!16228 se-resnet50 & resnext50 310 infer

From: @zhangxiaoxiao16 Reviewed-by: @c_34,@wuxuejian Signed-off-by: @c_34
2021-05-12 15:44:28 +08:00 · 2021-05-12 15:44:28 +08:00 · d32f041248
parent 8af780ff13 1d47abb107
commit d32f041248
15 changed files with 693 additions and 24 deletions
--- a/model_zoo/official/cv/resnet/README.md
+++ b/model_zoo/official/cv/resnet/README.md
@ -521,9 +521,10 @@ Current batch_Size can only be set to 1. The precision calculation process needs

 ```shell
 # Ascend310 inference
-bash run_infer_310.sh [MINDIR_PATH] [DATA_PATH] [DEVICE_ID]
+bash run_infer_310.sh [MINDIR_PATH] [NET_TYPE] [DATA_PATH] [DEVICE_ID]
 ```

+- `NET_TYPE` can choose from [resnet18, se-resnet50].
 - `DEVICE_ID` is optional, default value is 0.

 ### result
--- a/model_zoo/official/cv/resnet/README_CN.md
+++ b/model_zoo/official/cv/resnet/README_CN.md
@ -487,9 +487,10 @@ python export.py --ckpt_file [CKPT_PATH] --file_name [FILE_NAME] --file_format [

 ```shell
 # Ascend310 inference
-bash run_infer_310.sh [MINDIR_PATH] [DATA_PATH] [DEVICE_ID]
+bash run_infer_310.sh [MINDIR_PATH] [NET_TYPE] [DATA_PATH] [DEVICE_ID]
 ```

+- `NET_TYPE` 选择范围：[resnet18, se-resnet50]。
 - `DEVICE_ID` 可选，默认值为0。

 ### 结果
--- a/model_zoo/official/cv/resnet/ascend310_infer/src/main.cc
+++ b/model_zoo/official/cv/resnet/ascend310_infer/src/main.cc
@ -53,6 +53,7 @@ using mindspore::dataset::Execute;

 DEFINE_string(mindir_path, "", "mindir path");
 DEFINE_string(dataset_path, ".", "dataset path");
+DEFINE_string(network, "resnet18", "networktype");
 DEFINE_int32(device_id, 0, "device id");

 int main(int argc, char **argv) {
@ -83,19 +84,26 @@ int main(int argc, char **argv) {

  std::map<double, double> costTime_map;
  size_t size = all_files.size();
-  // Define transform
-  std::vector<int32_t> crop_paras = {224};
-  std::vector<int32_t> resize_paras = {256};
-  std::vector<float> mean = {0.485 * 255, 0.456 * 255, 0.406 * 255};
-  std::vector<float> std = {0.229 * 255, 0.224 * 255, 0.225 * 255};

  std::shared_ptr<TensorTransform> decode(new Decode());
-  std::shared_ptr<TensorTransform> resize(new Resize(resize_paras));
-  std::shared_ptr<TensorTransform> centercrop(new CenterCrop(crop_paras));
-  std::shared_ptr<TensorTransform> normalize(new Normalize(mean, std));
+  std::shared_ptr<TensorTransform> resize(new Resize({256}));
+  std::shared_ptr<TensorTransform> centercrop(new CenterCrop({224}));
+  std::shared_ptr<TensorTransform> normalize(new Normalize({123.675, 116.28, 103.53},
+                                                           {58.395, 57.12, 57.375}));
  std::shared_ptr<TensorTransform> hwc2chw(new HWC2CHW());

-  std::vector<std::shared_ptr<TensorTransform>> trans_list = {decode, resize, centercrop, normalize, hwc2chw};
+  std::shared_ptr<TensorTransform> sr_resize(new Resize({292}));
+  std::shared_ptr<TensorTransform> sr_centercrop(new CenterCrop({256}));
+  std::shared_ptr<TensorTransform> sr_normalize(new Normalize({123.68, 116.78, 103.94},
+                                                              {1.0, 1.0, 1.0}));
+
+  std::vector<std::shared_ptr<TensorTransform>> trans_list;
+
+  if (FLAGS_network == "se-resnet50") {
+    trans_list = {decode, sr_resize, sr_centercrop, sr_normalize, hwc2chw};
+  } else {
+    trans_list = {decode, resize, centercrop, normalize, hwc2chw};
+  }
  mindspore::dataset::Execute SingleOp(trans_list);

  for (size_t i = 0; i < size; ++i) {
--- a/model_zoo/official/cv/resnet/scripts/run_infer_310.sh
+++ b/model_zoo/official/cv/resnet/scripts/run_infer_310.sh
@ -14,8 +14,9 @@
 # limitations under the License.
 # ============================================================================

