoch, |
| | | "saved_ckpts": self.saved_ckpts, |
| | | "val_acc_step_or_eoch": self.val_acc_step_or_eoch, |
| | | "val_loss_step_or_eoch": self.val_loss_step_or_eoch, |
| | | "best_step_or_epoch": self.best_step_or_epoch, |
| | | "avg_keep_nbest_models_type": slef.avg_keep_nbest_models_type, |
| | | } |
| | | if hasattr(model, "module"): |
| | | state["state_dict"] = model.module.state_dict() |
| | |
| | | logging.info(f'\nCheckpoint saved to {filename}\n') |
| | | latest = Path(os.path.join(self.output_dir, f'model.pt')) |
| | | torch.save(state, latest) |
| | | |
| | | if self.val_acc_list[self.step_or_epoch] >= self.val_acc_list[self.best_acc_idx]: |
| | | self.best_acc_idx = self.step_or_epoch |
| | | best_ckpt = Path(os.path.join(self.output_dir, f'model.pt.best')) |
| | | torch.save(state, best_ckpt) |
| | | logging.info(f"Update best acc: {self.val_acc_list[self.best_acc_idx]}, {best_ckpt}") |
| | | if self.best_step_or_epoch == "": |
| | | self.best_step_or_epoch = ckpt_name |
| | | |
| | | if self.avg_keep_nbest_models_type == "acc": |
| | | if self.val_acc_step_or_eoch[ckpt_name] >= self.val_acc_step_or_eoch[self.best_step_or_epoch]: |
| | | self.best_step_or_epoch = ckpt_name |
| | | best_ckpt = Path(os.path.join(self.output_dir, f'model.pt.best')) |
| | | torch.save(state, best_ckpt) |
| | | logging.info(f"Update best acc: {self.val_acc_step_or_eoch[self.best_step_or_epoch]}, {best_ckpt}") |
| | | else: |
| | | logging.info(f"No improvement in acc: {self.val_acc_step_or_eoch[ckpt_name]} < {self.val_acc_step_or_eoch[self.best_step_or_epoch]}") |
| | | elif self.avg_keep_nbest_models_type == "loss": |
| | | if self.val_loss_step_or_eoch[ckpt_name] <= self.val_loss_step_or_eoch[self.best_step_or_epoch]: |
| | | self.best_step_or_epoch = ckpt_name |
| | | best_ckpt = Path(os.path.join(self.output_dir, f'model.pt.best')) |
| | | torch.save(state, best_ckpt) |
| | | logging.info(f"Update best loss: {self.val_loss_step_or_eoch[self.best_step_or_epoch]}, {best_ckpt}") |
| | | else: |
| | | logging.info(f"No improvement in loss: {self.val_loss_step_or_eoch[ckpt_name]} > {self.val_loss_step_or_eoch[self.best_step_or_epoch]}") |
| | | else: |
| | | logging.info(f"No improvement in acc: {self.val_acc_list[self.best_acc_idx]}") |
| | | |
| | | print("Undo") |
| | | self.saved_ckpts[ckpt_name] = getattr(self, f"val_{self.avg_keep_nbest_models_type}_step_or_eoch")[ckpt_name] |
| | | if self.keep_nbest_models > 0: |
| | | self.saved_ckpts[ckpt_name] = self.val_acc_list[-1] |
| | | if len(self.saved_ckpts) > self.keep_nbest_models: |
| | | |
| | | min_key = min(self.saved_ckpts, key=self.saved_ckpts.get) |
| | | if min_key in self.saved_ckpts: |
| | | del self.saved_ckpts[min_key] |
| | | filename = os.path.join(self.output_dir, min_key) |
| | | if self.avg_keep_nbest_models_type == "acc": |
| | | key = min(self.saved_ckpts, key=self.saved_ckpts.get) |
| | | else: |
| | | key = max(self.saved_ckpts, key=self.saved_ckpts.get) |
| | | if key in self.saved_ckpts: |
| | | del self.saved_ckpts[key] |
| | | filename = os.path.join(self.output_dir, key) |
| | | logging.info(f"Delete: {filename}") |
| | | if os.path.exists(filename): |
| | | os.remove(filename) |
| | |
| | | if scaler is not None and 'scaler_state' in checkpoint: |
| | | scaler.load_state_dict(checkpoint['scaler_state']) |
| | | |
| | | self.val_acc_list = checkpoint["acc"] |
| | | self.step_or_epoch = checkpoint["step_or_epoch"] |
| | | self.saved_ckpts = checkpoint["saved_ckpts"] |
| | | self.val_acc_step_or_eoch = checkpoint["val_acc_step_or_eoch"] if "val_acc_step_or_eoch" in checkpoint else {} |
| | | self.val_loss_step_or_eoch = checkpoint["val_loss_step_or_eoch"] if "val_loss_step_or_eoch" in checkpoint else {} |
| | | self.val_loss_step_or_eoch = checkpoint["best_step_or_epoch"] if "best_step_or_epoch" in checkpoint else "" |
| | | model.to(self.device) |
| | | print(f"Checkpoint loaded successfully from '{ckpt}'") |
| | | else: |
| | |
| | | if self.use_ddp or self.use_fsdp: |
| | | iterator_stop.fill_(1) |
| | | dist.all_reduce(iterator_stop, dist.ReduceOp.SUM) |
| | | |
| | | self.val_acc_list.append(self.val_acc_avg) |
| | | |
| | | if kwargs.get("step", None) is None: |
| | | ckpt_name = f'model.pt.ep{epoch}' |
| | | else: |
| | | ckpt_name = f'model.pt.ep{epoch}.{kwargs.get("step")}' |
| | | self.val_acc_step_or_eoch[ckpt_name] = self.val_acc_avg |
| | | self.val_loss_step_or_eoch[ckpt_name] = self.val_loss_avg |
| | | model.train() |
| | | |
| | | if self.use_ddp or self.use_fsdp: |