| | |
| | | self.batch_total = 0 |
| | | self.use_fp16 = use_fp16 |
| | | self.save_checkpoint_interval = kwargs.get("save_checkpoint_interval", 5000) |
| | | self.validate_interval = kwargs.get("validate_interval", 5000) |
| | | self.validate_interval = kwargs.get("validate_interval", -1) |
| | | if self.validate_interval < 0: |
| | | self.validate_interval = self.save_checkpoint_interval |
| | | assert ( |
| | | self.save_checkpoint_interval == self.validate_interval |
| | | ), f"save_checkpoint_interval must equal to validate_interval" |
| | | 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", 10) |
| | |
| | | time_beg = time.perf_counter() |
| | | time5 = time_beg |
| | | for batch_idx, batch in enumerate(dataloader_train): |
| | | if self.use_ddp or self.use_fsdp: |
| | | dist.all_reduce(iterator_stop, dist.ReduceOp.SUM) |
| | | if iterator_stop > 0: |
| | | break |
| | | # if self.use_ddp or self.use_fsdp: |
| | | # dist.all_reduce(iterator_stop, dist.ReduceOp.SUM) |
| | | # if iterator_stop > 0: |
| | | # break |
| | | self.batch_total += 1 |
| | | self.step_in_epoch += 1 |
| | | time1 = time.perf_counter() |
| | |
| | | with maybe_autocast(self.use_fp16): |
| | | retval = model(**batch) |
| | | |
| | | if ( |
| | | self.reset_gpu_cache |
| | | and (torch.cuda.max_memory_reserved() / 1024 / 1024 / 1024) > 70 |
| | | ): |
| | | torch.cuda.empty_cache() |
| | | # if ( |
| | | # self.reset_gpu_cache |
| | | # and (torch.cuda.max_memory_reserved() / 1024 / 1024 / 1024) > 70 |
| | | # ): |
| | | # torch.cuda.empty_cache() |
| | | |
| | | loss, stats, weight = retval |
| | | stats = {k: v for k, v in stats.items() if v is not None} |
| | | # if self.use_ddp or self.use_fsdp: |
| | | # # Apply weighted averaging for loss and stats |
| | | # loss = (loss * weight.type(loss.dtype)).sum() |
| | | # # if distributed, this method can also apply all_reduce() |
| | | # # stats, weight = recursive_average(stats, weight, distributed=True) |
| | | # if self.use_ddp or self.use_fsdp: |
| | | # dist.all_reduce(weight, op=dist.ReduceOp.SUM) |
| | | # # Now weight is summation over all workers |
| | | # loss /= weight.sum() # shape:[1] -> shape:[] |
| | | # # Multiply world_size because DistributedDataParallel |
| | | # # automatically normalizes the gradient by world_size. |
| | | # loss *= self.world_size |
| | | loss *= self.world_size |
| | | if self.use_ddp or self.use_fsdp: |
| | | # Apply weighted averaging for loss and stats |
| | | loss = (loss * weight.type(loss.dtype)).sum() |
| | | # if distributed, this method can also apply all_reduce() |
| | | # stats, weight = recursive_average(stats, weight, distributed=True) |
| | | if self.use_ddp or self.use_fsdp: |
| | | dist.all_reduce(weight, op=dist.ReduceOp.SUM) |
| | | # Now weight is summation over all workers |
| | | loss /= weight.sum() # shape:[1] -> shape:[] |
| | | # Multiply world_size because DistributedDataParallel |
| | | # automatically normalizes the gradient by world_size. |
| | | loss *= self.world_size |
| | | # loss *= self.world_size |
| | | # Scale the loss since we're not updating for every mini-batch |
| | | loss = loss / accum_grad |
| | | |
| | |
