converter.py

# Copyright 2018 The MACE 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.

import argparse
import glob
import sh
import sys
import time
import yaml

from enum import Enum
import six

import sh_commands

from common import *
from device import DeviceWrapper, DeviceManager

################################
# set environment
################################
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'

################################
# common definitions
################################

ABITypeStrs = [
    'armeabi-v7a',
    'arm64-v8a',
    'arm64',
    'armhf',
    'host',
]

ModelFormatStrs = [
    "file",
    "code",
]

PlatformTypeStrs = [
    "tensorflow",
    "caffe",
    "onnx",
]
PlatformType = Enum('PlatformType', [(ele, ele) for ele in PlatformTypeStrs],
                    type=str)

RuntimeTypeStrs = [
    "cpu",
    "gpu",
    "dsp",
    "hta",
    "cpu+gpu"
]

InputDataTypeStrs = [
    "int32",
    "float32",
]

InputDataType = Enum('InputDataType',
                     [(ele, ele) for ele in InputDataTypeStrs],
                     type=str)

FPDataTypeStrs = [
    "fp16_fp32",
    "fp32_fp32",
]

FPDataType = Enum('GPUDataType', [(ele, ele) for ele in FPDataTypeStrs],
                  type=str)

DSPDataTypeStrs = [
    "uint8",
]

DSPDataType = Enum('DSPDataType', [(ele, ele) for ele in DSPDataTypeStrs],
                   type=str)

WinogradParameters = [0, 2, 4]

DataFormatStrs = [
    "NONE",
    "NHWC",
    "NCHW",
    "OIHW",
]


class DefaultValues(object):
    mace_lib_type = MACELibType.static
    omp_num_threads = -1,
    cpu_affinity_policy = 1,
    gpu_perf_hint = 3,
    gpu_priority_hint = 3,


class ValidationThreshold(object):
    cpu_threshold = 0.999,
    gpu_threshold = 0.995,
    hexagon_threshold = 0.930,
    cpu_quantize_threshold = 0.980,


CPP_KEYWORDS = [
    'alignas', 'alignof', 'and', 'and_eq', 'asm', 'atomic_cancel',
    'atomic_commit', 'atomic_noexcept', 'auto', 'bitand', 'bitor',
    'bool', 'break', 'case', 'catch', 'char', 'char16_t', 'char32_t',
    'class', 'compl', 'concept', 'const', 'constexpr', 'const_cast',
    'continue', 'co_await', 'co_return', 'co_yield', 'decltype', 'default',
    'delete', 'do', 'double', 'dynamic_cast', 'else', 'enum', 'explicit',
    'export', 'extern', 'false', 'float', 'for', 'friend', 'goto', 'if',
    'import', 'inline', 'int', 'long', 'module', 'mutable', 'namespace',
    'new', 'noexcept', 'not', 'not_eq', 'nullptr', 'operator', 'or', 'or_eq',
    'private', 'protected', 'public', 'register', 'reinterpret_cast',
    'requires', 'return', 'short', 'signed', 'sizeof', 'static',
    'static_assert', 'static_cast', 'struct', 'switch', 'synchronized',
    'template', 'this', 'thread_local', 'throw', 'true', 'try', 'typedef',
    'typeid', 'typename', 'union', 'unsigned', 'using', 'virtual', 'void',
    'volatile', 'wchar_t', 'while', 'xor', 'xor_eq', 'override', 'final',
    'transaction_safe', 'transaction_safe_dynamic', 'if', 'elif', 'else',
    'endif', 'defined', 'ifdef', 'ifndef', 'define', 'undef', 'include',
    'line', 'error', 'pragma',
]


################################
# common functions
################################
def parse_device_type(runtime):
    device_type = ""

    if runtime == RuntimeType.dsp:
        device_type = DeviceType.HEXAGON
    elif runtime == RuntimeType.hta:
        device_type = DeviceType.HTA
    elif runtime == RuntimeType.gpu:
        device_type = DeviceType.GPU
    elif runtime == RuntimeType.cpu:
        device_type = DeviceType.CPU

    return device_type


def get_hexagon_mode(configs):
    runtime_list = []
    for model_name in configs[YAMLKeyword.models]:
        model_runtime = \
            configs[YAMLKeyword.models][model_name].get(
                YAMLKeyword.runtime, "")
        runtime_list.append(model_runtime.lower())

    if RuntimeType.dsp in runtime_list:
        return True
    return False


def get_hta_mode(configs):
    runtime_list = []
    for model_name in configs[YAMLKeyword.models]:
        model_runtime = \
            configs[YAMLKeyword.models][model_name].get(
                YAMLKeyword.runtime, "")
        runtime_list.append(model_runtime.lower())

    if RuntimeType.hta in runtime_list:
        return True
    return False


def get_opencl_mode(configs):
    runtime_list = []
    for model_name in configs[YAMLKeyword.models]:
        model_runtime = \
            configs[YAMLKeyword.models][model_name].get(
                YAMLKeyword.runtime, "")
        runtime_list.append(model_runtime.lower())

    if RuntimeType.gpu in runtime_list or RuntimeType.cpu_gpu in runtime_list:
        return True
    return False


def get_quantize_mode(configs):
    for model_name in configs[YAMLKeyword.models]:
        quantize =\
            configs[YAMLKeyword.models][model_name].get(
                YAMLKeyword.quantize, 0)
        if quantize == 1:
            return True

    return False


def get_symbol_hidden_mode(debug_mode, mace_lib_type=None):
    if not mace_lib_type:
        return True
    if debug_mode or mace_lib_type == MACELibType.dynamic:
        return False
    else:
        return True


def md5sum(str):
    md5 = hashlib.md5()
    md5.update(str.encode('utf-8'))
    return md5.hexdigest()


def sha256_checksum(fname):
    hash_func = hashlib.sha256()
    with open(fname, "rb") as f:
        for chunk in iter(lambda: f.read(4096), b""):
            hash_func.update(chunk)
    return hash_func.hexdigest()


def format_model_config(flags):
    with open(flags.config) as f:
        configs = yaml.load(f)

    library_name = configs.get(YAMLKeyword.library_name, "")
    mace_check(len(library_name) > 0,
               ModuleName.YAML_CONFIG, "library name should not be empty")

