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tinybert script suit for gpu

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pull/4187/head
hanhuifeng2020 5 years ago
parent 0a1fac9246
commit 1756d084ab
8 changed files with 272 additions and 40 deletions
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4
model_zoo/official/nlp/tinybert/README.md
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@ -46,7 +46,7 @@ usage: run_standalone_gd.py [--distribute DISTRIBUTE] [--device_target DEVICE_T
options:
--distribute whether to run distributely: "true" | "false"
--device_target target device to run, currently only support "Ascend"
--device_target targeted device to run task: "Ascend" | "GPU"
--epoch_size epoch size: N, default is 1
--device_id device id: N, default is 0
--enable_data_sink enable data sink: "true" | "false", default is "true"
@ -64,7 +64,7 @@ usage: run_distribute_gd.py [--distribute DISTRIBUTE] [--device_target DEVICE_T
options:
--distribute whether to run distributely: "true" | "false"
--device_target target device to run, currently only support "Ascend"
--device_target targeted device to run task: "Ascend" | "GPU"
--epoch_size epoch size: N, default is 1
--device_id device id: N, default is 0
--device_num device id to run task

53
model_zoo/official/nlp/tinybert/run_general_distill.py
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@ -20,16 +20,20 @@ import argparse
import datetime
import numpy
import mindspore.communication.management as D
import mindspore.common.dtype as mstype
from mindspore import context
from mindspore.train.model import Model
from mindspore.train.callback import TimeMonitor
from mindspore.train.parallel_utils import ParallelMode
from mindspore.nn.optim import AdamWeightDecay
from mindspore.nn.wrap.loss_scale import DynamicLossScaleUpdateCell
from mindspore import log as logger
from src.dataset import create_tinybert_dataset
from src.utils import LossCallBack, ModelSaveCkpt, BertLearningRate
from src.gd_config import common_cfg, bert_teacher_net_cfg, bert_student_net_cfg
from src.tinybert_for_gd_td import BertTrainWithLossScaleCell, BertNetworkWithLoss_gd
from src.tinybert_for_gd_td import BertTrainWithLossScaleCell, BertNetworkWithLoss_gd, BertTrainCell
def run_general_distill():
"""
@ -53,7 +57,6 @@ def run_general_distill():
parser.add_argument("--schema_dir", type=str, default="", help="Schema path, it is better to use absolute path")
args_opt = parser.parse_args()
context.set_context(mode=context.GRAPH_MODE, device_target=args_opt.device_target, device_id=args_opt.device_id)
context.set_context(mode=context.GRAPH_MODE, device_target=args_opt.device_target, device_id=args_opt.device_id)
context.set_context(reserve_class_name_in_scope=False)
context.set_context(variable_memory_max_size="30GB")
@ -61,13 +64,17 @@ def run_general_distill():
save_ckpt_dir = os.path.join(args_opt.save_ckpt_path,
datetime.datetime.now().strftime('%Y-%m-%d_time_%H_%M_%S'))
if not os.path.exists(save_ckpt_dir):
os.makedirs(save_ckpt_dir)
if args_opt.distribute == "true":
D.init('hccl')
device_num = args_opt.device_num
rank = args_opt.device_id % device_num
if args_opt.device_target == 'Ascend':
D.init('hccl')
device_num = args_opt.device_num
rank = args_opt.device_id % device_num
else:
D.init('nccl')
device_num = D.get_group_size()
rank = D.get_rank()
save_ckpt_dir = save_ckpt_dir + '_ckpt_' + str(rank)
context.reset_auto_parallel_context()
context.set_auto_parallel_context(parallel_mode=ParallelMode.DATA_PARALLEL, mirror_mean=True,
device_num=device_num)
@ -75,6 +82,21 @@ def run_general_distill():
rank = 0
device_num = 1
if not os.path.exists(save_ckpt_dir):
os.makedirs(save_ckpt_dir)
enable_loss_scale = True
if args_opt.device_target == "GPU":
if bert_teacher_net_cfg.compute_type != mstype.float32:
logger.warning('GPU only support fp32 temporarily, run with fp32.')
bert_teacher_net_cfg.compute_type = mstype.float32
if bert_student_net_cfg.compute_type != mstype.float32:
logger.warning('GPU only support fp32 temporarily, run with fp32.')