-if [[ $# -lt 2 || $# -gt 3 ]]; then
-    echo "Usage: sh run_infer_310.sh [MINDIR_PATH] [DATA_PATH] [DEVICE_ID]
+if [[ $# -lt 3 || $# -gt 4 ]]; then
+    echo "Usage: bash run_infer_310.sh [MINDIR_PATH] [NET_TYPE] [DATA_PATH] [DEVICE_ID]
+    NET_TYPE can choose from [resnet18, se-resnet50]
    DEVICE_ID is optional, it can be set by environment variable device_id, otherwise the value is zero"
 exit 1
 fi
@ -28,15 +29,23 @@ get_real_path(){
    fi
 }
 model=$(get_real_path $1)
-data_path=$(get_real_path $2)
+if [ $2 == 'resnet18' ] || [ $2 == 'se-resnet50' ]; then
+  network=$2
+else
+  echo "NET_TYPE can choose from [resnet18, se-resnet50]"
+  exit 1
+fi
+
+data_path=$(get_real_path $3)

 device_id=0
-if [ $# == 3 ]; then    
-    device_id=$3
+if [ $# == 4 ]; then
+    device_id=$4
 fi

 echo "mindir name: "$model
 echo "dataset path: "$data_path
+echo "network: "$network
 echo "device id: "$device_id

 export ASCEND_HOME=/usr/local/Ascend/
@ -59,7 +68,7 @@ function compile_app()
    if [ -f "Makefile" ]; then
        make clean
    fi
-    sh build.sh &> build.log    
+    bash build.sh &> build.log
 }

 function infer()
@ -73,7 +82,7 @@ function infer()
    fi
    mkdir result_Files
    mkdir time_Result
-    ../ascend310_infer/src/main --mindir_path=$model --dataset_path=$data_path --device_id=$device_id  &> infer.log
+    ../ascend310_infer/src/main --mindir_path=$model --dataset_path=$data_path --network=$network --device_id=$device_id  &> infer.log
 }

 function cal_acc()
--- a/model_zoo/official/cv/resnext50/README.md
+++ b/model_zoo/official/cv/resnext50/README.md
@ -13,6 +13,7 @@
    - [Training Process](#training-process)
    - [Evaluation Process](#evaluation-process)
    - [Model Export](#model-export)
+    - [Inference Process](#inference-process)
 - [Model Description](#model-description)
    - [Performance](#performance)  
        - [Training Performance](#evaluation-performance)
@ -212,7 +213,29 @@ acc=93.88%(TOP5)
 python export.py --device_target [PLATFORM] --ckpt_file [CKPT_PATH] --file_format [EXPORT_FORMAT]
 ```

-`EXPORT_FORMAT` should be in ["AIR", "ONNX", "MINDIR"]
+The `ckpt_file` parameter is required.
+`EXPORT_FORMAT` should be in ["AIR", "MINDIR"].
+
+## [Inference Process](#contents)
+
+### Usage
+
+Before performing inference, the mindir file must be exported by export.py. Currently, only batchsize 1 is supported.
+
+```shell
+# Ascend310 inference
+bash run_infer_310.sh [MINDIR_PATH] [DATA_PATH] [DEVICE_ID]
+```
+
+`DEVICE_ID` is optional, default value is 0.
+
+### result
+
+Inference result is saved in current path, you can find result in acc.log file.
+
+```log
+Total data:50000, top1 accuracy:0.78462, top5 accuracy:0.94182
+```

 # [Model description](#contents)

--- a/model_zoo/official/cv/resnext50/README_CN.md
+++ b/model_zoo/official/cv/resnext50/README_CN.md
@ -18,6 +18,9 @@
            - [样例](#样例-1)
            - [结果](#结果)
    - [模型导出](#模型导出)
+    - [推理过程](#推理过程)
+        - [用法](#用法-2)
+        - [结果](#结果-2)
 - [模型描述](#模型描述)
    - [性能](#性能)
        - [训练性能](#训练性能)
@ -216,7 +219,30 @@ acc=93.88%(TOP5)
 python export.py --device_target [PLATFORM] --ckpt_file [CKPT_PATH] --file_format [EXPORT_FORMAT]
 ```

