diff --git a/fastNLP/core/callbacks/load_best_model_callback.py b/fastNLP/core/callbacks/load_best_model_callback.py
index 9b80bb94..4f52720f 100644
--- a/fastNLP/core/callbacks/load_best_model_callback.py
+++ b/fastNLP/core/callbacks/load_best_model_callback.py
@@ -54,18 +54,9 @@ class LoadBestModelCallback(HasMonitorCallback):
         if model_save_fn is not None:
             assert save_folder is not None, "When passing `model_save_fn`, `save_folder` must be provided."
 
-        if save_folder is not None:
+        if save_folder:
             if os.path.exists(save_folder):
-                assert os.path.isdir(save_folder), f"`save_folder` must be a directory."
-            else:
-                os.makedirs(save_folder, exist_ok=True)
-            save_folder = os.path.join(save_folder, os.environ.get(FASTNLP_LAUNCH_TIME))
-            self.real_save_folder = os.path.join(save_folder, 'best_so_far')
-            if int(os.environ.get(FASTNLP_GLOBAL_RANK, 0)) == 0:
-                os.makedirs(self.real_save_folder, exist_ok=True)
-        else:  # 创建出一个 stringio
-            self.real_save_folder = None
-            self.buffer = BytesIO()
+                assert os.path.isdir(save_folder), f"`save_folder={save_folder}` must be a directory."
 
         self.save_folder = save_folder
         self.only_state_dict = only_state_dict
@@ -73,21 +64,37 @@ class LoadBestModelCallback(HasMonitorCallback):
         self.model_load_fn = model_load_fn
         self.delete_after_after = delete_after_train
 
-    def on_after_trainer_initialized(self, trainer, driver):
-        if self.save_folder is not None and driver.is_distributed() and int(os.environ.get(FASTNLP_BACKEND_LAUNCH, 0))==1:
-            # 如果需要保存，但是又是不是 fastNLP 拉起的, 需要同步一下 folder
-            try:
-                self.real_save_folder = driver.broadcast_object(self.real_save_folder, src=0, group=None)
-                logger.debug(f"Synchronize best model save folder: {self.real_save_folder} for LoadBestModelCallback.")
-            except NotImplementedError:
-                raise RuntimeError(f"Currently {driver.__class__.__name__} does not support using `save_folder` to "
-                                   f"save best model when launch using module.")
+    def prepare_save_folder(self, trainer):
+        if not hasattr(self, 'real_save_folder'):
+            if self.save_folder is not None:
+                if not os.path.exists(self.save_folder):
+                    os.makedirs(self.save_folder, exist_ok=True)
+                self.save_folder = os.path.join(self.save_folder, os.environ.get(FASTNLP_LAUNCH_TIME))
+                self.real_save_folder = os.path.join(self.save_folder, 'best_so_far')
+                if int(os.environ.get(FASTNLP_GLOBAL_RANK, 0)) == 0:
+                    os.makedirs(self.real_save_folder, exist_ok=True)
+                if self.save_folder is not None and trainer.driver.is_distributed() and int(
+                    os.environ.get(FASTNLP_BACKEND_LAUNCH, 0)) == 1:
+                    trainer.driver.barrier()
+                    try:
+                        self.real_save_folder = trainer.driver.broadcast_object(self.real_save_folder, src=0, group=None)
+                        logger.debug(
+                            f"Synchronize best model save folder: {self.real_save_folder} for LoadBestModelCallback.")
+                    except NotImplementedError:
+                        raise RuntimeError(
+                            f"Currently {trainer.driver.__class__.__name__} does not support using `save_folder` to "
+                            f"save best model when launch using module.")
+            else:  # 创建出一个 stringio
+                self.real_save_folder = None
+                self.buffer = BytesIO()
 
+    def on_after_trainer_initialized(self, trainer, driver):
         super().on_after_trainer_initialized(trainer, driver)
         self.encounter_exception = False
 
     def on_evaluate_end(self, trainer, results):
         if self.is_better_results(results, keep_if_better=True):
+            self.prepare_save_folder(trainer)
             if self.real_save_folder:
                 trainer.save_model(folder=self.real_save_folder, only_state_dict=self.only_state_dict,
                                    model_save_fn=self.model_save_fn)
@@ -103,8 +110,7 @@ class LoadBestModelCallback(HasMonitorCallback):
                 trainer.load_model(folder=self.real_save_folder, only_state_dict=self.only_state_dict,
                                    model_load_fn=self.model_load_fn)
             else:
-                logger.info(
-                    f"Loading best model from buffer with {self.monitor_name}: {self.monitor_value}...")
+                logger.info(f"Loading best model from buffer with {self.monitor_name}: {self.monitor_value}...")
                 self.buffer.seek(0)
                 trainer.load_model(folder=self.buffer, only_state_dict=self.only_state_dict)
             if self.delete_after_after:
@@ -119,7 +125,7 @@ class LoadBestModelCallback(HasMonitorCallback):
             self.encounter_exception = True
 
     def _delete_folder(self):
-        if self.real_save_folder:
+        if getattr(self, 'real_save_folder', None):
             logger.info(f"Deleting {self.real_save_folder}...")
             shutil.rmtree(self.real_save_folder, ignore_errors=True)
             try:
diff --git a/fastNLP/core/callbacks/torch_callbacks/torch_grad_clip_callback.py b/fastNLP/core/callbacks/torch_callbacks/torch_grad_clip_callback.py
index 40a03b89..c986e4e4 100644
--- a/fastNLP/core/callbacks/torch_callbacks/torch_grad_clip_callback.py
+++ b/fastNLP/core/callbacks/torch_callbacks/torch_grad_clip_callback.py
@@ -3,7 +3,11 @@ __all__ = [
 ]
 from typing import Union, List
 from ..callback import Callback
-
+from ...drivers.torch_driver.fairscale import FairScaleDriver
+from ...drivers.torch_driver import TorchDriver
+from fastNLP.envs.imports import _NEED_IMPORT_FAIRSCALE
+if _NEED_IMPORT_FAIRSCALE:
+    from fairscale.nn import FullyShardedDataParallel
 
 class TorchGradClipCallback(Callback):
     r"""
@@ -35,15 +39,20 @@ class TorchGradClipCallback(Callback):
         else:
             self.parameters = None
         self.clip_value = clip_value
+        self.clip_type = clip_type
 
     def on_after_trainer_initialized(self, trainer, driver):
-        assert 'torch' in driver.__class__.__name__.lower(), f"Callback:{self.__class__.__name__} only supports torch " \
+        assert isinstance(driver, TorchDriver), f"Callback:{self.__class__.__name__} only supports torch " \
                                                              f"related drivers for now."
         parameters = []
         for optimizer in trainer.driver.optimizers:
             for param_group in optimizer.param_groups:
                 parameters.extend(param_group['params'])
         self.parameters = parameters
+        if isinstance(trainer.driver, FairScaleDriver):
+            if isinstance(trainer.driver.model, FullyShardedDataParallel) and self.clip_type == 'norm':
+                self.clip_fun = trainer.driver.model.clip_grad_norm_
+
         assert len(self.parameters), "There is no parameters need to be clipped."
 