bert_student_net_cfg.compute_type = mstype.float32
# Both the forward and backward of the network are calculated using fp32,
# and the loss scale is not necessary
enable_loss_scale = False
netwithloss = BertNetworkWithLoss_gd(teacher_config=bert_teacher_net_cfg,
teacher_ckpt=args_opt.load_teacher_ckpt_path,
student_config=bert_student_net_cfg,
@ -82,11 +104,11 @@ def run_general_distill():
dataset = create_tinybert_dataset('gd', bert_teacher_net_cfg.batch_size, device_num, rank,
args_opt.do_shuffle, args_opt.data_dir, args_opt.schema_dir)
dataset_size = dataset.get_dataset_size()
print('dataset size: ', dataset_size)
print("dataset repeatcount: ", dataset.get_repeat_count())
if args_opt.enable_data_sink == "true":
repeat_count = args_opt.epoch_size * dataset.get_dataset_size() // args_opt.data_sink_steps
repeat_count = args_opt.epoch_size * dataset_size // args_opt.data_sink_steps
time_monitor_steps = args_opt.data_sink_steps
else:
repeat_count = args_opt.epoch_size
@ -110,12 +132,13 @@ def run_general_distill():
args_opt.save_ckpt_step,
args_opt.max_ckpt_num,
save_ckpt_dir)]
update_cell = DynamicLossScaleUpdateCell(loss_scale_value=common_cfg.loss_scale_value,
scale_factor=common_cfg.scale_factor,
scale_window=common_cfg.scale_window)
netwithgrads = BertTrainWithLossScaleCell(netwithloss, optimizer=optimizer, scale_update_cell=update_cell)
if enable_loss_scale:
update_cell = DynamicLossScaleUpdateCell(loss_scale_value=common_cfg.loss_scale_value,
scale_factor=common_cfg.scale_factor,
scale_window=common_cfg.scale_window)
netwithgrads = BertTrainWithLossScaleCell(netwithloss, optimizer=optimizer, scale_update_cell=update_cell)
else:
netwithgrads = BertTrainCell(netwithloss, optimizer=optimizer)
model = Model(netwithgrads)
model.train(repeat_count, dataset, callbacks=callback,
dataset_sink_mode=(args_opt.enable_data_sink == "true"),

96
model_zoo/official/nlp/tinybert/run_task_distill.py
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@ -18,6 +18,7 @@
import os
import re
import argparse
import mindspore.common.dtype as mstype
from mindspore import Tensor
from mindspore import context
from mindspore.train.model import Model
@ -25,11 +26,12 @@ from mindspore.train.callback import TimeMonitor
from mindspore.train.serialization import load_checkpoint, load_param_into_net
from mindspore.nn.wrap.loss_scale import DynamicLossScaleUpdateCell
from mindspore.nn.optim import AdamWeightDecay
from mindspore import log as logger
from src.dataset import create_tinybert_dataset
from src.utils import LossCallBack, ModelSaveCkpt, EvalCallBack, BertLearningRate
from src.assessment_method import Accuracy
from src.td_config import phase1_cfg, phase2_cfg, td_teacher_net_cfg, td_student_net_cfg
from src.tinybert_for_gd_td import BertEvaluationCell, BertNetworkWithLoss_td
from src.tinybert_for_gd_td import BertEvaluationWithLossScaleCell, BertNetworkWithLoss_td, BertEvaluationCell
from src.tinybert_model import BertModelCLS
_cur_dir = os.getcwd()
@ -45,14 +47,14 @@ def parse_args():
parse args
"""
parser = argparse.ArgumentParser(description='tinybert task distill')
parser.add_argument("--device_target", type=str, default="Ascend", help="NPU device, default is Ascend.")
parser.add_argument("--device_target", type=str, default="Ascend", choices=['Ascend', 'GPU'],
help='device where the code will be implemented. (Default: Ascend)')
parser.add_argument("--do_train", type=str, default="true", help="Do train task, default is true.")
parser.add_argument("--do_eval", type=str, default="true", help="Do eval task, default is true.")
parser.add_argument("--td_phase1_epoch_size", type=int, default=10,
help="Epoch size for td phase 1, default is 10.")
parser.add_argument("--td_phase2_epoch_size", type=int, default=3, help="Epoch size for td phase 2, default is 3.")
parser.add_argument("--device_id", type=int, default=0, help="Device id, default is 0.")
parser.add_argument("--num_labels", type=int, default=2, help="Classfication task, support SST2, QNLI, MNLI.")
parser.add_argument("--do_shuffle", type=str, default="true", help="Enable shuffle for dataset, default is true.")
parser.add_argument("--enable_data_sink", type=str, default="true", help="Enable data sink, default is true.")
parser.add_argument("--save_ckpt_step", type=int, default=100, help="Enable data sink, default is true.")
