志浩
2023-04-07 4137f5cf26e7c4b40853959cd2574edfde03aa60
funasr/train/trainer.py
@@ -94,7 +94,7 @@
    wandb_model_log_interval: int
    use_pai: bool
    oss_bucket: Union[oss2.Bucket, None]
    batch_interval: int
class Trainer:
    """Trainer having a optimizer.
@@ -186,7 +186,10 @@
                logging.warning("No keep_nbest_models is given. Change to [1]")
                trainer_options.keep_nbest_models = [1]
            keep_nbest_models = trainer_options.keep_nbest_models
        #assert batch_interval is set and >0
        assert trainer_options.batch_interval > 0
        output_dir = Path(trainer_options.output_dir)
        reporter = Reporter()
        if trainer_options.use_amp:
@@ -205,9 +208,9 @@
        else:
            scaler = None
        if trainer_options.resume and (output_dir / "checkpoint.pth").exists():
        if trainer_options.resume and (output_dir / "checkpoint.pb").exists():
            cls.resume(
                checkpoint=output_dir / "checkpoint.pth",
                checkpoint=output_dir / "checkpoint.pb",
                model=model,
                optimizers=optimizers,
                schedulers=schedulers,
@@ -361,7 +364,7 @@
                        },
                        buffer,
                    )
                    trainer_options.oss_bucket.put_object(os.path.join(trainer_options.output_dir, "checkpoint.pth"), buffer.getvalue())
                    trainer_options.oss_bucket.put_object(os.path.join(trainer_options.output_dir, "checkpoint.pb"), buffer.getvalue())
                else:
                    torch.save(
                        {
@@ -374,7 +377,7 @@
                            ],
                            "scaler": scaler.state_dict() if scaler is not None else None,
                        },
                        output_dir / "checkpoint.pth",
                        output_dir / "checkpoint.pb",
                    )
                # 5. Save and log the model and update the link to the best model
@@ -382,22 +385,22 @@
                    buffer = BytesIO()
                    torch.save(model.state_dict(), buffer)
                    trainer_options.oss_bucket.put_object(os.path.join(trainer_options.output_dir,
                                                                       f"{iepoch}epoch.pth"),buffer.getvalue())
                                                                       f"{iepoch}epoch.pb"),buffer.getvalue())
                else:
                    torch.save(model.state_dict(), output_dir / f"{iepoch}epoch.pth")
                    torch.save(model.state_dict(), output_dir / f"{iepoch}epoch.pb")
                # Creates a sym link latest.pth -> {iepoch}epoch.pth
                # Creates a sym link latest.pb -> {iepoch}epoch.pb
                if trainer_options.use_pai:
                    p = os.path.join(trainer_options.output_dir, "latest.pth")
                    p = os.path.join(trainer_options.output_dir, "latest.pb")
                    if trainer_options.oss_bucket.object_exists(p):
                        trainer_options.oss_bucket.delete_object(p)
                    trainer_options.oss_bucket.copy_object(trainer_options.oss_bucket.bucket_name,
                                           os.path.join(trainer_options.output_dir, f"{iepoch}epoch.pth"), p)
                                           os.path.join(trainer_options.output_dir, f"{iepoch}epoch.pb"), p)
                else:
                    p = output_dir / "latest.pth"
                    p = output_dir / "latest.pb"
                    if p.is_symlink() or p.exists():
                        p.unlink()
                    p.symlink_to(f"{iepoch}epoch.pth")
                    p.symlink_to(f"{iepoch}epoch.pb")
                _improved = []
                for _phase, k, _mode in trainer_options.best_model_criterion:
@@ -407,16 +410,16 @@
                        # Creates sym links if it's the best result
                        if best_epoch == iepoch:
                            if trainer_options.use_pai:
                                p = os.path.join(trainer_options.output_dir, f"{_phase}.{k}.best.pth")
                                p = os.path.join(trainer_options.output_dir, f"{_phase}.{k}.best.pb")
                                if trainer_options.oss_bucket.object_exists(p):
                                    trainer_options.oss_bucket.delete_object(p)
                                trainer_options.oss_bucket.copy_object(trainer_options.oss_bucket.bucket_name,
                                                       os.path.join(trainer_options.output_dir, f"{iepoch}epoch.pth"),p)
                                                       os.path.join(trainer_options.output_dir, f"{iepoch}epoch.pb"),p)
                            else:
                                p = output_dir / f"{_phase}.{k}.best.pth"
                                p = output_dir / f"{_phase}.{k}.best.pb"
                                if p.is_symlink() or p.exists():
                                    p.unlink()
                                p.symlink_to(f"{iepoch}epoch.pth")
                                p.symlink_to(f"{iepoch}epoch.pb")
                            _improved.append(f"{_phase}.{k}")
                if len(_improved) == 0:
                    logging.info("There are no improvements in this epoch")
@@ -438,7 +441,7 @@
                        type="model",
                        metadata={"improved": _improved},
                    )
                    artifact.add_file(str(output_dir / f"{iepoch}epoch.pth"))
                    artifact.add_file(str(output_dir / f"{iepoch}epoch.pb"))
                    aliases = [
                        f"epoch-{iepoch}",
                        "best" if best_epoch == iepoch else "",
@@ -473,12 +476,12 @@
                for e in range(1, iepoch):
                    if trainer_options.use_pai:
                        p = os.path.join(trainer_options.output_dir, f"{e}epoch.pth")
                        p = os.path.join(trainer_options.output_dir, f"{e}epoch.pb")
                        if trainer_options.oss_bucket.object_exists(p) and e not in nbests:
                            trainer_options.oss_bucket.delete_object(p)
                            _removed.append(str(p))
                    else:
                        p = output_dir / f"{e}epoch.pth"
                        p = output_dir / f"{e}epoch.pb"
                        if p.exists() and e not in nbests:
                            p.unlink()
                            _removed.append(str(p))
@@ -560,13 +563,31 @@
        # [For distributed] Because iteration counts are not always equals between
        # processes, send stop-flag to the other processes if iterator is finished
        iterator_stop = torch.tensor(0).to("cuda" if ngpu > 0 else "cpu")
        #get the rank
        rank = distributed_option.dist_rank
        #get the num batch updates
        num_batch_updates = 0
        #ouput dir
        output_dir = Path(options.output_dir)
        #batch interval
        batch_interval = options.batch_interval
        assert batch_interval > 0
        start_time = time.perf_counter()
        for iiter, (_, batch) in enumerate(
            reporter.measure_iter_time(iterator, "iter_time"), 1
        ):
            assert isinstance(batch, dict), type(batch)
            if rank == 0:
                if hasattr(model, "num_updates") or (hasattr(model, "module") and hasattr(model.module, "num_updates")):
                    num_batch_updates = model.get_num_updates() if hasattr(model,"num_updates") else model.module.get_num_updates()
                if (num_batch_updates%batch_interval == 0) and (options.oss_bucket is not None) and options.use_pai:
                    buffer = BytesIO()
                    torch.save(model.state_dict(), buffer)
                    options.oss_bucket.put_object(os.path.join(output_dir, f"{num_batch_updates}batch.pth"), buffer.getvalue())
            if distributed:
                torch.distributed.all_reduce(iterator_stop, ReduceOp.SUM)
                if iterator_stop > 0:
@@ -811,4 +832,4 @@
        else:
            if distributed:
                iterator_stop.fill_(1)
                torch.distributed.all_reduce(iterator_stop, ReduceOp.SUM)
                torch.distributed.all_reduce(iterator_stop, ReduceOp.SUM)