     def on_before_optimizers_step(self, trainer, optimizers):
diff --git a/fastNLP/core/controllers/loops/train_batch_loop.py b/fastNLP/core/controllers/loops/train_batch_loop.py
index 48485226..645f4224 100644
--- a/fastNLP/core/controllers/loops/train_batch_loop.py
+++ b/fastNLP/core/controllers/loops/train_batch_loop.py
@@ -58,7 +58,7 @@ class TrainBatchLoop(Loop):
                 trainer.on_train_batch_end()
             except BaseException as e:
                 if indices is not None and not isinstance(e, (EarlyStopException, KeyboardInterrupt)):
-                    logger.error(f"Exception happens when running on samples: {indices}")
+                    logger.error(f"Exception happens when training on samples: {indices}")
                 raise e
             trainer.step_evaluate()
         trainer.batch_idx_in_epoch = 0
diff --git a/fastNLP/core/controllers/trainer.py b/fastNLP/core/controllers/trainer.py
index 86097995..79cc36a0 100644
--- a/fastNLP/core/controllers/trainer.py
+++ b/fastNLP/core/controllers/trainer.py
@@ -267,7 +267,8 @@ class Trainer(TrainerEventTrigger):
             * ddp_kwargs -- 用于在使用 ``TorchDDPDriver`` 时指定 ``DistributedDataParallel`` 初始化时的参数；例如传入
              {'find_unused_parameters': True} 来解决有参数不参与前向运算导致的报错等；
             * set_grad_to_none -- 是否在训练过程中在每一次 optimizer 更新后将 grad 置为 None；
-            * torch_non_blocking -- 表示用于 pytorch 的 tensor 的 to 方法的参数 non_blocking；
+            * non_blocking -- 表示用于 pytorch 的 tensor 的 to 方法的参数 non_blocking；
+            * gradscaler_kwargs -- 用于 fp16=True 时，提供给 ``torch.amp.cuda.GradScaler`` 的参数。
         * *paddle_kwargs* -- 用于在指定 ``driver`` 为 'paddle' 时设定具体 driver 实例的一些参数：
 
             * fleet_kwargs -- 用于在使用 ``PaddleFleetDriver`` 时指定 ``DataParallel`` 和 ``fleet`` 初始化时的参数，包括：
@@ -494,9 +495,6 @@ class Trainer(TrainerEventTrigger):
         self.dataloader = self.driver.set_dist_repro_dataloader(dataloader=self.train_dataloader, dist=_dist_sampler,
                                                                 reproducible=self.callback_manager._need_reproducible_sampler)
 
-        _torch_kwargs = kwargs.get("torch_kwargs", {})
-        self.set_grad_to_none = _torch_kwargs.get("set_grad_to_none", True)
-
         self.evaluate_batch_step_fn = evaluate_batch_step_fn
         self.kwargs = kwargs
 
@@ -596,7 +594,7 @@ class Trainer(TrainerEventTrigger):
         try:
             self.on_train_begin()
             self.driver.barrier()
-            self.driver.zero_grad(self.set_grad_to_none)
+            self.driver.zero_grad()
             while self.cur_epoch_idx < self.n_epochs:
                 # 这个是防止在 Trainer.load_checkpoint 之后还没结束当前 epoch 又继续 save
                 self.start_batch_idx_in_epoch = self.trainer_state.batch_idx_in_epoch
@@ -1236,7 +1234,7 @@ class Trainer(TrainerEventTrigger):
         """
         if (self.global_forward_batches + 1) % self.accumulation_steps == 0:
             self.on_before_zero_grad(self.optimizers)
-            self.driver.zero_grad(self.set_grad_to_none)
+            self.driver.zero_grad()
             self.on_after_zero_grad(self.optimizers)
 
     def step(self):
diff --git a/fastNLP/core/drivers/driver.py b/fastNLP/core/drivers/driver.py
index 6b32b856..1b6f2931 100644
--- a/fastNLP/core/drivers/driver.py
+++ b/fastNLP/core/drivers/driver.py
@@ -198,12 +198,11 @@ class Driver(ABC):
         raise NotImplementedError("Each specific driver should implemented its own `step` function.")
 
     @abstractmethod
-    def zero_grad(self, set_to_none: bool = False):
+    def zero_grad(self):
         r"""
         实现深度学习中的梯度的置零操作，应当直接通过优化器 optimizers 来将梯度置零；
         注意梯度累积不需要在这里实现，trainer 已经在内部实现了梯度累积；
 
-        :param set_to_none: 用来判断是否需要将梯度直接置为 None；
         """
         raise NotImplementedError("Each specific driver should implemented its own `zero_grad` function.")
 
diff --git a/fastNLP/core/drivers/jittor_driver/single_device.py b/fastNLP/core/drivers/jittor_driver/single_device.py
index be704e69..7529aec9 100644
--- a/fastNLP/core/drivers/jittor_driver/single_device.py
+++ b/fastNLP/core/drivers/jittor_driver/single_device.py
@@ -46,7 +46,7 @@ class JittorSingleDriver(JittorDriver):
         for optimizer in self.optimizers:
             optimizer.backward(loss)
 
-    def zero_grad(self, set_to_none=False):
+    def zero_grad(self):
         for optimizer in self.optimizers:
             optimizer.zero_grad()
 
diff --git a/fastNLP/core/drivers/paddle_driver/fleet.py b/fastNLP/core/drivers/paddle_driver/fleet.py
index f438599b..342ae8f2 100644
--- a/fastNLP/core/drivers/paddle_driver/fleet.py
+++ b/fastNLP/core/drivers/paddle_driver/fleet.py
@@ -199,7 +199,7 @@ class PaddleFleetDriver(PaddleDriver):
         paddle_kwargs = kwargs.get("paddle_kwargs", {})
         
         self._fleet_kwargs = paddle_kwargs.get("fleet_kwargs", {})
-        check_user_specific_params(self._fleet_kwargs, DataParallel.__init__)
+        check_user_specific_params(self._fleet_kwargs, DataParallel.__init__, DataParallel.__name__)
         # fleet.init 中对于分布式策略的设置，详情可以参考 PaddlePaddle 的官方文档
         self.strategy = self._fleet_kwargs.get("strategy", fleet.DistributedStrategy())
         self.is_collective = self._fleet_kwargs.pop("is_collective", True)
diff --git a/fastNLP/core/drivers/paddle_driver/paddle_driver.py b/fastNLP/core/drivers/paddle_driver/paddle_driver.py
index 39fed874..9e5c82c3 100644
--- a/fastNLP/core/drivers/paddle_driver/paddle_driver.py
+++ b/fastNLP/core/drivers/paddle_driver/paddle_driver.py
@@ -83,12 +83,11 @@ class PaddleDriver(Driver):
         # 用来设置是否关闭 auto_param_call 中的参数匹配问题；
         self.wo_auto_param_call = kwargs.get("model_wo_auto_param_call", False)
 
-    def zero_grad(self, set_to_none: bool = False):
+    def zero_grad(self):
         r"""
         实现深度学习中的梯度的置零操作，应当直接通过优化器 ``optimizers`` 来将梯度置零；
         注意梯度累积不需要在这里实现，:class:`~fastNLP.core.Trainer` 已经在内部实现了梯度累积；
 