    if flags.target_abis:
        target_abis = flags.target_abis.split(',')
    else:
        target_abis = configs.get(YAMLKeyword.target_abis, [])
    mace_check((isinstance(target_abis, list) and len(target_abis) > 0),
               ModuleName.YAML_CONFIG, "target_abis list is needed")
    configs[YAMLKeyword.target_abis] = target_abis
    for abi in target_abis:
        mace_check(abi in ABITypeStrs,
                   ModuleName.YAML_CONFIG,
                   "target_abis must be in " + str(ABITypeStrs))

    target_socs = configs.get(YAMLKeyword.target_socs, "")
    if flags.target_socs and flags.target_socs != TargetSOCTag.random \
            and flags.target_socs != TargetSOCTag.all:
        configs[YAMLKeyword.target_socs] = \
            [soc.lower() for soc in flags.target_socs.split(',')]
    elif not target_socs:
        configs[YAMLKeyword.target_socs] = []
    elif not isinstance(target_socs, list):
        configs[YAMLKeyword.target_socs] = [target_socs]

    configs[YAMLKeyword.target_socs] = \
        [soc.lower() for soc in configs[YAMLKeyword.target_socs]]

    if ABIType.armeabi_v7a in target_abis \
            or ABIType.arm64_v8a in target_abis:
        available_socs = sh_commands.adb_get_all_socs()
        target_socs = configs[YAMLKeyword.target_socs]
        if TargetSOCTag.all in target_socs:
            mace_check(available_socs,
                       ModuleName.YAML_CONFIG,
                       "Android abi is listed in config file and "
                       "build for all SOCs plugged in computer, "
                       "But no android phone found, "
                       "you at least plug in one phone")
        else:
            for soc in target_socs:
                mace_check(soc in available_socs,
                           ModuleName.YAML_CONFIG,
                           "Build specified SOC library, "
                           "you must plug in a phone using the SOC")

    if flags.model_graph_format:
        model_graph_format = flags.model_graph_format
    else:
        model_graph_format = configs.get(YAMLKeyword.model_graph_format, "")
    mace_check(model_graph_format in ModelFormatStrs,
               ModuleName.YAML_CONFIG,
               'You must set model_graph_format and '
               "model_graph_format must be in " + str(ModelFormatStrs))
    configs[YAMLKeyword.model_graph_format] = model_graph_format
    if flags.model_data_format:
        model_data_format = flags.model_data_format
    else:
        model_data_format = configs.get(YAMLKeyword.model_data_format, "")
    configs[YAMLKeyword.model_data_format] = model_data_format
    mace_check(model_data_format in ModelFormatStrs,
               ModuleName.YAML_CONFIG,
               'You must set model_data_format and '
               "model_data_format must be in " + str(ModelFormatStrs))

    mace_check(not (model_graph_format == ModelFormat.file
                    and model_data_format == ModelFormat.code),
               ModuleName.YAML_CONFIG,
               "If model_graph format is 'file',"
               " the model_data_format must be 'file' too")

    model_names = configs.get(YAMLKeyword.models, [])
    mace_check(len(model_names) > 0, ModuleName.YAML_CONFIG,
               "no model found in config file")

    model_name_reg = re.compile(r'^[a-zA-Z0-9_]+$')
    for model_name in model_names:
        # check model_name legality
        mace_check(model_name not in CPP_KEYWORDS,
                   ModuleName.YAML_CONFIG,
                   "model name should not be c++ keyword.")
        mace_check((model_name[0] == '_' or model_name[0].isalpha())
                   and bool(model_name_reg.match(model_name)),
                   ModuleName.YAML_CONFIG,
                   "model name should Meet the c++ naming convention"
                   " which start with '_' or alpha"
                   " and only contain alpha, number and '_'")

        model_config = configs[YAMLKeyword.models][model_name]
        platform = model_config.get(YAMLKeyword.platform, "")
        mace_check(platform in PlatformTypeStrs,
                   ModuleName.YAML_CONFIG,
                   "'platform' must be in " + str(PlatformTypeStrs))

        for key in [YAMLKeyword.model_file_path,
                    YAMLKeyword.model_sha256_checksum]:
            value = model_config.get(key, "")
            mace_check(value != "", ModuleName.YAML_CONFIG,
                       "'%s' is necessary" % key)

        weight_file_path = model_config.get(YAMLKeyword.weight_file_path, "")
        if weight_file_path:
            weight_checksum = \
                model_config.get(YAMLKeyword.weight_sha256_checksum, "")
            mace_check(weight_checksum != "", ModuleName.YAML_CONFIG,
                       "'%s' is necessary" %
                       YAMLKeyword.weight_sha256_checksum)
        else:
            model_config[YAMLKeyword.weight_sha256_checksum] = ""

        runtime = model_config.get(YAMLKeyword.runtime, "")
        mace_check(runtime in RuntimeTypeStrs,
                   ModuleName.YAML_CONFIG,
                   "'runtime' must be in " + str(RuntimeTypeStrs))
        if ABIType.host in target_abis:
            mace_check(runtime == RuntimeType.cpu,
                       ModuleName.YAML_CONFIG,
                       "host only support cpu runtime now.")

        data_type = model_config.get(YAMLKeyword.data_type, "")
        if runtime == RuntimeType.dsp:
            if len(data_type) > 0:
                mace_check(data_type in DSPDataTypeStrs,
                           ModuleName.YAML_CONFIG,
                           "'data_type' must be in " + str(DSPDataTypeStrs)
                           + " for dsp runtime")
            else:
                model_config[YAMLKeyword.data_type] = \
                    DSPDataType.uint8.value
        else:
            if len(data_type) > 0:
                mace_check(data_type in FPDataTypeStrs,
                           ModuleName.YAML_CONFIG,
                           "'data_type' must be in " + str(FPDataTypeStrs)
                           + " for cpu runtime")
            else:
                if runtime == RuntimeType.cpu:
                    model_config[YAMLKeyword.data_type] = \
                        FPDataType.fp32_fp32.value
                else:
                    model_config[YAMLKeyword.data_type] = \
                        FPDataType.fp16_fp32.value

        subgraphs = model_config.get(YAMLKeyword.subgraphs, "")
        mace_check(len(subgraphs) > 0, ModuleName.YAML_CONFIG,
                   "at least one subgraph is needed")