-`EXPORT_FORMAT` 可选 ["AIR", "ONNX", "MINDIR"].
+`ckpt_file` 参数为必填项。
+`EXPORT_FORMAT` 可选 ["AIR", "MINDIR"]。
+
+## [推理过程](#contents)
+
+### 用法
+
+在执行推理之前，需要通过export.py导出mindir文件。
+目前仅可处理batch_Size为1。
+
+```shell
+#Ascend310 推理
+bash run_infer_310.sh [MINDIR_PATH] [DATA_PATH] [DEVICE_ID]
+```
+
+`DEVICE_ID` 可选，默认值为 0。
+
+### 结果
+
+推理结果保存在当前路径，可在acc.log中看到最终精度结果。
+
+```log
+Total data:50000, top1 accuracy:0.78462, top5 accuracy:0.94182
+```

 # 模型描述

--- a/model_zoo/official/cv/resnext50/ascend310_infer/inc/utils.h
+++ b/model_zoo/official/cv/resnext50/ascend310_infer/inc/utils.h
@ -0,0 +1,35 @@
+/**
+ * Copyright 2021 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.
+ */
+
+#ifndef MINDSPORE_INFERENCE_UTILS_H_
+#define MINDSPORE_INFERENCE_UTILS_H_
+
+#include <sys/stat.h>
+#include <dirent.h>
+#include <vector>
+#include <string>
+#include <memory>
+#include "include/api/types.h"
+
+std::vector<std::string> GetAllFiles(std::string_view dirName);
+DIR *OpenDir(std::string_view dirName);
+std::string RealPath(std::string_view path);
+mindspore::MSTensor ReadFileToTensor(const std::string &file);
+int WriteResult(const std::string& imageFile, const std::vector<mindspore::MSTensor> &outputs);
+std::vector<std::string> GetAllFiles(std::string dir_name);
+std::vector<std::vector<std::string>> GetAllInputData(std::string dir_name);
+
+#endif
--- a/model_zoo/official/cv/resnext50/ascend310_infer/src/CMakeLists.txt
+++ b/model_zoo/official/cv/resnext50/ascend310_infer/src/CMakeLists.txt
@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.14.1)
+project(MindSporeCxxTestcase[CXX])
+add_compile_definitions(_GLIBCXX_USE_CXX11_ABI=0)
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0 -g -std=c++17 -Werror -Wall -fPIE -Wl,--allow-shlib-undefined")
+set(PROJECT_SRC_ROOT ${CMAKE_CURRENT_LIST_DIR}/)
+option(MINDSPORE_PATH "mindspore install path" "")
+include_directories(${MINDSPORE_PATH})
+include_directories(${MINDSPORE_PATH}/include)
+include_directories(${PROJECT_SRC_ROOT}/../)
+find_library(MS_LIB libmindspore.so ${MINDSPORE_PATH}/lib)
+file(GLOB_RECURSE MD_LIB ${MINDSPORE_PATH}/_c_dataengine*)
+
+add_executable(main main.cc utils.cc)
+target_link_libraries(main ${MS_LIB} ${MD_LIB} gflags)
--- a/model_zoo/official/cv/resnext50/ascend310_infer/src/build.sh
+++ b/model_zoo/official/cv/resnext50/ascend310_infer/src/build.sh
@ -0,0 +1,18 @@
+#!/bin/bash
+# Copyright 2021 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.
+# ============================================================================
+
+cmake . -DMINDSPORE_PATH="`pip3.7 show mindspore-ascend | grep Location | awk '{print $2"/mindspore"}' | xargs realpath`"
+make
--- a/model_zoo/official/cv/resnext50/ascend310_infer/src/main.cc
+++ b/model_zoo/official/cv/resnext50/ascend310_infer/src/main.cc
@ -0,0 +1,145 @@
+/**
+ * Copyright 2021 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.
+ */
+#include <sys/time.h>
+#include <gflags/gflags.h>
+#include <dirent.h>
+#include <iostream>
+#include <string>
+#include <algorithm>
+#include <iosfwd>
+#include <vector>
+#include <fstream>
+#include <sstream>
+
+#include "include/api/model.h"
+#include "include/api/context.h"
+#include "include/api/types.h"
+#include "include/api/serialization.h"
+#include "include/dataset/vision_ascend.h"
+#include "include/dataset/execute.h"
+#include "include/dataset/transforms.h"
+#include "include/dataset/vision.h"
+#include "inc/utils.h"
+
+using mindspore::dataset::vision::Decode;
+using mindspore::dataset::vision::Resize;
+using mindspore::dataset::vision::CenterCrop;
+using mindspore::dataset::vision::Normalize;
+using mindspore::dataset::vision::HWC2CHW;
+using mindspore::dataset::TensorTransform;
