refine amp scaler (#51340)

* refine _found_inf

python/paddle/amp/grad_scaler.py

@@ -18,7 +18,7 @@ from enum import Enum
 
 import numpy as np
 
-from paddle import _legacy_C_ops
+from paddle import _C_ops, _legacy_C_ops
 from paddle.fluid import core, in_dygraph_mode
 from paddle.fluid.data_feeder import check_type
 from paddle.fluid.dygraph import to_variable
@@ -131,6 +131,9 @@ class AmpScaler:
             self._use_dynamic_loss_scaling = use_dynamic_loss_scaling
 
             self._found_inf = to_variable(np.array([0]).astype(np.bool_))
+            self._temp_found_inf_value_false = to_variable(
+                np.array([0]).astype(np.bool_)
+            )
             self._temp_found_inf_fp16 = to_variable(
                 np.array([0]).astype(np.bool_)
             )
@@ -228,6 +231,11 @@ class AmpScaler:
 
         optimize_ops, params_grads = (None, None)
 
+        if hasattr(optimizer, "_set_auxiliary_var"):
+            optimizer._set_auxiliary_var('found_inf', self._found_inf)
+            optimize_ops, params_grads = optimizer.minimize(*args, **kwargs)
+            self._cache_founf_inf = optimizer._get_auxiliary_var('found_inf')
+        else:
             if self._found_inf:
                 self._cache_founf_inf = True
             else:
@@ -318,6 +326,7 @@ class AmpScaler:
                     for param in param_grads
                     if param.dtype == core.VarDesc.VarType.FP32
                 ]
+        self._found_inf = self._temp_found_inf_value_false
         if core.is_compiled_with_npu():
             float_status = _legacy_C_ops.alloc_float_status()
             _legacy_C_ops.clear_float_status(float_status, float_status)
@@ -330,6 +339,9 @@ class AmpScaler:
                     param_grads_fp16,
                     self._temp_found_inf_fp16,
                 )
+                self._found_inf = _C_ops.bitwise_or(
+                    self._found_inf, self._temp_found_inf_fp16
+                )
             if len(param_grads_bf16):
                 _legacy_C_ops.check_finite_and_unscale(
                     param_grads_bf16,
@@ -338,6 +350,9 @@ class AmpScaler:
                     param_grads_bf16,
                     self._temp_found_inf_bf16,
                 )
+                self._found_inf = _C_ops.bitwise_or(
+                    self._found_inf, self._temp_found_inf_bf16
+                )
             if len(param_grads_fp32):
                 _legacy_C_ops.check_finite_and_unscale(
                     param_grads_fp32,
@@ -346,6 +361,9 @@ class AmpScaler:
                     param_grads_fp32,
                     self._temp_found_inf_fp32,
                 )
+                self._found_inf = _C_ops.bitwise_or(
+                    self._found_inf, self._temp_found_inf_fp32
+                )
         else:
             if len(param_grads_fp16):
                 _legacy_C_ops.check_finite_and_unscale(
@@ -354,6 +372,9 @@ class AmpScaler:
                     param_grads_fp16,
                     self._temp_found_inf_fp16,
                 )
+                self._found_inf = _C_ops.bitwise_or(
+                    self._found_inf, self._temp_found_inf_fp16
+                )
             if len(param_grads_bf16):
                 _legacy_C_ops.check_finite_and_unscale(
                     param_grads_bf16,
@@ -361,6 +382,9 @@ class AmpScaler:
                     param_grads_bf16,
                     self._temp_found_inf_bf16,
                 )
+                self._found_inf = _C_ops.bitwise_or(
+                    self._found_inf, self._temp_found_inf_bf16
+                )
             if len(param_grads_fp32):
                 _legacy_C_ops.check_finite_and_unscale(
                     param_grads_fp32,
@@ -368,11 +392,8 @@ class AmpScaler:
                     param_grads_fp32,
                     self._temp_found_inf_fp32,
                 )
-
-        self._found_inf = (
-            self._temp_found_inf_fp16
-            or self._temp_found_inf_bf16
-            or self._temp_found_inf_fp32
+                self._found_inf = _C_ops.bitwise_or(
+                    self._found_inf, self._temp_found_inf_fp32
                 )
 
         optimizer_state["state"] = OptimizerState.UNSCALED
@@ -761,6 +782,11 @@ class GradScaler(AmpScaler):
         if optimizer_state["state"] is OptimizerState.INIT:
             self._unscale(optimizer)
 
