def __init__(self, network, optimizer, sens=1.0):
super(TrainOneStepCell, self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.network.add_flags(defer_inline=True)
self.weights = optimizer.parameters
self.optimizer = optimizer
self.grad = C.GradOperation(get_by_list=True, sens_param=True)
self.sens = sens
self.reducer_flag = False
self.grad_reducer = None
self._tuple_add = _TupleAdd()
self._tuple_mul = _TupleMul()
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.DATA_PARALLEL,
ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
mean = _get_gradients_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters,
mean, degree)
self.do_privacy = False
self.grad_mask_tup = () # tuple containing grad_mask(cell)
self.de_weight_tup = () # tuple containing de_weight(cell)
self._suppress_pri_ctrl = None
def __init__(self, network, optimizer, sens=1.0):
super(TrainOneStepCellWithGradClip, self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.network.add_flags(defer_inline=True)
self.weights = optimizer.parameters
self.optimizer = optimizer
self.grad = C.GradOperation(get_by_list=True, sens_param=True)
self.sens = sens
self.reducer_flag = False
self.grad_reducer = None
self.hyper_map = C.HyperMap()
self.greater = P.Greater()
self.select = P.Select()
self.norm = nn.Norm(keep_dims=True)
self.dtype = P.DType()
self.cast = P.Cast()
self.concat = P.Concat(axis=0)
self.ten = Tensor(np.array([10.0]).astype(np.float32))
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
mean = _get_mirror_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters, mean, degree)
def __init__(self, network, optimizer, scale_update_cell=None):
super(TrainOneStepWithLossScaleCell, self).__init__(auto_prefix=False)
self.network = network
self.network.add_flags(defer_inline=True)
self.weights = ParameterTuple(network.trainable_params())
self.optimizer = optimizer
self.grad = C.GradOperation('grad', get_by_list=True, sens_param=True)
self.hyper_map = C.HyperMap()
self.alloc_status = NPUAllocFloatStatus()
self.get_status = NPUGetFloatStatus()
self.clear_status = NPUClearFloatStatus()
self.reduce_sum = ReduceSum(keep_dims=False)
self.base = Tensor(1, mstype.float32)
self.less_equal = LessEqual()
self.depend_parameter_use = ControlDepend(depend_mode=1)
self.allreduce = P.AllReduce()
self.parallel_mode = _get_parallel_mode()
self.grad_reducer = None
self.reducer_flag = self.parallel_mode in [
ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL
]
if self.reducer_flag:
mean = _get_mirror_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters,
mean, degree)
self.is_distributed = self.parallel_mode != ParallelMode.STAND_ALONE
self.loss_scale = None
self.loss_scaling_manager = scale_update_cell
if scale_update_cell:
self.loss_scale = Parameter(Tensor(
scale_update_cell.get_loss_scale(), dtype=mstype.float32),
name="loss_scale")
self.add_flags(has_effect=True)
def _process_vocab_cache(self, slice_mode):
"""PS embeddingLookup cache check and process."""
self.cache_enable = False
if self.vocab_cache_size > 0:
if self.target == 'CPU':
logger.warning("The configuration of 'vocab_cache_size' is valid only in 'DEVICE' target, "
"current target is CPU, so it will be ignored.")
return
enable_ps = _get_ps_context("enable_ps")
if not enable_ps:
logger.warning("The configuration of 'vocab_cache_size' is valid only in parameter server trainning "
"mode, current mode is not parameter server trainning mode, so it will be ignored.")
return
parallel_mode = _get_parallel_mode()
is_auto_parallel = parallel_mode in (ParallelMode.SEMI_AUTO_PARALLEL, ParallelMode.AUTO_PARALLEL)
if is_auto_parallel:
device_num = get_group_size()
full_batch = _get_full_batch()
if device_num > 1 and not (full_batch and slice_mode == "table_row_slice"):
raise ValueError("The embeddingLookup cache of parameter server parallel only be used "
"in 'full_batch' and 'table_row_slice' parallel strategy.")
self.vocab_cache_size = self.vocab_cache_size * device_num
self.cache_enable = True
if _is_role_worker():
self.vocab_size = self.vocab_cache_size
def __init__(self, network, total_steps=1, sens=16384.0):
super(TrainStepWrap, self).__init__(auto_prefix=False)
self.network = network
self.network.set_train()
self.network.add_flags(defer_inline=True)
self.weights = ParameterTuple(network.trainable_params())
lr = dynamic_lr(0.01, total_steps, 5000)
self.optimizer = nn.Adam(self.weights,
learning_rate=lr,
beta1=0.9,
beta2=0.999,
eps=1e-8,
loss_scale=sens)
self.hyper_map = C.HyperMap()
self.grad = C.GradOperation(get_by_list=True, sens_param=True)
self.sens = sens
self.reducer_flag = False
self.grad_reducer = None
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.DATA_PARALLEL,
ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
mean = _get_gradients_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(
self.optimizer.parameters, mean, degree)
def __init__(self, network, optimizer, sens=1.0, micro_batches=None, norm_clip=1.0, mech=None):
super(_TrainOneStepCell, self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.network.add_flags(defer_inline=True)
self.weights = optimizer.parameters
self.optimizer = optimizer
self.grad = C.GradOperation('grad', get_by_list=True, sens_param=True)
self.sens = sens
self.reducer_flag = False
self.grad_reducer = None
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
mean = _get_mirror_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters, mean, degree)
# dp params
self._micro_batches = micro_batches
norm_clip = check_param_type('norm_clip', norm_clip, float)
self._l2_norm = check_value_positive('norm_clip', norm_clip)
self._split = P.Split(0, self._micro_batches)
self._clip_by_global_norm = _ClipGradients()
self._mech = mech
self._tuple_add = _TupleAdd()
self._hyper_map = C.HyperMap()
self._micro_float = Tensor(micro_batches, mstype.float32)
def __init__(self,
network,
loss_fn=None,
optimizer=None,
metrics=None,
eval_network=None,
eval_indexes=None,
amp_level="O0",
frequency=278,
stop_epoch=100,
**kwargs):
self._network = network
self._loss_fn = loss_fn
self._optimizer = optimizer
self._loss_scale_manager = None
self._loss_scale_manager_set = False
self._keep_bn_fp32 = True
self._check_kwargs(kwargs)
self._amp_level = amp_level
self._process_amp_args(kwargs)
self._parallel_mode = _get_parallel_mode()
self._device_number = _get_device_num()
self._global_rank = _get_global_rank()
self._parameter_broadcast = _get_parameter_broadcast()
self._frequency = frequency
self._stop_epoch = stop_epoch
self._train_network = self._build_train_network()
self._build_eval_network(metrics, eval_network, eval_indexes)
self._build_predict_network()
def _process_vocab_cache(self, slice_mode):
"""PS embeddingLookup cache check and process."""
