def __init__(self, args):
super(TransformerDecoder, self).__init__()
self.layers_num = args.layers_num
self.layernorm_positioning = args.layernorm_positioning
self.relative_position_embedding = args.relative_position_embedding
self.transformer_decoder = nn.ModuleList(
[TransformerDecoderLayer(args) for _ in range(self.layers_num)]
)
if "deepspeed_checkpoint_activations" in args:
self.deepspeed_checkpoint_activations = args.deepspeed_checkpoint_activations
self.deepspeed_checkpoint_layers_num = args.deepspeed_checkpoint_layers_num
else:
self.deepspeed_checkpoint_activations = False
has_bias = bool(1 - args.remove_transformer_bias)
if self.layernorm_positioning == "pre":
if args.layernorm == "t5":
self.layer_norm = T5LayerNorm(args.hidden_size)
else:
self.layer_norm = LayerNorm(args.hidden_size)
if self.relative_position_embedding:
self.self_pos_emb = RelativePositionEmbedding(bidirectional=False, heads_num=args.heads_num,
num_buckets=args.relative_attention_buckets_num)
def __init__(self, args):
super(TransformerDecoder, self).__init__()
self.layers_num = args.layers_num
self.layernorm_positioning = args.layernorm_positioning
self.transformer_decoder = nn.ModuleList(
[TransformerDecoderLayer(args) for _ in range(self.layers_num)])
if self.layernorm_positioning == "pre":
self.layer_norm = LayerNorm(args.hidden_size)
def __init__(self, args):
super(TransformerDecoder, self).__init__()
self.layers_num = args.layers_num
self.layernorm_positioning = args.layernorm_positioning
self.relative_position_embedding = args.relative_position_embedding
self.transformer_decoder = nn.ModuleList(
[TransformerDecoderLayer(args) for _ in range(self.layers_num)])
if self.layernorm_positioning == "pre":
self.layer_norm = LayerNorm(args.hidden_size)
if self.relative_position_embedding:
self.relative_pos_emb = RelativePositionEmbedding(
bidirectional=False, heads_num=args.heads_num)
def __init__(self, args):
super(TransformerDecoder, self).__init__()
self.layers_num = args.layers_num
self.transformer_decoder = nn.ModuleList([
TransformerDecoderLayer(args) for _ in range(self.layers_num)
])