提交 061b9e9a 编写于 作者: X xixiaoyao

add trainer

上级 2ca36523
# -*- coding: UTF-8 -*-
# Copyright (c) 2019 PaddlePaddle Authors. 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.
# 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.
"""v1.1"""
from copy import copy
class reader(object):
"""interface of data manager."""
def __init__(self, config, phase='train'):
assert isinstance(config, dict)
self._config = config
self._phase = phase
def copy(self, phase=self._phase):
if phase == self._phase:
return copy(self)
else:
ret = copy(self)
ret._phase = phase
return ret
# @property
# def inputs_attr(self):
# """描述reader输入对象的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1.
# Return:
# dict类型。对各个输入对象的属性描述。例如,
# 对于文本分类任务,可能需要包含输入文本和所属标签的id
# {"text": ([], 'str'),
# "label": ([], 'int')}
# 对于标注任务,可能需要输入词序列和对应的标签
# {"tokens", ([-1], 'str'),
# "tags", ([-1], 'str')}
# 对于机器阅读理解任务,可能需要包含上下文、问题、回答、答案区域的起止位置等
# {"paragraph", ([], 'str'),
# "question", ([], 'str'),
# "start_position", ([], 'int')
# """
# raise NotImplementedError()
@property
def outputs_attr(self):
"""描述reader输出对象(被yield出的对象)的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
注意:当使用mini-batch梯度下降学习策略时,,应为常规的输入对象设置batch_size维度(一般为-1)
Return:
dict类型。对各个输入对象的属性描述。例如,
对于文本分类和匹配任务,yield的输出内容可能包含如下的对象(下游backbone和task可按需访问其中的对象)
{"token_ids": ([-1, max_len], 'int64'),
"input_ids": ([-1, max_len], 'int64'),
"segment_ids": ([-1, max_len], 'int64'),
"input_mask": ([-1, max_len], 'float32'),
"label": ([-1], 'int')}
"""
raise NotImplementedError()
# def parse_line(self):
# """框架内部使用字典描述每个样本,字典的key为inputs_attr,value为每个input对应的符合attr描述的值。
# 该函数负责将文本行解析成符合inputs_attr描述的字典类型的样本。默认的parse_line方法会读取json格式的数据集文件,数据集的每一行为json格式描述的样本。
# 用户可通过对该方法的继承改写来适配不同格式的数据集,例如csv格式甚至tfrecord文件。
# """
# raise NotImplementedError()
#
# def tokenize(self, line):
# """框架中内置了word piece tokenizer等分词器,用户可通过修改tokenizer超参数来制定使用的分词器,若内置的分词器均无法满足需求,用户可通过对该方法的继承改写来自定义分词器。
# Args:
# - line: a unicode string.
# Return:
# a list of tokens
# """
# raise NotImplementedError()
def iterator(self):
"""数据集遍历接口,注意,当数据集遍历到尾部时该接口应自动完成指针重置,即重新从数据集头部开始新的遍历。
Yield:
(dict) elements that meet the requirements in output_templete
"""
raise NotImplementedError()
@property
def num_examples(self):
"""数据集中的样本数量,即每个epoch中iterator所生成的样本数。注意,使用滑动窗口等可能导致数据集样本数发生变化的策略时,该接口应返回runtime阶段的实际样本数。"""
raise NotImplementedError()
