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Commit 5e56e563 authored by Neel Kant's avatar Neel Kant
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Merge master into realm-mlm

parents 6c0a5bd8 569b3dab
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Showing with 498 additions and 434 deletions
megatron/mpu/__init__.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......
megatron/mpu/cross_entropy.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -72,7 +72,6 @@ class _VocabParallelCrossEntropy(torch.autograd.Function):
op=torch.distributed.ReduceOp.SUM,
group=get_model_parallel_group())
# Loss = log(sum(exp(logits))) - predicted-logit.
loss = torch.log(sum_exp_logits) - predicted_logits
......
megatron/mpu/data.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......
megatron/mpu/grads.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -21,10 +21,52 @@
import torch
from torch._six import inf
from apex.multi_tensor_apply import multi_tensor_applier
import amp_C
from .initialize import get_model_parallel_group
from .initialize import get_model_parallel_rank
def l2_grad_clipper(parameters, max_norm):
"""Efficient L2 norm gradient clipping."""
overflow_buf = torch.zeros(1, dtype=torch.int, device='cuda')
# Make sure we have an iterable.
if isinstance(parameters, torch.Tensor):
parameters = [parameters]
# Filter parameters with gradients.
parameters_with_grads = list(filter(
lambda p: p.grad is not None, parameters))
# Filter parameters for norm calculations.
mp_rank_is_zero = (get_model_parallel_rank() == 0)
parameters_for_norm = list(filter(
lambda p: p.model_parallel or mp_rank_is_zero, parameters_with_grads))
# Calculate L2 norm.
norm, _ = multi_tensor_applier(
amp_C.multi_tensor_l2norm,
overflow_buf,
[parameters_for_norm],
False # no per-parameter norm
)
# Sum across all model parallel GPUs.
norm_2 = norm * norm
torch.distributed.all_reduce(norm_2,
op=torch.distributed.ReduceOp.SUM,
group=get_model_parallel_group())
total_norm = norm_2.item() ** 0.5
# Scale to get max_norm.
clip_coef = float(max_norm) / (total_norm + 1.0e-6)
grads = [p.grad for p in parameters_with_grads]
if clip_coef < 1.0:
multi_tensor_applier(
amp_C.multi_tensor_scale,
overflow_buf,
[grads, grads],
clip_coef)
return total_norm
def clip_grad_norm(parameters, max_norm, norm_type=2):
"""Clips gradient norm of an iterable of parameters.
......@@ -55,6 +97,13 @@ def clip_grad_norm(parameters, max_norm, norm_type=2):
op=torch.distributed.ReduceOp.MAX,
group=get_model_parallel_group())
total_norm = total_norm_cuda[0].item()
clip_coef = max_norm / (total_norm + 1e-6)
if clip_coef < 1:
for p in parameters:
p.grad.data.mul_(clip_coef)
#elif norm_type == 2:
# total_norm = l2_grad_clipper(parameters, max_norm)
else:
total_norm = 0
for p in parameters:
......@@ -67,8 +116,8 @@ def clip_grad_norm(parameters, max_norm, norm_type=2):
op=torch.distributed.ReduceOp.SUM,
group=get_model_parallel_group())
total_norm = total_norm_cuda[0].item() ** (1. / norm_type)
clip_coef = max_norm / (total_norm + 1e-6)
if clip_coef < 1:
for p in parameters:
p.grad.data.mul_(clip_coef)
clip_coef = max_norm / (total_norm + 1e-6)
if clip_coef < 1:
for p in parameters:
p.grad.data.mul_(clip_coef)
return total_norm
megatron/mpu/initialize.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......
megatron/mpu/layers.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -89,6 +89,7 @@ class VocabParallelEmbedding(torch.nn.Module):
embedding_dim: size of hidden state.
init_method: method to initialize weights.
"""
def __init__(self, num_embeddings, embedding_dim,
init_method=init.xavier_normal_):
super(VocabParallelEmbedding, self).__init__()
......@@ -108,7 +109,7 @@ class VocabParallelEmbedding(torch.nn.Module):
self.num_embeddings, get_model_parallel_rank(),
get_model_parallel_world_size())
self.num_embeddings_per_partition = self.vocab_end_index - \
self.vocab_start_index
self.vocab_start_index
# Allocate weights.
self.weight = Parameter(torch.Tensor(self.num_embeddings_per_partition,
......@@ -147,6 +148,7 @@ class ParallelEmbedding(torch.nn.Module):
embedding_dim: size of hidden state.
init_method: method to initialize weights.
"""
def __init__(self, num_embeddings, embedding_dim,
init_method=init.xavier_normal_,
keep_master_weight_for_test=False):
......@@ -205,6 +207,7 @@ class ColumnParallelLinear(torch.nn.Module):
set to False. It returns the master weights
used for initialization.
"""
def __init__(self, input_size, output_size, bias=True, gather_output=True,
init_method=init.xavier_normal_, stride=1,
keep_master_weight_for_test=False):
......@@ -279,6 +282,7 @@ class RowParallelLinear(torch.nn.Module):
set to False. It returns the master weights
used for initialization.
"""
def __init__(self, input_size, output_size, bias=True,
input_is_parallel=False,
init_method=init.xavier_normal_, stride=1,
......@@ -327,4 +331,3 @@ class RowParallelLinear(torch.nn.Module):
else:
output = output_
return output
megatron/mpu/mappings.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -131,11 +131,14 @@ class _GatherFromModelParallelRegion(torch.autograd.Function):
def copy_to_model_parallel_region(input_):
return _CopyToModelParallelRegion.apply(input_)
def reduce_from_model_parallel_region(input_):
return _ReduceFromModelParallelRegion.apply(input_)
def scatter_to_model_parallel_region(input_):
return _ScatterToModelParallelRegion.apply(input_)
def gather_from_model_parallel_region(input_):
return _GatherFromModelParallelRegion.apply(input_)
megatron/mpu/random.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -73,6 +73,7 @@ class CudaRNGStatesTracker:
rng state, we can perform operations and return to our starting
cuda state.