+        if hasattr(optimizer, "_set_auxiliary_var"):
+            optimizer._set_auxiliary_var('found_inf', self._found_inf)
+            optimizer.step()
+            self._cache_founf_inf = optimizer._get_auxiliary_var('found_inf')
+        else:
             if self._found_inf:
                 self._cache_founf_inf = True
             else:

python/paddle/distributed/fleet/meta_optimizers/ascend/ascend_optimizer.py

@@ -236,6 +236,10 @@ class AscendOptimizer(Optimizer):
                 ret_list.append(var)
         return ret_list
 
+    def _set_auxiliary_var(self, key, val):
+        super()._set_auxiliary_var(key, val)
+        self.inner_opt._set_auxiliary_var(key, val)
+
     def minimize(
         self,
         loss,

python/paddle/distributed/fleet/meta_optimizers/dygraph_optimizer/hybrid_parallel_gradscaler.py

@@ -41,6 +41,11 @@ class HybridParallelGradScaler:
 
         optimize_ops, params_grads = (None, None)
 
+        if hasattr(optimizer, "_set_auxiliary_var"):
+            optimizer._set_auxiliary_var('found_inf', self._found_inf)
+            optimize_ops, params_grads = optimizer.minimize(*args, **kwargs)
+            self._cache_founf_inf = optimizer._get_auxiliary_var('found_inf')
+        else:
             if self._found_inf:
                 self._cache_founf_inf = True
             else:

python/paddle/distributed/fleet/meta_optimizers/meta_optimizer_base.py

@@ -25,6 +25,10 @@ class MetaOptimizerBase(Optimizer):
         self.meta_optimizers_white_list = []
         self.meta_optimizers_black_list = []
 
+    def _set_auxiliary_var(self, key, val):
+        super()._set_auxiliary_var(key, val)
+        self.inner_opt._set_auxiliary_var(key, val)
+
     def _set_basic_info(
         self, loss, role_maker, user_defined_optimizer, user_defined_strategy
     ):

python/paddle/distributed/fleet/meta_parallel/sharding/group_sharded_optimizer_stage2.py

@@ -203,6 +203,10 @@ class GroupShardedOptimizerStage2(Optimizer):
         # Update optimizer parameters and adjust parameter storage and use according to rank.
         self._update_opt_status()
 
+    def _set_auxiliary_var(self, key, val):
+        super()._set_auxiliary_var(key, val)
+        self._optim._set_auxiliary_var(key, val)
+
     @paddle.autograd.no_grad()
     def _sync_params_and_buffers(self):
         """

python/paddle/distributed/fleet/meta_parallel/sharding/group_sharded_utils.py

@@ -19,10 +19,10 @@ from types import MethodType
 import numpy as np
 
 import paddle
-from paddle import _legacy_C_ops
+from paddle import _C_ops, _legacy_C_ops
 from paddle.common_ops_import import dygraph_only
+from paddle.fluid import core
 from paddle.fluid.dygraph import to_variable
-from paddle.framework import core
 from paddle.nn import clip
 
 
@@ -262,6 +262,7 @@ def GroupShardedScaler(scaler):
             0 if device == "cpu" else int(paddle.get_device().split(":")[1])
         )
 
+        self._found_inf = self._temp_found_inf_value_false
         with device_guard(dev_id, device):
             if len(param_grads_bfp16):
                 _legacy_C_ops.check_finite_and_unscale(
@@ -270,6 +271,9 @@ def GroupShardedScaler(scaler):
                     param_grads_bfp16,
                     temp_found_inf_bfp16,
                 )
+                self._found_inf = _C_ops.bitwise_or(
+                    self._found_inf, temp_found_inf_bfp16
+                )
             if len(param_grads_fp16):
                 _legacy_C_ops.check_finite_and_unscale(
                     param_grads_fp16,
@@ -277,6 +281,9 @@ def GroupShardedScaler(scaler):
                     param_grads_fp16,
                     temp_found_inf_fp16,
                 )
+                self._found_inf = _C_ops.bitwise_or(
+                    self._found_inf, temp_found_inf_fp16
+                )
             if len(param_grads_fp32):
                 _legacy_C_ops.check_finite_and_unscale(
                     param_grads_fp32,
@@ -284,21 +291,17 @@ def GroupShardedScaler(scaler):
                     param_grads_fp32,
                     temp_found_inf_fp32,
                 )
-
-        self._found_inf = (
-            1
-            if temp_found_inf_bfp16
-            or temp_found_inf_fp16
-            or temp_found_inf_fp32
-            else 0
+                self._found_inf = _C_ops.bitwise_or(
+                    self._found_inf, temp_found_inf_fp32
                 )
-        is_found_inf = paddle.to_tensor([self._found_inf], dtype="int32")
+
+        self._found_inf = self._found_inf.cast("int32")
 