@ -64,11 +66,43 @@ def parse_args():
parser.add_argument("--train_data_dir", type=str, default="", help="Data path, it is better to use absolute path")
parser.add_argument("--eval_data_dir", type=str, default="", help="Data path, it is better to use absolute path")
parser.add_argument("--schema_dir", type=str, default="", help="Schema path, it is better to use absolute path")
parser.add_argument("--task_name", type=str, default="", choices=["SST-2", "QNLI", "MNLI"],
help="The name of the task to train.")
args = parser.parse_args()
return args
args_opt = parse_args()
DEFAULT_NUM_LABELS = 2
DEFAULT_SEQ_LENGTH = 128
task_params = {"SST-2": {"num_labels": 2, "seq_length": 64},
"QNLI": {"num_labels": 2, "seq_length": 128},
"MNLI": {"num_labels": 3, "seq_length": 128}}
class Task:
"""
Encapsulation class of get the task parameter.
"""
def __init__(self, task_name):
self.task_name = task_name
@property
def num_labels(self):
if self.task_name in task_params and "num_labels" in task_params[self.task_name]:
return task_params[self.task_name]["num_labels"]
return DEFAULT_NUM_LABELS
@property
def seq_length(self):
if self.task_name in task_params and "seq_length" in task_params[self.task_name]:
return task_params[self.task_name]["seq_length"]
return DEFAULT_SEQ_LENGTH
task = Task(args_opt.task_name)
def run_predistill():
"""
run predistill
@ -81,7 +115,7 @@ def run_predistill():
netwithloss = BertNetworkWithLoss_td(teacher_config=td_teacher_net_cfg, teacher_ckpt=load_teacher_checkpoint_path,
student_config=td_student_net_cfg, student_ckpt=load_student_checkpoint_path,
is_training=True, task_type='classification',
num_labels=args_opt.num_labels, is_predistill=True)
num_labels=task.num_labels, is_predistill=True)
rank = 0
device_num = 1
@ -91,8 +125,9 @@ def run_predistill():
dataset_size = dataset.get_dataset_size()
print('td1 dataset size: ', dataset_size)
print('td1 dataset repeatcount: ', dataset.get_repeat_count())
if args_opt.enable_data_sink == 'true':
repeat_count = args_opt.td_phase1_epoch_size * dataset.get_dataset_size() // args_opt.data_sink_steps
repeat_count = args_opt.td_phase1_epoch_size * dataset_size // args_opt.data_sink_steps
time_monitor_steps = args_opt.data_sink_steps
else:
repeat_count = args_opt.td_phase1_epoch_size
@ -117,10 +152,14 @@ def run_predistill():
args_opt.save_ckpt_step,
args_opt.max_ckpt_num,
td_phase1_save_ckpt_dir)]
update_cell = DynamicLossScaleUpdateCell(loss_scale_value=cfg.loss_scale_value,
scale_factor=cfg.scale_factor,
scale_window=cfg.scale_window)
netwithgrads = BertEvaluationCell(netwithloss, optimizer=optimizer, scale_update_cell=update_cell)
if enable_loss_scale:
update_cell = DynamicLossScaleUpdateCell(loss_scale_value=cfg.loss_scale_value,
scale_factor=cfg.scale_factor,
scale_window=cfg.scale_window)
netwithgrads = BertEvaluationWithLossScaleCell(netwithloss, optimizer=optimizer, scale_update_cell=update_cell)
else:
netwithgrads = BertEvaluationCell(netwithloss, optimizer=optimizer)
model = Model(netwithgrads)
model.train(repeat_count, dataset, callbacks=callback,
dataset_sink_mode=(args_opt.enable_data_sink == 'true'),
@ -139,7 +178,7 @@ def run_task_distill(ckpt_file):
netwithloss = BertNetworkWithLoss_td(teacher_config=td_teacher_net_cfg, teacher_ckpt=load_teacher_checkpoint_path,
student_config=td_student_net_cfg, student_ckpt=load_student_checkpoint_path,
is_training=True, task_type='classification',
num_labels=args_opt.num_labels, is_predistill=False)
num_labels=task.num_labels, is_predistill=False)
rank = 0
device_num = 1