"""
def __init__(self):
# Map from a string name to the cuda rng state.
self.states_ = {}
......
megatron/mpu/tests/commons.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -26,6 +26,7 @@ class IdentityLayer(torch.nn.Module):
def __init__(self, size, scale=1.0):
super(IdentityLayer, self).__init__()
self.weight = torch.nn.Parameter(scale * torch.randn(size))
def forward(self):
return self.weight
......
megatron/mpu/tests/test_cross_entropy.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -13,20 +13,18 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from commons import set_random_seed
from commons import IdentityLayer
from commons import print_separator
from commons import initialize_distributed
from mpu.cross_entropy import vocab_parallel_cross_entropy
import mpu
import torch.nn.functional as F
import torch
import random
import sys
sys.path.append("../..")
import torch
import torch.nn.functional as F
import mpu
from mpu.cross_entropy import vocab_parallel_cross_entropy
from commons import initialize_distributed
from commons import print_separator
from commons import IdentityLayer
from commons import set_random_seed
def torch_cross_entropy(batch_size, seq_length, vocab_size,
logits_scale, seed):
......
megatron/mpu/tests/test_data.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -13,18 +13,16 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from commons import print_separator
from commons import initialize_distributed
from mpu import data as data_utils
import mpu
import torch
import functools
import operator
import sys
sys.path.append("../..")
import torch
import mpu
from mpu import data as data_utils
from commons import initialize_distributed
from commons import print_separator
def test_boradcast_data(model_parallel_size):
......@@ -88,5 +86,3 @@ if __name__ == '__main__':
print_separator('test test boradcast data')
test_boradcast_data(model_parallel_size)
model_parallel_size *= 2
megatron/mpu/tests/test_initialize.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -13,15 +13,13 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from commons import print_separator
from commons import initialize_distributed
import mpu
import torch
import sys
sys.path.append("../..")
import torch
import mpu
from commons import initialize_distributed
from commons import print_separator
def test_initialize_model_parallel(model_parallel_size):
......@@ -46,7 +44,6 @@ def test_initialize_model_parallel(model_parallel_size):
assert rank == mpu.get_model_parallel_rank()
check(mpu.get_model_parallel_group(), world_size, rank)
# Data parallel.
world_size = torch.distributed.get_world_size() // model_parallel_size_
rank = torch.distributed.get_rank() // model_parallel_size
......
megatron/mpu/tests/test_layers.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -13,20 +13,18 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from mpu import layers
from commons import set_random_seed
from commons import print_separator
from commons import initialize_distributed
import mpu
from torch.nn.parameter import Parameter
import torch.nn.init as init
import torch
import random
import sys
sys.path.append("../..")
import torch
import torch.nn.init as init
from torch.nn.parameter import Parameter
import mpu
from commons import initialize_distributed
from commons import print_separator
from commons import set_random_seed
from mpu import layers
def test_parallel_embedding(model_parallel_size):
......@@ -45,7 +43,7 @@ def test_parallel_embedding(model_parallel_size):
set_random_seed(123)
input_data = torch.LongTensor(
size=(batch_size,seq_length)).random_(0, vocab_size).cuda()
size=(batch_size, seq_length)).random_(0, vocab_size).cuda()
loss_weight = torch.randn([batch_size, seq_length, hidden_size]).cuda()
set_random_seed(seed)
......@@ -57,7 +55,7 @@ def test_parallel_embedding(model_parallel_size):
set_random_seed(seed)
embedding_parallel = layers.ParallelEmbedding(
vocab_size, hidden_size, init_method=init.normal_).cuda()
vocab_size, hidden_size, init_method=init.normal_).cuda()
output = embedding_parallel(input_data)
loss_parallel = torch.mul(output, loss_weight).sum()
loss_parallel.backward()
......@@ -176,10 +174,11 @@ def test_initialize_affine_weight(model_parallel_size):
class IdentityLayer2D(torch.nn.Module):
def __init__(self, m , n):
def __init__(self, m, n):
super(IdentityLayer2D, self).__init__()
self.weight = Parameter(torch.Tensor(m, n))
torch.nn.init.xavier_normal_(self.weight)
def forward(self):
return self.weight
......@@ -317,10 +316,11 @@ def test_row_parallel_linear(model_parallel_size):
class IdentityLayer3D(torch.nn.Module):
def __init__(self, m , n, k):
def __init__(self, m, n, k):
super(IdentityLayer3D, self).__init__()
self.weight = Parameter(torch.Tensor(m, n, k))
torch.nn.init.xavier_normal_(self.weight)
def forward(self):
return self.weight
......@@ -335,14 +335,14 @@ def parallel_self_attention(model_parallel_size, num_att_heads_per_partition,
set_random_seed(seed)
num_att_heads = num_att_heads_per_partition * \
torch.distributed.get_world_size()
torch.distributed.get_world_size()
hidden_size = hidden_size_per_att_head * num_att_heads
# Network
identity_layer = IdentityLayer3D(batch_size, sequence_length,
hidden_size).cuda()
attention_layer = mpu.BertParallelSelfAttention(hidden_size, num_att_heads,
dropout_prob).cuda()
dropout_prob).cuda()
loss_weight = torch.randn([batch_size, sequence_length, hidden_size]).cuda()
attention_mask = torch.randn([batch_size, 1, 1, sequence_length]).cuda()
# Forward
......@@ -366,17 +366,17 @@ def test_parallel_self_attention(model_parallel_size):
num_att_heads_per_partition = 3
hidden_size_per_att_head = 7
dropout_prob = 0.0 # has to be zero
dropout_prob = 0.0 # has to be zero
batch_size = 5
sequence_length = 13
rank_1, hideen_size_1, model_parallel_size_1, loss_1, \
attention_layer_1, identity_layer_1 =parallel_self_attention(
attention_layer_1, identity_layer_1 = parallel_self_attention(
1, num_att_heads_per_partition,
hidden_size_per_att_head, dropout_prob, batch_size, sequence_length)
rank, hidden_size, model_parallel_size, loss, \
attention_layer, identity_layer =parallel_self_attention(
attention_layer, identity_layer = parallel_self_attention(
model_parallel_size, num_att_heads_per_partition,
hidden_size_per_att_head, dropout_prob, batch_size, sequence_length)
assert hideen_size_1 == hidden_size
......@@ -409,6 +409,7 @@ def test_parallel_self_attention(model_parallel_size):
if torch.distributed.get_rank() == 0:
print(' >> passed the test :-)')
def parallel_transformer(model_parallel_size, num_att_heads_per_partition,
hidden_size_per_att_head, batch_size, sequence_length):
......@@ -419,7 +420,7 @@ def parallel_transformer(model_parallel_size, num_att_heads_per_partition,
set_random_seed(seed)
num_att_heads = num_att_heads_per_partition * \
torch.distributed.get_world_size()
torch.distributed.get_world_size()
hidden_size = hidden_size_per_att_head * num_att_heads
intermediate_size = 4 * hidden_size
......