# -*- coding: UTF-8 -*-
# Copyright (c) 2019 PaddlePaddle Authors. 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.
# 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.
class task(object):
def __init__(self, config, phase, backbone_config):
"""
config: dict类型。描述了 任务实例(task instance)+多任务配置文件 中定义超参数
phase: str类型。运行阶段,目前支持train和predict
"""
@property
def inputs_attrs(self):
"""描述task_layer需要从reader, backbone等输入对象集合所读取到的输入对象的属性,第一级key为对象集和的名字,如backbone,reader等(后续会支持更灵活的输入),第二级key为对象集和中各对象的属性,包括对象的名字,shape和dtype。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个对象集及其输入对象的属性描述。"""
raise NotImplementedError()
@property
def outputs_attr(self):
"""描述task输出对象的属性,包括对象的名字,shape和dtype。输出对象会被加入到fetch_list中,从而在每个训练/推理step时得到runtime的计算结果,该计算结果会被传入postprocess方法中供用户处理。
当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个输入对象的属性描述。注意,训练阶段必须包含名为loss的输出对象。
"""
raise NotImplementedError()
@property
def epoch_inputs_attrs(self):
return {}
def build(self, inputs, scope_name=""):
"""建立task_layer的计算图。将符合inputs_attrs描述的来自各个对象集的静态图Variables映射成符合outputs_attr描述的静态图Variable输出。
Args:
inputs: dict类型。字典中包含inputs_attrs中的对象名到计算图Variable的映射,inputs中至少会包含inputs_attr中定义的对象
Return:
需要输出的计算图变量,输出对象会被加入到fetch_list中,从而在每个训练/推理step时得到runtime的计算结果,该计算结果会被传入postprocess方法中供用户处理。
"""
raise NotImplementedError()
def postprocess(self, rt_outputs):
"""每个训练或推理step后针对当前batch的task_layer的runtime计算结果进行相关后处理。注意,rt_outputs除了包含build方法,还自动包含了loss的计算结果。"""
pass
def epoch_postprocess(self, post_inputs):
pass
# -*- coding: UTF-8 -*-
# Copyright (c) 2019 PaddlePaddle Authors. 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.
# 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.
"""v1.1"""
class reader(object):
"""interface of data manager."""
def __init__(self, config):
assert isinstance(config, dict)
# @property
# def inputs_attr(self):
# """描述reader输入对象的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1.
# Return:
# dict类型。对各个输入对象的属性描述。例如,
# 对于文本分类任务,可能需要包含输入文本和所属标签的id
# {"text": ([], 'str'),
# "label": ([], 'int')}
# 对于标注任务,可能需要输入词序列和对应的标签
# {"tokens", ([-1], 'str'),
# "tags", ([-1], 'str')}
# 对于机器阅读理解任务,可能需要包含上下文、问题、回答、答案区域的起止位置等
# {"paragraph", ([], 'str'),
# "question", ([], 'str'),
# "start_position", ([], 'int')
# """
# raise NotImplementedError()
@property
def outputs_attr(self):
"""描述reader输出对象(被yield出的对象)的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
注意:当使用mini-batch梯度下降学习策略时,,应为常规的输入对象设置batch_size维度(一般为-1)
Return:
dict类型。对各个输入对象的属性描述。例如,
对于文本分类和匹配任务,yield的输出内容可能包含如下的对象(下游backbone和task可按需访问其中的对象)
{"token_ids": ([-1, max_len], 'int64'),
"input_ids": ([-1, max_len], 'int64'),
"segment_ids": ([-1, max_len], 'int64'),
"input_mask": ([-1, max_len], 'float32'),
"label": ([-1], 'int')}
"""
raise NotImplementedError()
# def parse_line(self):
# """框架内部使用字典描述每个样本,字典的key为inputs_attr,value为每个input对应的符合attr描述的值。
# 该函数负责将文本行解析成符合inputs_attr描述的字典类型的样本。默认的parse_line方法会读取json格式的数据集文件,数据集的每一行为json格式描述的样本。
# 用户可通过对该方法的继承改写来适配不同格式的数据集,例如csv格式甚至tfrecord文件。
# """
# raise NotImplementedError()
#
# def tokenize(self, line):
# """框架中内置了word piece tokenizer等分词器,用户可通过修改tokenizer超参数来制定使用的分词器,若内置的分词器均无法满足需求,用户可通过对该方法的继承改写来自定义分词器。
# Args:
# - line: a unicode string.
# Return:
# a list of tokens
# """
# raise NotImplementedError()
def iterator(self):
"""数据集遍历接口,注意,当数据集遍历到尾部时该接口应自动完成指针重置,即重新从数据集头部开始新的遍历。
Yield:
(dict) elements that meet the requirements in output_templete
"""
raise NotImplementedError()
@property
def num_examples(self):
"""数据集中的样本数量,即每个epoch中iterator所生成的样本数。注意,使用滑动窗口等可能导致数据集样本数发生变化的策略时,该接口应返回runtime阶段的实际样本数。"""
raise NotImplementedError()
class backbone(object):
"""interface of backbone model."""