self.cache_enable = False
if self.vocab_cache_size > 0:
if self.target == 'CPU':
logger.warning("The configuration of 'vocab_cache_size' is valid only in 'DEVICE' target, "
"current target is CPU, so it will be ignored.")
return
enable_ps = _get_ps_context("enable_ps")
if not enable_ps:
logger.warning("The configuration of 'vocab_cache_size' is valid only in parameter server trainning "
"mode, current mode is not parameter server trainning mode, so it will be ignored.")
return
parallel_mode = _get_parallel_mode()
is_auto_parallel = parallel_mode in (ParallelMode.SEMI_AUTO_PARALLEL, ParallelMode.AUTO_PARALLEL)
if is_auto_parallel:
rank_size = get_group_size()
rank_id = get_rank()
full_batch = _get_full_batch()
if rank_size > 1 and not (full_batch and slice_mode == "table_row_slice"):
raise ValueError("The embeddingLookup cache of parameter server parallel only be used "
"in 'full_batch' and 'table_row_slice' parallel strategy.")
self.vocab_cache_size = self.vocab_cache_size * rank_size
_set_rank_id(rank_id)
self.cache_enable = True
if _is_role_worker():
self.vocab_size = self.vocab_cache_size
if context.get_context("enable_sparse") != self.sparse:
raise ValueError("The value of parameter 'sparse' must be same for all EmbeddingLookup "
"kernels and equal the value of 'enable_sparse' in context setting in "
"parameter server cache mode")
def __init__(self, config):
super(WideDeepModel, self).__init__()
self.batch_size = config.batch_size
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.SEMI_AUTO_PARALLEL, ParallelMode.AUTO_PARALLEL):
self.batch_size = self.batch_size * get_group_size()
self.field_size = config.field_size
self.vocab_size = config.vocab_size
self.emb_dim = config.emb_dim
self.deep_layer_dims_list = config.deep_layer_dim
self.deep_layer_act = config.deep_layer_act
self.init_args = config.init_args
self.weight_init, self.bias_init = config.weight_bias_init
self.weight_bias_init = config.weight_bias_init
self.emb_init = config.emb_init
self.drop_out = config.dropout_flag
self.keep_prob = config.keep_prob
self.deep_input_dims = self.field_size * self.emb_dim
self.layer_dims = self.deep_layer_dims_list + [1]
self.all_dim_list = [self.deep_input_dims] + self.layer_dims
init_acts = [('Wide_w', [self.vocab_size, 1], self.emb_init),
('V_l2', [self.vocab_size, self.emb_dim], self.emb_init),
('Wide_b', [1], self.emb_init)]
var_map = init_var_dict(self.init_args, init_acts)
self.wide_w = var_map["Wide_w"]
self.wide_b = var_map["Wide_b"]
self.embedding_table = var_map["V_l2"]
self.dense_layer_1 = DenseLayer(self.all_dim_list[0],
self.all_dim_list[1],
self.weight_bias_init,
self.deep_layer_act, convert_dtype=True)
self.dense_layer_2 = DenseLayer(self.all_dim_list[1],
self.all_dim_list[2],
self.weight_bias_init,
self.deep_layer_act, convert_dtype=True)
self.dense_layer_3 = DenseLayer(self.all_dim_list[2],
self.all_dim_list[3],
self.weight_bias_init,
self.deep_layer_act, convert_dtype=True)
self.dense_layer_4 = DenseLayer(self.all_dim_list[3],
self.all_dim_list[4],
self.weight_bias_init,
self.deep_layer_act, convert_dtype=True)
self.dense_layer_5 = DenseLayer(self.all_dim_list[4],
self.all_dim_list[5],
self.weight_bias_init,
self.deep_layer_act, convert_dtype=True)
self.gather_v2 = P.GatherV2().set_strategy(((1, 8), (1, 1)))
self.gather_v2_1 = P.GatherV2()
self.mul = P.Mul()
self.reduce_sum = P.ReduceSum(keep_dims=False)
self.reshape = P.Reshape()
self.square = P.Square()
self.shape = P.Shape()
self.tile = P.Tile()
self.concat = P.Concat(axis=1)
self.cast = P.Cast()
def __init__(self,
vocab_size,
embedding_size,
param_init='normal',
target='CPU',
slice_mode='batch_slice',
manual_shapes=None):
super(EmbeddingLookup, self).__init__()
self.target = target
if target not in ('CPU', 'DEVICE'):
raise ValueError(
'Attr \'target\' of \'EmbeddingLookup\' Op passed ' +
str(target) +
', should be one of values in \'CPU\', \'DEVICE\'.')
self.gatherv2 = P.GatherV2()
self.embeddinglookup = P.EmbeddingLookup().add_prim_attr(
'primitive_target', 'CPU')
self.embedding_table = Parameter(initializer(
param_init, [vocab_size, embedding_size]),
name='embedding_table')
parallel_mode = _get_parallel_mode()
is_auto_parallel = parallel_mode in (ParallelMode.SEMI_AUTO_PARALLEL,
ParallelMode.AUTO_PARALLEL)
if slice_mode == EmbeddingLookUpSplitMode.FIELD_SLICE and is_auto_parallel:
if not manual_shapes:
raise ValueError(
"in slice field mode, the manual_shapes should not be none"
)
if not isinstance(manual_shapes, tuple):
raise TypeError(
"manual_shapes type must be tuple(int) cannot be {}!".