megatron/mpu/tests/test_random.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -13,15 +13,13 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from commons import print_separator
from commons import initialize_distributed
import mpu
import torch
import sys
sys.path.append("../..")
import torch
import mpu
from commons import initialize_distributed
from commons import print_separator
def test_set_cuda_rng_state(model_parallel_size):
......@@ -204,4 +202,3 @@ if __name__ == '__main__':
print_separator('test model parallel cuda manual seed')
test_model_parallel_cuda_manual_seed(model_parallel_size)
model_parallel_size *= 2
megatron/mpu/utils.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......
megatron/text_generation_utils.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -42,8 +42,7 @@ def get_batch(context_tokens):
tokenizer.eod,
args.reset_position_ids,
args.reset_attention_mask,
args.eod_mask_loss,
args.fp16)
args.eod_mask_loss)
return tokens, attention_mask, position_ids
......@@ -120,8 +119,8 @@ def generate_samples_input_from_file(model):
context_length = len(context_tokens)
if context_length >= (args.seq_length // 2):
print("\nContext length", context_length, \
"\nPlease give smaller context (half of the "
print("\nContext length", context_length,
"\nPlease give smaller context (half of the "
"sequence length)!", flush=True)
continue
else:
......@@ -187,8 +186,8 @@ def generate_samples_interactive(model, print_frequency=24):
context_length = len(context_tokens)
if context_length >= (args.seq_length // 2):
print("\nContext length", context_length, \
"\nPlease give smaller context (half of the "
print("\nContext length", context_length,
"\nPlease give smaller context (half of the "
"sequence length)!", flush=True)
continue
else:
......@@ -246,7 +245,7 @@ def generate_samples_unconditional(model):
for token_stream in get_token_stream(model,
copy.deepcopy(context_tokens)):
pass
if ctr%args.log_interval == 0:
if ctr % args.log_interval == 0:
print('Avg s/batch:',
(time.time() - start_time) / min(args.log_interval, ctr + 1))
start_time = time.time()
......@@ -254,10 +253,10 @@ def generate_samples_unconditional(model):
token_batch = token_stream[0].cpu().numpy().tolist()
length_batch = token_stream[1].cpu().numpy().tolist()
for tokens, length in zip(token_batch, length_batch):
tokens = tokens[1:length-1]
tokens = tokens[1:length - 1]
text = tokenizer.detokenize(tokens)
is_finished = length < args.seq_length - 1
datum = {'text': text, 'length': length-1, 'finished': is_finished}
datum = {'text': text, 'length': length - 1, 'finished': is_finished}
yield datum
ctr += 1
if ctr >= num_samples:
......@@ -272,7 +271,7 @@ def generate_and_write_samples_unconditional(model):
assert args.genfile is not None
with open(args.genfile, 'w') as f:
for datum in generate_samples_unconditional(model):
f.write(json.dumps(datum)+'\n')
f.write(json.dumps(datum) + '\n')
def pad_batch(batch, pad_id, args):
......@@ -281,7 +280,7 @@ def pad_batch(batch, pad_id, args):
for tokens in batch:
context_length = len(tokens)
if context_length < args.seq_length:
tokens.extend([pad_id]*(args.seq_length - context_length))
tokens.extend([pad_id] * (args.seq_length - context_length))
context_lengths.append(context_length)
return batch, context_lengths
......@@ -345,7 +344,7 @@ def sample_sequence_batch(model, context_tokens, context_lengths,
if maxlen > (org_context_length + args.out_seq_length):
maxlen = org_context_length + args.out_seq_length
lengths = torch.ones([batch_size]).long().cuda()*maxlen
lengths = torch.ones([batch_size]).long().cuda() * maxlen
while context_length <= (maxlen):
......
megatron/tokenizer/__init__.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......
megatron/tokenizer/bert_tokenization.py
View file @ 5e56e563
......@@ -12,6 +12,7 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tokenization classes."""
from __future__ import absolute_import
......@@ -25,377 +26,377 @@ import six
def validate_case_matches_checkpoint(do_lower_case, init_checkpoint):
"""Checks whether the casing config is consistent with the checkpoint name."""