+using mindspore::Context;
+using mindspore::Serialization;
+using mindspore::Model;
+using mindspore::Status;
+using mindspore::ModelType;
+using mindspore::GraphCell;
+using mindspore::kSuccess;
+using mindspore::MSTensor;
+using mindspore::dataset::Execute;
+
+
+DEFINE_string(mindir_path, "", "mindir path");
+DEFINE_string(dataset_path, ".", "dataset path");
+DEFINE_int32(device_id, 0, "device id");
+
+int main(int argc, char **argv) {
+  gflags::ParseCommandLineFlags(&argc, &argv, true);
+  if (RealPath(FLAGS_mindir_path).empty()) {
+    std::cout << "Invalid mindir" << std::endl;
+    return 1;
+  }
+
+  auto context = std::make_shared<Context>();
+  auto ascend310 = std::make_shared<mindspore::Ascend310DeviceInfo>();
+  ascend310->SetDeviceID(FLAGS_device_id);
+  context->MutableDeviceInfo().push_back(ascend310);
+  mindspore::Graph graph;
+  Serialization::Load(FLAGS_mindir_path, ModelType::kMindIR, &graph);
+  Model model;
+  Status ret = model.Build(GraphCell(graph), context);
+  if (ret != kSuccess) {
+    std::cout << "ERROR: Build failed." << std::endl;
+    return 1;
+  }
+
+  auto all_files = GetAllInputData(FLAGS_dataset_path);
+  if (all_files.empty()) {
+    std::cout << "ERROR: no input data." << std::endl;
+    return 1;
+  }
+
+  std::map<double, double> costTime_map;
+  size_t size = all_files.size();
+
+  std::shared_ptr<TensorTransform> decode(new Decode());
+  std::shared_ptr<TensorTransform> resize(new Resize({256}));
+  std::shared_ptr<TensorTransform> centercrop(new CenterCrop({224}));
+  std::shared_ptr<TensorTransform> normalize(new Normalize({123.675, 116.28, 103.53},
+                                                           {58.395, 57.12, 57.375}));
+  std::shared_ptr<TensorTransform> hwc2chw(new HWC2CHW());
+
+  std::vector<std::shared_ptr<TensorTransform>> trans_list;
+  trans_list = {decode, resize, centercrop, normalize, hwc2chw};
+
+  mindspore::dataset::Execute SingleOp(trans_list);
+
+  for (size_t i = 0; i < size; ++i) {
+    for (size_t j = 0; j < all_files[i].size(); ++j) {
+      struct timeval start = {0};
+      struct timeval end = {0};
+      double startTimeMs;
+      double endTimeMs;
+      std::vector<MSTensor> inputs;
+      std::vector<MSTensor> outputs;
+      std::cout << "Start predict input files:" << all_files[i][j] <<std::endl;
+      auto imgDvpp = std::make_shared<MSTensor>();
+      SingleOp(ReadFileToTensor(all_files[i][j]), imgDvpp.get());
+
+      inputs.emplace_back(imgDvpp->Name(), imgDvpp->DataType(), imgDvpp->Shape(),
+                          imgDvpp->Data().get(), imgDvpp->DataSize());
+      gettimeofday(&start, nullptr);
+      ret = model.Predict(inputs, &outputs);
+      gettimeofday(&end, nullptr);
+      if (ret != kSuccess) {
+        std::cout << "Predict " << all_files[i][j] << " failed." << std::endl;
+        return 1;
+      }
+      startTimeMs = (1.0 * start.tv_sec * 1000000 + start.tv_usec) / 1000;
+      endTimeMs = (1.0 * end.tv_sec * 1000000 + end.tv_usec) / 1000;
+      costTime_map.insert(std::pair<double, double>(startTimeMs, endTimeMs));
+      WriteResult(all_files[i][j], outputs);
+    }
+  }
+  double average = 0.0;
+  int inferCount = 0;
+
+  for (auto iter = costTime_map.begin(); iter != costTime_map.end(); iter++) {
+    double diff = 0.0;
+    diff = iter->second - iter->first;
+    average += diff;
+    inferCount++;
+  }
+  average = average / inferCount;
+  std::stringstream timeCost;
+  timeCost << "NN inference cost average time: "<< average << " ms of infer_count " << inferCount << std::endl;
+  std::cout << "NN inference cost average time: "<< average << "ms of infer_count " << inferCount << std::endl;