def __init__(self, config, phase):
"""
Args:
config: dict类型。描述了 多任务配置文件+预训练模型配置文件 中定义超参数
phase: str类型。运行阶段,目前支持train和predict
"""
assert isinstance(config, dict)
@property
def inputs_attr(self):
"""描述backbone从reader处需要得到的输入对象的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个输入对象的属性描述。例如,
对于文本分类和匹配任务,bert backbone依赖的reader对象主要包含如下的对象
{"token_ids": ([-1, max_len], 'int64'),
"input_ids": ([-1, max_len], 'int64'),
"segment_ids": ([-1, max_len], 'int64'),
"input_mask": ([-1, max_len], 'float32')}"""
raise NotImplementedError()
@property
def outputs_attr(self):
"""描述backbone输出对象的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个输出对象的属性描述。例如,
对于文本分类和匹配任务,bert backbone的输出内容可能包含如下的对象
{"word_emb": ([-1, max_seqlen, word_emb_size], 'float32'),
"sentence_emb": ([-1, hidden_size], 'float32'),
"sim_vec": ([-1, hidden_size], 'float32')}"""
raise NotImplementedError()
def build(self, inputs):
"""建立backbone的计算图。将符合inputs_attr描述的静态图Variable输入映射成符合outputs_attr描述的静态图Variable输出。
Args:
inputs: dict类型。字典中包含inputs_attr中的对象名到计算图Variable的映射,inputs中至少会包含inputs_attr中定义的对象
Return:
需要输出的计算图变量,输出对象会被加入到fetch_list中,从而在每个训练/推理step时得到runtime的计算结果,该计算结果会被传入postprocess方法中供用户处理。
"""
raise NotImplementedError()
class task_paradigm(object):
def __init__(self, config, phase, backbone_config):
"""
config: dict类型。描述了 任务实例(task instance)+多任务配置文件 中定义超参数
phase: str类型。运行阶段,目前支持train和predict
"""
@property
def inputs_attrs(self):
"""描述task_layer需要从reader, backbone等输入对象集合所读取到的输入对象的属性,第一级key为对象集和的名字,如backbone,reader等(后续会支持更灵活的输入),第二级key为对象集和中各对象的属性,包括对象的名字,shape和dtype。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个对象集及其输入对象的属性描述。"""
raise NotImplementedError()
@property
def outputs_attr(self):
"""描述task输出对象的属性,包括对象的名字,shape和dtype。输出对象会被加入到fetch_list中,从而在每个训练/推理step时得到runtime的计算结果,该计算结果会被传入postprocess方法中供用户处理。
当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个输入对象的属性描述。注意,训练阶段必须包含名为loss的输出对象。
"""
raise NotImplementedError()
@property
def epoch_inputs_attrs(self):
return {}
def build(self, inputs, scope_name=""):
"""建立task_layer的计算图。将符合inputs_attrs描述的来自各个对象集的静态图Variables映射成符合outputs_attr描述的静态图Variable输出。
Args:
inputs: dict类型。字典中包含inputs_attrs中的对象名到计算图Variable的映射,inputs中至少会包含inputs_attr中定义的对象
Return:
需要输出的计算图变量,输出对象会被加入到fetch_list中,从而在每个训练/推理step时得到runtime的计算结果,该计算结果会被传入postprocess方法中供用户处理。
"""
raise NotImplementedError()
def postprocess(self, rt_outputs):
"""每个训练或推理step后针对当前batch的task_layer的runtime计算结果进行相关后处理。注意,rt_outputs除了包含build方法,还自动包含了loss的计算结果。"""
pass
def epoch_postprocess(self, post_inputs):
pass
# -*- coding: UTF-8 -*-
# Copyright (c) 2019 PaddlePaddle Authors. 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.
# 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.
"""v1.1"""
class reader(object):
"""interface of data manager."""