@ -149,6 +188,7 @@ def run_task_distill(ckpt_file):
dataset_size = train_dataset.get_dataset_size()
print('td2 train dataset size: ', dataset_size)
print('td2 train dataset repeatcount: ', train_dataset.get_repeat_count())
if args_opt.enable_data_sink == 'true':
repeat_count = args_opt.td_phase2_epoch_size * train_dataset.get_dataset_size() // args_opt.data_sink_steps
time_monitor_steps = args_opt.data_sink_steps
@ -175,6 +215,7 @@ def run_task_distill(ckpt_file):
eval_dataset = create_tinybert_dataset('td', td_teacher_net_cfg.batch_size,
device_num, rank, args_opt.do_shuffle,
args_opt.eval_data_dir, args_opt.schema_dir)
print('td2 eval dataset size: ', eval_dataset.get_dataset_size())
if args_opt.do_eval.lower() == "true":
callback = [TimeMonitor(time_monitor_steps), LossCallBack(),
@ -185,11 +226,14 @@ def run_task_distill(ckpt_file):
args_opt.save_ckpt_step,
args_opt.max_ckpt_num,
td_phase2_save_ckpt_dir)]
update_cell = DynamicLossScaleUpdateCell(loss_scale_value=cfg.loss_scale_value,
scale_factor=cfg.scale_factor,
scale_window=cfg.scale_window)
if enable_loss_scale:
update_cell = DynamicLossScaleUpdateCell(loss_scale_value=cfg.loss_scale_value,
scale_factor=cfg.scale_factor,
scale_window=cfg.scale_window)
netwithgrads = BertEvaluationCell(netwithloss, optimizer=optimizer, scale_update_cell=update_cell)
netwithgrads = BertEvaluationWithLossScaleCell(netwithloss, optimizer=optimizer, scale_update_cell=update_cell)
else:
netwithgrads = BertEvaluationCell(netwithloss, optimizer=optimizer)
model = Model(netwithgrads)
model.train(repeat_count, train_dataset, callbacks=callback,
dataset_sink_mode=(args_opt.enable_data_sink == 'true'),
@ -203,7 +247,7 @@ def do_eval_standalone():
if ckpt_file == '':
raise ValueError("Student ckpt file should not be None")
context.set_context(mode=context.GRAPH_MODE, device_target=args_opt.device_target, device_id=args_opt.device_id)
eval_model = BertModelCLS(td_student_net_cfg, False, args_opt.num_labels, 0.0, phase_type="student")
eval_model = BertModelCLS(td_student_net_cfg, False, task.num_labels, 0.0, phase_type="student")
param_dict = load_checkpoint(ckpt_file)
new_param_dict = {}
for key, value in param_dict.items():
@ -213,10 +257,13 @@ def do_eval_standalone():
load_param_into_net(eval_model, new_param_dict)
eval_model.set_train(False)
eval_dataset = create_tinybert_dataset('td', batch_size=1,
eval_dataset = create_tinybert_dataset('td', batch_size=td_student_net_cfg.batch_size,
device_num=1, rank=0, do_shuffle="false",
data_dir=args_opt.eval_data_dir,
schema_dir=args_opt.schema_dir)
print('eval dataset size: ', eval_dataset.get_dataset_size())
print('eval dataset batch size: ', eval_dataset.get_batch_size())
callback = Accuracy()
columns_list = ["input_ids", "input_mask", "segment_ids", "label_ids"]
for data in eval_dataset.create_dict_iterator():
@ -231,9 +278,26 @@ def do_eval_standalone():
print("============== acc is {}".format(acc))
print("======================================")
if __name__ == '__main__':
if args_opt.do_train.lower() != "true" and args_opt.do_eval.lower() != "true":
raise ValueError("do_train or do eval must have one be true, please confirm your config")
enable_loss_scale = True
if args_opt.device_target == "GPU":
if td_teacher_net_cfg.compute_type != mstype.float32:
logger.warning('GPU only support fp32 temporarily, run with fp32.')
td_teacher_net_cfg.compute_type = mstype.float32
if td_student_net_cfg.compute_type != mstype.float32:
logger.warning('GPU only support fp32 temporarily, run with fp32.')
