Building MindSpore Lite

Windows macOS Linux iOS Android Environment Preparation Intermediate Expert

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This chapter introduces how to quickly compile MindSpore Lite, which includes the following modules:

Modules in MindSpore Lite:

Module

Support Platform

Description

converter

Linux, Windows

Model Conversion Tool

runtime(cpp, java)

Linux, Windows, Android, iOS

Model Inference Framework(Windows platform does not support java version runtime)

benchmark

Linux, Windows, Android

Benchmarking Tool

benchmark_train

Linux, Android

Performance and Accuracy Validation

cropper

Linux

Static library crop tool for libmindspore-lite.a

minddata

Linux, Android

Image Processing Library

codegen

Linux

Model inference code generation tool

obfuscator

Linux

Model Obfuscation Tool

Linux Environment Compilation

Environment Requirements

  • The compilation environment supports Linux x86_64 only. Ubuntu 18.04.02 LTS is recommended.

  • Compilation dependencies of cpp:

    • GCC >= 7.3.0

    • CMake >= 3.18.3

    • Git >= 2.28.0

    • Android_NDK >= r20

      • Configure environment variables: export ANDROID_NDK=NDK path.

  • Additional compilation dependencies of Java:

    • Gradle >= 6.6.1

      • Configure environment variables: export GRADLE_HOME=GRADLE path.

      • Add the bin directory to the PATH: export PATH=${GRADLE_HOME}/bin:$PATH.

    • OpenJDK >= 1.8

      • Configure environment variables: export JAVA_HOME=JDK path.

      • Add the bin directory to the PATH: export PATH=${JAVA_HOME}/bin:$PATH.

    • Android SDK

      • Create a new directory, configure environment variablesexport ANDROID_SDK_ROOT=new directory.

      • Download SDK Tools, create SDK through sdkmanager: ./sdkmanager --sdk_root=${ANDROID_SDK_ROOT} "cmdline-tools;latest".

      • Accept the license through sdkmanager under the ${ANDROID_SDK_ROOT} directory: yes | ./sdkmanager --licenses.

You can also directly use the Docker compilation image that has been configured with the above dependencies.

  • Download the docker image: docker pull swr.cn-south-1.myhuaweicloud.com/mindspore-build/mindspore-lite:ubuntu18.04.2-20210530

  • Create a container: docker run -tid --net=host --name=docker01 swr.cn-south-1.myhuaweicloud.com/mindspore-build/mindspore-lite:ubuntu18.04.2-20210530

  • Enter the container: docker exec -ti -u 0 docker01 bash

Compilation Options

The script build.sh in the root directory of MindSpore can be used to compile MindSpore Lite.

Instructions for parameters of build.sh

Parameter

Parameter Description

Value Range

Defaults

-I

Selects an applicable architecture.

arm64, arm32, or x86_64

None

-A

Compile AAR package (including arm32 and arm64).

on, off

off

-d

If this parameter is set, the debug version is compiled. Otherwise, the release version is compiled.

None

None

-i

If this parameter is set, incremental compilation is performed. Otherwise, full compilation is performed.

None

None

-j[n]

Sets the number of threads used during compilation. Otherwise, the number of threads is set to 8 by default.

Integer

8

-a

Whether to enable AddressSanitizer

on, off

off

  • When compiling the x86_64 version, if the JAVA_HOME environment variable is configured and Gradle is installed, the JAR package will be compiled at the same time.

  • When the -I parameter changes, such as -I x86_64 is converted to -I arm64, adding -i for parameter compilation does not take effect.

  • When compiling the AAR package, the -A on parameter must be added, and there is no need to add the -I parameter.

Module build compilation options

The construction of modules is controlled by environment variables. Users can control the modules built by compiling by declaring relevant environment variables. After the compilation option is modified, in order to make the option effective, the -i parameter cannot be added for incremental compilation when compiling with the build.sh script.

  • General module compilation options

Option

Parameter Description

Value Range

Defaults

MSLITE_GPU_BACKEND

Set the GPU backend, only opencl is valid when -I arm64, and only tensorrt is valid when -I x86_64

opencl, tensorrt, off

opencl when -I arm64, off when -I x86_64

MSLITE_ENABLE_NPU

Whether to compile NPU operator, only valid when -I arm64 or -I arm32

on, off

off

MSLITE_ENABLE_TRAIN

Whether to compile the training version

on, off

on

MSLITE_ENABLE_SSE

Whether to enable SSE instruction set, only valid when -I x86_64

on, off

off

MSLITE_ENABLE_AVX

Whether to enable AVX instruction set, only valid when -I x86_64

on, off

off

MSLITE_ENABLE_CONVERTER

Whether to compile the model conversion tool, only valid when -I x86_64

on, off

on

MSLITE_ENABLE_TOOLS

Whether to compile supporting tools

on, off

on

MSLITE_ENABLE_TESTCASES

Whether to compile test cases

on, off

off

  • Runtime feature compilation options

If the user is sensitive to the package size of the framework, the following options can be configured to reduce the package size by reducing the function of the runtime model reasoning framework. Then, the user can further reduce the package size by operator reduction through the reduction tool or download.