def __init__(self, config):
assert isinstance(config, dict)
# @property
# def inputs_attr(self):
# """描述reader输入对象的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1.
# Return:
# dict类型。对各个输入对象的属性描述。例如,
# 对于文本分类任务,可能需要包含输入文本和所属标签的id
# {"text": ([], 'str'),
# "label": ([], 'int')}
# 对于标注任务,可能需要输入词序列和对应的标签
# {"tokens", ([-1], 'str'),
# "tags", ([-1], 'str')}
# 对于机器阅读理解任务,可能需要包含上下文、问题、回答、答案区域的起止位置等
# {"paragraph", ([], 'str'),
# "question", ([], 'str'),
# "start_position", ([], 'int')
# """
# raise NotImplementedError()
@property
def outputs_attr(self):
"""描述reader输出对象(被yield出的对象)的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
注意:当使用mini-batch梯度下降学习策略时,,应为常规的输入对象设置batch_size维度(一般为-1)
Return:
dict类型。对各个输入对象的属性描述。例如,
对于文本分类和匹配任务,yield的输出内容可能包含如下的对象(下游backbone和task可按需访问其中的对象)
{"token_ids": ([-1, max_len], 'int64'),
"input_ids": ([-1, max_len], 'int64'),
"segment_ids": ([-1, max_len], 'int64'),
"input_mask": ([-1, max_len], 'float32'),
"label": ([-1], 'int')}
"""
raise NotImplementedError()
# def parse_line(self):
# """框架内部使用字典描述每个样本,字典的key为inputs_attr,value为每个input对应的符合attr描述的值。
# 该函数负责将文本行解析成符合inputs_attr描述的字典类型的样本。默认的parse_line方法会读取json格式的数据集文件,数据集的每一行为json格式描述的样本。
# 用户可通过对该方法的继承改写来适配不同格式的数据集,例如csv格式甚至tfrecord文件。
# """
# raise NotImplementedError()
#
# def tokenize(self, line):
# """框架中内置了word piece tokenizer等分词器,用户可通过修改tokenizer超参数来制定使用的分词器,若内置的分词器均无法满足需求,用户可通过对该方法的继承改写来自定义分词器。
# Args:
# - line: a unicode string.
# Return:
# a list of tokens
# """
# raise NotImplementedError()
def iterator(self):
"""数据集遍历接口,注意,当数据集遍历到尾部时该接口应自动完成指针重置,即重新从数据集头部开始新的遍历。
Yield:
(dict) elements that meet the requirements in output_templete
"""
raise NotImplementedError()
@property
def num_examples(self):
"""数据集中的样本数量,即每个epoch中iterator所生成的样本数。注意,使用滑动窗口等可能导致数据集样本数发生变化的策略时,该接口应返回runtime阶段的实际样本数。"""
raise NotImplementedError()
class backbone(object):
"""interface of backbone model."""
def __init__(self, config, phase):
"""
Args:
config: dict类型。描述了 多任务配置文件+预训练模型配置文件 中定义超参数
phase: str类型。运行阶段,目前支持train和predict
"""
assert isinstance(config, dict)
@property
def inputs_attr(self):
"""描述backbone从reader处需要得到的输入对象的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个输入对象的属性描述。例如,
对于文本分类和匹配任务,bert backbone依赖的reader对象主要包含如下的对象
{"token_ids": ([-1, max_len], 'int64'),
"input_ids": ([-1, max_len], 'int64'),
"segment_ids": ([-1, max_len], 'int64'),
"input_mask": ([-1, max_len], 'float32')}"""
raise NotImplementedError()
@property
def outputs_attr(self):
"""描述backbone输出对象的属性,包含各个对象的名字、shape以及数据类型。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个输出对象的属性描述。例如,
对于文本分类和匹配任务,bert backbone的输出内容可能包含如下的对象