         paddle.distributed.all_reduce(
-            is_found_inf, op=paddle.distributed.ReduceOp.SUM, group=None
+            self._found_inf, op=paddle.distributed.ReduceOp.MAX, group=None
         )
 
-        self._found_inf = is_found_inf.numpy()[0]
+        self._found_inf = self._found_inf.cast("bool")
 
     scaler._unscale = MethodType(unscale_method, scaler)
     return scaler

python/paddle/distributed/fleet/scaler.py

@@ -17,7 +17,7 @@ from types import MethodType
 import numpy as np
 
 import paddle
-from paddle import _legacy_C_ops
+from paddle import _C_ops, _legacy_C_ops
 from paddle.distributed import fleet
 from paddle.fluid.dygraph import to_variable
 from paddle.framework import core
@@ -66,6 +66,7 @@ def distributed_scaler(scaler):
             ]
         temp_found_inf_fp16 = to_variable(np.array([0]).astype(np.bool_))
         temp_found_inf_fp32 = to_variable(np.array([0]).astype(np.bool_))
+        self._found_inf = self._temp_found_inf_value_false
         if len(param_grads_fp16):
             _legacy_C_ops.check_finite_and_unscale(
                 param_grads_fp16,
@@ -73,6 +74,9 @@ def distributed_scaler(scaler):
                 param_grads_fp16,
                 temp_found_inf_fp16,
             )
+            self._found_inf = _C_ops.bitwise_or(
+                self._found_inf, temp_found_inf_fp16
+            )
         if len(param_grads_fp32):
             _legacy_C_ops.check_finite_and_unscale(
                 param_grads_fp32,
@@ -80,17 +84,19 @@ def distributed_scaler(scaler):
                 param_grads_fp32,
                 temp_found_inf_fp32,
             )
+            self._found_inf = _C_ops.bitwise_or(
+                self._found_inf, temp_found_inf_fp32
+            )
 
-        self._found_inf = 1 if temp_found_inf_fp16 or temp_found_inf_fp32 else 0
-        is_found_inf = paddle.to_tensor([self._found_inf], dtype="int32")
+        self._found_inf = self._found_inf.cast("int32")
 
         # TODO(shenliang03) Since dp allreduce in the optimizer is
         # after the gradscaler, check_finite needs to synchronize global
         # information. In the future, we should use check_group to speed.
         paddle.distributed.all_reduce(
-            is_found_inf, op=paddle.distributed.ReduceOp.MAX, group=None
+            self._found_inf, op=paddle.distributed.ReduceOp.MAX, group=None
         )
-        self._found_inf = is_found_inf.numpy()[0]
+        self._found_inf = self._found_inf.cast("bool")
 
     # Only data_parallel doesn't need to modify scaler
     fleet_env = fleet.fleet

python/paddle/fluid/optimizer.py

@@ -970,6 +970,13 @@ class Optimizer:
         self._create_global_learning_rate()
 
         if in_dygraph_mode():
+            found_inf = self._get_auxiliary_var('found_inf')
+            if found_inf:
+                if isinstance(found_inf, core.eager.Tensor):
+                    self._set_auxiliary_var('found_inf', True)
+            else:
+                if isinstance(found_inf, core.eager.Tensor):
+                    self._set_auxiliary_var('found_inf', False)
                 for param_and_grad in parameters_and_grads:
                     if param_and_grad[1] is None:
                         continue

python/paddle/incubate/optimizer/lookahead.py

@@ -144,6 +144,10 @@ class LookAhead(Optimizer):
         self._global_step_var = None
         self._k_var = None
 