# The casing has to be passed in by the user and there is no explicit check
# as to whether it matches the checkpoint. The casing information probably
# should have been stored in the bert_config.json file, but it's not, so
# we have to heuristically detect it to validate.
if not init_checkpoint:
return
m = re.match("^.*?([A-Za-z0-9_-]+)/bert_model.ckpt", init_checkpoint)
if m is None:
return
model_name = m.group(1)
lower_models = [
"uncased_L-24_H-1024_A-16", "uncased_L-12_H-768_A-12",
"multilingual_L-12_H-768_A-12", "chinese_L-12_H-768_A-12"
]
cased_models = [
"cased_L-12_H-768_A-12", "cased_L-24_H-1024_A-16",
"multi_cased_L-12_H-768_A-12"
]
is_bad_config = False
if model_name in lower_models and not do_lower_case:
is_bad_config = True
actual_flag = "False"
case_name = "lowercased"
opposite_flag = "True"
if model_name in cased_models and do_lower_case:
is_bad_config = True
actual_flag = "True"
case_name = "cased"
opposite_flag = "False"
if is_bad_config:
raise ValueError(
"You passed in `--do_lower_case=%s` with `--init_checkpoint=%s`. "
"However, `%s` seems to be a %s model, so you "
"should pass in `--do_lower_case=%s` so that the fine-tuning matches "
"how the model was pre-training. If this error is wrong, please "
"just comment out this check." % (actual_flag, init_checkpoint,
model_name, case_name, opposite_flag))
"""Checks whether the casing config is consistent with the checkpoint name."""
# The casing has to be passed in by the user and there is no explicit check
# as to whether it matches the checkpoint. The casing information probably
# should have been stored in the bert_config.json file, but it's not, so
# we have to heuristically detect it to validate.
if not init_checkpoint:
return
m = re.match("^.*?([A-Za-z0-9_-]+)/bert_model.ckpt", init_checkpoint)
if m is None:
return
model_name = m.group(1)
lower_models = [
"uncased_L-24_H-1024_A-16", "uncased_L-12_H-768_A-12",
"multilingual_L-12_H-768_A-12", "chinese_L-12_H-768_A-12"
]
cased_models = [
"cased_L-12_H-768_A-12", "cased_L-24_H-1024_A-16",
"multi_cased_L-12_H-768_A-12"
]
is_bad_config = False
if model_name in lower_models and not do_lower_case:
is_bad_config = True
actual_flag = "False"
case_name = "lowercased"
opposite_flag = "True"
if model_name in cased_models and do_lower_case:
is_bad_config = True
actual_flag = "True"
case_name = "cased"
opposite_flag = "False"
if is_bad_config:
raise ValueError(
"You passed in `--do_lower_case=%s` with `--init_checkpoint=%s`. "
"However, `%s` seems to be a %s model, so you "
"should pass in `--do_lower_case=%s` so that the fine-tuning matches "
"how the model was pre-training. If this error is wrong, please "
"just comment out this check." % (actual_flag, init_checkpoint,
model_name, case_name, opposite_flag))
def convert_to_unicode(text):
"""Converts `text` to Unicode (if it's not already), assuming utf-8 input."""
if six.PY3:
if isinstance(text, str):
return text
elif isinstance(text, bytes):
return text.decode("utf-8", "ignore")
else:
raise ValueError("Unsupported string type: %s" % (type(text)))
elif six.PY2:
if isinstance(text, str):
return text.decode("utf-8", "ignore")
elif isinstance(text, unicode):
return text
"""Converts `text` to Unicode (if it's not already), assuming utf-8 input."""
if six.PY3:
if isinstance(text, str):
return text
elif isinstance(text, bytes):
return text.decode("utf-8", "ignore")
else:
raise ValueError("Unsupported string type: %s" % (type(text)))
elif six.PY2:
if isinstance(text, str):
return text.decode("utf-8", "ignore")
elif isinstance(text, unicode):
return text
else:
raise ValueError("Unsupported string type: %s" % (type(text)))
else:
raise ValueError("Unsupported string type: %s" % (type(text)))
else:
raise ValueError("Not running on Python2 or Python 3?")
raise ValueError("Not running on Python2 or Python 3?")
def printable_text(text):
"""Returns text encoded in a way suitable for print or `tf.logging`."""
# These functions want `str` for both Python2 and Python3, but in one case
# it's a Unicode string and in the other it's a byte string.
if six.PY3:
if isinstance(text, str):
return text
elif isinstance(text, bytes):
return text.decode("utf-8", "ignore")
"""Returns text encoded in a way suitable for print or `tf.logging`."""
# These functions want `str` for both Python2 and Python3, but in one case
# it's a Unicode string and in the other it's a byte string.
if six.PY3:
if isinstance(text, str):
return text
elif isinstance(text, bytes):
return text.decode("utf-8", "ignore")
else:
raise ValueError("Unsupported string type: %s" % (type(text)))
elif six.PY2:
if isinstance(text, str):
return text
elif isinstance(text, unicode):
return text.encode("utf-8")
else:
raise ValueError("Unsupported string type: %s" % (type(text)))
else:
raise ValueError("Unsupported string type: %s" % (type(text)))
elif six.PY2:
if isinstance(text, str):
return text
elif isinstance(text, unicode):
return text.encode("utf-8")
else:
raise ValueError("Unsupported string type: %s" % (type(text)))
else:
raise ValueError("Not running on Python2 or Python 3?")
raise ValueError("Not running on Python2 or Python 3?")
def load_vocab(vocab_file):
"""Loads a vocabulary file into a dictionary."""