{"word_emb": ([-1, max_seqlen, word_emb_size], 'float32'),
"sentence_emb": ([-1, hidden_size], 'float32'),
"sim_vec": ([-1, hidden_size], 'float32')}"""
raise NotImplementedError()
def build(self, inputs):
"""建立backbone的计算图。将符合inputs_attr描述的静态图Variable输入映射成符合outputs_attr描述的静态图Variable输出。
Args:
inputs: dict类型。字典中包含inputs_attr中的对象名到计算图Variable的映射,inputs中至少会包含inputs_attr中定义的对象
Return:
需要输出的计算图变量,输出对象会被加入到fetch_list中,从而在每个训练/推理step时得到runtime的计算结果,该计算结果会被传入postprocess方法中供用户处理。
"""
raise NotImplementedError()
class task_paradigm(object):
def __init__(self, config, phase, backbone_config):
"""
config: dict类型。描述了 任务实例(task instance)+多任务配置文件 中定义超参数
phase: str类型。运行阶段,目前支持train和predict
"""
@property
def inputs_attrs(self):
"""描述task_layer需要从reader, backbone等输入对象集合所读取到的输入对象的属性,第一级key为对象集和的名字,如backbone,reader等(后续会支持更灵活的输入),第二级key为对象集和中各对象的属性,包括对象的名字,shape和dtype。当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个对象集及其输入对象的属性描述。"""
raise NotImplementedError()
@property
def outputs_attr(self):
"""描述task输出对象的属性,包括对象的名字,shape和dtype。输出对象会被加入到fetch_list中,从而在每个训练/推理step时得到runtime的计算结果,该计算结果会被传入postprocess方法中供用户处理。
当某个对象为标量数据类型(如str, int, float等)时,shape设置为空列表[],当某个对象的某个维度长度可变时,shape中的相应维度设置为-1。
Return:
dict类型。对各个输入对象的属性描述。注意,训练阶段必须包含名为loss的输出对象。
"""
raise NotImplementedError()
@property
def epoch_inputs_attrs(self):
return {}
def build(self, inputs, scope_name=""):
"""建立task_layer的计算图。将符合inputs_attrs描述的来自各个对象集的静态图Variables映射成符合outputs_attr描述的静态图Variable输出。
Args:
inputs: dict类型。字典中包含inputs_attrs中的对象名到计算图Variable的映射,inputs中至少会包含inputs_attr中定义的对象
Return:
需要输出的计算图变量,输出对象会被加入到fetch_list中,从而在每个训练/推理step时得到runtime的计算结果,该计算结果会被传入postprocess方法中供用户处理。
"""
raise NotImplementedError()
def postprocess(self, rt_outputs):
"""每个训练或推理step后针对当前batch的task_layer的runtime计算结果进行相关后处理。注意,rt_outputs除了包含build方法,还自动包含了loss的计算结果。"""
pass
def epoch_postprocess(self, post_inputs):
pass
# -*- coding: UTF-8 -*-
# Copyright (c) 2019 PaddlePaddle Authors. 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.
# 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.
from paddlepalm.interface import reader as base_reader
from paddlepalm.interface import task_paradigm as base_paradigm
import os
import json
from paddle import fluid
import importlib
from paddlepalm.default_settings import *
def check_req_args(conf, name):
assert 'reader' in conf, name+': reader is required to build TaskInstance.'
assert 'paradigm' in conf, name+': paradigm is required to build TaskInstance.'
assert 'train_file' in conf or 'pred_file' in conf, name+': at least train_file or pred_file should be provided to build TaskInstance.'