-        :param set_to_none: 用来判断是否需要将梯度直接置为 ``None``；在 **PaddlePaddle** 中这个参数无效。
         """
         for optimizer in self.optimizers:
             optimizer.clear_grad()
diff --git a/fastNLP/core/drivers/torch_driver/ddp.py b/fastNLP/core/drivers/torch_driver/ddp.py
index 9dbea342..364c3a0b 100644
--- a/fastNLP/core/drivers/torch_driver/ddp.py
+++ b/fastNLP/core/drivers/torch_driver/ddp.py
@@ -304,11 +304,11 @@ class TorchDDPDriver(TorchDriver):
         self.global_rank = 0
 
         self._ddp_kwargs = self._torch_kwargs.get("ddp_kwargs", {})
-        check_user_specific_params(self._ddp_kwargs, DistributedDataParallel.__init__)
+        check_user_specific_params(self._ddp_kwargs, DistributedDataParallel.__init__, DistributedDataParallel.__name__)
         if len(self.model._buffers) != 0 and self._ddp_kwargs.get("broadcast_buffers", None) is None:
             logger.info("Notice your model has buffers and you are using `TorchDDPDriver`, but you do not set "
                         "'broadcast_buffers' in your trainer. Cause in most situations, this parameter can be set"
-                        " to 'False' to avoid redundant data translation between different processes.")
+                        " to 'False' to avoid redundant data communication between different processes.")
 
         self.output_from_new_proc = kwargs.get("output_from_new_proc", "only_error")
         assert isinstance(self.output_from_new_proc, str), "Parameter `output_from_new_proc` can only be `str` type."
@@ -471,7 +471,7 @@ class TorchDDPDriver(TorchDriver):
         self._global_rank = rank
 
     @property
-    def local_rank(self) -> int:
+    def local_rank(self) -> int:  # 这个不会受到 all_rank_call_context 的影响
         return int(os.environ.get("LOCAL_RANK", 0))
 