format(type(manual_shapes)))
for dim in manual_shapes:
Validator.check_integer('manul shape dim', dim, 0, Rel.GT,
self.cls_name)
self.gatherv2.add_prim_attr("manual_split", manual_shapes)
self.embeddinglookup.add_prim_attr("manual_split", manual_shapes)
self.gatherv2.set_strategy(
((get_group_size(), 1), (1, get_group_size())))
self.embeddinglookup.set_strategy(
((get_group_size(), 1), (1, get_group_size())))
elif slice_mode == EmbeddingLookUpSplitMode.TABLE_ROW_SLICE and is_auto_parallel:
self.gatherv2.set_strategy(((get_group_size(), 1), (1, 1)))
self.embeddinglookup.set_strategy(((get_group_size(), 1), (1, 1)))
elif slice_mode == EmbeddingLookUpSplitMode.TABLE_COLUMN_SLICE and is_auto_parallel:
self.gatherv2.set_strategy(((1, get_group_size()), (1, 1)))
self.embeddinglookup.set_strategy(((1, get_group_size()), (1, 1)))
elif slice_mode == EmbeddingLookUpSplitMode.BATCH_SLICE and is_auto_parallel:
self.gatherv2.set_strategy(((1, 1), (get_group_size(), 1)))
self.embeddinglookup.set_strategy(((1, 1), (get_group_size(), 1)))
else:
if is_auto_parallel:
raise ValueError(
"slice_mode should support mode in nn.EmbeddingLookUpSplitMode, but get "
+ str(slice_mode))
def __init__(self, network, config, sens=1000.0):
super(TrainStepWrap, self).__init__()
self.network = network
self.network.set_train()
self.trainable_params = network.trainable_params()
weights_w = []
weights_d = []
for params in self.trainable_params:
if 'wide' in params.name:
weights_w.append(params)
else:
weights_d.append(params)
self.weights_w = ParameterTuple(weights_w)
self.weights_d = ParameterTuple(weights_d)
self.optimizer_w = FTRL(learning_rate=config.ftrl_lr,
params=self.weights_w,
l1=5e-4,
l2=5e-4,
initial_accum=0.1,
loss_scale=sens)
#self.optimizer_d = ProximalAdagrad(self.weights_d, learning_rate=config.adam_lr,loss_scale=sens)
self.optimizer_d = Adam(self.weights_d,
learning_rate=config.adam_lr,
eps=1e-6,
loss_scale=sens)
self.hyper_map = C.HyperMap()
self.grad_w = C.GradOperation('grad_w',
get_by_list=True,
sens_param=True)
self.grad_d = C.GradOperation('grad_d',
get_by_list=True,
sens_param=True)
self.sens = sens
self.loss_net_w = IthOutputCell(network, output_index=0)
self.loss_net_d = IthOutputCell(network, output_index=1)
self.reducer_flag = False
self.grad_reducer_w = None
self.grad_reducer_d = None
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.DATA_PARALLEL,
ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
mean = _get_mirror_mean()
degree = _get_device_num()
self.grad_reducer_w = DistributedGradReducer(
self.optimizer_w.parameters, mean, degree)
self.grad_reducer_d = DistributedGradReducer(
self.optimizer_d.parameters, mean, degree)
def _amp_build_train_network(self,
network,
optimizer,
loss_fn=None,
level='O0',
**kwargs):
"""
Build the mixed precision training cell automatically.
Args:
network (Cell): Definition of the network.
loss_fn (Union[None, Cell]): Definition of the loss_fn. If None,
the `network` should have the loss inside. Default: None.
optimizer (Optimizer): Optimizer to update the Parameter.
level (str): Supports [O0, O2]. Default: "O0".
- O0: Do not change.
- O2: Cast network to float16, keep batchnorm and `loss_fn`
(if set) run in float32, using dynamic loss scale.
cast_model_type (:class:`mindspore.dtype`): Supports `mstype.float16`
or `mstype.float32`. If set to `mstype.float16`, use `float16`
mode to train. If set, overwrite the level setting.
keep_batchnorm_fp32 (bool): Keep Batchnorm run in `float32`. If set,
overwrite the level setting.
loss_scale_manager (Union[None, LossScaleManager]): If None, not
scale the loss, or else scale the loss by LossScaleManager.
If set, overwrite the level setting.
"""
validator.check_value_type('network', network, nn.Cell, None)
validator.check_value_type('optimizer', optimizer, nn.Optimizer, None)
validator.check('level', level, "", ['O0', 'O2'], Rel.IN, None)
self._check_kwargs(kwargs)
config = dict(_config_level[level], **kwargs)
config = edict(config)
if config.cast_model_type == mstype.float16:
network.to_float(mstype.float16)
if config.keep_batchnorm_fp32:
_do_keep_batchnorm_fp32(network)
if loss_fn:
network = _add_loss_network(network, loss_fn,
config.cast_model_type)
if _get_parallel_mode() in (ParallelMode.SEMI_AUTO_PARALLEL,
ParallelMode.AUTO_PARALLEL):
network = _VirtualDatasetCell(network)
loss_scale = 1.0
if config.loss_scale_manager is not None:
print("----model config have loss scale manager !")