class TaskInstance(object):
def __init__(self, name, id, config, verbose=True):
self._name = name
self._config = config
self._verbose = verbose
check_req_args(config, name)
# parse Reader and Paradigm
reader_name = config['reader']
reader_mod = importlib.import_module(READER_DIR + '.' + reader_name)
Reader = getattr(reader_mod, 'Reader')
parad_name = config['paradigm']
parad_mod = importlib.import_module(PARADIGM_DIR + '.' + parad_name)
Paradigm = getattr(parad_mod, 'TaskParadigm')
self._Reader = Reader
self._Paradigm = Paradigm
self._save_infermodel_path = os.path.join(self._config['save_path'], self._name, 'infer_model')
self._save_ckpt_path = os.path.join(self._config['save_path'], 'ckpt')
self._save_infermodel_every_n_steps = config.get('save_infermodel_every_n_steps', -1)
# following flags can be fetch from instance config file
self._is_target = config.get('is_target', True)
self._first_target = config.get('is_first_target', False)
self._task_reuse_scope = config.get('task_reuse_scope', name)
self._feeded_var_names = None
self._target_vars = None
# training process management
self._mix_ratio = None
self._expected_train_steps = None
self._expected_train_epochs = None
self._steps_pur_epoch = None
self._cur_train_epoch = 0
self._cur_train_step = 0
self._train_finish = False
# 存放不同运行阶段(train,eval,pred)的数据集reader,key为phase,value为Reader实例
self._reader = {'train': None, 'eval': None, 'pred': None}
self._input_layer = None
self._inputname_to_varname = {}
self._task_layer = {'train': None, 'eval': None, 'pred': None}
self._pred_input_name_list = []
self._pred_input_varname_list = []
self._pred_fetch_name_list = []
self._pred_fetch_var_list = []
self._exe = fluid.Executor(fluid.CPUPlace())
self._save_protocol = {
'input_names': 'self._pred_input_name_list',
'input_varnames': 'self._pred_input_varname_list',
'fetch_list': 'self._pred_fetch_name_list'}
def build_task_layer(self, net_inputs, phase, scope=""):
output_vars = self._task_layer[phase].build(net_inputs, scope_name=scope)
if phase == 'pred':
if output_vars is not None:
self._pred_fetch_name_list, self._pred_fetch_var_list = zip(*output_vars.items())
else:
self._pred_fetch_name_list = []
self._pred_fetch_var_list = []
return output_vars
def postprocess(self, rt_outputs, phase):
return self._task_layer[phase].postprocess(rt_outputs)
def epoch_postprocess(self, epoch_inputs, phase):
return self._task_layer[phase].epoch_postprocess(epoch_inputs)
def save(self, suffix=''):
dirpath = self._save_infermodel_path + suffix
self._pred_input_varname_list = [str(i) for i in self._pred_input_varname_list]
# fluid.io.save_inference_model(dirpath, self._pred_input_varname_list, self._pred_fetch_var_list, self._exe, export_for_deployment = True)
prog = fluid.default_main_program().clone()
fluid.io.save_inference_model(dirpath, self._pred_input_varname_list, self._pred_fetch_var_list, self._exe, prog)
conf = {}
for k, strv in self._save_protocol.items():
d = None
v = locals()
exec('d={}'.format(strv), globals(), v)
conf[k] = v['d']
with open(os.path.join(dirpath, '__conf__'), 'w') as writer:
writer.write(json.dumps(conf, indent=1))
print(self._name + ': inference model saved at ' + dirpath)
def load(self, infer_model_path=None):
if infer_model_path is None:
infer_model_path = self._save_infermodel_path
for k,v in json.load(open(os.path.join(infer_model_path, '__conf__'))).items():
strv = self._save_protocol[k]
exec('{}=v'.format(strv))
pred_prog, self._pred_input_varname_list, self._pred_fetch_var_list = \
fluid.io.load_inference_model(infer_model_path, self._exe)
print(self._name+': inference model loaded from ' + infer_model_path)
return pred_prog
@property
def name(self):
return self._name
@property
def Reader(self):
return self._Reader
# @Reader.setter
# def Reader(self, cls):
# assert base_reader.__name__ == cls.__bases__[-1].__name__, \
# "expect: {}, receive: {}.".format(base_reader.__name__, \
# cls.__bases__[-1].__name__)
# self._Reader = cls
@property
def Paradigm(self):
return self._Paradigm
# @Paradigm.setter
# def Paradigm(self, cls):
# assert base_paradigm.__name__ == cls.__bases__[-1].__name__, \
# "expect: {}, receive: {}.".format(base_paradigm.__name__, \
# cls.__bases__[-1].__name__)
# self._Paradigm = cls
@property
def config(self):
return self._config
@property
def reader(self):
return self._reader
@property
def pred_input(self):
return zip(*[self._pred_input_name_list, self._pred_input_varname_list])
@pred_input.setter
def pred_input(self, val):
assert isinstance(val, dict)
self._pred_input_name_list, self._pred_input_varname_list = \
zip(*[[k, v.name] for k,v in val.items()])
@property
def pred_fetch_list(self):
return [self._pred_fetch_name_list, self._pred_fetch_var_list]
@property
def task_layer(self):
return self._task_layer
@property
def is_first_target(self):
return self._is_first_target
@is_first_target.setter
def is_first_target(self, value):
self._is_first_target = bool(value)
if self._is_first_target:
assert self._is_target, "ERROR: only target task could be set as main task."