        for subgraph in subgraphs:
            for key in [YAMLKeyword.input_tensors,
                        YAMLKeyword.input_shapes,
                        YAMLKeyword.output_tensors,
                        YAMLKeyword.output_shapes]:
                value = subgraph.get(key, "")
                mace_check(value != "", ModuleName.YAML_CONFIG,
                           "'%s' is necessary in subgraph" % key)
                if not isinstance(value, list):
                    subgraph[key] = [value]
                subgraph[key] = [str(v) for v in subgraph[key]]
            input_size = len(subgraph[YAMLKeyword.input_tensors])
            output_size = len(subgraph[YAMLKeyword.output_tensors])

            mace_check(len(subgraph[YAMLKeyword.input_shapes]) == input_size,
                       ModuleName.YAML_CONFIG,
                       "input shapes' size not equal inputs' size.")
            mace_check(len(subgraph[YAMLKeyword.output_shapes]) == output_size,
                       ModuleName.YAML_CONFIG,
                       "output shapes' size not equal outputs' size.")

            for key in [YAMLKeyword.check_tensors,
                        YAMLKeyword.check_shapes]:
                value = subgraph.get(key, "")
                if value != "":
                    if not isinstance(value, list):
                        subgraph[key] = [value]
                    subgraph[key] = [str(v) for v in subgraph[key]]
                else:
                    subgraph[key] = []

            input_data_types = subgraph.get(YAMLKeyword.input_data_types, "")
            if input_data_types:
                if not isinstance(input_data_types, list):
                    subgraph[YAMLKeyword.input_data_types] = [input_data_types]
                for input_data_type in subgraph[YAMLKeyword.input_data_types]:
                    mace_check(input_data_type in InputDataTypeStrs,
                               ModuleName.YAML_CONFIG,
                               "'input_data_types' must be in "
                               + str(InputDataTypeStrs))
            else:
                subgraph[YAMLKeyword.input_data_types] = []

            input_data_formats = subgraph.get(YAMLKeyword.input_data_formats,
                                              [])
            if input_data_formats:
                if not isinstance(input_data_formats, list):
                    subgraph[YAMLKeyword.input_data_formats] =\
                        [input_data_formats] * input_size
                else:
                    mace_check(len(input_data_formats)
                               == input_size,
                               ModuleName.YAML_CONFIG,
                               "input_data_formats should match"
                               " the size of input.")
                for input_data_format in\
                        subgraph[YAMLKeyword.input_data_formats]:
                    mace_check(input_data_format in DataFormatStrs,
                               ModuleName.YAML_CONFIG,
                               "'input_data_formats' must be in "
                               + str(DataFormatStrs) + ", but got "
                               + input_data_format)
            else:
                subgraph[YAMLKeyword.input_data_formats] = \
                    [DataFormat.NHWC] * input_size

            output_data_formats = subgraph.get(YAMLKeyword.output_data_formats,
                                               [])
            if output_data_formats:
                if not isinstance(output_data_formats, list):
                    subgraph[YAMLKeyword.output_data_formats] = \
                        [output_data_formats] * output_size
                else:
                    mace_check(len(output_data_formats)
                               == output_size,
                               ModuleName.YAML_CONFIG,
                               "output_data_formats should match"
                               " the size of output")
                for output_data_format in\
                        subgraph[YAMLKeyword.output_data_formats]:
                    mace_check(output_data_format in DataFormatStrs,
                               ModuleName.YAML_CONFIG,
                               "'output_data_formats' must be in "
                               + str(DataFormatStrs))
            else:
                subgraph[YAMLKeyword.output_data_formats] =\
                    [DataFormat.NHWC] * output_size

            validation_threshold = subgraph.get(
                YAMLKeyword.validation_threshold, {})
            if not isinstance(validation_threshold, dict):
                raise argparse.ArgumentTypeError(
                    'similarity threshold must be a dict.')

            threshold_dict = {
                DeviceType.CPU: ValidationThreshold.cpu_threshold,
                DeviceType.GPU: ValidationThreshold.gpu_threshold,
                DeviceType.HEXAGON + "_QUANTIZE":
                    ValidationThreshold.hexagon_threshold,
                DeviceType.HTA + "_QUANTIZE":
                    ValidationThreshold.hexagon_threshold,
                DeviceType.CPU + "_QUANTIZE":
                    ValidationThreshold.cpu_quantize_threshold,
            }
            for k, v in six.iteritems(validation_threshold):
                if k.upper() == 'DSP':
                    k = DeviceType.HEXAGON
                if k.upper() not in (DeviceType.CPU,
                                     DeviceType.GPU,
                                     DeviceType.HEXAGON,
                                     DeviceType.HTA,
                                     DeviceType.CPU + "_QUANTIZE"):
                    raise argparse.ArgumentTypeError(
                        'Unsupported validation threshold runtime: %s' % k)
                threshold_dict[k.upper()] = v

            subgraph[YAMLKeyword.validation_threshold] = threshold_dict

            validation_inputs_data = subgraph.get(
                YAMLKeyword.validation_inputs_data, [])
            if not isinstance(validation_inputs_data, list):
                subgraph[YAMLKeyword.validation_inputs_data] = [
                    validation_inputs_data]
            else:
                subgraph[YAMLKeyword.validation_inputs_data] = \
                    validation_inputs_data

            onnx_backend = subgraph.get(
                YAMLKeyword.backend, "tensorflow")
            subgraph[YAMLKeyword.backend] = onnx_backend
            validation_outputs_data = subgraph.get(
                YAMLKeyword.validation_outputs_data, [])
            if not isinstance(validation_outputs_data, list):
                subgraph[YAMLKeyword.validation_outputs_data] = [
                    validation_outputs_data]
            else:
                subgraph[YAMLKeyword.validation_outputs_data] = \
                    validation_outputs_data
            input_ranges = subgraph.get(
                YAMLKeyword.input_ranges, [])
            if not isinstance(input_ranges, list):
                subgraph[YAMLKeyword.input_ranges] = [input_ranges]
            else:
                subgraph[YAMLKeyword.input_ranges] = input_ranges
            subgraph[YAMLKeyword.input_ranges] = \
                [str(v) for v in subgraph[YAMLKeyword.input_ranges]]