network = TrainOneStepCell(network, optimizer,
sens=loss_scale).set_train()
return network
def __init__(self, network, optimizer, scale_update_cell=None):
super(TransformerTrainOneStepWithLossScaleCell,
self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.network.add_flags(defer_inline=True)
self.weights = optimizer.parameters
self.optimizer = optimizer
self.grad = C.GradOperation(get_by_list=True, sens_param=True)
self.reducer_flag = False
self.all_reduce = P.AllReduce()
self.parallel_mode = _get_parallel_mode()
if self.parallel_mode not in ParallelMode.MODE_LIST:
raise ValueError("Parallel mode does not support: ",
self.parallel_mode)
if self.parallel_mode in [
ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL
]:
self.reducer_flag = True
self.grad_reducer = None
if self.reducer_flag:
mean = _get_gradients_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters,
mean, degree)
self.is_distributed = (self.parallel_mode != ParallelMode.STAND_ALONE)
self.clip_gradients = ClipGradients()
self.cast = P.Cast()
if context.get_context("device_target") == "GPU":
self.gpu_target = True
self.float_status = P.FloatStatus()
self.addn = P.AddN()
self.reshape = P.Reshape()
else:
self.gpu_target = False
self.alloc_status = P.NPUAllocFloatStatus()
self.get_status = P.NPUGetFloatStatus()
self.clear_status = P.NPUClearFloatStatus()
self.reduce_sum = P.ReduceSum(keep_dims=False)
self.depend_parameter_use = P.ControlDepend(depend_mode=1)
self.base = Tensor(1, mstype.float32)
self.less_equal = P.LessEqual()
self.hyper_map = C.HyperMap()
self.loss_scale = None
self.loss_scaling_manager = scale_update_cell
if scale_update_cell:
self.loss_scale = Parameter(
Tensor(scale_update_cell.get_loss_scale(),
dtype=mstype.float32))
self.add_flags(has_effect=True)
def _use_parallel_optimizer(self):
"""Indicates whether to use automatic parallelism."""
if context.get_auto_parallel_context("enable_parallel_optimizer"):
if _get_parallel_mode(
) == ParallelMode.DATA_PARALLEL and context.get_context(
"device_target") == "Ascend":
self.use_parallel = True
elif _get_parallel_mode() == ParallelMode.DATA_PARALLEL \
and context.get_context("device_target") != "Ascend":
raise RuntimeError(
"Parallel optimizer only supports Ascend in data parallel mode."
)
elif _get_parallel_mode() in (ParallelMode.STAND_ALONE,
ParallelMode.HYBRID_PARALLEL):
raise RuntimeError(
"Parallel optimizer is not supported in {}.".format(
_get_parallel_mode()))
else:
self.use_parallel = False
else:
self.use_parallel = False
if self.use_parallel:
if self.cls_name not in ["Lamb", "AdamWeightDecay"]:
raise RuntimeError(
"Parallel optimizer does not support optimizer {}".format(
self.cls_name))
self.dev_num = _get_device_num()
if self.dev_num > self.param_length:
raise RuntimeError(
"Parallel optimizer can not be applied when the number of parameters {} is"
" less than the number of devices {}".format(
self.param_length, self.dev_num))
self.param_rank = self._get_parameter_group_id()
self.optim_filter = tuple(
map(lambda x: x == _get_global_rank(), self.param_rank))
self.param_names = []
for param in self.parameters:
self.param_names.append(param.name)
else:
self.optim_filter = (True, ) * self.param_length
def __init__(self, network, optimizer, sens=1.0):
super(TrainOneStepCell, self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.freeze = isinstance(optimizer, acc.FreezeOpt)
self.optimizer = optimizer
if not self.freeze:
self.weights = self.optimizer.parameters
self.train_strategy = getattr(self.optimizer, 'train_strategy', None)
self.grad = C.GradOperation(get_by_list=True, sens_param=True)
self.sens = sens
self.reducer_flag = False
self.grad_reducer = F.identity
self.parallel_mode = _get_parallel_mode()
self.reducer_flag = self.parallel_mode in (
ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL)
self.use_grad_accumulation = self.parallel_mode in (
ParallelMode.DATA_PARALLEL, ParallelMode.STAND_ALONE)
if self.use_grad_accumulation:
self.max_accumulation_step = get_auto_parallel_context(
"grad_accumulation_step")
if self.max_accumulation_step <= 1:
self.max_accumulation_step = 1
self.use_grad_accumulation = False
self.grad_accumulation = None
if self.use_grad_accumulation:
self.grad_accumulation = GradientAccumulation(
self.max_accumulation_step, self.optimizer)
if self.reducer_flag:
self.mean = _get_gradients_mean()
self.degree = _get_device_num()
if self.freeze:
self.grad_reducers = (DistributedGradReducer(
opt.parameters, self.mean, self.degree)
for opt in self.optimizer.opts)
self.freeze_nets = tuple(
_TrainFreezeCell(self.network, self.sens, self.grad,
reducer, self.use_grad_accumulation,
self.max_accumulation_step, opt) for
reducer, opt in zip(self.grad_reducers, self.optimizer))
else:
self.grad_reducer = DistributedGradReducer(
self.optimizer.parameters, self.mean, self.degree)
else:
if self.freeze:
self.freeze_nets = tuple(
_TrainFreezeCell(self.network, self.sens, self.grad, self.