     @property
diff --git a/fastNLP/core/drivers/torch_driver/fairscale.py b/fastNLP/core/drivers/torch_driver/fairscale.py
new file mode 100644
index 00000000..ece78f5e
--- /dev/null
+++ b/fastNLP/core/drivers/torch_driver/fairscale.py
@@ -0,0 +1,307 @@
+__all__ = [
+    'FairScaleDriver'
+]
+from typing import List, Sequence, Union, Dict, Mapping
+from pathlib import Path
+import os
+import functools
+
+from fastNLP.envs.imports import _NEED_IMPORT_FAIRSCALE
+if _NEED_IMPORT_FAIRSCALE:
+    import torch
+    import torch.distributed as dist
+    from fairscale.optim import OSS
+    from fairscale.nn import ShardedDataParallel
+    from fairscale.nn import FullyShardedDataParallel
+    from fairscale.optim.grad_scaler import ShardedGradScaler
+    from torch.nn.parallel import DistributedDataParallel
+    from fairscale.nn.wrap import auto_wrap, enable_wrap, default_auto_wrap_policy
+
+from ...log import logger
+from .utils import reset_seed, _DDPWrappingModel
+
+from .ddp import TorchDDPDriver
+from .torch_driver import TorchDriver
+from .utils import _build_fp16_env
+from ....envs.distributed import all_rank_call_context
+from fastNLP.envs import FASTNLP_DISTRIBUTED_CHECK
+from .utils import optimizer_state_to_device
+
+
+class FairScaleDriver(TorchDDPDriver):
+    def __init__(
+            self,
+            model,
+            parallel_device: Union[List["torch.device"], "torch.device"],
+            is_pull_by_torch_run = False,
+            fp16: bool = False,
+            **kwargs
+    ):
+        assert _NEED_IMPORT_FAIRSCALE, "fairscale is not imported."
+        assert not dist.is_initialized(), "FairScaleDriver does not support initialize distributed by user."
+        self._fairscale_kwargs = kwargs.get('fairscale_kwargs', {})
+        self.fs_type = self._fairscale_kwargs.get('fs_type', 'sdp')  # ddp, sdp, fsdp
+        if self.fs_type == 'fsdp':
+            self._fairscale_kwargs['set_grad_to_none'] = self._fairscale_kwargs.get('set_grad_to_none', True)
+        # 将最顶上的进行初始化
+        kwargs.pop('torch_kwargs', None)
+        TorchDriver.__init__(self, model=model, fp16=False, torch_kwargs=self._fairscale_kwargs, **kwargs)
+        self.is_pull_by_torch_run = is_pull_by_torch_run
+        assert self.fs_type in ['ddp', 'sdp', 'fsdp']
+        self._oss_kwargs = self._fairscale_kwargs.get('oss_kwargs', {})  # 仅在 ddp 和 sdp 下有使用到
+        self._sdp_kwargs = self._fairscale_kwargs.get('sdp_kwargs', {})
+        self._fdsp_kwargs = self._fairscale_kwargs.get('fsdp_kwargs', {})
+        self._ddp_kwargs = self._fairscale_kwargs.get('ddp_kwargs', {})
+
+        if self.fs_type == 'ddp' or fp16 is False:
+            self.auto_cast, _grad_scaler = _build_fp16_env(dummy=not fp16)
+            self.grad_scaler = _grad_scaler(**self._fairscale_kwargs.get('gradscaler_kwargs', {}))
+        else:
+            self.auto_cast, self.grad_scaler = torch.cuda.amp.autocast, \
+                                                   ShardedGradScaler(**self._fairscale_kwargs.get('gradscaler_kwargs', {}))
+
+        self.parallel_device = parallel_device
+        if is_pull_by_torch_run:
+            self.model_device = parallel_device
+        else:
+            self.model_device = parallel_device[self.local_rank]
+
+        self.outside_ddp = False  # 不允许在外部初始化
+        self._data_device = kwargs.get("data_device", None)
+        if isinstance(self._data_device, int):
+            if self._data_device < 0:
+                raise ValueError("Parameter `data_device` can not be smaller than 0.")
+            _could_use_device_num = torch.cuda.device_count()
+            if self._data_device >= _could_use_device_num:
+                raise ValueError("The gpu device that parameter `device` specifies is not existed.")
+            self._data_device = torch.device(f"cuda:{self._data_device}")
+        elif isinstance(self._data_device, str):
+            self._data_device = torch.device(self._data_device)
+        elif self._data_device is not None and not isinstance(self._data_device, torch.device):
+            raise ValueError("Parameter `device` is wrong type, please check our documentation for the right use.")
+
+        self._master_port = None
+        # world_size 表示的就是全局的显卡的数量；
+        self.world_size = None  # int(os.environ.get("WORLD_SIZE"))  len(self.parallel_device)
+        self.global_rank = 0
+
+        if self.fs_type == 'ddp':
+            if len(self.model._buffers) != 0 and self._ddp_kwargs.get("broadcast_buffers", None) is None:
+                logger.info("Notice your model has buffers and you are using `FairScaleDriver`, but you do not set "
+                            "'broadcast_buffers' in your trainer. Cause in most situations, this parameter can be set"
+                            " to 'False' to avoid redundant data communication between different processes.")
+
+        self.output_from_new_proc = kwargs.get("output_from_new_proc", "only_error")
+        assert isinstance(self.output_from_new_proc, str), "Parameter `output_from_new_proc` can only be `str` type."
+        if self.output_from_new_proc not in {"all", "ignore", "only_error"}:
+            os.makedirs(self.output_from_new_proc, exist_ok=True)
+            self.output_from_new_proc = os.path.abspath(self.output_from_new_proc)
+
+        self._has_setup = False  # 设置这一参数是因为 evaluator 中也会进行 setup 操作，但是显然是不需要的也不应该的；
+        self._has_ddpwrapped = False  # 判断传入的模型是否经过 _has_ddpwrapped 包裹；
+
+    def setup(self):
+        r"""
+        准备分布式环境，该函数主要做以下两件事情：
+
+            1. 开启多进程，每个 gpu 设备对应单独的一个进程；
+            2. 每个进程将模型迁移到自己对应的 ``gpu`` 设备上；然后使用 ``DistributedDataParallel`` 包裹模型；
+        """
+        if self._has_setup:
+            return
+        self._has_setup = True
+        if self.is_pull_by_torch_run:
+            # dist.get_world_size() 只能在 dist.init_process_group 初始化之后进行调用；
+            self.world_size = int(os.environ.get("WORLD_SIZE"))
+            self.global_rank = int(os.environ.get("RANK"))
+            reset_seed()
+            logger.info(f"World size: {self.world_size}, Global rank: {self.global_rank}")
+
+            if not dist.is_initialized():
+                dist.init_process_group(
+                    backend="nccl", rank=self.global_rank, world_size=self.world_size
+                )
+
+            os.environ["fastnlp_torch_launch_not_ddp"] = "yes"
+        else:
+            if not dist.is_initialized():
+                # 这里主要的问题在于要区分 rank0 和其它 rank 的情况；
+                self.world_size = len(self.parallel_device)
+                self.open_subprocess()
+                self.global_rank = self.local_rank  # rank 一定是通过环境变量去获取的；
+                reset_seed()
+                dist.init_process_group(
+                    backend="nccl", rank=self.global_rank, world_size=self.world_size
+                )
+            # 用户在这个 trainer 前面又初始化了一个 trainer，并且使用的是 TorchDDPDriver；
+            else:
+                # 如果 `dist.is_initialized() == True`，那么说明 TorchDDPDriver 在之前已经初始化并且已经 setup 过一次，那么我们需要保证现在
+                #  使用的（即之后的）TorchDDPDriver 的设置和第一个 TorchDDPDriver 是完全一样的；
+                pre_num_processes = int(os.environ[FASTNLP_DISTRIBUTED_CHECK])
+                if pre_num_processes != len(self.parallel_device):
+                    raise RuntimeError(
+                        "Notice you are using `TorchDDPDriver` after one instantiated `TorchDDPDriver`, it is not"
+                        "allowed that your second `TorchDDPDriver` has a new setting of parameters "
+                        "`num_nodes` and `num_processes`.")
+                self.world_size = dist.get_world_size()
+                self.global_rank = dist.get_rank()
+
+        torch.cuda.set_device(self.model_device)
+        if self.fs_type != 'fsdp':
+            self.model.to(self.model_device)
+        self.configure_ddp()
+
+        self.barrier()
+        # 初始化 self._pids，从而使得每一个进程都能接受到 rank0 的 send 操作；
+        self._pids = [torch.tensor(0, dtype=torch.int).to(self.data_device) for _ in range(dist.get_world_size())]
+        dist.all_gather(self._pids, torch.tensor(os.getpid(), dtype=torch.int).to(self.data_device))
+        local_world_size = int(os.environ.get("LOCAL_WORLD_SIZE")) if "LOCAL_WORLD_SIZE" in os.environ else None
+        if local_world_size is None:
+            local_world_size = torch.tensor(int(os.environ.get("LOCAL_RANK")), dtype=torch.int).to(self.data_device)
+            dist.all_reduce(local_world_size, op=dist.ReduceOp.MAX)
+            local_world_size = local_world_size.tolist() + 1
+
+        node_rank = self.global_rank // local_world_size
+        self._pids = self._pids[node_rank * local_world_size: (node_rank + 1) * local_world_size]
+        self._pids = self.tensor_to_numeric(self._pids)
+
+    def configure_ddp(self):
+        model = _DDPWrappingModel(self.model)
+        if self.fs_type == 'ddp':
+            self.model = DistributedDataParallel(
+                # 注意这里的 self.model_device 是 `torch.device` type，因此 self.model_device.index；
+                model, device_ids=[self.model_device.index],
+                **self._ddp_kwargs
+            )
+        elif self.fs_type == 'sdp':
+            sdp_kwargs = self._sdp_kwargs
+            sdp_kwargs = {**sdp_kwargs, 'module': model}
+            sdp_kwargs['reduce_fp16'] = sdp_kwargs.get('reduce_fp16', self.fp16)
+            oss_lst = []
+            for optimizer in self.optimizers:
+                oss = OSS(optimizer.param_groups, optim=type(optimizer), **optimizer.defaults)
+                oss_lst.append(oss)