vocab = collections.OrderedDict()
index = 0
with open(vocab_file, "r") as reader:
while True:
token = convert_to_unicode(reader.readline())
if not token:
break
token = token.strip()
vocab[token] = index
index += 1
return vocab
"""Loads a vocabulary file into a dictionary."""
vocab = collections.OrderedDict()
index = 0
with open(vocab_file, "r") as reader:
while True:
token = convert_to_unicode(reader.readline())
if not token:
break
token = token.strip()
vocab[token] = index
index += 1
return vocab
def convert_by_vocab(vocab, items):
"""Converts a sequence of [tokens|ids] using the vocab."""
output = []
for item in items:
output.append(vocab[item])
return output
"""Converts a sequence of [tokens|ids] using the vocab."""
output = []
for item in items:
output.append(vocab[item])
return output
def convert_tokens_to_ids(vocab, tokens):
return convert_by_vocab(vocab, tokens)
return convert_by_vocab(vocab, tokens)
def convert_ids_to_tokens(inv_vocab, ids):
return convert_by_vocab(inv_vocab, ids)
return convert_by_vocab(inv_vocab, ids)
def whitespace_tokenize(text):
"""Runs basic whitespace cleaning and splitting on a piece of text."""
text = text.strip()
if not text:
return []
tokens = text.split()
return tokens
"""Runs basic whitespace cleaning and splitting on a piece of text."""
text = text.strip()
if not text:
return []
tokens = text.split()
return tokens
class FullTokenizer(object):
"""Runs end-to-end tokenziation."""
"""Runs end-to-end tokenziation."""
def __init__(self, vocab_file, do_lower_case=True):
self.vocab = load_vocab(vocab_file)
self.inv_vocab = {v: k for k, v in self.vocab.items()}
self.basic_tokenizer = BasicTokenizer(do_lower_case=do_lower_case)
self.wordpiece_tokenizer = WordpieceTokenizer(vocab=self.vocab)
def __init__(self, vocab_file, do_lower_case=True):
self.vocab = load_vocab(vocab_file)
self.inv_vocab = {v: k for k, v in self.vocab.items()}
self.basic_tokenizer = BasicTokenizer(do_lower_case=do_lower_case)
self.wordpiece_tokenizer = WordpieceTokenizer(vocab=self.vocab)
def tokenize(self, text):
split_tokens = []
for token in self.basic_tokenizer.tokenize(text):
for sub_token in self.wordpiece_tokenizer.tokenize(token):
split_tokens.append(sub_token)
def tokenize(self, text):
split_tokens = []
for token in self.basic_tokenizer.tokenize(text):
for sub_token in self.wordpiece_tokenizer.tokenize(token):
split_tokens.append(sub_token)
return split_tokens
return split_tokens
def convert_tokens_to_ids(self, tokens):
return convert_by_vocab(self.vocab, tokens)
def convert_tokens_to_ids(self, tokens):
return convert_by_vocab(self.vocab, tokens)
def convert_ids_to_tokens(self, ids):
return convert_by_vocab(self.inv_vocab, ids)
def convert_ids_to_tokens(self, ids):
return convert_by_vocab(self.inv_vocab, ids)
def vocab_size(self):
return len(self.vocab)
def vocab_size(self):
return len(self.vocab)
class BasicTokenizer(object):
"""Runs basic tokenization (punctuation splitting, lower casing, etc.)."""
def __init__(self, do_lower_case=True):
"""Constructs a BasicTokenizer.
Args:
do_lower_case: Whether to lower case the input.
"""
self.do_lower_case = do_lower_case
def tokenize(self, text):
"""Tokenizes a piece of text."""
text = convert_to_unicode(text)
text = self._clean_text(text)
# This was added on November 1st, 2018 for the multilingual and Chinese
# models. This is also applied to the English models now, but it doesn't
# matter since the English models were not trained on any Chinese data
# and generally don't have any Chinese data in them (there are Chinese
# characters in the vocabulary because Wikipedia does have some Chinese
# words in the English Wikipedia.).
text = self._tokenize_chinese_chars(text)
orig_tokens = whitespace_tokenize(text)
split_tokens = []
for token in orig_tokens:
if self.do_lower_case:
token = token.lower()
token = self._run_strip_accents(token)
split_tokens.extend(self._run_split_on_punc(token))
output_tokens = whitespace_tokenize(" ".join(split_tokens))
return output_tokens
def _run_strip_accents(self, text):
"""Strips accents from a piece of text."""
text = unicodedata.normalize("NFD", text)
output = []
for char in text:
cat = unicodedata.category(char)
if cat == "Mn":
continue
output.append(char)
return "".join(output)
def _run_split_on_punc(self, text):
"""Splits punctuation on a piece of text."""
chars = list(text)
i = 0
start_new_word = True
output = []
while i < len(chars):
char = chars[i]
if _is_punctuation(char):
output.append([char])
"""Runs basic tokenization (punctuation splitting, lower casing, etc.)."""
def __init__(self, do_lower_case=True):
"""Constructs a BasicTokenizer.
Args:
do_lower_case: Whether to lower case the input.