grad_reducer, self.use_grad_accumulation,
self.max_accumulation_step, opt)
for opt in self.optimizer.opts)
self.step = Parameter(Tensor(0, dtype=mstype.int32))
def __init__(self, network, optimizer, scale_update_cell=None, micro_batches=None, norm_clip=1.0, mech=None):
super(_TrainOneStepWithLossScaleCell, self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.network.add_flags(defer_inline=True)
self.weights = ParameterTuple(network.trainable_params())
self.optimizer = optimizer
self.grad = C.GradOperation('grad', get_by_list=True, sens_param=True)
self.hyper_map = C.HyperMap()
if context.get_context("device_target") == "GPU":
self.gpu_target = True
self.float_status = P.FloatStatus()
self.addn = P.AddN()
self.reshape = P.Reshape()
else:
self.gpu_target = False
self.alloc_status = NPUAllocFloatStatus()
self.get_status = NPUGetFloatStatus()
self.clear_status = NPUClearFloatStatus()
self.reduce_sum = ReduceSum(keep_dims=False)
self.base = Tensor(1, mstype.float32)
self.less_equal = LessEqual()
self.depend_parameter_use = ControlDepend(depend_mode=1)
self.allreduce = P.AllReduce()
self.parallel_mode = _get_parallel_mode()
self.grad_reducer = F.identity
self.reducer_flag = self.parallel_mode in [ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL]
if self.reducer_flag:
mean = _get_mirror_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters, mean, degree)
self.is_distributed = self.parallel_mode != ParallelMode.STAND_ALONE
self.loss_scale = None
self.loss_scaling_manager = scale_update_cell
if scale_update_cell:
self.loss_scale = Parameter(Tensor(scale_update_cell.get_loss_scale(), dtype=mstype.float32),
name="loss_scale")
self.add_flags(has_effect=True)
# dp params
self._micro_batches = micro_batches
norm_clip = check_param_type('norm_clip', norm_clip, float)
self._l2_norm = check_value_positive('norm_clip', norm_clip)
self._split = P.Split(0, self._micro_batches)
self._clip_by_global_norm = _ClipGradients()
self._mech = mech
self._tuple_add = _TupleAdd()
self._hyper_map = C.HyperMap()
self._micro_float = Tensor(micro_batches, mstype.float32)
def __init__(self, dataset, iter_first_order):
super(_DatasetIterMSLoopSink, self).__init__(dataset)
loop_size = dataset.__loop_size__ + iter_first_order
self.loop_count = int(dataset.get_dataset_size() / loop_size * 2)
# for self._parallel_mode equal to semi_auto_parallel or auto_parallel, use a complete tensor to
# compile, and slice tensor to run. The batch dimension of tensors for compile is device_number
# times the batch dimension of tensors for run. Now only support LoopSink.
if _get_parallel_mode() in (ParallelMode.SEMI_AUTO_PARALLEL, ParallelMode.AUTO_PARALLEL):
device_num = _get_device_num()
self.dataset_shapes = _to_full_shapes(self.dataset_shapes, device_num)
def op():
return tuple()
self.op = op
def __init__(self, network, config):
super(NetWithLossClass, self).__init__(auto_prefix=False)
host_device_mix = bool(config.host_device_mix)
parallel_mode = _get_parallel_mode()
is_auto_parallel = parallel_mode in (ParallelMode.SEMI_AUTO_PARALLEL,
ParallelMode.AUTO_PARALLEL)
self.no_l2loss = host_device_mix and is_auto_parallel
self.network = network
self.l2_coef = config.l2_coef
self.loss = P.SigmoidCrossEntropyWithLogits()
self.square = P.Square()
self.reduceMean_false = P.ReduceMean(keep_dims=False)
if is_auto_parallel:
self.reduceMean_false.add_prim_attr("cross_batch", True)
self.reduceSum_false = P.ReduceSum(keep_dims=False)
def __init__(self, network, optimizer, sens=1.0):
super(MyTrainOneStepCell, self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.weights = optimizer.parameters
self.optimizer = optimizer
self.grad = C.GradOperation(get_by_list=True, sens_param=True)
self.sens = sens
self.reducer_flag = False
self.grad_reducer = None
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.DATA_PARALLEL,
ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
self.grad_reducer = DistributedGradReducer(optimizer.parameters,
True, 8)
def __init__(self, network, optimizer, sens=1.0):
super(TrainOneStepCell, self).__init__(auto_prefix=False)
self.network = network
self.network.add_flags(defer_inline=True)
self.weights = optimizer.parameters
self.optimizer = optimizer
self.grad = C.GradOperation('grad', get_by_list=True, sens_param=True)
self.sens = sens
self.reducer_flag = False
self.grad_reducer = None
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
mean = _get_mirror_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters, mean, degree)
def __init__(self, dataset):
super(_DatasetIterGE, self).__init__(dataset)
self.loop_count = self.get_loop_count(dataset)
parallel_mode = _get_parallel_mode()
self.need_to_full = parallel_mode in (ParallelMode.SEMI_AUTO_PARALLEL,
ParallelMode.AUTO_PARALLEL)
batch_expand_num = 1
if self.need_to_full:
batch_expand_num = _get_device_num()
tensor_list_run = _construct_tensor_list(self.dataset_types,
self.dataset_shapes,
batch_expand_num)
def op():
return tensor_list_run
self.op = op
def __init__(self, network, optimizer, scale_sense=None):
super(TrainOneStepWithLossScaleCell, self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.network.add_flags(defer_inline=True)
self.weights = optimizer.parameters
self.optimizer = optimizer
self.grad = C.GradOperation(get_by_list=True, sens_param=True)
self.hyper_map = C.HyperMap()
if context.get_context("device_target") == "GPU":
self.gpu_target = True
self.float_status = P.FloatStatus()
self.addn = P.AddN()
self.reshape = P.Reshape()
else:
self.gpu_target = False
self.alloc_status = NPUAllocFloatStatus()
self.get_status = NPUGetFloatStatus()
self.clear_status = NPUClearFloatStatus()
self.reduce_sum = ReduceSum(keep_dims=False)
self.base = Tensor(1, mstype.float32)
self.less_equal = LessEqual()
self.depend_parameter_use = ControlDepend(depend_mode=1)
self.allreduce = P.AllReduce()
self.parallel_mode = _get_parallel_mode()
self.grad_reducer = F.identity
self.reducer_flag = self.parallel_mode in [
ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL
]
if self.reducer_flag:
mean = _get_gradients_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters,
mean, degree)
self.is_distributed = self.parallel_mode != ParallelMode.STAND_ALONE
self.scale_sense = None
self.loss_scaling_manager = None