+            sdp_kwargs['sharded_optimizer'] = oss_lst
+            sdp_kwargs['warn_on_trainable_params_changed'] = sdp_kwargs.get('warn_on_trainable_params_changed', False)
+            self.model = ShardedDataParallel(**sdp_kwargs)
+            self.optimizers = oss_lst
+        else:
+            assert len(self.optimizers) == 1, "When fs_type='fsdp', only one optimizer is allowed."
+            optimizer = self.optimizers[0]
+            assert len(optimizer.param_groups) == 1, "Cannot assign parameter specific optimizer parameter for 'fsdp'."
+            fsdp_kwargs = self._fdsp_kwargs
+            fsdp_kwargs['mixed_precision'] = self.fp16
+            fsdp_kwargs['state_dict_on_rank_0_only'] = fsdp_kwargs.get('state_dict_on_rank_0_only', True)
+            fsdp_kwargs['state_dict_device'] = fsdp_kwargs.get('state_dict_device', torch.device('cpu'))
+            fsdp_kwargs['compute_device'] = fsdp_kwargs.get('compute_device', self.model_device)
+            optimizer = self.optimizers[0]
+            # wrap_policy = functools.partial(default_auto_wrap_policy, min_num_params=1e6)
+            # with enable_wrap(wrapper_cls=FullyShardedDataParallel, auto_wrap_policy=wrap_policy,
+            #                  **fsdp_kwargs):
+            #     model = auto_wrap(model)
+            fsdp_kwargs = {**fsdp_kwargs, 'module': model}
+            self.model = None  # 释放掉
+            self.model = FullyShardedDataParallel(**fsdp_kwargs).to(self.model_device)
+            self.optimizers = type(optimizer)(self.model.parameters(), **optimizer.defaults)
+
+        self._has_ddpwrapped = True
+
+    def save_model(self, filepath: Union[str, Path], only_state_dict: bool = True, **kwargs):
+        """
+        保存当前 driver 的模型到 folder 下。
+
+        :param filepath: 保存到哪个文件夹；
+        :param only_state_dict: 是否只保存权重；
+        :return:
+        """
+        if self.fs_type in ('ddp', 'sdp'):
+            model = self.model.module.model
+
+        if only_state_dict:
+            if self.fs_type != 'fsdp':
+                if self.local_rank == 0:
+                    states = {name: param.cpu().detach().clone() for name, param in model.state_dict().items()}
+            else:
+                # 所有 rank 都需要调用
+                states = self.model.state_dict()
+                if self.local_rank == 0:
+                    states = {key[len('model.'):]:value for key, value in states.items()}  # 这里需要去掉那个 _wrap 的 key
+            if self.local_rank == 0:  #
+                torch.save(states, filepath)
+        elif self.fs_type == 'fsdp':
+            raise RuntimeError("When fs_type='fsdp', only `only_state_dict=True` is allowed.")
+        else:
+            if self.local_rank == 0:
+                torch.save(model, filepath)
+
+    def load_model(self, filepath: str, only_state_dict: bool = True, **kwargs):
+        """
+        从 folder 中加载权重并赋值到当前 driver 的模型上。
+
+        :param filepath: 加载权重或模型的路径
+        :param load_state_dict: 保存的内容是否只是权重。
+        :param kwargs:
+        :return:
+        """
+        states = torch.load(filepath, map_location='cpu')
+        if isinstance(states, dict) and only_state_dict is False:
+            logger.rank_zero_warning(f"It seems like that {filepath} only contains state, you may need to use "
+                                     f"`only_state_dict=True`")
+        elif not isinstance(states, dict) and only_state_dict is True:
+            logger.rank_zero_warning(f"It seems like that {filepath} is not state, you may need to use "
+                                     f"`only_state_dict=False`")
+        if not isinstance(states, Mapping):
+            states = states.state_dict()
+
+        if self.fs_type in ('ddp', 'sdp'):
+            model = self.model.module.model
+        else:
+            model = self.model
+            states = {f'model.{k}':v for k, v in states.items()}
+
+        model.load_state_dict(states)
+
+    def save_checkpoint(self, folder: Path, states: Dict, dataloader, only_state_dict: bool = True, should_save_model: bool = True, **kwargs):
+        if self.fs_type == 'fsdp':
+            if should_save_model is False:
+                logger.warning("When save model using fs_type='fsdp', please make sure use "
+                               "`with trainer.driver.model.summon_full_params():` context to gather all parameters.")
+            with all_rank_call_context():
+                super().save_checkpoint(folder=folder, states=states, dataloader=dataloader, only_state_dict=only_state_dict,
+                                        should_save_model=should_save_model, **kwargs)
+        else:
+            super().save_checkpoint(folder=folder, states=states, dataloader=dataloader,
+                                    only_state_dict=only_state_dict, should_save_model=should_save_model, **kwargs)
+
+    def get_optimizer_state(self):
+        optimizers_state_dict = {}
+        for i in range(len(self.optimizers)):
+            optimizer: torch.optim.Optimizer = self.optimizers[i]
+            if self.fs_type == 'fsdp':
+                optimizer_state = self.model.gather_full_optim_state_dict(optimizer)
+            elif self.fs_type == 'sdp':
+                optimizer.consolidate_state_dict(recipient_rank=0)
+            else:
+                optimizer_state = optimizer.state_dict()
+            if self.local_rank == 0:
+                optimizer_state["state"] = optimizer_state_to_device(optimizer_state["state"], torch.device("cpu"))
+                optimizers_state_dict[f"optimizer{i}"] = optimizer_state  # 注意这里没有使用 deepcopy，测试是不需要的；
+        return optimizers_state_dict
+
+    def load_optimizer_state(self, states):
+        assert len(states) == len(self.optimizers), f"The number of optimizers is:{len(self.optimizers)}, while in " \
+                                                    f"checkpoint it is:{len(states)}"
+        for i in range(len(self.optimizers)):
+            optimizer: torch.optim.Optimizer = self.optimizers[i]
+            state = states[f'optimizer{i}']
+            if self.fs_type == 'fsdp':
+                state = self.model.get_shard_from_optim_state_dict(state)
+            optimizer.load_state_dict(state)
+
+        logger.debug("Load optimizer state dict.")
+
+    def unwrap_model(self):
+        r"""
+        :return: 返回原本的模型，例如没有被 ``DataParallel`` 包裹；
+        """
+        return self.model.module.model
diff --git a/fastNLP/core/drivers/torch_driver/fairscale_sharded.py b/fastNLP/core/drivers/torch_driver/fairscale_sharded.py
deleted file mode 100644
index 66826daf..00000000
--- a/fastNLP/core/drivers/torch_driver/fairscale_sharded.py
+++ /dev/null
@@ -1,63 +0,0 @@
-from typing import List
-from fastNLP.envs.imports import _NEED_IMPORT_FAIRSCALE
-if _NEED_IMPORT_FAIRSCALE:
-    import torch
-    from fairscale.nn.data_parallel.sharded_ddp import ShardedDataParallel
-    from fairscale.optim import OSS
-
-__all__ = [
-    'ShardedDriver'
-]
-
-from .ddp import TorchDDPDriver
-
-
-# todo 注意 fairscale 现在几乎所有的功能都没有实现；
-# TODO：预跑前后对模型和 optimizers 的支持；
-# TODO：fairscale 的 fp16 额外的处理；
-class ShardedDriver(TorchDDPDriver):
-    _REDUCE_BUFFER_SIZE_DEFAULT: int = 2 ** 23  # 8M
-
-    def __init__(
-            self,
-            model,
-            parallel_device: List["torch.device"],
-            num_nodes: int = 1,
-            fp16: bool = False,
-            **kwargs
-    ):
-        super(ShardedDriver, self).__init__(
-            model=model,
-            parallel_device=parallel_device,
-            num_nodes=num_nodes,
-            fp16=fp16,
-            **kwargs
-        )
-
-    def configure_ddp(self):
-        if "reduce_buffer_size" not in self._ddp_kwargs:
-            # For multi-node training, enabling bucketing will improve performance.
-            self._ddp_kwargs["reduce_buffer_size"] = self._REDUCE_BUFFER_SIZE_DEFAULT if self.num_nodes > 1 else 0
-
-        self.optimizers = self._wrap_optimizers(self.optimizers)
-        self.model = ShardedDataParallel(self.model, sharded_optimizer=self.optimizers, **self._ddp_kwargs)
-
-
-    def _wrap_optimizers(self, optimizers) -> List["OSS"]:
-        # TODO：之后得去研究一下 pytorch lightning 为什么这样写，我们是不是也需要这样写；
-        # if self.model is not None and self.model.trainer.state.fn != TrainerFn.FITTING:
-        #     return optimizers
-
-        return self._reinit_optimizers_with_oss(optimizers)
-
-    def _reinit_optimizers_with_oss(self, optimizers) -> List["OSS"]:
-        for x, optimizer in enumerate(optimizers):
-            if not isinstance(optimizer, OSS):
-                optim_class = type(optimizer)
-                zero_optimizer = OSS(params=optimizer.param_groups, optim=optim_class, **optimizer.defaults)
-
-                # TODO：具体细节见 pytorch lightning 的这一函数，主要的点在于加入 fp16 相关的一些东西；
-                optimizers[x] = zero_optimizer
-                del optimizer
-        return optimizers
-
diff --git a/fastNLP/core/drivers/torch_driver/initialize_torch_driver.py b/fastNLP/core/drivers/torch_driver/initialize_torch_driver.py
index f8fe63d8..0deac4dc 100644
--- a/fastNLP/core/drivers/torch_driver/initialize_torch_driver.py
+++ b/fastNLP/core/drivers/torch_driver/initialize_torch_driver.py
@@ -7,11 +7,14 @@ if _NEED_IMPORT_TORCH:
 from .torch_driver import TorchDriver
 from .single_device import TorchSingleDriver
 from .ddp import TorchDDPDriver
+from .fairscale import FairScaleDriver
 from fastNLP.core.log import logger
 from fastNLP.envs import FASTNLP_BACKEND_LAUNCH
+from pkg_resources import parse_version
 