        for key in [YAMLKeyword.limit_opencl_kernel_time,
                    YAMLKeyword.nnlib_graph_mode,
                    YAMLKeyword.obfuscate,
                    YAMLKeyword.winograd,
                    YAMLKeyword.quantize,
                    YAMLKeyword.change_concat_ranges]:
            value = model_config.get(key, "")
            if value == "":
                model_config[key] = 0

        mace_check(model_config[YAMLKeyword.winograd] in WinogradParameters,
                   ModuleName.YAML_CONFIG,
                   "'winograd' parameters must be in "
                   + str(WinogradParameters) +
                   ". 0 for disable winograd convolution")

        weight_file_path = model_config.get(YAMLKeyword.weight_file_path, "")
        model_config[YAMLKeyword.weight_file_path] = weight_file_path

    return configs


def clear_build_dirs(library_name):
    # make build dir
    if not os.path.exists(BUILD_OUTPUT_DIR):
        os.makedirs(BUILD_OUTPUT_DIR)
    # clear temp build dir
    tmp_build_dir = os.path.join(BUILD_OUTPUT_DIR, library_name,
                                 BUILD_TMP_DIR_NAME)
    if os.path.exists(tmp_build_dir):
        sh.rm('-rf', tmp_build_dir)
    os.makedirs(tmp_build_dir)
    # clear lib dir
    lib_output_dir = os.path.join(
        BUILD_OUTPUT_DIR, library_name, OUTPUT_LIBRARY_DIR_NAME)
    if os.path.exists(lib_output_dir):
        sh.rm('-rf', lib_output_dir)


################################
# convert
################################
def print_configuration(configs):
    title = "Common Configuration"
    header = ["key", "value"]
    data = list()
    data.append([YAMLKeyword.library_name,
                 configs[YAMLKeyword.library_name]])
    data.append([YAMLKeyword.target_abis,
                 configs[YAMLKeyword.target_abis]])
    data.append([YAMLKeyword.target_socs,
                 configs[YAMLKeyword.target_socs]])
    data.append([YAMLKeyword.model_graph_format,
                 configs[YAMLKeyword.model_graph_format]])
    data.append([YAMLKeyword.model_data_format,
                 configs[YAMLKeyword.model_data_format]])
    MaceLogger.summary(StringFormatter.table(header, data, title))


def download_file(url, dst, num_retries=3):
    from six.moves import urllib

    try:
        urllib.request.urlretrieve(url, dst)
        MaceLogger.info('\nDownloaded successfully.')
    except (urllib.error.ContentTooShortError, urllib.error.HTTPError,
            urllib.error.URLError) as e:
        MaceLogger.warning('Download error:' + str(e))
        if num_retries > 0:
            return download_file(url, dst, num_retries - 1)
        else:
            return False
    return True


def get_model_files(model_file_path,
                    model_sha256_checksum,
                    model_output_dir,
                    weight_file_path="",
                    weight_sha256_checksum="",
                    quantize_range_file_path=""):
    model_file = model_file_path
    weight_file = weight_file_path
    quantize_range_file = quantize_range_file_path

    if model_file_path.startswith("http://") or \
            model_file_path.startswith("https://"):
        model_file = model_output_dir + "/" + md5sum(model_file_path) + ".pb"
        if not os.path.exists(model_file) or \
                sha256_checksum(model_file) != model_sha256_checksum:
            MaceLogger.info("Downloading model, please wait ...")
            if not download_file(model_file_path, model_file):
                MaceLogger.error(ModuleName.MODEL_CONVERTER,
                                 "Model download failed.")

    if sha256_checksum(model_file) != model_sha256_checksum:
        MaceLogger.error(ModuleName.MODEL_CONVERTER,
                         "model file sha256checksum not match")

    if weight_file_path.startswith("http://") or \
            weight_file_path.startswith("https://"):
        weight_file = \
            model_output_dir + "/" + md5sum(weight_file_path) + ".caffemodel"
        if not os.path.exists(weight_file) or \
                sha256_checksum(weight_file) != weight_sha256_checksum:
            MaceLogger.info("Downloading model weight, please wait ...")
            if not download_file(weight_file_path, weight_file):
                MaceLogger.error(ModuleName.MODEL_CONVERTER,
                                 "Model download failed.")

    if weight_file:
        if sha256_checksum(weight_file) != weight_sha256_checksum:
            MaceLogger.error(ModuleName.MODEL_CONVERTER,
                             "weight file sha256checksum not match")

    if quantize_range_file_path.startswith("http://") or \
            quantize_range_file_path.startswith("https://"):
        quantize_range_file = \
            model_output_dir + "/" + md5sum(quantize_range_file_path) \
            + ".range"
        if not download_file(quantize_range_file_path, quantize_range_file):
            MaceLogger.error(ModuleName.MODEL_CONVERTER,
                             "Model range file download failed.")
    return model_file, weight_file, quantize_range_file


def convert_model(configs, cl_mem_type):
    # Remove previous output dirs
    library_name = configs[YAMLKeyword.library_name]
    if not os.path.exists(BUILD_OUTPUT_DIR):
        os.makedirs(BUILD_OUTPUT_DIR)
    elif os.path.exists(os.path.join(BUILD_OUTPUT_DIR, library_name)):
        sh.rm("-rf", os.path.join(BUILD_OUTPUT_DIR, library_name))
    os.makedirs(os.path.join(BUILD_OUTPUT_DIR, library_name))
    if not os.path.exists(BUILD_DOWNLOADS_DIR):
        os.makedirs(BUILD_DOWNLOADS_DIR)

    model_output_dir = \
        '%s/%s/%s' % (BUILD_OUTPUT_DIR, library_name, MODEL_OUTPUT_DIR_NAME)
    model_header_dir = \
        '%s/%s/%s' % (BUILD_OUTPUT_DIR, library_name, MODEL_HEADER_DIR_PATH)
    # clear output dir
    if os.path.exists(model_output_dir):
        sh.rm("-rf", model_output_dir)
    os.makedirs(model_output_dir)
    if os.path.exists(model_header_dir):
        sh.rm("-rf", model_header_dir)

    embed_model_data = \
        configs[YAMLKeyword.model_data_format] == ModelFormat.code

    if os.path.exists(MODEL_CODEGEN_DIR):
        sh.rm("-rf", MODEL_CODEGEN_DIR)
    if os.path.exists(ENGINE_CODEGEN_DIR):
        sh.rm("-rf", ENGINE_CODEGEN_DIR)