if isinstance(scale_sense, Cell):
self.loss_scaling_manager = scale_sense
self.scale_sense = Parameter(Tensor(scale_sense.get_loss_scale(),
dtype=mstype.float32),
name="scale_sense")
if isinstance(scale_sense, Tensor):
self.scale_sense = Parameter(scale_sense, name='scale_sense')
def __init__(self, network, lr, eps, loss_scale=1000.0):
super(TrainStepWrap, self).__init__(auto_prefix=False)
self.network = network
self.network.set_train()
self.weights = ParameterTuple(network.trainable_params())
self.optimizer = Adam(self.weights, learning_rate=lr, eps=eps, loss_scale=loss_scale)
self.hyper_map = C.HyperMap()
self.grad = C.GradOperation(get_by_list=True, sens_param=True)
self.sens = loss_scale
self.reducer_flag = False
self.grad_reducer = None
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
mean = _get_gradients_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(self.optimizer.parameters, mean, degree)
def __init__(self, dataset):
self.loop_size = 1
if not hasattr(dataset, '__ME_INITED__'):
if not hasattr(dataset, '__loop_size__'):
self.loop_size = dataset.get_dataset_size()
else:
self.loop_size = dataset.__loop_size__
dataset.__ME_INITED__ = _exec_datagraph(dataset,
self.loop_size).queue_name
self.ind = 0
self.dataset = dataset
dataset_types, dataset_shapes = _get_types_and_shapes(dataset)
self.dataset_types, self.dataset_shapes = dataset_types, dataset_shapes
# for self._parallel_mode equal to semi_auto_parallel or auto_parallel, use a complete tensor to
# compile, and slice tensor to run. The batch dimension of tensors for compile is device_number
# times the batch dimension of tensors for run
if _get_parallel_mode() in (ParallelMode.SEMI_AUTO_PARALLEL,
ParallelMode.AUTO_PARALLEL):
device_num = _get_device_num()
self.dataset_shapes = _to_full_shapes(dataset_shapes, device_num)
def __init__(self,
loss_netD,
loss_netG,
optimizerD,
optimizerG,
sens=1,
auto_prefix=True):
super(TrainOneStepCell, self).__init__(auto_prefix=auto_prefix)
self.loss_netD = loss_netD # loss network
self.loss_netD.set_grad()
self.loss_netD.add_flags(defer_inline=True)
self.loss_netG = loss_netG
self.loss_netG.set_grad()
self.loss_netG.add_flags(defer_inline=True)
self.weights_G = optimizerG.parameters
self.optimizerG = optimizerG
self.weights_D = optimizerD.parameters
self.optimizerD = optimizerD
self.grad = ops.GradOperation(get_by_list=True, sens_param=True)
self.sens = sens
# Parallel processing
self.reducer_flag = False
self.grad_reducer_G = F.identity
self.grad_reducer_D = F.identity
self.parallel_mode = _get_parallel_mode()
if self.parallel_mode in (ParallelMode.DATA_PARALLEL,
ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
mean = _get_gradients_mean()
degree = _get_device_num()
self.grad_reducer_G = DistributedGradReducer(
self.weights_G, mean, degree)
self.grad_reducer_D = DistributedGradReducer(
self.weights_D, mean, degree)
def __init__(self,
learning_rate,
parameters,
weight_decay=0.0,
loss_scale=1.0):
super(Optimizer, self).__init__(auto_prefix=False)
if parameters is not None and not isinstance(parameters, list):
parameters = list(parameters)
if not parameters:
raise ValueError("Optimizer got an empty parameter list.")
if not isinstance(parameters[0], (dict, Parameter)):
raise TypeError(
"Only a list of Parameter or dict can be supported.")
if isinstance(loss_scale, int):
loss_scale = float(loss_scale)
validator.check_value_type("loss_scale", loss_scale, [float],
self.cls_name)
validator.check_positive_float(loss_scale, "loss_scale", self.cls_name)
self.loss_scale = loss_scale
weight_decay = self._preprocess_weight_decay(weight_decay)
self._unique = True
self._target = context.get_context("device_target")
self.dynamic_lr = False
self.assignadd = None
self.global_step = None
self.is_group = False
self.is_group_lr = False
self.is_group_params_ordered = False
learning_rate = self._preprocess_single_lr(learning_rate)
if isinstance(parameters[0], dict):
self.is_group = True
self.group_params = []
self.group_lr = []
self.group_weight_decay = []
self._init_group_params(parameters, learning_rate, weight_decay)
# The final value of dynamic_lr can be determined after the process of parse_single_lr and init_group_params
if self.dynamic_lr:
self.assignadd = P.AssignAdd()
self.global_step = Parameter(initializer(0, [1], mindspore.int32),
name='global_step')
if self.is_group_lr:
if self.dynamic_lr:
self.learning_rate = CellList(self.group_lr)
else:
self.learning_rate = ParameterTuple(self.group_lr)
else:
self.learning_rate = self._build_single_lr(learning_rate,
'learning_rate')
if self.is_group:
self.parameters = ParameterTuple(self.group_params)
self.weight_decay = tuple(self.group_weight_decay)
self.weight_decay_tensor_tuple = tuple(
Tensor(x, mstype.float32) for x in self.group_weight_decay)
decay_filter = lambda x: x > 0
self.decay_flags = tuple(
decay_filter(x) for x in self.weight_decay)
self.exec_weight_decay = any(self.decay_flags)
else:
self.parameters = ParameterTuple(parameters)
self.weight_decay = weight_decay * loss_scale
self.weight_decay_tensor = Tensor(self.weight_decay,
mstype.float32)
decay_filter = lambda x: 'beta' not in x.name and 'gamma' not in x.name
self.decay_flags = tuple(decay_filter(x) for x in self.parameters)
self.exec_weight_decay = self.weight_decay > 0
# when a parameter has been unique, there is no need do another unique in optimizer.
for param in self.parameters:
if param.unique:
self._unique = False
break
ps_filter = lambda x: x.is_param_ps
self.ps_parameters = tuple(ps_filter(x) for x in self.parameters)
ps_cache_filter = lambda x: x.cache_enable
self.cache_enable = tuple(ps_cache_filter(x) for x in self.parameters)
self.reciprocal_scale = Tensor(1.0 / loss_scale, mstype.float32)
self.need_scale = loss_scale != 1.0
self.global_step_increase_tensor = Tensor(1, mstype.int32)
self.param_length = len(self.parameters)
self.map_ = C.Map()
if context.get_auto_parallel_context("enable_parallel_optimizer"):
if _get_parallel_mode(
) == ParallelMode.DATA_PARALLEL and context.get_context(
"device_target") == "Ascend":
self.use_parallel = True
elif _get_parallel_mode() == ParallelMode.DATA_PARALLEL \
and context.get_context("device_target") != "Ascend":
raise RuntimeError(
"Parallel optimizer only supports Ascend in data parallel mode."