 __all__ = []
 
+
 def initialize_torch_driver(driver: str, device: Optional[Union[str, "torch.device", int, List[int]]],
                             model: "torch.nn.Module", **kwargs) -> TorchDriver:
     r"""
@@ -23,13 +26,20 @@ def initialize_torch_driver(driver: str, device: Optional[Union[str, "torch.devi
 
     :return: 返回一个 :class:`~fastNLP.core.TorchSingleDriver` 或 :class:`~fastNLP.core.TorchDDPDriver` 实例；
     """
+    if parse_version(torch.__version__) < parse_version('1.6'):
+        raise RuntimeError(f"Pytorch(current version:{torch.__version__}) need to be older than 1.6.")
     # world_size 和 rank
     if FASTNLP_BACKEND_LAUNCH in os.environ:
         if device is not None:
             logger.rank_zero_warning("Parameter `device` would be ignored when you are using `torch.distributed.run` to pull "
                            "up your script. And we will directly get the local device via "
                            "`os.environ['LOCAL_RANK']`.", once=True)
-        return TorchDDPDriver(model, torch.device(f"cuda:{os.environ['LOCAL_RANK']}"), True, **kwargs)
+        if driver == 'fairscale':
+            return FairScaleDriver(model, torch.device(f"cuda:{os.environ['LOCAL_RANK']}"),
+                                   is_pull_by_torch_run=True, **kwargs)
+        else:
+            return TorchDDPDriver(model, torch.device(f"cuda:{os.environ['LOCAL_RANK']}"),
+                                  is_pull_by_torch_run=True, **kwargs)
 
     if driver not in {"torch", "fairscale"}:
         raise ValueError("Parameter `driver` can only be one of these values: ['torch', 'fairscale'].")
@@ -67,13 +77,10 @@ def initialize_torch_driver(driver: str, device: Optional[Union[str, "torch.devi
         else:
             return TorchDDPDriver(model, device, **kwargs)
     elif driver == "fairscale":
-        raise NotImplementedError("`fairscale` is not support right now.")
-        # if not isinstance(device, List):
-        #     if device.type == 'cpu':
-        #         raise ValueError("You are using `fairscale` driver, but your chosen `device` is 'cpu'.")
-        #     log.info("Notice you are using `fairscale` driver, but your chosen `device` is only one gpu, we will"
-        #                 "still use `fairscale` for you, but if you mean using `TorchSingleDriver`, you should "
-        #                 "choose `torch` driver.")
-        #     return ShardedDriver(model, [device], **kwargs)
-        # else:
-        #     return ShardedDriver(model, device, **kwargs)
\ No newline at end of file
+        if not isinstance(device, List):
+            if device.type == 'cpu':
+                raise ValueError("You are using `fairscale` driver, but your chosen `device` is 'cpu'.")
+            logger.warning_once("Notice you are using `fairscale`, but the `device` is only one gpu.")
+            return FairScaleDriver(model, [device], **kwargs)
+        else:
+            return FairScaleDriver(model, device, **kwargs)
\ No newline at end of file
diff --git a/fastNLP/core/drivers/torch_driver/torch_driver.py b/fastNLP/core/drivers/torch_driver/torch_driver.py
index 156681be..a0c562f7 100644
--- a/fastNLP/core/drivers/torch_driver/torch_driver.py
+++ b/fastNLP/core/drivers/torch_driver/torch_driver.py
@@ -1,7 +1,6 @@
 import os
 from typing import Union, Dict, Optional, Callable
 from functools import partial
-from pkg_resources import parse_version
 import numpy as np
 import random
 from dataclasses import dataclass
@@ -52,23 +51,23 @@ class TorchDriver(Driver):
         super(TorchDriver, self).__init__(model)
 
         """ 进行 fp16 的设置 """
+        self._torch_kwargs = kwargs.get("torch_kwargs", {})
+
         # 因为 ddp 和 single_device 的混合精度训练的设置是一样的，因此可以统一抽象到这里；
         self.fp16 = fp16
-        if parse_version(torch.__version__) < parse_version('1.6'):
-            raise RuntimeError(f"Pytorch({torch.__version__}) need to be older than 1.6.")
-        self.auto_cast, _grad_scaler = _build_fp16_env(dummy=not fp16)
-        self.grad_scaler = _grad_scaler()
+        self.auto_cast, _grad_scaler = _build_fp16_env(dummy=not self.fp16)
+        self.grad_scaler = _grad_scaler(**self._torch_kwargs.get('gradscaler_kwargs', {}))
+        self.set_grad_to_none = self._torch_kwargs.get('set_grad_to_none')
 
-        self._torch_kwargs = kwargs.get("torch_kwargs", {})
         # 用来设置 `torch_move_data_to_device` 中的 `non_blocking` 参数；
-        self.non_blocking = self._torch_kwargs.get("torch_non_blocking", True)
+        self.non_blocking = self._torch_kwargs.get("non_blocking", True)
 
         # 用来设置是否关闭 auto_param_call 中的参数匹配问题；
         self.wo_auto_param_call = kwargs.get("model_wo_auto_param_call", False)
 
-    def zero_grad(self, set_to_none: bool = False):
+    def zero_grad(self):
         for optimizer in self.optimizers:
-            self._clear_grad(optimizer, set_to_none)
+            self._clear_grad(optimizer, self.set_grad_to_none)
 
     def _clear_grad(self, optimizer, set_to_none):
         param_groups = optimizer.param_groups
@@ -178,7 +177,7 @@ class TorchDriver(Driver):
             else:
                 torch.save(model, filepath)
 
-    def load_model(self, filepath: str, only_state_dict: bool = True, **kwargs):
+    def load_model(self, filepath: Union[Path, str], only_state_dict: bool = True, **kwargs):
         """
         从 folder 中加载权重并赋值到当前 driver 的模型上。
 
@@ -195,10 +194,9 @@ class TorchDriver(Driver):
         elif not isinstance(res, dict) and only_state_dict is True:
             logger.rank_zero_warning(f"It seems like that {filepath} is not state, you may need to use "
                                      f"`only_state_dict=False`")
-        if only_state_dict:
-            model.load_state_dict(res)
-        else:
-            model.load_state_dict(res.state_dict())
+        if not isinstance(res, dict):
+            res = res.state_dict()
+        model.load_state_dict(res)
 
     @rank_zero_call
     def save_checkpoint(self, folder: Path, states: Dict, dataloader, only_state_dict: bool = True, should_save_model: bool = True, **kwargs):
@@ -246,25 +244,13 @@ class TorchDriver(Driver):
 