td_student_net_cfg.compute_type = mstype.float32
# Both the forward and backward of the network are calculated using fp32,
# and the loss scale is not necessary
enable_loss_scale = False
td_teacher_net_cfg.seq_length = task.seq_length
td_student_net_cfg.seq_length = task.seq_length
if args_opt.do_train == "true":
# run predistill
run_predistill()

40
model_zoo/official/nlp/tinybert/scripts/run_distribute_gd_for_gpu.sh
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@ -0,0 +1,40 @@
#!/bin/bash
# Copyright 2020 Huawei Technologies Co., Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# 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.
# ============================================================================
echo "=============================================================================================================="
echo "Please run the scipt as: "
echo "bash run_distribute_gd_for_gpu.sh DEVICE_NUM EPOCH_SIZE DATA_DIR SCHEMA_DIR TEACHER_CKPT_PATH"
echo "for example: bash run_distribute_gd_for_gpu.sh 8 3 /path/data/ /path/datasetSchema.json /path/bert_base.ckpt"
echo "It is better to use absolute path."
echo "=============================================================================================================="
RANK_SIZE=$1
EPOCH_SIZE=$2
DATA_DIR=$3
SCHEMA_DIR=$4
TEACHER_CKPT_PATH=$5
PROJECT_DIR=$(cd "$(dirname "$0")" || exit; pwd)
mpirun --allow-run-as-root -n $RANK_SIZE \
python ${PROJECT_DIR}/../run_general_distill.py \
--distribute="true" \
--device_target="GPU" \
--epoch_size=$EPOCH_SIZE \
--save_ckpt_path="" \
--data_dir=$DATA_DIR \
--schema_dir=$SCHEMA_DIR \
--load_teacher_ckpt_path=$TEACHER_CKPT_PATH > log.txt 2>&1 &

2
model_zoo/official/nlp/tinybert/scripts/run_standalone_td.sh
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@ -32,7 +32,7 @@ python ${PROJECT_DIR}/../run_task_distill.py \
--do_eval="true" \
--td_phase1_epoch_size=10 \
--td_phase2_epoch_size=3 \
--num_labels=2 \
--task_name="" \
--do_shuffle="true" \
--enable_data_sink="true" \
--data_sink_steps=100 \

3
model_zoo/official/nlp/tinybert/src/dataset.py
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@ -19,7 +19,6 @@ import os
import mindspore.common.dtype as mstype
import mindspore.dataset.engine.datasets as de
import mindspore.dataset.transforms.c_transforms as C
from mindspore import log as logger
def create_tinybert_dataset(task='td', batch_size=32, device_num=1, rank=0,
do_shuffle="true", data_dir=None, schema_dir=None):
@ -45,7 +44,5 @@ def create_tinybert_dataset(task='td', batch_size=32, device_num=1, rank=0,
ds = ds.map(input_columns="label_ids", operations=type_cast_op)
# apply batch operations
ds = ds.batch(batch_size, drop_remainder=True)
logger.info("data size: {}".format(ds.get_dataset_size()))
logger.info("repeatcount: {}".format(ds.get_repeat_count()))
return ds

109
model_zoo/official/nlp/tinybert/src/tinybert_for_gd_td.py
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@ -292,6 +292,60 @@ class BertTrainWithLossScaleCell(nn.Cell):
ret = (loss, cond, scaling_sens)
return F.depend(ret, succ)
class BertTrainCell(nn.Cell):
"""
Encapsulation class of bert network training.
Append an optimizer to the training network after that the construct
function can be called to create the backward graph.
Args:
network (Cell): The training network. Note that loss function should have been added.
optimizer (Optimizer): Optimizer for updating the weights.
sens (Number): The adjust parameter. Default: 1.0.