    if configs[YAMLKeyword.model_graph_format] == ModelFormat.code:
        os.makedirs(model_header_dir)
        sh_commands.gen_mace_engine_factory_source(
            configs[YAMLKeyword.models].keys(),
            embed_model_data)
        sh.cp("-f", glob.glob("mace/codegen/engine/*.h"),
              model_header_dir)

    for model_name in configs[YAMLKeyword.models]:
        MaceLogger.header(
            StringFormatter.block("Convert %s model" % model_name))
        model_config = configs[YAMLKeyword.models][model_name]
        runtime = model_config[YAMLKeyword.runtime]
        if cl_mem_type:
            model_config[YAMLKeyword.cl_mem_type] = cl_mem_type
        else:
            model_config[YAMLKeyword.cl_mem_type] = "image"

        model_file_path, weight_file_path, quantize_range_file_path = \
            get_model_files(
                model_config[YAMLKeyword.model_file_path],
                model_config[YAMLKeyword.model_sha256_checksum],
                BUILD_DOWNLOADS_DIR,
                model_config[YAMLKeyword.weight_file_path],
                model_config[YAMLKeyword.weight_sha256_checksum],
                model_config.get(YAMLKeyword.quantize_range_file, ""))

        data_type = model_config[YAMLKeyword.data_type]
        # TODO(liuqi): support multiple subgraphs
        subgraphs = model_config[YAMLKeyword.subgraphs]

        model_codegen_dir = "%s/%s" % (MODEL_CODEGEN_DIR, model_name)
        sh_commands.gen_model_code(
            model_codegen_dir,
            model_config[YAMLKeyword.platform],
            model_file_path,
            weight_file_path,
            model_config[YAMLKeyword.model_sha256_checksum],
            model_config[YAMLKeyword.weight_sha256_checksum],
            ",".join(subgraphs[0][YAMLKeyword.input_tensors]),
            ",".join(subgraphs[0][YAMLKeyword.input_data_formats]),
            ",".join(subgraphs[0][YAMLKeyword.output_tensors]),
            ",".join(subgraphs[0][YAMLKeyword.output_data_formats]),
            ",".join(subgraphs[0][YAMLKeyword.check_tensors]),
            runtime,
            model_name,
            ":".join(subgraphs[0][YAMLKeyword.input_shapes]),
            ":".join(subgraphs[0][YAMLKeyword.input_ranges]),
            ":".join(subgraphs[0][YAMLKeyword.output_shapes]),
            ":".join(subgraphs[0][YAMLKeyword.check_shapes]),
            model_config[YAMLKeyword.nnlib_graph_mode],
            embed_model_data,
            model_config[YAMLKeyword.winograd],
            model_config[YAMLKeyword.quantize],
            quantize_range_file_path,
            model_config[YAMLKeyword.change_concat_ranges],
            model_config[YAMLKeyword.obfuscate],
            configs[YAMLKeyword.model_graph_format],
            data_type,
            model_config[YAMLKeyword.cl_mem_type],
            ",".join(model_config.get(YAMLKeyword.graph_optimize_options, [])))

        if configs[YAMLKeyword.model_graph_format] == ModelFormat.file:
            sh.mv("-f",
                  '%s/%s.pb' % (model_codegen_dir, model_name),
                  model_output_dir)
            sh.mv("-f",
                  '%s/%s.data' % (model_codegen_dir, model_name),
                  model_output_dir)
        else:
            if not embed_model_data:
                sh.mv("-f",
                      '%s/%s.data' % (model_codegen_dir, model_name),
                      model_output_dir)
            sh.cp("-f", glob.glob("mace/codegen/models/*/*.h"),
                  model_header_dir)

        MaceLogger.summary(
            StringFormatter.block("Model %s converted" % model_name))


def build_model_lib(configs, address_sanitizer, debug_mode):
    MaceLogger.header(StringFormatter.block("Building model library"))

    # create model library dir
    library_name = configs[YAMLKeyword.library_name]
    for target_abi in configs[YAMLKeyword.target_abis]:
        model_lib_output_path = get_model_lib_output_path(library_name,
                                                          target_abi)
        library_out_dir = os.path.dirname(model_lib_output_path)
        if not os.path.exists(library_out_dir):
            os.makedirs(library_out_dir)
        toolchain = infer_toolchain(target_abi)
        sh_commands.bazel_build(
            MODEL_LIB_TARGET,
            abi=target_abi,
            toolchain=toolchain,
            enable_hexagon=get_hexagon_mode(configs),
            enable_hta=get_hta_mode(configs),
            enable_opencl=get_opencl_mode(configs),
            enable_quantize=get_quantize_mode(configs),
            address_sanitizer=address_sanitizer,
            symbol_hidden=get_symbol_hidden_mode(debug_mode),
            debug_mode=debug_mode
        )

        sh.cp("-f", MODEL_LIB_PATH, model_lib_output_path)


def print_library_summary(configs):
    library_name = configs[YAMLKeyword.library_name]
    title = "Library"
    header = ["key", "value"]
    data = list()
    data.append(["MACE Model Path",
                 "%s/%s/%s"
                 % (BUILD_OUTPUT_DIR, library_name, MODEL_OUTPUT_DIR_NAME)])
    if configs[YAMLKeyword.model_graph_format] == ModelFormat.code:
        data.append(["MACE Model Header Path",
                     "%s/%s/%s"
                     % (BUILD_OUTPUT_DIR, library_name,
                        MODEL_HEADER_DIR_PATH)])

    MaceLogger.summary(StringFormatter.table(header, data, title))


def convert_func(flags):
    configs = format_model_config(flags)

    print_configuration(configs)

    convert_model(configs, flags.cl_mem_type)

    if configs[YAMLKeyword.model_graph_format] == ModelFormat.code:
        build_model_lib(configs, flags.address_sanitizer, flags.debug_mode)

    print_library_summary(configs)