         # 2. 保存模型的状态；
         if should_save_model:
-            model = self.unwrap_model()
             if not os.path.exists(folder):
                 os.mkdir(folder)
-            if only_state_dict:
-                model_state_dict = {name: param.cpu().detach().clone() for name, param in model.state_dict().items()}
-                # 对于单卡的 driver 来讲，我们实际上（现在）不应该考虑用户在DDP环境下使用单卡模式，从而造成效率损失；
-                torch.save(model_state_dict, folder.joinpath(FASTNLP_MODEL_FILENAME))
-                logger.debug("Save model state dict")
-            else:
-                torch.save(model, folder.joinpath(FASTNLP_MODEL_FILENAME))
-                logger.debug("Save model")
+            model_path = folder.joinpath(FASTNLP_MODEL_FILENAME)
+            self.save_model(model_path, only_state_dict=only_state_dict)
 
         # 3. 保存 optimizers 的状态；
-        optimizers_state_dict = {}
-        for i in range(len(self.optimizers)):
-            optimizer: torch.optim.Optimizer = self.optimizers[i]
-            optimizer_state = optimizer.state_dict()
-            optimizer_state["state"] = optimizer_state_to_device(optimizer_state["state"], torch.device("cpu"))
-            optimizers_state_dict[f"optimizer{i}"] = optimizer_state  # 注意这里没有使用 deepcopy，测试是不需要的；
+        optimizers_state_dict = self.get_optimizer_state()
 
         # 4. 保存fp16的状态
         if not isinstance(self.grad_scaler, DummyGradScaler):
@@ -275,38 +261,42 @@ class TorchDriver(Driver):
         states["optimizers_state_dict"] = optimizers_state_dict
         torch.save(states, Path(folder).joinpath(FASTNLP_CHECKPOINT_FILENAME))
 
+    def get_optimizer_state(self):
+        optimizers_state_dict = {}
+        for i in range(len(self.optimizers)):
+            optimizer: torch.optim.Optimizer = self.optimizers[i]
+            optimizer_state = optimizer.state_dict()
+            optimizer_state["state"] = optimizer_state_to_device(optimizer_state["state"], torch.device("cpu"))
+            optimizers_state_dict[f"optimizer{i}"] = optimizer_state  # 注意这里没有使用 deepcopy，测试是不需要的；
+        return optimizers_state_dict
+
+    def load_optimizer_state(self, states):
+        assert len(states) == len(self.optimizers), f"The number of optimizers is:{len(self.optimizers)}, while in " \
+                                                    f"checkpoint it is:{len(states)}"
+        for i in range(len(self.optimizers)):
+            optimizer: torch.optim.Optimizer = self.optimizers[i]
+            optimizer.load_state_dict(states[f"optimizer{i}"])
+        logger.debug("Load optimizer state dict.")
+
     def load_checkpoint(self, folder: Path, dataloader, only_state_dict: bool = True, should_load_model: bool = True, **kwargs) -> Dict:
         states = torch.load(folder.joinpath(FASTNLP_CHECKPOINT_FILENAME))
 
         # 1. 加载 optimizers 的状态；
         optimizers_state_dict = states.pop("optimizers_state_dict")
-        for i in range(len(self.optimizers)):
-            optimizer: torch.optim.Optimizer = self.optimizers[i]
-            optimizer.load_state_dict(optimizers_state_dict[f"optimizer{i}"])
-        logger.debug("Load optimizer state dict.")
+        self.load_optimizer_state(optimizers_state_dict)
 
         # 2. 加载模型状态；
         if should_load_model:
-            model = self.unwrap_model()
-            res = torch.load(folder.joinpath(FASTNLP_MODEL_FILENAME), map_location='cpu')
-            if only_state_dict:
-                model.load_state_dict(res)
-                logger.debug("Load model state dict...")
-            else:
-                model.load_state_dict(res.state_dict())
-                logger.debug("Load model...")
+            self.load_model(filepath=folder.joinpath(FASTNLP_MODEL_FILENAME), only_state_dict=only_state_dict)
 
         # 3. 加载fp16的状态
         if "grad_scaler_state_dict" in states:
             grad_scaler_state_dict = states.pop("grad_scaler_state_dict")
-            if isinstance(self.grad_scaler, DummyGradScaler):
-                self.auto_cast, _grad_scaler = _build_fp16_env(dummy=False)
-                self.grad_scaler = _grad_scaler()
-                self.fp16 = True
-            self.grad_scaler.load_state_dict(grad_scaler_state_dict)
-            logger.debug("Load grad_scaler state dict...")
+            if not isinstance(self.grad_scaler, DummyGradScaler):
+                self.grad_scaler.load_state_dict(grad_scaler_state_dict)
+                logger.debug("Load grad_scaler state dict...")
         elif not isinstance(self.grad_scaler, DummyGradScaler):
-            logger.warning(f"Checkpoint {folder} is not trained with fp16=True, while resume to a fp16=True training, "
+            logger.rank_zero_warning(f"Checkpoint {folder} is not trained with fp16=True, while resume to a fp16=True training, "
                            f"the training process may be unstable.")
 
         # 4. 恢复 sampler 的状态；
diff --git a/fastNLP/core/metrics/classify_f1_pre_rec_metric.py b/fastNLP/core/metrics/classify_f1_pre_rec_metric.py
index b32c2587..53e0d630 100644
--- a/fastNLP/core/metrics/classify_f1_pre_rec_metric.py
+++ b/fastNLP/core/metrics/classify_f1_pre_rec_metric.py
@@ -153,7 +153,7 @@ class ClassifyFPreRecMetric(Metric):
                                f"size:{pred.shape}, target should have size: {pred.shape} or "
                                f"{pred.shape[:-1]}, got {target.shape}.")
 
-        target_idxes = set(target.reshape(-1).tolist())
+        target_idxes = set(target.reshape(-1).tolist()+pred.reshape(-1).tolist())
         for target_idx in target_idxes:
             self._tp[target_idx] += ((pred == target_idx) * (target == target_idx) * masks).sum().item()
             self._fp[target_idx] += ((pred == target_idx) * (target != target_idx) * masks).sum().item()
diff --git a/fastNLP/core/utils/utils.py b/fastNLP/core/utils/utils.py
index c33154fa..0890f5ec 100644
--- a/fastNLP/core/utils/utils.py
+++ b/fastNLP/core/utils/utils.py
@@ -227,7 +227,7 @@ def _check_valid_parameters_number(fn, expected_params:List[str], fn_name=None):
         raise e
 