"""
self.do_lower_case = do_lower_case
def tokenize(self, text):
"""Tokenizes a piece of text."""
text = convert_to_unicode(text)
text = self._clean_text(text)
# This was added on November 1st, 2018 for the multilingual and Chinese
# models. This is also applied to the English models now, but it doesn't
# matter since the English models were not trained on any Chinese data
# and generally don't have any Chinese data in them (there are Chinese
# characters in the vocabulary because Wikipedia does have some Chinese
# words in the English Wikipedia.).
text = self._tokenize_chinese_chars(text)
orig_tokens = whitespace_tokenize(text)
split_tokens = []
for token in orig_tokens:
if self.do_lower_case:
token = token.lower()
token = self._run_strip_accents(token)
split_tokens.extend(self._run_split_on_punc(token))
output_tokens = whitespace_tokenize(" ".join(split_tokens))
return output_tokens
def _run_strip_accents(self, text):
"""Strips accents from a piece of text."""
text = unicodedata.normalize("NFD", text)
output = []
for char in text:
cat = unicodedata.category(char)
if cat == "Mn":
continue
output.append(char)
return "".join(output)
def _run_split_on_punc(self, text):
"""Splits punctuation on a piece of text."""
chars = list(text)
i = 0
start_new_word = True
else:
if start_new_word:
output.append([])
start_new_word = False
output[-1].append(char)
i += 1
return ["".join(x) for x in output]
def _tokenize_chinese_chars(self, text):
"""Adds whitespace around any CJK character."""
output = []
for char in text:
cp = ord(char)
if self._is_chinese_char(cp):
output.append(" ")
output.append(char)
output.append(" ")
else:
output.append(char)
return "".join(output)
def _is_chinese_char(self, cp):
"""Checks whether CP is the codepoint of a CJK character."""
# This defines a "chinese character" as anything in the CJK Unicode block:
# https://en.wikipedia.org/wiki/CJK_Unified_Ideographs_(Unicode_block)
#
# Note that the CJK Unicode block is NOT all Japanese and Korean characters,
# despite its name. The modern Korean Hangul alphabet is a different block,
# as is Japanese Hiragana and Katakana. Those alphabets are used to write
# space-separated words, so they are not treated specially and handled
# like the all of the other languages.
if ((cp >= 0x4E00 and cp <= 0x9FFF) or #
(cp >= 0x3400 and cp <= 0x4DBF) or #
(cp >= 0x20000 and cp <= 0x2A6DF) or #
(cp >= 0x2A700 and cp <= 0x2B73F) or #
(cp >= 0x2B740 and cp <= 0x2B81F) or #
(cp >= 0x2B820 and cp <= 0x2CEAF) or
(cp >= 0xF900 and cp <= 0xFAFF) or #
(cp >= 0x2F800 and cp <= 0x2FA1F)): #
return True
return False
def _clean_text(self, text):
"""Performs invalid character removal and whitespace cleanup on text."""
output = []
for char in text:
cp = ord(char)
if cp == 0 or cp == 0xfffd or _is_control(char):
continue
if _is_whitespace(char):
output.append(" ")
else:
output.append(char)
return "".join(output)
output = []
while i < len(chars):
char = chars[i]
if _is_punctuation(char):
output.append([char])
start_new_word = True
else:
if start_new_word:
output.append([])
start_new_word = False
output[-1].append(char)
i += 1
return ["".join(x) for x in output]
def _tokenize_chinese_chars(self, text):
"""Adds whitespace around any CJK character."""
output = []
for char in text:
cp = ord(char)
if self._is_chinese_char(cp):
output.append(" ")
output.append(char)
output.append(" ")
else:
output.append(char)
return "".join(output)
def _is_chinese_char(self, cp):
"""Checks whether CP is the codepoint of a CJK character."""
# This defines a "chinese character" as anything in the CJK Unicode block:
# https://en.wikipedia.org/wiki/CJK_Unified_Ideographs_(Unicode_block)
#
# Note that the CJK Unicode block is NOT all Japanese and Korean characters,
# despite its name. The modern Korean Hangul alphabet is a different block,
# as is Japanese Hiragana and Katakana. Those alphabets are used to write
# space-separated words, so they are not treated specially and handled
# like the all of the other languages.
if ((cp >= 0x4E00 and cp <= 0x9FFF) or #
(cp >= 0x3400 and cp <= 0x4DBF) or #
(cp >= 0x20000 and cp <= 0x2A6DF) or #
(cp >= 0x2A700 and cp <= 0x2B73F) or #
(cp >= 0x2B740 and cp <= 0x2B81F) or #
(cp >= 0x2B820 and cp <= 0x2CEAF) or
(cp >= 0xF900 and cp <= 0xFAFF) or #
(cp >= 0x2F800 and cp <= 0x2FA1F)): #
return True
return False
def _clean_text(self, text):
"""Performs invalid character removal and whitespace cleanup on text."""
output = []
for char in text:
cp = ord(char)
if cp == 0 or cp == 0xfffd or _is_control(char):
continue
if _is_whitespace(char):
output.append(" ")
else:
output.append(char)
return "".join(output)
class WordpieceTokenizer(object):
"""Runs WordPiece tokenziation."""
def __init__(self, vocab, unk_token="[UNK]", max_input_chars_per_word=200):
self.vocab = vocab
self.unk_token = unk_token
self.max_input_chars_per_word = max_input_chars_per_word
def tokenize(self, text):
"""Tokenizes a piece of text into its word pieces.
This uses a greedy longest-match-first algorithm to perform tokenization
using the given vocabulary.
For example:
input = "unaffable"
output = ["un", "##aff", "##able"]
Args:
text: A single token or whitespace separated tokens. This should have
already been passed through `BasicTokenizer.
Returns:
A list of wordpiece tokens.
"""
text = convert_to_unicode(text)
output_tokens = []
for token in whitespace_tokenize(text):
chars = list(token)
if len(chars) > self.max_input_chars_per_word:
output_tokens.append(self.unk_token)
continue
is_bad = False
start = 0
sub_tokens = []
while start < len(chars):
end = len(chars)
cur_substr = None
while start < end:
substr = "".join(chars[start:end])
if start > 0:
substr = "##" + substr
if substr in self.vocab:
cur_substr = substr
break
end -= 1
if cur_substr is None:
is_bad = True
break
sub_tokens.append(cur_substr)
start = end
if is_bad:
output_tokens.append(self.unk_token)
else:
output_tokens.extend(sub_tokens)
return output_tokens
"""Runs WordPiece tokenziation."""
def __init__(self, vocab, unk_token="[UNK]", max_input_chars_per_word=200):
self.vocab = vocab
self.unk_token = unk_token
self.max_input_chars_per_word = max_input_chars_per_word
def tokenize(self, text):
"""Tokenizes a piece of text into its word pieces.