)
elif _get_parallel_mode() in (ParallelMode.STAND_ALONE,
ParallelMode.HYBRID_PARALLEL):
raise RuntimeError(
"Parallel optimizer is not supported in {}.".format(
_get_parallel_mode()))
else:
self.use_parallel = False
else:
self.use_parallel = False
if self.use_parallel:
if self.cls_name not in ["Lamb", "AdamWeightDecay"]:
raise RuntimeError(
"Parallel optimizer does not support optimizer {}".format(
self.cls_name))
self.dev_num = _get_device_num()
if self.dev_num > self.param_length:
raise RuntimeError(
"Parallel optimizer can not be applied when the number of parameters {} is"
" less than the number of devices {}".format(
self.param_length, self.dev_num))
self.param_rank = self._get_parameter_group_id()
self.optim_filter = tuple(
map(lambda x: x == _get_global_rank(), self.param_rank))
self.param_names = []
for param in self.parameters:
self.param_names.append(param.name)
else:
self.optim_filter = (True, ) * self.param_length
def compile(self,
obj,
*args,
phase='predict',
params=None,
do_convert=True):
"""
Compiles graph.
Args:
obj (Function/Cell): The function or cell instance need compile.
args (tuple): Function or cell input arguments.
phase (str): The name of compile phase. Default: 'predict'.
params (OrderedDict): The parameters dictionary used for init data graph. Default: None.
do_convert (bool): When set to True, convert ME graph to GE graph after compiling graph.
Return:
Str, the full phase of the cell.
Bool, if the graph has been compiled before, return False, else return True.
"""
obj.check_names()
args_names, args_list = _generate_pip_args(obj, *args)
dic = dict(zip(args_names, args_list))
key = generate_key(phase, dic)
self.phase_prefix = str(key[1])
if phase == 'export':
phase = phase + '.' + str(obj.create_time)
else:
phase = self.phase_prefix + phase + '.' + str(obj.create_time)
enable_debug_runtime = context.get_context("enable_debug_runtime")
enable_ge = context.get_context("enable_ge")
use_vm = not enable_ge or (enable_debug_runtime
and context.get_context("mode")
== context.PYNATIVE_MODE)
if phase in self.compile_cache.keys():
logger.debug("%r graph has existed.", phase)
return phase, False
result = self._executor.compile(obj, args_list, phase, use_vm)
self.compile_cache[phase] = phase
if not result:
raise RuntimeError("Executor compile failed.")
graph = self._executor.get_func_graph(phase)
if graph is None:
logger.error("%r graph compile failed.", phase)
if not do_convert:
return phase, True
if not enable_debug_runtime or enable_ge:
if _get_parallel_mode() in ["auto_parallel", "semi_auto_parallel"]:
obj.parameter_layout_dict = self._executor.get_parameter_layout(
phase)
obj.load_parameter_slice(params)
# the following GE init process is not needed when use vm or ms backend
if enable_ge:
# decide whether to sink based on whether the inputs is virtual or not
if args_list and isinstance(args_list[0],
Tensor) and args_list[0].virtual_flag:
_set_dataset_mode_config('sink')
else:
_set_dataset_mode_config('normal')
self._build_data_graph(obj, params, phase)
if "export" not in phase:
init_phase = "init_subgraph" + "." + str(obj.create_time)
_exec_init_graph(obj, init_phase)
elif not enable_ge and "export" in phase:
self._build_data_graph(obj, params, phase)
return phase, True
def __init__(self,
network,
optimizer,
norm_bound=1.0,
sens=1.0,
micro_batches=None,
noise_mech=None,
clip_mech=None):
super(_TrainOneStepCell, self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.network.add_flags(defer_inline=True)
self.weights = optimizer.parameters
self.optimizer = optimizer
self.grad = C.GradOperation('grad', get_by_list=True, sens_param=True)
self.sens = sens
self.reducer_flag = False
self.grad_reducer = None
parallel_mode = _get_parallel_mode()
if parallel_mode in (ParallelMode.DATA_PARALLEL,
ParallelMode.HYBRID_PARALLEL):
self.reducer_flag = True
if self.reducer_flag:
mean = _get_mirror_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters,
mean, degree)
# dp params
if micro_batches is None:
msg = 'micro_batches must give in differential privacy, but got value: {}'.format(
micro_batches)
LOGGER.error(TAG, msg)
raise ValueError(msg)
self._micro_batches = micro_batches
self._norm_bound = norm_bound
self._split = P.Split(0, self._micro_batches)
self._clip_by_global_norm = _ClipGradients()
self._noise_mech = noise_mech
self._clip_mech = clip_mech
self._tuple_add = _TupleAdd()
self._add = P.TensorAdd()
self._norm = nn.Norm()
self._hyper_map = C.HyperMap()
self._zero = Tensor(0, mstype.float32)
self._assign = P.Assign()
self._div = P.Div()
self._sqrt = P.Sqrt()
self._reduce_sum = P.ReduceSum()
self._square_all = P.Square()
self._less = P.Less()
self._cast = P.Cast()
self._micro_float = Tensor(micro_batches, mstype.float32)
self._noise_mech_param_updater = None
if self._noise_mech is not None and self._noise_mech._decay_policy is not None:
self._noise_mech_param_updater = _MechanismsParamsUpdater(
decay_policy=self._noise_mech._decay_policy,
decay_rate=self._noise_mech._noise_decay_rate,
cur_noise_multiplier=self._noise_mech._noise_multiplier,
init_noise_multiplier=self._noise_mech.