+  std::string fileName = "./time_Result" + std::string("/test_perform_static.txt");
+  std::ofstream fileStream(fileName.c_str(), std::ios::trunc);
+  fileStream << timeCost.str();
+  fileStream.close();
+  costTime_map.clear();
+  return 0;
+}
--- a/model_zoo/official/cv/resnext50/ascend310_infer/src/utils.cc
+++ b/model_zoo/official/cv/resnext50/ascend310_infer/src/utils.cc
@ -0,0 +1,185 @@
+/**
+ * Copyright 2021 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.
+ */
+
+#include <fstream>
+#include <algorithm>
+#include <iostream>
+#include "inc/utils.h"
+
+using mindspore::MSTensor;
+using mindspore::DataType;
+
+
+std::vector<std::vector<std::string>> GetAllInputData(std::string dir_name) {
+  std::vector<std::vector<std::string>> ret;
+
+  DIR *dir = OpenDir(dir_name);
+  if (dir == nullptr) {
+    return {};
+  }
+  struct dirent *filename;
+  /* read all the files in the dir ~ */
+  std::vector<std::string> sub_dirs;
+  while ((filename = readdir(dir)) != nullptr) {
+    std::string d_name = std::string(filename->d_name);
+    // get rid of "." and ".."
+    if (d_name == "." || d_name == ".." || d_name.empty()) {
+      continue;
+    }
+    std::string dir_path = RealPath(std::string(dir_name) + "/" + filename->d_name);
+    struct stat s;
+    lstat(dir_path.c_str(), &s);
+    if (!S_ISDIR(s.st_mode)) {
+      continue;
+    }
+
+    sub_dirs.emplace_back(dir_path);
+  }
+  std::sort(sub_dirs.begin(), sub_dirs.end());
+
+  (void)std::transform(sub_dirs.begin(), sub_dirs.end(), std::back_inserter(ret),
+                       [](const std::string &d) { return GetAllFiles(d); });
+
+  return ret;
+}
+
+
+std::vector<std::string> GetAllFiles(std::string dir_name) {
+  struct dirent *filename;
+  DIR *dir = OpenDir(dir_name);
+  if (dir == nullptr) {
+    return {};
+  }
+
+  std::vector<std::string> res;
+  while ((filename = readdir(dir)) != nullptr) {
+    std::string d_name = std::string(filename->d_name);
+    if (d_name == "." || d_name == ".." || d_name.size() <= 3) {
+      continue;
+    }
+    res.emplace_back(std::string(dir_name) + "/" + filename->d_name);
+  }
+  std::sort(res.begin(), res.end());
+
+  return res;
+}
+
+
+std::vector<std::string> GetAllFiles(std::string_view dirName) {
+  struct dirent *filename;
+  DIR *dir = OpenDir(dirName);
+  if (dir == nullptr) {
+    return {};
+  }
+  std::vector<std::string> res;
+  while ((filename = readdir(dir)) != nullptr) {
+    std::string dName = std::string(filename->d_name);
+    if (dName == "." || dName == ".." || filename->d_type != DT_REG) {
+      continue;
+    }
+    res.emplace_back(std::string(dirName) + "/" + filename->d_name);
+  }
+  std::sort(res.begin(), res.end());
+  for (auto &f : res) {
+    std::cout << "image file: " << f << std::endl;
+  }
+  return res;
+}
+
+
+int WriteResult(const std::string& imageFile, const std::vector<MSTensor> &outputs) {
+  std::string homePath = "./result_Files";
+  for (size_t i = 0; i < outputs.size(); ++i) {
+    size_t outputSize;
+    std::shared_ptr<const void> netOutput;
+    netOutput = outputs[i].Data();
+    outputSize = outputs[i].DataSize();
+    int pos = imageFile.rfind('/');
+    std::string fileName(imageFile, pos + 1);
+    fileName.replace(fileName.find('.'), fileName.size() - fileName.find('.'), '_' + std::to_string(i) + ".bin");
+    std::string outFileName = homePath + "/" + fileName;
+    FILE *outputFile = fopen(outFileName.c_str(), "wb");
+    fwrite(netOutput.get(), outputSize, sizeof(char), outputFile);
+    fclose(outputFile);
+    outputFile = nullptr;
+  }
+  return 0;
+}
+
+mindspore::MSTensor ReadFileToTensor(const std::string &file) {
+  if (file.empty()) {
+    std::cout << "Pointer file is nullptr" << std::endl;