################################
# run
################################
def report_run_statistics(stdout,
                          abi,
                          serialno,
                          model_name,
                          device_type,
                          output_dir,
                          tuned):
    metrics = [0] * 3
    for line in stdout.split('\n'):
        line = line.strip()
        parts = line.split()
        if len(parts) == 4 and parts[0].startswith("time"):
            metrics[0] = str(float(parts[1]))
            metrics[1] = str(float(parts[2]))
            metrics[2] = str(float(parts[3]))
            break

    device_name = ""
    target_soc = ""
    if abi != "host":
        props = sh_commands.adb_getprop_by_serialno(serialno)
        device_name = props.get("ro.product.model", "")
        target_soc = props.get("ro.board.platform", "")

    report_filename = output_dir + "/report.csv"
    if not os.path.exists(report_filename):
        with open(report_filename, 'w') as f:
            f.write("model_name,device_name,soc,abi,runtime,"
                    "init(ms),warmup(ms),run_avg(ms),tuned\n")

    data_str = "{model_name},{device_name},{soc},{abi},{device_type}," \
               "{init},{warmup},{run_avg},{tuned}\n" \
        .format(model_name=model_name,
                device_name=device_name,
                soc=target_soc,
                abi=abi,
                device_type=device_type,
                init=metrics[0],
                warmup=metrics[1],
                run_avg=metrics[2],
                tuned=tuned)
    with open(report_filename, 'a') as f:
        f.write(data_str)


def build_mace_run(configs, target_abi, toolchain, enable_openmp,
                   address_sanitizer, mace_lib_type, debug_mode):
    library_name = configs[YAMLKeyword.library_name]

    build_tmp_binary_dir = get_build_binary_dir(library_name, target_abi)
    if os.path.exists(build_tmp_binary_dir):
        sh.rm("-rf", build_tmp_binary_dir)
    os.makedirs(build_tmp_binary_dir)

    mace_run_target = MACE_RUN_STATIC_TARGET
    if mace_lib_type == MACELibType.dynamic:
        mace_run_target = MACE_RUN_DYNAMIC_TARGET
    build_arg = ""
    if configs[YAMLKeyword.model_graph_format] == ModelFormat.code:
        mace_check(os.path.exists(ENGINE_CODEGEN_DIR),
                   ModuleName.RUN,
                   "You should convert model first.")
        build_arg = "--per_file_copt=mace/tools/validation/mace_run.cc@-DMODEL_GRAPH_FORMAT_CODE"  # noqa

    sh_commands.bazel_build(
        mace_run_target,
        abi=target_abi,
        toolchain=toolchain,
        enable_hexagon=get_hexagon_mode(configs),
        enable_hta=get_hta_mode(configs),
        enable_openmp=enable_openmp,
        enable_opencl=get_opencl_mode(configs),
        enable_quantize=get_quantize_mode(configs),
        address_sanitizer=address_sanitizer,
        symbol_hidden=get_symbol_hidden_mode(debug_mode, mace_lib_type),
        debug_mode=debug_mode,
        extra_args=build_arg
    )
    sh_commands.update_mace_run_binary(build_tmp_binary_dir,
                                       mace_lib_type == MACELibType.dynamic)


def build_example(configs, target_abi, toolchain, enable_openmp, mace_lib_type,
                  cl_binary_to_code, device, debug_mode):
    library_name = configs[YAMLKeyword.library_name]

    build_tmp_binary_dir = get_build_binary_dir(library_name, target_abi)
    if os.path.exists(build_tmp_binary_dir):
        sh.rm("-rf", build_tmp_binary_dir)
    os.makedirs(build_tmp_binary_dir)

    if cl_binary_to_code:
        sh_commands.gen_opencl_binary_cpps(
            get_opencl_binary_output_path(
                library_name, target_abi, device),
            get_opencl_parameter_output_path(
                library_name, target_abi, device),
            OPENCL_CODEGEN_DIR + '/opencl_binary.cc',
            OPENCL_CODEGEN_DIR + '/opencl_parameter.cc')
    else:
        sh_commands.gen_opencl_binary_cpps(
            "", "",
            OPENCL_CODEGEN_DIR + '/opencl_binary.cc',
            OPENCL_CODEGEN_DIR + '/opencl_parameter.cc')

    libmace_target = LIBMACE_STATIC_TARGET
    if mace_lib_type == MACELibType.dynamic:
        libmace_target = LIBMACE_SO_TARGET

    sh_commands.bazel_build(libmace_target,
                            abi=target_abi,
                            toolchain=toolchain,
                            enable_openmp=enable_openmp,
                            enable_opencl=get_opencl_mode(configs),
                            enable_quantize=get_quantize_mode(configs),
                            enable_hexagon=get_hexagon_mode(configs),
                            enable_hta=get_hta_mode(configs),
                            address_sanitizer=flags.address_sanitizer,
                            symbol_hidden=get_symbol_hidden_mode(debug_mode, mace_lib_type),  # noqa
                            debug_mode=debug_mode)

    if os.path.exists(LIB_CODEGEN_DIR):
        sh.rm("-rf", LIB_CODEGEN_DIR)
    sh.mkdir("-p", LIB_CODEGEN_DIR)

    build_arg = ""
    if configs[YAMLKeyword.model_graph_format] == ModelFormat.code:
        mace_check(os.path.exists(ENGINE_CODEGEN_DIR),
                   ModuleName.RUN,
                   "You should convert model first.")
        model_lib_path = get_model_lib_output_path(library_name,
                                                   target_abi)
        sh.cp("-f", model_lib_path, LIB_CODEGEN_DIR)
        build_arg = "--per_file_copt=mace/examples/cli/example.cc@-DMODEL_GRAPH_FORMAT_CODE"  # noqa

    if mace_lib_type == MACELibType.dynamic:
        example_target = EXAMPLE_DYNAMIC_TARGET
        sh.cp("-f", LIBMACE_DYNAMIC_PATH, LIB_CODEGEN_DIR)
    else:
        example_target = EXAMPLE_STATIC_TARGET
        sh.cp("-f", LIBMACE_STATIC_PATH, LIB_CODEGEN_DIR)

    sh_commands.bazel_build(example_target,
                            abi=target_abi,
                            toolchain=toolchain,
                            enable_openmp=enable_openmp,
                            enable_opencl=get_opencl_mode(configs),
                            enable_quantize=get_quantize_mode(configs),
                            enable_hexagon=get_hexagon_mode(configs),
                            enable_hta=get_hta_mode(configs),
                            address_sanitizer=flags.address_sanitizer,
                            debug_mode=debug_mode,
                            extra_args=build_arg)

    target_bin = "/".join(sh_commands.bazel_target_to_bin(example_target))
    sh.cp("-f", target_bin, build_tmp_binary_dir)
    if os.path.exists(LIB_CODEGEN_DIR):
        sh.rm("-rf", LIB_CODEGEN_DIR)


def print_package_summary(package_path):
    title = "Library"
    header = ["key", "value"]
    data = list()
    data.append(["MACE Model package Path",
                 package_path])