+    def _set_auxiliary_var(self, key, val):
+        super()._set_auxiliary_var(key, val)
+        self.inner_optimizer._set_auxiliary_var(key, val)
+
     @framework.dygraph_only
     @imperative_base.no_grad
     def step(self):

python/paddle/optimizer/adadelta.py

@@ -149,12 +149,15 @@ class Adadelta(Optimizer):
             parameters = parameters.get('params')
 
         for p in parameters:
+            if p.name in self._already_create_accumulater:
+                continue
             if self._multi_precision and self._is_dtype_fp16_or_bf16(p.dtype):
                 master_p = self._create_master_weight(p)
                 self._add_accumulator(self._avg_squared_grad_acc_str, master_p)
                 self._add_accumulator(
                     self._avg_squared_update_acc_str, master_p
                 )
+                self._already_create_accumulater.add(p.name)
                 continue
             if (
                 self._is_dtype_fp16_or_bf16(p.dtype)
@@ -166,6 +169,7 @@ class Adadelta(Optimizer):
                 )
             self._add_accumulator(self._avg_squared_grad_acc_str, p)
             self._add_accumulator(self._avg_squared_update_acc_str, p)
+            self._already_create_accumulater.add(p.name)
 
     def _append_optimize_op(self, block, param_and_grad):
         if isinstance(param_and_grad, dict):

python/paddle/optimizer/adagrad.py

@@ -142,9 +142,12 @@ class Adagrad(Optimizer):
             parameters = self._update_param_group(parameters)
 
         for p in parameters:
+            if p.name in self._already_create_accumulater:
+                continue
             if self._multi_precision and self._is_dtype_fp16_or_bf16(p.dtype):
                 master_p = self._create_master_weight(p)
                 self._add_accumulator(self._moment_acc_str, master_p)
+                self._already_create_accumulater.add(p.name)
                 continue
             if (
                 self._is_dtype_fp16_or_bf16(p.dtype)
@@ -159,6 +162,7 @@ class Adagrad(Optimizer):
                 p,
                 fill_value=self.initial_accumulator_value,
             )
+            self._already_create_accumulater.add(p.name)
 
     def _append_optimize_op(self, block, param_and_grad):
         assert isinstance(block, framework.Block)

python/paddle/optimizer/adam.py

@@ -260,9 +260,12 @@ class Adam(Optimizer):
 
         # Create accumulator tensors for first and second moments
         for p in parameters:
+            if p.name in self._already_create_accumulater:
+                continue
             if self._multi_precision and self._is_dtype_fp16_or_bf16(p.dtype):
                 master_p = self._create_master_weight(p)
                 self._add_moments_pows(master_p)
+                self._already_create_accumulater.add(p.name)
                 continue
             if (
                 self._is_dtype_fp16_or_bf16(p.dtype)
@@ -273,6 +276,7 @@ class Adam(Optimizer):
                     "Consider using multi_precision=True option of the Adam optimizer."
                 )
             self._add_moments_pows(p)
+            self._already_create_accumulater.add(p.name)
 
     def _append_optimize_op(self, block, param_and_grad):
         assert isinstance(block, framework.Block)
@@ -303,8 +307,6 @@ class Adam(Optimizer):
         # create the adam optimize op
 
         if framework.in_dygraph_mode():
-            found_inf = self._get_auxiliary_var('found_inf')
-
             _beta1 = (
                 self._beta1
                 if not isinstance(self._beta1, Variable)
@@ -325,7 +327,7 @@ class Adam(Optimizer):
                 beta1_pow_acc,
                 beta2_pow_acc,
                 master_weight,
-                found_inf,
+                None,
                 _beta1,
                 _beta2,
                 self._epsilon,
@@ -636,6 +638,13 @@ class Adam(Optimizer):
                         if master_weight is not None
                         else None
                     )
+                    found_inf = self._get_auxiliary_var('found_inf')
+                    if found_inf:
+                        if isinstance(found_inf, core.eager.Tensor):
+                            self._set_auxiliary_var('found_inf', True)
+                    else:
+                        if isinstance(found_inf, core.eager.Tensor):
+                            self._set_auxiliary_var('found_inf', False)
                         _, _, _, _, _, _ = _C_ops.merged_adam_(
                             self._param_dict[key][param_group_idx],
                             grad_dict[key],

python/paddle/optimizer/adamax.py

@@ -195,9 +195,12 @@ class Adamax(Optimizer):
 