This uses a greedy longest-match-first algorithm to perform tokenization
using the given vocabulary.
For example:
input = "unaffable"
output = ["un", "##aff", "##able"]
Args:
text: A single token or whitespace separated tokens. This should have
already been passed through `BasicTokenizer.
Returns:
A list of wordpiece tokens.
"""
text = convert_to_unicode(text)
output_tokens = []
for token in whitespace_tokenize(text):
chars = list(token)
if len(chars) > self.max_input_chars_per_word:
output_tokens.append(self.unk_token)
continue
is_bad = False
start = 0
sub_tokens = []
while start < len(chars):
end = len(chars)
cur_substr = None
while start < end:
substr = "".join(chars[start:end])
if start > 0:
substr = "##" + substr
if substr in self.vocab:
cur_substr = substr
break
end -= 1
if cur_substr is None:
is_bad = True
break
sub_tokens.append(cur_substr)
start = end
if is_bad:
output_tokens.append(self.unk_token)
else:
output_tokens.extend(sub_tokens)
return output_tokens
def _is_whitespace(char):
"""Checks whether `chars` is a whitespace character."""
# \t, \n, and \r are technically contorl characters but we treat them
# as whitespace since they are generally considered as such.
if char == " " or char == "\t" or char == "\n" or char == "\r":
return True
cat = unicodedata.category(char)
if cat == "Zs":
return True
return False
"""Checks whether `chars` is a whitespace character."""
# \t, \n, and \r are technically contorl characters but we treat them
# as whitespace since they are generally considered as such.
if char == " " or char == "\t" or char == "\n" or char == "\r":
return True
cat = unicodedata.category(char)
if cat == "Zs":
return True
return False
def _is_control(char):
"""Checks whether `chars` is a control character."""
# These are technically control characters but we count them as whitespace
# characters.
if char == "\t" or char == "\n" or char == "\r":
"""Checks whether `chars` is a control character."""
# These are technically control characters but we count them as whitespace
# characters.
if char == "\t" or char == "\n" or char == "\r":
return False
cat = unicodedata.category(char)
if cat in ("Cc", "Cf"):
return True
return False
cat = unicodedata.category(char)
if cat in ("Cc", "Cf"):
return True
return False
def _is_punctuation(char):
"""Checks whether `chars` is a punctuation character."""
cp = ord(char)
# We treat all non-letter/number ASCII as punctuation.
# Characters such as "^", "$", and "`" are not in the Unicode
# Punctuation class but we treat them as punctuation anyways, for
# consistency.
if ((cp >= 33 and cp <= 47) or (cp >= 58 and cp <= 64) or
(cp >= 91 and cp <= 96) or (cp >= 123 and cp <= 126)):
return True
cat = unicodedata.category(char)
if cat.startswith("P"):
return True
return False
"""Checks whether `chars` is a punctuation character."""
cp = ord(char)
# We treat all non-letter/number ASCII as punctuation.
# Characters such as "^", "$", and "`" are not in the Unicode
# Punctuation class but we treat them as punctuation anyways, for
# consistency.
if ((cp >= 33 and cp <= 47) or (cp >= 58 and cp <= 64) or
(cp >= 91 and cp <= 96) or (cp >= 123 and cp <= 126)):
return True
cat = unicodedata.category(char)
if cat.startswith("P"):
return True
return False
megatron/tokenizer/gpt2_tokenization.py
View file @ 5e56e563
......@@ -29,7 +29,8 @@ try:
from functools import lru_cache
except ImportError:
# Just a dummy decorator to get the checks to run on python2
# because honestly I don't want to support a byte-level unicode BPE tokenizer on python 2 right now.
# because honestly I don't want to support a byte-level unicode BPE
# tokenizer on python 2 right now.
def lru_cache():
return lambda func: func
......@@ -49,6 +50,7 @@ VOCAB_NAME = 'vocab.json'
MERGES_NAME = 'merges.txt'
SPECIAL_TOKENS_NAME = 'special_tokens.txt'
@lru_cache()
def bytes_to_unicode():
"""
......@@ -61,17 +63,19 @@ def bytes_to_unicode():
And avoids mapping to whitespace/control characters the bpe code barfs on.
"""
_chr = unichr if sys.version_info[0] == 2 else chr
bs = list(range(ord("!"), ord("~")+1))+list(range(ord("¡"), ord("¬")+1))+list(range(ord("®"), ord("ÿ")+1))
bs = list(range(ord("!"), ord("~") + 1)) + list(range(ord("¡"), ord("¬") + 1)) + \
list(range(ord("®"), ord("ÿ") + 1))
cs = bs[:]
n = 0
for b in range(2**8):
if b not in bs:
bs.append(b)
cs.append(2**8+n)
cs.append(2**8 + n)
n += 1
cs = [_chr(n) for n in cs]
return dict(zip(bs, cs))
def get_pairs(word):
"""Return set of symbol pairs in a word.