| | | speed_stats["backward_and_AllReaduce_time"] = f"{time4 - time3:0.3f}" |
| | | |
| | | self.train_loss_avg = ( |
| | | self.train_loss_avg * (self.step_in_epoch - 1) + loss.detach().cpu().item() |
| | | ) / self.step_in_epoch |
| | | self.train_loss_avg * (batch_idx + kwargs.get("start_step", 0)) |
| | | + loss.detach().cpu().item() |
| | | ) / (batch_idx + kwargs.get("start_step", 0) + 1) |
| | | if "acc" in stats: |
| | | self.train_acc_avg = ( |
| | | self.train_acc_avg * (self.step_in_epoch - 1) |
| | | self.train_acc_avg * (batch_idx + kwargs.get("start_step", 0)) |
| | | + stats["acc"].detach().cpu().item() |
| | | ) / self.step_in_epoch |
| | | ) / (batch_idx + kwargs.get("start_step", 0) + 1) |
| | | |
| | | # Perform an optimizer step only after accumulating enough gradients |
| | | if (batch_idx + 1) % accum_grad == 0: |
| | |
| | | scheduler.step() |
| | | # Clear gradients for the next accumulation stage |
| | | optim.zero_grad(set_to_none=True) |
| | | total_time = f"{(time.perf_counter() - time5)/accum_grad:0.3f}" |
| | | time5 = time.perf_counter() |
| | | |
| | | if self.use_ddp or self.use_fsdp: |
| | | train_loss_avg = torch.tensor(self.train_loss_avg, dtype=torch.float32).to( |
| | |
| | | dist.all_reduce(train_acc_avg, op=dist.ReduceOp.SUM) |
| | | self.train_loss_avg = train_loss_avg.detach().cpu().item() / self.world_size |
| | | self.train_acc_avg = train_acc_avg.detach().cpu().item() / self.world_size |
| | | |
| | | total_time = f"{(time.perf_counter() - time5)/accum_grad:0.3f}" |
| | | time5 = time.perf_counter() |
| | | |
| | | speed_stats["optim_time"] = f"{time5 - time4:0.3f}" |
| | | |
| | |
| | | step_in_epoch=self.step_in_epoch, |
| | | batch_num_epoch=batch_num_epoch, |
| | | lr=lr, |
| | | loss=loss.detach().cpu().item(), |
| | | loss=accum_grad * loss.detach().cpu().item(), |
| | | speed_stats=speed_stats, |
| | | stats=stats, |
| | | writer=writer, |
| | |
| | | ) |
| | | |
| | | time_beg = time.perf_counter() |
| | | else: |
| | | if self.use_ddp or self.use_fsdp: |
| | | iterator_stop.fill_(1) |
| | | dist.all_reduce(iterator_stop, dist.ReduceOp.SUM) |
| | | # else: |
| | | # if self.use_ddp or self.use_fsdp: |
| | | # iterator_stop.fill_(1) |
| | | # dist.all_reduce(iterator_stop, dist.ReduceOp.SUM) |
| | | |
| | | if self.use_ddp or self.use_fsdp: |
| | | dist.barrier() |
| | | iterator_stop = torch.tensor(0).to(self.device) |
| | | # iterator_stop = torch.tensor(0).to(self.device) |
| | | |
| | | def validate_epoch( |
| | | self, |
| | |
| | | f"data_slice: {data_split_i}/{data_split_num}, " |
| | | f"step_in_slice: {batch_idx + 1}/{batch_num_epoch}, step_in_epoch: {step_in_epoch}, total step: {self.batch_total}, " |
| | | f"(loss_avg_rank: {loss:.3f}), " |
| | | f"(loss_avg_epoch: {loss_avg_epoch:.3f}), " |
| | | f"(ppl_avg_epoch: {math.exp(loss_avg_epoch):.3e}), " |
| | | f"(acc_avg_epoch: {acc_avg_epoch:.3f}), " |
| | | f"(loss_avg_slice: {loss_avg_epoch:.3f}), " |
| | | f"(ppl_avg_slice: {math.exp(loss_avg_epoch):.3e}), " |
| | | f"(acc_avg_slice: {acc_avg_epoch:.3f}), " |
| | | f"(lr: {lr:.3e}), " |
| | | f"{[(k, round(v.detach().cpu().item(), 3)) for k, v in stats.items()]}, " |
| | | f"{speed_stats}, " |