         # Create accumulator tensors for first moment and infinity norm
         for p in parameters:
+            if p.name in self._already_create_accumulater:
+                continue
             if self._multi_precision and self._is_dtype_fp16_or_bf16(p.dtype):
                 master_p = self._create_master_weight(p)
                 self._add_moments_pows(master_p)
+                self._already_create_accumulater.add(p.name)
                 continue
             if (
                 self._is_dtype_fp16_or_bf16(p.dtype)
@@ -208,6 +211,7 @@ class Adamax(Optimizer):
                     "Consider using multi_precision=True option of the Adam optimizer."
                 )
             self._add_moments_pows(p)
+            self._already_create_accumulater.add(p.name)
 
     def _append_optimize_op(self, block, param_and_grad):
         assert isinstance(block, framework.Block)

python/paddle/optimizer/adamw.py

@@ -283,6 +283,7 @@ class AdamW(Optimizer):
         self._use_multi_tensor = None
         self.regularization = None
         self._auxiliary_vars = {}
+        self._already_create_accumulater = set()
 
     def _set_auxiliary_var(self, key, val):
         self._auxiliary_vars[key] = val
@@ -368,9 +369,12 @@ class AdamW(Optimizer):
 
         # Create accumulator tensors for first and second moments
         for p in parameters:
+            if p.name in self._already_create_accumulater:
+                continue
             if self._multi_precision and self._is_dtype_fp16_or_bf16(p.dtype):
                 master_p = self._create_master_weight(p)
                 self._add_moments_pows(master_p)
+                self._already_create_accumulater.add(p.name)
                 continue
             if (
                 self._is_dtype_fp16_or_bf16(p.dtype)
@@ -381,6 +385,7 @@ class AdamW(Optimizer):
                     "Consider using multi_precision=True option of the Adam optimizer."
                 )
             self._add_moments_pows(p)
+            self._already_create_accumulater.add(p.name)
 
     def _append_optimize_op(self, block, param_and_grad):
         assert isinstance(block, framework.Block)
@@ -437,7 +442,6 @@ class AdamW(Optimizer):
                 else self._beta2.numpy().item(0)
             )
 
-            found_inf = self._get_auxiliary_var('found_inf')
             _, _, _, _, _, _ = _C_ops.adamw_(
                 param_and_grad[0],
                 param_and_grad[1],
@@ -447,7 +451,7 @@ class AdamW(Optimizer):
                 beta1_pow_acc,
                 beta2_pow_acc,
                 master_weight,
-                found_inf,
+                None,
                 _beta1,
                 _beta2,
                 self._epsilon,

python/paddle/optimizer/lamb.py

@@ -159,11 +159,15 @@ class Lamb(Optimizer):
 
         # Create accumulator tensors for first and second moments
         for p in parameters:
+            if p.name in self._already_create_accumulater:
+                continue
             if self._multi_precision and self._is_dtype_fp16_or_bf16(p.dtype):
                 master_p = self._create_master_weight(p)
                 self._add_moments_pows(master_p)
+                self._already_create_accumulater.add(p.name)
             else:
                 self._add_moments_pows(p)
+                self._already_create_accumulater.add(p.name)
 
     def _add_moments_pows(self, p):
         acc_dtype = p.dtype
@@ -233,7 +237,6 @@ class Lamb(Optimizer):
             self._used_master_weights[p_name] = master_weight.name
         else:
             master_weight = None
-        found_inf = self._get_auxiliary_var('found_inf')
 
         if framework.in_dygraph_mode():
             _C_ops.lamb_(
@@ -245,7 +248,7 @@ class Lamb(Optimizer):
                 beta1_pow_acc,
                 beta2_pow_acc,
                 master_weight,
-                found_inf,
+                None,
                 weight_decay,
                 self._beta1,
                 self._beta2,
@@ -283,6 +286,7 @@ class Lamb(Optimizer):
                 inputs["MasterParam"] = master_weight
                 outputs["MasterParamOut"] = master_weight
 