+    return mindspore::MSTensor();
+  }
+
+  std::ifstream ifs(file);
+  if (!ifs.good()) {
+    std::cout << "File: " << file << " is not exist" << std::endl;
+    return mindspore::MSTensor();
+  }
+
+  if (!ifs.is_open()) {
+    std::cout << "File: " << file << "open failed" << std::endl;
+    return mindspore::MSTensor();
+  }
+
+  ifs.seekg(0, std::ios::end);
+  size_t size = ifs.tellg();
+  mindspore::MSTensor buffer(file, mindspore::DataType::kNumberTypeUInt8, {static_cast<int64_t>(size)}, nullptr, size);
+
+  ifs.seekg(0, std::ios::beg);
+  ifs.read(reinterpret_cast<char *>(buffer.MutableData()), size);
+  ifs.close();
+
+  return buffer;
+}
+
+
+DIR *OpenDir(std::string_view dirName) {
+  if (dirName.empty()) {
+    std::cout << " dirName is null ! " << std::endl;
+    return nullptr;
+  }
+  std::string realPath = RealPath(dirName);
+  struct stat s;
+  lstat(realPath.c_str(), &s);
+  if (!S_ISDIR(s.st_mode)) {
+    std::cout << "dirName is not a valid directory !" << std::endl;
+    return nullptr;
+  }
+  DIR *dir;
+  dir = opendir(realPath.c_str());
+  if (dir == nullptr) {
+    std::cout << "Can not open dir " << dirName << std::endl;
+    return nullptr;
+  }
+  std::cout << "Successfully opened the dir " << dirName << std::endl;
+  return dir;
+}
+
+std::string RealPath(std::string_view path) {
+  char realPathMem[PATH_MAX] = {0};
+  char *realPathRet = nullptr;
+  realPathRet = realpath(path.data(), realPathMem);
+  if (realPathRet == nullptr) {
+    std::cout << "File: " << path << " is not exist.";
+    return "";
+  }
+
+  std::string realPath(realPathMem);
+  std::cout << path << " realpath is: " << realPath << std::endl;
+  return realPath;
+}
--- a/model_zoo/official/cv/resnext50/create_imagenet2012_label.py
+++ b/model_zoo/official/cv/resnext50/create_imagenet2012_label.py
@ -0,0 +1,48 @@
+# Copyright 2021 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
+#
+# less 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.
+# ============================================================================
+"""create_imagenet2012_label"""
+import os
+import json
+import argparse
+
+parser = argparse.ArgumentParser(description="resnet imagenet2012 label")
+parser.add_argument("--img_path", type=str, required=True, help="imagenet2012 file path.")
+args = parser.parse_args()
+
+
+def create_label(file_path):
+    print("[WARNING] Create imagenet label. Currently only use for Imagenet2012!")
+    dirs = os.listdir(file_path)
+    file_list = []
+    for file in dirs:
+        file_list.append(file)
+    file_list = sorted(file_list)
+
+    total = 0
+    img_label = {}
+    for i, file_dir in enumerate(file_list):
+        files = os.listdir(os.path.join(file_path, file_dir))
+        for f in files:
+            img_label[f] = i
+        total += len(files)
+
+    with open("imagenet_label.json", "w+") as label:
+        json.dump(img_label, label)
+
+    print("[INFO] Completed! Total {} data.".format(total))
+
+
+if __name__ == '__main__':
+    create_label(args.img_path)
--- a/model_zoo/official/cv/resnext50/export.py
+++ b/model_zoo/official/cv/resnext50/export.py
@ -1,4 +1,4 @@
-# Copyright 2020 Huawei Technologies Co., Ltd
+# Copyright 2020-2021 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.
@ -17,6 +17,7 @@ resnext export mindir.
 """
 import argparse
 import numpy as np
+from mindspore.common import dtype as mstype
 from mindspore import context, Tensor, load_checkpoint, load_param_into_net, export
 from src.config import config
 from src.image_classification import get_network
@ -38,10 +39,15 @@ if args.device_target == "Ascend":
    context.set_context(device_id=args.device_id)