    MaceLogger.summary(StringFormatter.table(header, data, title))


def run_mace(flags):
    configs = format_model_config(flags)

    clear_build_dirs(configs[YAMLKeyword.library_name])

    target_socs = configs[YAMLKeyword.target_socs]
    device_list = DeviceManager.list_devices(flags.device_yml)
    if target_socs and TargetSOCTag.all not in target_socs:
        device_list = [dev for dev in device_list
                       if dev[YAMLKeyword.target_socs].lower() in target_socs]
    for target_abi in configs[YAMLKeyword.target_abis]:
        if flags.target_socs == TargetSOCTag.random:
            target_devices = sh_commands.choose_a_random_device(
                device_list, target_abi)
        else:
            target_devices = device_list
        # build target
        for dev in target_devices:
            if target_abi in dev[YAMLKeyword.target_abis]:
                # get toolchain
                toolchain = infer_toolchain(target_abi)
                device = DeviceWrapper(dev)
                if flags.example:
                    build_example(configs,
                                  target_abi,
                                  toolchain,
                                  not flags.disable_openmp,
                                  flags.mace_lib_type,
                                  flags.cl_binary_to_code,
                                  device,
                                  flags.debug_mode)
                else:
                    build_mace_run(configs,
                                   target_abi,
                                   toolchain,
                                   not flags.disable_openmp,
                                   flags.address_sanitizer,
                                   flags.mace_lib_type,
                                   flags.debug_mode)
                # run
                start_time = time.time()
                with device.lock():
                    device.run_specify_abi(flags, configs, target_abi)
                elapse_minutes = (time.time() - start_time) / 60
                print("Elapse time: %f minutes." % elapse_minutes)
            elif dev[YAMLKeyword.device_name] != SystemType.host:
                six.print_('The device with soc %s do not support abi %s' %
                           (dev[YAMLKeyword.target_socs], target_abi),
                           file=sys.stderr)

    # package the output files
    package_path = sh_commands.packaging_lib(BUILD_OUTPUT_DIR,
                                             configs[YAMLKeyword.library_name])
    print_package_summary(package_path)


################################
#  benchmark model
################################
def build_benchmark_model(configs,
                          target_abi,
                          toolchain,
                          enable_openmp,
                          mace_lib_type,
                          debug_mode):
    library_name = configs[YAMLKeyword.library_name]

    link_dynamic = mace_lib_type == MACELibType.dynamic
    if link_dynamic:
        benchmark_target = BM_MODEL_DYNAMIC_TARGET
    else:
        benchmark_target = BM_MODEL_STATIC_TARGET

    build_arg = ""
    if configs[YAMLKeyword.model_graph_format] == ModelFormat.code:
        mace_check(os.path.exists(ENGINE_CODEGEN_DIR),
                   ModuleName.BENCHMARK,
                   "You should convert model first.")
        build_arg = "--per_file_copt=mace/benchmark/benchmark_model.cc@-DMODEL_GRAPH_FORMAT_CODE"  # noqa

    sh_commands.bazel_build(benchmark_target,
                            abi=target_abi,
                            toolchain=toolchain,
                            enable_openmp=enable_openmp,
                            enable_opencl=get_opencl_mode(configs),
                            enable_quantize=get_quantize_mode(configs),
                            enable_hexagon=get_hexagon_mode(configs),
                            enable_hta=get_hta_mode(configs),
                            symbol_hidden=get_symbol_hidden_mode(debug_mode, mace_lib_type),  # noqa
                            debug_mode=debug_mode,
                            extra_args=build_arg)
    # clear tmp binary dir
    build_tmp_binary_dir = get_build_binary_dir(library_name, target_abi)
    if os.path.exists(build_tmp_binary_dir):
        sh.rm("-rf", build_tmp_binary_dir)
    os.makedirs(build_tmp_binary_dir)

    target_bin = "/".join(sh_commands.bazel_target_to_bin(benchmark_target))
    sh.cp("-f", target_bin, build_tmp_binary_dir)


def benchmark_model(flags):
    configs = format_model_config(flags)

    clear_build_dirs(configs[YAMLKeyword.library_name])

    target_socs = configs[YAMLKeyword.target_socs]
    device_list = DeviceManager.list_devices(flags.device_yml)
    if target_socs and TargetSOCTag.all not in target_socs:
        device_list = [dev for dev in device_list
                       if dev[YAMLKeyword.target_socs].lower() in target_socs]
    for target_abi in configs[YAMLKeyword.target_abis]:
        if flags.target_socs == TargetSOCTag.random:
            target_devices = sh_commands.choose_a_random_device(
                device_list, target_abi)
        else:
            target_devices = device_list
        # build benchmark_model binary
        for dev in target_devices:
            if target_abi in dev[YAMLKeyword.target_abis]:
                toolchain = infer_toolchain(target_abi)
                build_benchmark_model(configs,
                                      target_abi,
                                      toolchain,
                                      not flags.disable_openmp,
                                      flags.mace_lib_type,
                                      flags.debug_mode)
                device = DeviceWrapper(dev)
                start_time = time.time()
                with device.lock():
                    device.bm_specific_target(flags, configs, target_abi)
                elapse_minutes = (time.time() - start_time) / 60
                print("Elapse time: %f minutes." % elapse_minutes)
            else:
                six.print_('There is no abi %s with soc %s' %
                           (target_abi, dev[YAMLKeyword.target_socs]),
                           file=sys.stderr)


################################
# parsing arguments
################################
def str2bool(v):
    if v.lower() in ('yes', 'true', 't', 'y', '1'):
        return True
    elif v.lower() in ('no', 'false', 'f', 'n', '0'):
        return False
    else:
        raise argparse.ArgumentTypeError('Boolean value expected.')