"""
def __init__(self, network, optimizer, sens=1.0):
super(BertTrainCell, self).__init__(auto_prefix=False)
self.network = network
self.weights = optimizer.parameters
self.optimizer = optimizer
self.sens = sens
self.grad = C.GradOperation('grad',
get_by_list=True,
sens_param=True)
self.reducer_flag = False
self.parallel_mode = context.get_auto_parallel_context("parallel_mode")
if self.parallel_mode in [ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL]:
self.reducer_flag = True
self.grad_reducer = F.identity
self.degree = 1
if self.reducer_flag:
mean = context.get_auto_parallel_context("mirror_mean")
self.degree = get_group_size()
self.grad_reducer = DistributedGradReducer(optimizer.parameters, mean, self.degree)
self.cast = P.Cast()
self.hyper_map = C.HyperMap()
def construct(self,
input_ids,
input_mask,
token_type_id):
"""Defines the computation performed."""
weights = self.weights
loss = self.network(input_ids,
input_mask,
token_type_id)
grads = self.grad(self.network, weights)(input_ids,
input_mask,
token_type_id,
self.cast(F.tuple_to_array((self.sens,)),
mstype.float32))
# apply grad reducer on grads
grads = self.grad_reducer(grads)
grads = self.hyper_map(F.partial(clip_grad, GRADIENT_CLIP_TYPE, GRADIENT_CLIP_VALUE), grads)
succ = self.optimizer(grads)
return F.depend(loss, succ)
class BertNetworkWithLoss_td(nn.Cell):
"""
Provide bert pre-training loss through network.
@ -411,12 +465,12 @@ class BertNetworkWithLoss_td(nn.Cell):
total_loss += cls_loss
return self.cast(total_loss, mstype.float32)
class BertEvaluationCell(nn.Cell):
class BertEvaluationWithLossScaleCell(nn.Cell):
"""
Especifically defined for finetuning where only four inputs tensor are needed.
"""
def __init__(self, network, optimizer, scale_update_cell=None):
super(BertEvaluationCell, self).__init__(auto_prefix=False)
super(BertEvaluationWithLossScaleCell, self).__init__(auto_prefix=False)
self.network = network
self.weights = optimizer.parameters
self.optimizer = optimizer
@ -496,3 +550,54 @@ class BertEvaluationCell(nn.Cell):
succ = self.optimizer(grads)
ret = (loss, cond, scaling_sens)
return F.depend(ret, succ)
class BertEvaluationCell(nn.Cell):
"""
Especifically defined for finetuning where only four inputs tensor are needed.
"""
def __init__(self, network, optimizer, sens=1.0):
super(BertEvaluationCell, self).__init__(auto_prefix=False)
self.network = network
self.weights = optimizer.parameters
self.optimizer = optimizer
self.sens = sens
self.grad = C.GradOperation('grad',
get_by_list=True,
sens_param=True)
self.reducer_flag = False
self.parallel_mode = context.get_auto_parallel_context("parallel_mode")
if self.parallel_mode in [ParallelMode.DATA_PARALLEL, ParallelMode.HYBRID_PARALLEL]:
self.reducer_flag = True
self.grad_reducer = F.identity
self.degree = 1
if self.reducer_flag:
mean = context.get_auto_parallel_context("mirror_mean")
self.degree = get_group_size()
self.grad_reducer = DistributedGradReducer(optimizer.parameters, mean, self.degree)
self.is_distributed = (self.parallel_mode != ParallelMode.STAND_ALONE)
self.cast = P.Cast()
self.hyper_map = C.HyperMap()
def construct(self,
input_ids,
input_mask,
token_type_id,
label_ids):
"""Defines the computation performed."""
weights = self.weights
loss = self.network(input_ids,
input_mask,
token_type_id,
label_ids)
grads = self.grad(self.network, weights)(input_ids,
input_mask,
token_type_id,
label_ids,
self.cast(F.tuple_to_array((self.sens,)),
mstype.float32))
# apply grad reducer on grads
grads = self.grad_reducer(grads)
grads = self.hyper_map(F.partial(clip_grad, GRADIENT_CLIP_TYPE, GRADIENT_CLIP_VALUE), grads)
succ = self.optimizer(grads)
return F.depend(loss, succ)

5
model_zoo/official/nlp/tinybert/src/utils.py
Unescape View File

@ -110,7 +110,10 @@ class EvalCallBack(Callback):
if acc > self.global_acc:
self.global_acc = acc
print("The best acc is {}".format(acc))
_exec_save_checkpoint(self.network, "eval_model.ckpt")
eval_model_ckpt_file = "eval_model.ckpt"
if os.path.exists(eval_model_ckpt_file):
os.remove(eval_model_ckpt_file)
_exec_save_checkpoint(self.network, eval_model_ckpt_file)
class BertLearningRate(LearningRateSchedule):
"""

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