+            found_inf = self._get_auxiliary_var('found_inf')
             if found_inf:
                 inputs["SkipUpdate"] = found_inf
 

python/paddle/optimizer/momentum.py

@@ -211,9 +211,12 @@ class Momentum(Optimizer):
             parameters = self._update_param_group(parameters)
 
         for p in parameters:
+            if p.name in self._already_create_accumulater:
+                continue
             if self._multi_precision and self._is_dtype_fp16_or_bf16(p.dtype):
                 master_p = self._create_master_weight(p)
                 self._add_accumulator(self._velocity_acc_str, master_p)
+                self._already_create_accumulater.add(p.name)
                 continue
             if (
                 self._is_dtype_fp16_or_bf16(p.dtype)
@@ -224,6 +227,7 @@ class Momentum(Optimizer):
                     "Consider using multi_precision=True option of the Momentum optimizer."
                 )
             self._add_accumulator(self._velocity_acc_str, p)
+            self._already_create_accumulater.add(p.name)
 
     def _create_regularization_of_grad(self, param, grad, regularization=None):
         """Create and add backward regularization Operators
@@ -472,6 +476,13 @@ class Momentum(Optimizer):
                 )
 
                 if in_dygraph_mode():
+                    found_inf = self._get_auxiliary_var('found_inf')
+                    if found_inf:
+                        if isinstance(found_inf, core.eager.Tensor):
+                            self._set_auxiliary_var('found_inf', True)
+                    else:
+                        if isinstance(found_inf, core.eager.Tensor):
+                            self._set_auxiliary_var('found_inf', False)
                         _, _, _ = _C_ops.merged_momentum_(
                             self._param_dict[key][param_group_idx],
                             grad_dict[key],
@@ -480,8 +491,12 @@ class Momentum(Optimizer):
                             master_weight,
                             self._momentum,
                             self._use_nesterov,
-                        self._regularization_method_dict[key][param_group_idx],
-                        self._regularization_coeff_dict[key][param_group_idx],
+                            self._regularization_method_dict[key][
+                                param_group_idx
+                            ],
+                            self._regularization_coeff_dict[key][
+                                param_group_idx
+                            ],
                             find_master,
                             self._rescale_grad,
                         )

python/paddle/optimizer/optimizer.py

@@ -275,6 +275,7 @@ class Optimizer:
 
         self._param_dict = self._create_multi_tensor_dict()
         self._auxiliary_vars = {}
+        self._already_create_accumulater = set()
 
     def _set_auxiliary_var(self, key, val):
         self._auxiliary_vars[key] = val
@@ -979,6 +980,13 @@ class Optimizer:
                 self._create_accumulators(target_block, params_acc_dict)
 
             if framework._non_static_mode():
+                found_inf = self._get_auxiliary_var('found_inf')
+                if found_inf:
+                    if isinstance(found_inf, core.eager.Tensor):
+                        self._set_auxiliary_var('found_inf', True)
+                else:
+                    if isinstance(found_inf, core.eager.Tensor):
+                        self._set_auxiliary_var('found_inf', False)
                     if isinstance(parameters_and_grads, list):
                         for param_and_grad in parameters_and_grads:
                             if param_and_grad[1] is None:

python/paddle/optimizer/rmsprop.py

@@ -203,11 +203,15 @@ class RMSProp(Optimizer):
             parameters = parameters.get('params')
 
         for p in parameters:
+            if p.name in self._already_create_accumulater:
+                continue
+
             if self._multi_precision and self._is_dtype_fp16_or_bf16(p.dtype):
                 master_p = self._create_master_weight(p)
                 self._add_accumulator(self._momentum_acc_str, master_p)
                 self._add_accumulator(self._mean_square_acc_str, master_p)
                 self._add_accumulator(self._mean_grad_acc_str, master_p)
+                self._already_create_accumulater.add(p.name)
                 continue
             if (
                 self._is_dtype_fp16_or_bf16(p.dtype)
@@ -220,6 +224,7 @@ class RMSProp(Optimizer):
             self._add_accumulator(self._momentum_acc_str, p)
             self._add_accumulator(self._mean_square_acc_str, p)
             self._add_accumulator(self._mean_grad_acc_str, p)
+            self._already_create_accumulater.add(p.name)
 
     def _append_optimize_op(self, block, param_and_grad):
         if not isinstance(block, framework.Block):

python/paddle/optimizer/sgd.py

@@ -99,8 +99,11 @@ class SGD(Optimizer):
 
         # Create accumulator tensors for first and second moments
         for p in parameters:
+            if p.name in self._already_create_accumulater:
+                continue
             if self._multi_precision and self._is_dtype_fp16_or_bf16(p.dtype):
                 master_p = self._create_master_weight(p)
+                self._already_create_accumulater.add(p.name)
                 continue
             if (
                 self._is_dtype_fp16_or_bf16(p.dtype)