 if __name__ == '__main__':
-    net = get_network(num_classes=config.num_classes, platform=args.device_target)
+    network = get_network(num_classes=config.num_classes, platform=args.device_target)

    param_dict = load_checkpoint(args.ckpt_file)
-    load_param_into_net(net, param_dict)
+    load_param_into_net(network, param_dict)
+    if args.device_target == "Ascend":
+        network.to_float(mstype.float16)
+    else:
+        auto_mixed_precision(network)
+    network.set_train(False)
    input_shp = [args.batch_size, 3, args.height, args.width]
    input_array = Tensor(np.random.uniform(-1.0, 1.0, size=input_shp).astype(np.float32))
-    export(net, input_array, file_name=args.file_name, file_format=args.file_format)
+    export(network, input_array, file_name=args.file_name, file_format=args.file_format)
--- a/model_zoo/official/cv/resnext50/postprocess.py
+++ b/model_zoo/official/cv/resnext50/postprocess.py
@ -0,0 +1,51 @@
+# Copyright 2021 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
+#
+# less 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.
+# ============================================================================
+"""post process for 310 inference"""
+import os
+import json
+import argparse
+import numpy as np
+from src.config import config
+
+batch_size = 1
+parser = argparse.ArgumentParser(description="resnet inference")
+parser.add_argument("--result_path", type=str, required=True, help="result files path.")
+parser.add_argument("--label_path", type=str, required=True, help="image file path.")
+args = parser.parse_args()
+
+
+def get_result(result_path, label_path):
+    files = os.listdir(result_path)
+    with open(label_path, "r") as label:
+        labels = json.load(label)
+
+    top1 = 0
+    top5 = 0
+    total_data = len(files)
+    for file in files:
+        img_ids_name = file.split('_0.')[0]
+        data_path = os.path.join(result_path, img_ids_name + "_0.bin")
+        result = np.fromfile(data_path, dtype=np.float16).reshape(batch_size, config.num_classes)
+        for batch in range(batch_size):
+            predict = np.argsort(-result[batch], axis=-1)
+            if labels[img_ids_name+".JPEG"] == predict[0]:
+                top1 += 1
+            if labels[img_ids_name+".JPEG"] in predict[:5]:
+                top5 += 1
+    print(f"Total data: {total_data}, top1 accuracy: {top1/total_data}, top5 accuracy: {top5/total_data}.")
+
+
+if __name__ == '__main__':
+    get_result(args.result_path, args.label_path)
--- a/model_zoo/official/cv/resnext50/scripts/run_infer_310.sh
+++ b/model_zoo/official/cv/resnext50/scripts/run_infer_310.sh
@ -0,0 +1,99 @@
+#!/bin/bash
+# Copyright 2021 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.