_initial_noise_multiplier)
def __init__(self,
network,
optimizer,
scale_update_cell=None,
micro_batches=None,
norm_bound=1.0,
noise_mech=None,
clip_mech=None):
super(_TrainOneStepWithLossScaleCell, self).__init__(auto_prefix=False)
self.network = network
self.network.set_grad()
self.network.add_flags(defer_inline=True)
self.weights = ParameterTuple(network.trainable_params())
self.optimizer = optimizer
self.grad = C.GradOperation('grad', get_by_list=True, sens_param=True)
self.hyper_map = C.HyperMap()
if context.get_context("device_target") == "GPU":
self.gpu_target = True
self.float_status = P.FloatStatus()
self.addn = P.AddN()
self.reshape = P.Reshape()
else:
self.gpu_target = False
self.alloc_status = NPUAllocFloatStatus()
self.get_status = NPUGetFloatStatus()
self.clear_status = NPUClearFloatStatus()
self.reduce_sum = ReduceSum(keep_dims=False)
self.base = Tensor(1, mstype.float32)
self.less_equal = LessEqual()
self.depend_parameter_use = ControlDepend(depend_mode=1)
self.allreduce = P.AllReduce()
self.parallel_mode = _get_parallel_mode()
self.grad_reducer = F.identity
self.reducer_flag = self.parallel_mode in [
ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL
]
if self.reducer_flag:
mean = _get_mirror_mean()
degree = _get_device_num()
self.grad_reducer = DistributedGradReducer(optimizer.parameters,
mean, degree)
self.is_distributed = self.parallel_mode != ParallelMode.STAND_ALONE
self.loss_scale = None
self.loss_scaling_manager = scale_update_cell
if scale_update_cell:
self.loss_scale = Parameter(Tensor(
scale_update_cell.get_loss_scale(), dtype=mstype.float32),
name="loss_scale")
self.add_flags(has_effect=True)
# dp params
self._micro_batches = micro_batches
self._norm_bound = norm_bound
self._split = P.Split(0, self._micro_batches)
self._clip_by_global_norm = _ClipGradients()
self._noise_mech = noise_mech
self._clip_mech = clip_mech
self._add = P.TensorAdd()
self._norm = nn.Norm()
self._tuple_add = _TupleAdd()
self._hyper_map = C.HyperMap()
self._micro_float = Tensor(micro_batches, mstype.float32)
self._zero = Tensor(0, mstype.float32)
self._assign = P.Assign()
self._div = P.Div()
self._sqrt = P.Sqrt()
self._reduce_sum = P.ReduceSum()
self._square_all = P.Square()
self._less = P.Less()
self._cast = P.Cast()
self._noise_mech_param_updater = None
if self._noise_mech is not None and self._noise_mech._decay_policy is not None:
self._noise_mech_param_updater = _MechanismsParamsUpdater(
decay_policy=self._noise_mech._decay_policy,
decay_rate=self._noise_mech._noise_decay_rate,
cur_noise_multiplier=self._noise_mech._noise_multiplier,
init_noise_multiplier=self._noise_mech.
_initial_noise_multiplier)
def _amp_build_train_network(self,
network,
optimizer,
loss_fn=None,
level='O0',
**kwargs):
"""
Build the mixed precision training cell automatically.
Args:
network (Cell): Definition of the network.
loss_fn (Union[None, Cell]): Definition of the loss_fn. If None,
the `network` should have the loss inside. Default: None.
optimizer (Optimizer): Optimizer to update the Parameter.
level (str): Supports [O0, O2]. Default: "O0".
- O0: Do not change.
- O2: Cast network to float16, keep batchnorm and `loss_fn`
(if set) run in float32, using dynamic loss scale.
cast_model_type (:class:`mindspore.dtype`): Supports `mstype.float16`
or `mstype.float32`. If set to `mstype.float16`, use `float16`
mode to train. If set, overwrite the level setting.
keep_batchnorm_fp32 (bool): Keep Batchnorm run in `float32`. If set,
overwrite the level setting.
loss_scale_manager (Union[None, LossScaleManager]): If None, not
scale the loss, or else scale the loss by LossScaleManager.
If set, overwrite the level setting.
"""
validator.check_value_type('network', network, nn.Cell, None)
validator.check_value_type('optimizer', optimizer, nn.Optimizer, None)
validator.check('level', level, "", ['O0', 'O2'], Rel.IN, None)
self._check_kwargs(kwargs)
config = dict(_config_level[level], **kwargs)
config = edict(config)
if config.cast_model_type == mstype.float16:
network.to_float(mstype.float16)
if config.keep_batchnorm_fp32:
_do_keep_batchnorm_fp32(network)
if loss_fn:
network = _add_loss_network(network, loss_fn,
config.cast_model_type)
if _get_parallel_mode() in (ParallelMode.SEMI_AUTO_PARALLEL,
ParallelMode.AUTO_PARALLEL):
network = _VirtualDatasetCell(network)
loss_scale = 1.0
if config.loss_scale_manager is not None:
loss_scale_manager = config.loss_scale_manager
loss_scale = loss_scale_manager.get_loss_scale()
update_cell = loss_scale_manager.get_update_cell()
if update_cell is not None:
# only cpu not support `TrainOneStepWithLossScaleCell` for control flow.
if not context.get_context(
"enable_ge") and context.get_context(
"device_target") == "CPU":
msg = "Only `loss_scale_manager=None` and " \
"`loss_scale_manager=FixedLossScaleManager(drop_overflow" \
"_update=False)` are supported in current version. " \
"If you use `O2` option, please use " \
"`loss_scale_manager=None` or `FixedLossScaleManager`"
LOGGER.error(TAG, msg)
raise ValueError(msg)
network = _TrainOneStepWithLossScaleCell(
network,
optimizer,
scale_update_cell=update_cell,
micro_batches=self._micro_batches,
norm_bound=self._norm_bound,
clip_mech=self._clip_mech,
noise_mech=self._noise_mech).set_train()
return network
network = _TrainOneStepCell(network,
optimizer,
self._norm_bound,
loss_scale,
micro_batches=self._micro_batches,
clip_mech=self._clip_mech,
noise_mech=self._noise_mech).set_train()
return network