......@@ -84,6 +88,7 @@ def get_pairs(word):
prev_char = char
return pairs
class GPT2Tokenizer(object):
"""
GPT-2 BPE tokenizer. Peculiarities:
......@@ -140,23 +145,31 @@ class GPT2Tokenizer(object):
special_tokens = open(special_tokens_file, encoding='utf-8').read().split('\n')[:-1]
else:
special_tokens = kwargs.pop('special_tokens', [])
tokenizer = cls(resolved_vocab_file, resolved_merges_file, special_tokens=special_tokens, *inputs, **kwargs)
tokenizer = cls(
resolved_vocab_file,
resolved_merges_file,
special_tokens=special_tokens,
*inputs,
**kwargs)
return tokenizer
def __init__(self, vocab_file, merges_file, errors='replace', special_tokens=None, max_len=None):
def __init__(self, vocab_file, merges_file, errors='replace',
special_tokens=None, max_len=None):
self.max_len = max_len if max_len is not None else int(1e12)
self.encoder = json.load(open(vocab_file))
self.decoder = {v:k for k,v in self.encoder.items()}
self.errors = errors # how to handle errors in decoding
self.decoder = {v: k for k, v in self.encoder.items()}
self.errors = errors # how to handle errors in decoding
self.byte_encoder = bytes_to_unicode()
self.byte_decoder = {v:k for k, v in self.byte_encoder.items()}
self.byte_decoder = {v: k for k, v in self.byte_encoder.items()}
bpe_data = open(merges_file, encoding='utf-8').read().split('\n')[1:-1]
bpe_merges = [tuple(merge.split()) for merge in bpe_data]
self.bpe_ranks = dict(zip(bpe_merges, range(len(bpe_merges))))
self.cache = {}
# Should haved added re.IGNORECASE so BPE merges can happen for capitalized versions of contractions
self.pat = re.compile(r"""'s|'t|'re|'ve|'m|'ll|'d| ?\p{L}+| ?\p{N}+| ?[^\s\p{L}\p{N}]+|\s+(?!\S)|\s+""")
# Should haved added re.IGNORECASE so BPE merges can happen for
# capitalized versions of contractions
self.pat = re.compile(
r"""'s|'t|'re|'ve|'m|'ll|'d| ?\p{L}+| ?\p{N}+| ?[^\s\p{L}\p{N}]+|\s+(?!\S)|\s+""")
self.special_tokens = {}
self.special_tokens_decoder = {}
......@@ -174,8 +187,9 @@ class GPT2Tokenizer(object):
self.special_tokens = {}
self.special_tokens_decoder = {}
return
self.special_tokens = dict((tok, len(self.encoder) + i) for i, tok in enumerate(special_tokens))
self.special_tokens_decoder = {v:k for k, v in self.special_tokens.items()}
self.special_tokens = dict((tok, len(self.encoder) + i)
for i, tok in enumerate(special_tokens))
self.special_tokens_decoder = {v: k for k, v in self.special_tokens.items()}
logger.info("Special tokens {}".format(self.special_tokens))
def bpe(self, token):
......@@ -188,7 +202,7 @@ class GPT2Tokenizer(object):
return token
while True:
bigram = min(pairs, key = lambda pair: self.bpe_ranks.get(pair, float('inf')))
bigram = min(pairs, key=lambda pair: self.bpe_ranks.get(pair, float('inf')))
if bigram not in self.bpe_ranks:
break
first, second = bigram
......@@ -199,12 +213,12 @@ class GPT2Tokenizer(object):
j = word.index(first, i)
new_word.extend(word[i:j])
i = j
except:
except BaseException:
new_word.extend(word[i:])
break
if word[i] == first and i < len(word)-1 and word[i+1] == second:
new_word.append(first+second)
if word[i] == first and i < len(word) - 1 and word[i + 1] == second:
new_word.append(first + second)
i += 2
else:
new_word.append(word[i])
......@@ -247,7 +261,8 @@ class GPT2Tokenizer(object):
logger.warning(
"Token indices sequence length is longer than the specified maximum "
" sequence length for this OpenAI GPT model ({} > {}). Running this"
" sequence through the model will result in indexing errors".format(len(ids), self.max_len)
" sequence through the model will result in indexing errors".format(
len(ids), self.max_len)
)
return ids
......
megatron/tokenizer/tokenizer.py
View file @ 5e56e563
# coding=utf-8
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
......@@ -33,6 +33,9 @@ def build_tokenizer(args):
if args.tokenizer_type == 'BertWordPieceLowerCase':
tokenizer = _BertWordPieceTokenizer(vocab_file=args.vocab_file,
lower_case=True)
elif args.tokenizer_type == 'BertWordPieceCase':
tokenizer = _BertWordPieceTokenizer(vocab_file=args.vocab_file,
lower_case=False)
elif args.tokenizer_type == 'GPT2BPETokenizer':
assert args.merge_file is not None
tokenizer = _GPT2BPETokenizer(args.vocab_file, args.merge_file)
......@@ -53,7 +56,7 @@ def _vocab_size_with_padding(orig_vocab_size, args):
after = orig_vocab_size
multiple = args.make_vocab_size_divisible_by * \
args.model_parallel_size
args.model_parallel_size
while (after % multiple) != 0:
after += 1
if args.rank == 0:
......@@ -134,7 +137,7 @@ class _BertWordPieceTokenizer(AbstractTokenizer):
self.cls_id = self.tokenizer.vocab['[CLS]']
self.sep_id = self.tokenizer.vocab['[SEP]']
self.pad_id = self.tokenizer.vocab['[PAD]']
self.mask_id = self.tokenizer.vocab['[MASK]']
self.mask_id = self.tokenizer.vocab['[MASK]']
@property
def vocab_size(self):
......@@ -168,6 +171,7 @@ class _BertWordPieceTokenizer(AbstractTokenizer):
def mask(self):
return self.mask_id
class _GPT2BPETokenizer(AbstractTokenizer):
"""Original GPT2 BPE tokenizer."""
......
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