Option

Parameter Description

Value Range

Defaults

MSLITE_ENABLE_STRING_KERNEL

Whether to support string data reasoning model, such as smart_reply.tflite

on,off

on

MSLITE_ENABLE_CONTROLFLOW

Whether to support control flow model

on,off

on

MSLITE_ENABLE_WEIGHT_DECODE

Whether to support weight quantitative model

on,off

on

MSLITE_ENABLE_CUSTOM_KERNEL

Whether to support southbound operator registration

on,off

on

MSLITE_ENABLE_DELEGATE

Whether to support Delegate mechanism

on,off

on

MSLITE_ENABLE_V0

Whether to compatible with models exported before 1.1.0

on,off

on

  • Since the implementation of NPU and TensorRT depends on the Delegate mechanism, the Delegate mechanism cannot be turned off when using NPU or TensorRT. If the Delegate mechanism is turned off, the related functions must also be turned off.

Compilation Example

First, download source code from the MindSpore code repository.

git clone https://gitee.com/mindspore/mindspore.git -b r1.5

Then, run the following commands in the root directory of the source code to compile MindSpore Lite of different versions:

  • Compile the x86_64 architecture version and set the number of threads at the same time.

    bash build.sh -I x86_64 -j32
    
  • Compile the ARM64 architecture version without compiling training-related code.

    export MSLITE_ENABLE_TRAIN=off
    bash build.sh -I arm64 -j32
    

    Or modify mindspore/lite/CMakeLists.txt to set MSLITE_ENABLE_TRAIN to off and execute the command:

    bash build.sh -I arm64 -j32
    
  • Compile the AAR package containing aarch64 and aarch32.

    bash build.sh -A on -j32
    

Finally, the following files will be generated in the output/ directory:

  • mindspore-lite-{version}-{os}-{arch}.tar.gz: Contains runtime, and related tools.

  • mindspore-lite-maven-{version}.zip: The AAR package which contains runtime (java).

  • version: Version of the output, consistent with that of the MindSpore.

  • os: Operating system on which the output will be deployed.

  • arch: System architecture on which the output will be deployed.

Directory Structure

  • When the compilation option is -I x86_64:

    mindspore-lite-{version}-linux-x64
    ├── runtime
    │   ├── include
    │   ├── lib
    │   │   ├── libminddata-lite.a         # Static library of image processing
    │   │   ├── libminddata-lite.so        # Dynamic library of image processing
    │   │   ├── libmindspore-lite.a        # Static library of inference framework in MindSpore Lite
    │   │   ├── libmindspore-lite-jni.so   # Dynamic library of inference framework jni in MindSpore Lite
    │   │   ├── libmindspore-lite.so       # Dynamic library of inference framework in MindSpore Lite
    │   │   ├── libmindspore-lite-train.a  # Static library of training framework in MindSpore Lite
    │   │   ├── libmindspore-lite-train.so # Dynamic library of training framework in MindSpore Lite
    │   │   ├── libmsdeobfuscator-lite.so  # The files of obfuscated model loading dynamic library, need to open the `ENABLE_MODEL_OBF` option.
    │   │   └── mindspore-lite-java.jar    # Jar of inference framework in MindSpore Lite
    │   └── third_party
    │       └── libjpeg-turbo
    └── tools
        ├── benchmark       # Benchmarking tool
        ├── benchmark_train # Training model benchmark tool
        ├── codegen         # Code generation tool
        ├── converter       # Model conversion tool
        ├── obfuscator      # Model obfuscation tool
        └── cropper         # Static library crop tool
    
  • When the compilation option is -I arm64 or -I arm32:

    mindspore-lite-{version}-android-{arch}
    ├── runtime
    │   ├── include
    │   ├── lib
    │   │   ├── libminddata-lite.a         # Static library of image processing
    │   │   ├── libminddata-lite.so        # Dynamic library of image processing
    │   │   ├── libmindspore-lite.a        # Static library of inference framework in MindSpore Lite
    │   │   ├── libmindspore-lite.so       # Dynamic library of inference framework in MindSpore Lite
    │   │   ├── libmindspore-lite-train.a  # Static library of training framework in MindSpore Lite
    │   │   └── libmindspore-lite-train.so # Dynamic library of training framework in MindSpore Lite
    │   │   └── libmsdeobfuscator-lite.so  # The files of obfuscated model loading dynamic library, need to open the `ENABLE_MODEL_OBF` option.
    │   └── third_party
    │       ├── hiai_ddk
    │       └── libjpeg-turbo
    └── tools
        ├── benchmark       # Benchmarking tool
        ├── benchmark_train # Training model benchmark tool
        └── codegen         # Code generation tool
    