+# ============================================================================
+
+if [[ $# -lt 2 || $# -gt 3 ]]; then
+    echo "Usage: bash run_infer_310.sh [MINDIR_PATH] [DATA_PATH] [DEVICE_ID]
+    DEVICE_ID is optional, it can be set by environment variable device_id, otherwise the value is zero"
+exit 1
+fi
+
+get_real_path(){
+    if [ "${1:0:1}" == "/" ]; then
+        echo "$1"
+    else
+        echo "$(realpath -m $PWD/$1)"
+    fi
+}
+model=$(get_real_path $1)
+data_path=$(get_real_path $2)
+
+device_id=0
+if [ $# == 3 ]; then
+    device_id=$3
+fi
+
+echo "mindir name: "$model
+echo "dataset path: "$data_path
+echo "device id: "$device_id
+
+export ASCEND_HOME=/usr/local/Ascend/
+if [ -d ${ASCEND_HOME}/ascend-toolkit ]; then
+    export PATH=$ASCEND_HOME/ascend-toolkit/latest/fwkacllib/ccec_compiler/bin:$ASCEND_HOME/ascend-toolkit/latest/atc/bin:$PATH
+    export LD_LIBRARY_PATH=/usr/local/lib:$ASCEND_HOME/ascend-toolkit/latest/atc/lib64:$ASCEND_HOME/ascend-toolkit/latest/fwkacllib/lib64:$ASCEND_HOME/driver/lib64:$ASCEND_HOME/add-ons:$LD_LIBRARY_PATH
+    export TBE_IMPL_PATH=$ASCEND_HOME/ascend-toolkit/latest/opp/op_impl/built-in/ai_core/tbe
+    export PYTHONPATH=${TBE_IMPL_PATH}:$ASCEND_HOME/ascend-toolkit/latest/fwkacllib/python/site-packages:$PYTHONPATH
+    export ASCEND_OPP_PATH=$ASCEND_HOME/ascend-toolkit/latest/opp
+else
+    export PATH=$ASCEND_HOME/atc/ccec_compiler/bin:$ASCEND_HOME/atc/bin:$PATH
+    export LD_LIBRARY_PATH=/usr/local/lib:$ASCEND_HOME/atc/lib64:$ASCEND_HOME/acllib/lib64:$ASCEND_HOME/driver/lib64:$ASCEND_HOME/add-ons:$LD_LIBRARY_PATH
+    export PYTHONPATH=$ASCEND_HOME/atc/python/site-packages:$PYTHONPATH
+    export ASCEND_OPP_PATH=$ASCEND_HOME/opp
+fi
+
+function compile_app()
+{
+    cd ../ascend310_infer/src/ || exit
+    if [ -f "Makefile" ]; then
+        make clean
+    fi
+    bash build.sh &> build.log
+}
+
+function infer()
+{
+    cd - || exit
+    if [ -d result_Files ]; then
+        rm -rf ./result_Files
+    fi
+    if [ -d time_Result ]; then
+        rm -rf ./time_Result
+    fi
+    mkdir result_Files
+    mkdir time_Result
+    ../ascend310_infer/src/main --mindir_path=$model --dataset_path=$data_path --device_id=$device_id  &> infer.log
+}
+
+function cal_acc()
+{
+    python3.7 ../create_imagenet2012_label.py  --img_path=$data_path
+    python3.7 ../postprocess.py --result_path=./result_Files --label_path=./imagenet_label.json  &> acc.log &
+}
+
+compile_app
+if [ $? -ne 0 ]; then
+    echo "compile app code failed"
+    exit 1
+fi
+infer
+if [ $? -ne 0 ]; then
+    echo " execute inference failed"
+    exit 1
+fi
+cal_acc
+if [ $? -ne 0 ]; then
+    echo "calculate accuracy failed"
+    exit 1
+fi