def __init__(self, strategy1, strategy2):
super().__init__()
self.matmul1 = P.MatMul().shard(strategy1)
self.norm = P.FusedBatchNormEx()
self.gamma = Parameter(Tensor(np.ones([64]), dtype=ms.float32),
name="gamma")
self.beta = Parameter(Tensor(np.ones([64]), dtype=ms.float32),
name="beta")
self.mean = Parameter(Tensor(np.ones([64]), dtype=ms.float32),
name="mean")
self.var = Parameter(Tensor(np.ones([64]), dtype=ms.float32),
name="var")
self.matmul2 = P.MatMul().shard(strategy2)
def __init__(self,
num_features,
gamma_init,
beta_init,
mean_init,
var_init,
use_batch_statistics=None):
super(NetFusedBatchNormExDynamic, self).__init__()
self.bn = P.FusedBatchNormEx(mode=1, epsilon=0.00001, momentum=0.1)
self.moving_mean = Parameter(initializer(mean_init, num_features),
name="mean",
requires_grad=False)
self.moving_variance = Parameter(initializer(var_init, num_features),
name="variance",
requires_grad=False)
self.gamma = Parameter(initializer(gamma_init, num_features),
name="gamma",
requires_grad=True)
self.beta = Parameter(initializer(beta_init, num_features),
name="beta",
requires_grad=True)
self.dynshape = inner.GpuConvertToDynamicShape()
def __init__(self,
num_features,
eps=1e-5,
momentum=0.9,
affine=True,
gamma_init='ones',
beta_init='zeros',
moving_mean_init='zeros',
moving_var_init='ones',
use_batch_statistics=None,
device_num_each_group=1,
input_dims='2d',
data_format='NCHW'):
super(_BatchNorm, self).__init__()
if num_features < 1:
raise ValueError("num_features must be at least 1")
if momentum < 0 or momentum > 1:
raise ValueError("momentum should be a number in range [0, 1], but got {}".format(momentum))
self.format = validator.check_string(data_format, ['NCHW', 'NHWC'], 'format', self.cls_name)
if context.get_context("device_target") != "GPU" and self.format == "NHWC":
raise ValueError("NHWC format only support in GPU target.")
self.use_batch_statistics = use_batch_statistics
self.num_features = num_features
self.eps = eps
self.input_dims = input_dims
self.moving_mean = Parameter(initializer(
moving_mean_init, num_features), name="mean", requires_grad=False)
self.moving_variance = Parameter(initializer(
moving_var_init, num_features), name="variance", requires_grad=False)
self.gamma = Parameter(initializer(
gamma_init, num_features), name="gamma", requires_grad=affine)
self.beta = Parameter(initializer(
beta_init, num_features), name="beta", requires_grad=affine)
self.group = validator.check_positive_int(device_num_each_group)
self.is_global = False
if self.group != 1:
self.rank_id = get_rank()
self.rank_size = get_group_size()
self.device_list = [i for i in range(0, self.rank_size)]
self.rank_list = self.list_group(self.device_list, self.group)
self.rank_list_idx = len(self.rank_list)
for i in range(self.rank_list_idx):
if self.rank_id in self.rank_list[i] and self.group != 1:
self.is_global = True
management.create_group('group' + str(i), self.rank_list[i])
self.all_reduce = P.AllReduce(P.ReduceOp.SUM, 'group' + str(i)).add_prim_attr('fusion', 1)
self.shape = P.Shape()
self.reduce_mean = P.ReduceMean(keep_dims=True)
self.square = P.Square()
self.sqrt = P.Sqrt()
self.cast = P.Cast()
self.dtype = P.DType()
self.reshape = P.Reshape()
self.is_ascend = context.get_context("device_target") == "Ascend"
self.is_gpu = context.get_context("device_target") == "GPU"
self.is_graph_mode = context.get_context("mode") == context.GRAPH_MODE
self.momentum = 1.0 - momentum
if context.get_context("enable_ge"):
self.is_ge_backend = True
else:
self.is_ge_backend = False
if self.is_graph_mode and (self.is_ge_backend or self.is_ascend):
self.bn_train = P.BatchNorm(is_training=True,
epsilon=self.eps)
elif self.is_gpu:
self.bn_train = P.FusedBatchNormEx(mode=1,
epsilon=self.eps,
momentum=self.momentum,
data_format=self.format)
else:
self.bn_train = P.FusedBatchNorm(mode=1,
epsilon=self.eps,
momentum=self.momentum)
self.bn_infer = P.BatchNorm(is_training=False, epsilon=self.eps, data_format=self.format)
self.enable_global_sync = self.is_global and (self.is_ge_backend or (self.is_graph_mode and self.is_ascend))
self.enable_default_train = self.is_graph_mode and not self.is_global and \
(self.is_ge_backend or self.is_ascend)
data_parallel_strategy = ((1,), (1,))
data_parallel_strategy_one = ((1,), ())
self.sub_mean = P.Sub().shard(data_parallel_strategy)
self.sub_var = P.Sub().shard(data_parallel_strategy)
self.mul_mean = P.Mul().shard(data_parallel_strategy_one)
self.mul_var = P.Mul().shard(data_parallel_strategy_one)
self.assign_sub_mean = P.AssignSub().shard(data_parallel_strategy)
self.assign_sub_var = P.AssignSub().shard(data_parallel_strategy)