 
-def check_user_specific_params(user_params: Dict, fn: Callable):
+def check_user_specific_params(user_params: Dict, fn: Callable, fn_name=None):
     """
     该函数使用用户的输入来对指定函数的参数进行赋值，主要用于一些用户无法直接调用函数的情况；
     主要作用在于帮助检查用户对使用函数 ``fn`` 的参数输入是否有误；
@@ -235,13 +235,16 @@ def check_user_specific_params(user_params: Dict, fn: Callable):
     :param user_params: 用户指定的参数的值，应当是一个字典，其中 ``key`` 表示每一个参数的名字，
         ``value`` 为每一个参数的值；
     :param fn: 将要被调用的函数；
+    :param fn_name: 在打印提示信息是如何显示函数名
     :return: 返回一个字典，其中为在之后调用函数 ``fn`` 时真正会被传进去的参数的值；
     """
+    if fn_name is None:
+        fn_name = fn.__name__
 
     fn_arg_names = get_fn_arg_names(fn)
     for arg_name, arg_value in user_params.items():
         if arg_name not in fn_arg_names:
-            logger.rank_zero_warning(f"Notice your specific parameter `{arg_name}` is not used by function `{fn.__name__}`.")
+            logger.rank_zero_warning(f"Notice parameter `{arg_name}` may not be used by `{fn_name}`.")
     return user_params
 
 
diff --git a/fastNLP/envs/imports.py b/fastNLP/envs/imports.py
index a2b63953..77b642c3 100644
--- a/fastNLP/envs/imports.py
+++ b/fastNLP/envs/imports.py
@@ -18,7 +18,7 @@ else:
 
 
 _IS_WINDOWS = platform.system() == "Windows"
-_NEED_IMPORT_FAIRSCALE = not _IS_WINDOWS and _module_available("fairscale.nn") and 'torch' in need_import
+_NEED_IMPORT_FAIRSCALE = not _IS_WINDOWS and _module_available("fairscale") and 'torch' in need_import
 _NEED_IMPORT_TORCH = _module_available("torch") and 'torch' in need_import
 _NEED_IMPORT_JITTOR = _module_available("jittor") and 'jittor' in need_import
 _NEED_IMPORT_PADDLE = _module_available("paddle") and 'paddle' in need_import
diff --git a/tests/core/controllers/test_trainer_w_evaluator_torch.py b/tests/core/controllers/test_trainer_w_evaluator_torch.py
index 2d525260..752e06d8 100644
--- a/tests/core/controllers/test_trainer_w_evaluator_torch.py
+++ b/tests/core/controllers/test_trainer_w_evaluator_torch.py
@@ -277,13 +277,12 @@ def test_trainer_specific_params_1(
 
         model_wo_auto_param_call=True,
         torch_kwargs={
-            "torch_non_blocking": False,
+            "non_blocking": False,
             "set_grad_to_none": True
         }
 
     )
 
-    assert trainer.set_grad_to_none is True
     assert trainer.driver.non_blocking is False
     assert trainer.driver.wo_auto_param_call is True
 
@@ -320,13 +319,11 @@ def test_trainer_specific_params_2(
                 "broadcast_buffers": True,
                 "find_unused_parameters": True
             },
-            "torch_non_blocking": False,
-            "set_grad_to_none": True
+            "non_blocking": False,
         }
 
     )
 
-    assert trainer.set_grad_to_none is True
     assert trainer.driver.non_blocking is False
     assert trainer.driver.wo_auto_param_call is True
     assert trainer.driver.output_from_new_proc == "all"
diff --git a/tests/core/drivers/torch_driver/test_ddp.py b/tests/core/drivers/torch_driver/test_ddp.py
index a7c4705a..d9e4da66 100644
--- a/tests/core/drivers/torch_driver/test_ddp.py
+++ b/tests/core/drivers/torch_driver/test_ddp.py
@@ -682,7 +682,7 @@ class TestSaveLoad:
 
             # 3. 检查 fp16 是否被加载
             if fp16:
-                assert isinstance(driver2.grad_scaler, torch.cuda.amp.GradScaler)
+                assert not isinstance(driver2.grad_scaler, torch.cuda.amp.GradScaler)
 
             # 4. 检查 model 的参数是否正确
             # 5. 检查 batch_idx
@@ -731,7 +731,7 @@ class TestSaveLoad:
         """
 
         try:
-            path = "model.ckp"
+            path = "checkpoints/"
 
             num_replicas = len(device)
 
@@ -764,6 +764,7 @@ class TestSaveLoad:
                 driver1.save_checkpoint(Path(path), save_states, dataloader, only_state_dict, should_save_model=True)
             else:
                 driver1.save_checkpoint(Path(path), save_states, dataloader, only_state_dict, should_save_model=True, input_spec=[torch.ones((16, 10))])
+            dist.barrier()  # 等待save成功
             # 加载
             # 更改 batch_size
             dataloader = dataloader_with_randomsampler(self.dataset, 2, True, False, unrepeated=False)
@@ -788,7 +789,7 @@ class TestSaveLoad:
             assert replaced_loader.batch_sampler.sampler.shuffle == sampler_states["shuffle"]
             # 3. 检查 fp16 是否被加载
             if fp16:
-                assert isinstance(driver2.grad_scaler, torch.cuda.amp.GradScaler)
+                assert not isinstance(driver2.grad_scaler, torch.cuda.amp.GradScaler)
 
             # 4. 检查 model 的参数是否正确
             # 5. 检查 batch_idx
diff --git a/tests/core/drivers/torch_driver/test_single_device.py b/tests/core/drivers/torch_driver/test_single_device.py
index 4a507c39..7839e1c9 100644
--- a/tests/core/drivers/torch_driver/test_single_device.py
+++ b/tests/core/drivers/torch_driver/test_single_device.py
@@ -617,7 +617,7 @@ def test_save_and_load_with_randombatchsampler(only_state_dict, fp16):
 
         # 3. 检查 fp16 是否被加载
         if fp16:
-            assert isinstance(driver2.grad_scaler, torch.cuda.amp.GradScaler)
+            assert not isinstance(driver2.grad_scaler, torch.cuda.amp.GradScaler)
 
         # 4. 检查 model 的参数是否正确
         # 5. 检查 batch_idx
@@ -689,7 +689,7 @@ def test_save_and_load_with_randomsampler(only_state_dict, fp16):
 
         # 3. 检查 fp16 是否被加载
         if fp16:
-            assert isinstance(driver2.grad_scaler, torch.cuda.amp.GradScaler)
+            assert not isinstance(driver2.grad_scaler, torch.cuda.amp.GradScaler)
 
         # 4. 检查 model 的参数是否正确
         # 5. 检查 batch_idx
diff --git a/tests/core/metrics/test_classify_f1_pre_rec_metric_torch.py b/tests/core/metrics/test_classify_f1_pre_rec_metric_torch.py
index dc76949b..dcf7d616 100644
--- a/tests/core/metrics/test_classify_f1_pre_rec_metric_torch.py
+++ b/tests/core/metrics/test_classify_f1_pre_rec_metric_torch.py
@@ -195,3 +195,21 @@ class TestClassfiyFPreRecMetric:
         pool.close()
         pool.join()
 
+    def test_binary(self):
+        pred = torch.randn(10, 2)
+        target = torch.randint(1, size=(10,))
+        metric = ClassifyFPreRecMetric()
+        metric.update(pred, target)
+        results = metric.get_metric()
+        print(target)
+        print(metric._tp, metric._fp, metric._fn)
+        assert results['f']==results['rec']==results['pre']
+
+        pred = torch.randn(10, 2)
+        target = torch.randint(2, size=(10,))
+        metric = ClassifyFPreRecMetric()
+        metric.update(pred, target)
+        results = metric.get_metric()
+        print(target)
+        print(metric._tp, metric._fp, metric._fn)
+        assert results['f']==results['rec']==results['pre']