if self._verbose and self._is_first_target:
print("{}: set as main task".format(self._name))
@property
def is_target(self):
if self._is_target is not None:
return self._is_target
else:
raise ValueError("{}: is_target is None".format(self._name))
@is_target.setter
def is_target(self, value):
self._is_target = bool(value)
if self._verbose:
if self._is_target:
print('{}: set as target task.'.format(self._name))
else:
print('{}: set as aux task.'.format(self._name))
@property
def mix_ratio(self):
if self._mix_ratio is not None:
return self._mix_ratio
else:
raise ValueError("{}: mix_ratio is None".format(self._name))
@mix_ratio.setter
def mix_ratio(self, value):
self._mix_ratio = float(value)
if self._verbose:
print('{}: mix_ratio is set to {}'.format(self._name, self._mix_ratio))
@property
def save_infermodel_every_n_steps(self):
return self._save_infermodel_every_n_steps
@property
def expected_train_steps(self):
return self._expected_train_steps
@expected_train_steps.setter
def expected_train_steps(self, value):
self._expected_train_steps = value
self._expected_train_epochs = value / float(self._steps_pur_epoch)
@property
def expected_train_epochs(self):
return self._expected_train_epochs
@property
def cur_train_epoch(self):
return self._cur_train_epoch
@cur_train_epoch.setter
def cur_train_epoch(self, value):
self._cur_train_epoch = value
@property
def cur_train_step(self):
return self._cur_train_step
@cur_train_step.setter
def cur_train_step(self, value):
self._cur_train_step = value
if self._cur_train_step > self._steps_pur_epoch:
self._cur_train_epoch += 1
self._cur_train_step = 1
if self._is_target and self._cur_train_step + self._cur_train_epoch * self._steps_pur_epoch >= self._expected_train_steps:
self._train_finish = True
@property
def steps_pur_epoch(self):
return self._steps_pur_epoch
@steps_pur_epoch.setter
def steps_pur_epoch(self, value):
self._steps_pur_epoch = value
@property
def train_finish(self):
return self._train_finish
@property
def task_reuse_scope(self):
if self._task_reuse_scope is not None:
return self._task_reuse_scope
else:
raise ValueError("{}: task_reuse_scope is None".format(self._name))
@task_reuse_scope.setter
def task_reuse_scope(self, scope_name):
self._task_reuse_scope = str(scope_name)
if self._verbose:
print('{}: task_reuse_scope is set to {}'.format(self._name, self._task_reuse_scope))
def check_instances(insts):
"""to check ids, first_target"""
pass
def _check_ids():
pass
def _check_targets():
pass
def _check_reuse_scopes():
pass
...@@ -22,17 +22,21 @@ import importlib ...@@ -22,17 +22,21 @@ import importlib
from paddlepalm.default_settings import * from paddlepalm.default_settings import *
def Task(object): def Trainer(object):
def __init__(self, name, reader, taskblock, mix_ratio=1.0, \
pred_reader=None, pred_taskblock=None, def __init__(self, name, reader, task, mix_ratio=1.0, \
infermodel_save_path=None, save_infermodel_every_n_steps=-1, \ save_predict_model=True, save_path=None, save_steps=-1)\
as_target_task=True, task_layer_reuse=None, silent=False): reuse_with=None, silent=False):
self._name = name self._name = name
self._verbose = not silent self._verbose = not silent
if infermodel_save_path is None: if save_predict_model:
self._save_infermodel_path = os.path.join(self._config['save_path'], self._name, 'infer_model') assert save_path is not None, "save_path is required when save_predict_model is set."
assert save_steps == -1 or save_steps > 0, "save_steps should be -1 (only save the last step of this task) or larger than 0"
assert pred_reader is not None and pred_task is not None, ""
self._save_infermodel_path = os.path.join(self._config['save_path'], self._name, 'infer_model')
else: else:
self._save_infermodel_path = infermodel_save_path self._save_infermodel_path = infermodel_save_path
......
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