def str_to_caffe_env_type(v):
    if v.lower() == 'docker':
        return CaffeEnvType.DOCKER
    elif v.lower() == 'local':
        return CaffeEnvType.LOCAL
    else:
        raise argparse.ArgumentTypeError('[docker | local] expected.')


def str_to_mace_lib_type(v):
    if v.lower() == 'dynamic':
        return MACELibType.dynamic
    elif v.lower() == 'static':
        return MACELibType.static
    else:
        raise argparse.ArgumentTypeError('[dynamic| static] expected.')


def parse_args():
    """Parses command line arguments."""
    all_type_parent_parser = argparse.ArgumentParser(add_help=False)
    all_type_parent_parser.add_argument(
        '--config',
        type=str,
        default="",
        required=True,
        help="the path of model yaml configuration file.")
    all_type_parent_parser.add_argument(
        "--model_graph_format",
        type=str,
        default="",
        help="[file, code], MACE Model graph format.")
    all_type_parent_parser.add_argument(
        "--model_data_format",
        type=str,
        default="",
        help="['file', 'code'], MACE Model data format.")
    all_type_parent_parser.add_argument(
        "--target_abis",
        type=str,
        default="",
        help="Target ABIs, comma seperated list.")
    all_type_parent_parser.add_argument(
        "--target_socs",
        type=str,
        default="",
        help="Target SOCs, comma seperated list.")
    all_type_parent_parser.add_argument(
        "--debug_mode",
        action="store_true",
        help="Reserve debug symbols.")
    convert_run_parent_parser = argparse.ArgumentParser(add_help=False)
    convert_run_parent_parser.add_argument(
        '--address_sanitizer',
        action="store_true",
        help="Whether to use address sanitizer to check memory error")
    run_bm_parent_parser = argparse.ArgumentParser(add_help=False)
    run_bm_parent_parser.add_argument(
        "--mace_lib_type",
        type=str_to_mace_lib_type,
        default=DefaultValues.mace_lib_type,
        help="[static | dynamic], Which type MACE library to use.")
    run_bm_parent_parser.add_argument(
        "--disable_openmp",
        action="store_true",
        help="Disable openmp for multiple thread.")
    run_bm_parent_parser.add_argument(
        "--omp_num_threads",
        type=int,
        default=DefaultValues.omp_num_threads,
        help="num of openmp threads")
    run_bm_parent_parser.add_argument(
        "--cpu_affinity_policy",
        type=int,
        default=DefaultValues.cpu_affinity_policy,
        help="0:AFFINITY_NONE/1:AFFINITY_BIG_ONLY/2:AFFINITY_LITTLE_ONLY")
    run_bm_parent_parser.add_argument(
        "--gpu_perf_hint",
        type=int,
        default=DefaultValues.gpu_perf_hint,
        help="0:DEFAULT/1:LOW/2:NORMAL/3:HIGH")
    run_bm_parent_parser.add_argument(
        "--gpu_priority_hint",
        type=int,
        default=DefaultValues.gpu_priority_hint,
        help="0:DEFAULT/1:LOW/2:NORMAL/3:HIGH")
    run_bm_parent_parser.add_argument(
        "--device_yml",
        type=str,
        default='',
        help='embedded linux device config yml file'
    )
    parser = argparse.ArgumentParser()
    subparsers = parser.add_subparsers()
    convert = subparsers.add_parser(
        'convert',
        parents=[all_type_parent_parser, convert_run_parent_parser],
        help='convert to mace model (file or code)')
    convert.add_argument(
        "--cl_mem_type",
        type=str,
        default=None,
        help="Which type of OpenCL memory type to use [image | buffer].")
    convert.set_defaults(func=convert_func)
    run = subparsers.add_parser(
        'run',
        parents=[all_type_parent_parser, run_bm_parent_parser,
                 convert_run_parent_parser],
        help='run model in command line')
    run.set_defaults(func=run_mace)
    run.add_argument(
        "--disable_tuning",
        action="store_true",
        help="Disable tuning for specific thread.")
    run.add_argument(
        "--round",
        type=int,
        default=1,
        help="The model running round.")
    run.add_argument(
        "--validate",
        action="store_true",
        help="whether to verify the results are consistent with "
             "the frameworks.")
    run.add_argument(
        "--layers",
        type=str,
        default="-1",
        help="'start_layer:end_layer' or 'layer', similar to python slice."
             " Use with --validate flag.")
    run.add_argument(
        "--caffe_env",
        type=str_to_caffe_env_type,
        default='docker',
        help="[docker | local] you can specific caffe environment for"
             " validation. local environment or caffe docker image.")
    run.add_argument(
        "--vlog_level",
        type=int,
        default=0,
        help="[1~5]. Verbose log level for debug.")
    run.add_argument(
        "--gpu_out_of_range_check",
        action="store_true",
        help="Enable out of memory check for gpu.")
    run.add_argument(
        "--restart_round",
        type=int,
        default=1,
        help="restart round between run.")
    run.add_argument(
        "--report",
        action="store_true",
        help="print run statistics report.")
    run.add_argument(
        "--report_dir",
        type=str,
        default="",
        help="print run statistics report.")
    run.add_argument(
        "--runtime_failure_ratio",
        type=float,
        default=0.0,
        help="[mock runtime failure ratio].")
    run.add_argument(
        "--example",
        action="store_true",
        help="whether to run example.")
    run.add_argument(
        "--quantize_stat",
        action="store_true",
        help="whether to stat quantization range.")
    run.add_argument(
        "--input_dir",
        type=str,
        default="",
        help="quantize stat input dir.")
    run.add_argument(
        "--output_dir",
        type=str,
        default="",
        help="quantize stat output dir.")
    run.add_argument(
        "--cl_binary_to_code",
        action="store_true",
        help="convert OpenCL binaries to cpp.")
    benchmark = subparsers.add_parser(
        'benchmark',
        parents=[all_type_parent_parser, run_bm_parent_parser],
        help='benchmark model for detail information')
    benchmark.set_defaults(func=benchmark_model)
    benchmark.add_argument(
        "--max_num_runs",
        type=int,
        default=100,
        help="max number of runs.")
    benchmark.add_argument(
        "--max_seconds",
        type=float,
        default=10.0,
        help="max number of seconds to run.")
    return parser.parse_known_args()


if __name__ == "__main__":
    flags, unparsed = parse_args()
    flags.func(flags)