  • When the compilation option is -A on:

    mindspore-lite-maven-{version}
    └── mindspore
        └── mindspore-lite
            └── {version}
                └── mindspore-lite-{version}.aar # MindSpore Lite runtime aar
    

Windows Environment Compilation

Environment Requirements

  • System environment: Windows 7, Windows 10; 64-bit.

  • MinGW compilation dependencies:

  • Visual Studio compilation dependencies:

    • Visual Studio = 2017, cmake is included.

    • Compile 64-bit: Enter the start menu, click “x64 Native Tools Command Prompt for VS 2017”, or open the cmd window and execute call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Profession\VC\Auxiliary\Build\vcvars64.bat".

    • Compile 32-bit: Enter the start menu, click “x64_x86 Cross Tools Command Prompt for VS 2017”, or open the cmd window and execute call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Profession\VC\Auxiliary\Build\vcvarsamd64_x86.bat".

Compilation Options

The script build.bat in the root directory of MindSpore can be used to compile MindSpore Lite.

The compilation parameter of build.bat

Parameter

Parameter Description

Mandatory or Not

lite

Set this parameter to compile the MindSpore Lite project.

Yes

[n]

Set the number of threads used during compilation, otherwise the default is set to 6 threads.

No

The options of mindspore/lite/CMakeLists.txt

Option

Parameter Description

Value Range

Defaults

MSLITE_ENABLE_SSE

Whether to enable SSE instruction set

on, off

off

MSLITE_ENABLE_AVX

Whether to enable AVX instruction set (This option does not currently support the Visual Studio compiler)

on, off

off

MSLITE_ENABLE_CONVERTER

Whether to compile the model conversion tool (This option does not currently support the Visual Studio compiler)

on, off

on

MSLITE_ENABLE_TOOLS

Whether to compile supporting tools

on, off

on

MSLITE_ENABLE_TESTCASES

Whether to compile test cases

on, off

off

  • The above options can be modified by setting the environment variable with the same name or the file mindspore/lite/CMakeLists.txt.

Compilation Example

First, use the git tool to download the source code from the MindSpore code repository.

git clone https://gitee.com/mindspore/mindspore.git -b r1.5

Then, use the cmd tool to compile MindSpore Lite in the root directory of the source code and execute the following commands.

  • Turn on SSE instruction set optimization and compile with 8 threads.

set MSLITE_ENABLE_SSE=on
call build.bat lite 8

Finally, the following files will be generated in the output/ directory:

  • mindspore-lite-{version}-win-x64.zip: Contains model inference framework and related tool.

version: Version of the output, consistent with that of the MindSpore.

Directory Structure

  • When the compiler is MinGW:

    mindspore-lite-{version}-win-x64
    ├── runtime
    │   ├── include
    │   └── lib
    │       ├── libgcc_s_seh-1.dll      # Dynamic library of MinGW
    │       ├── libmindspore-lite.a     # Static library of inference framework in MindSpore Lite
    │       ├── libmindspore-lite.dll   # Dynamic library of inference framework in MindSpore Lite
    │       ├── libmindspore-lite.dll.a # Link file of dynamic library of inference framework in MindSpore Lite
    │       ├── libssp-0.dll            # Dynamic library of MinGW
    │       ├── libstdc++-6.dll         # Dynamic library of MinGW
    │       └── libwinpthread-1.dll     # Dynamic library of MinGW
    └── tools
        ├── benchmark # Benchmarking tool
        └── converter # Model conversion tool
    
  • When the compiler is Visual Studio:

    mindspore-lite-{version}-win-x64
    ├── runtime
    │   ├── include
    │   └── lib
    │       ├── libmindspore-lite.dll     # Dynamic library of inference framework in MindSpore Lite
    │       ├── libmindspore-lite.dll.lib # Import library of dynamic library of inference framework in MindSpore Lite
    │       └── libmindspore-lite.lib     # Static library of inference framework in MindSpore Lite
    └── tools
        └── benchmark # Benchmarking tool
    
  • When linking the static library compiled by MinGW, you need to add -Wl, --whole-archive mindspore-lite -Wl, --no-whole-archive in the link options.

  • When linking the static library compiled by Visual Studio, you need to add /WHOLEARCHIVE:libmindspore-lite.lib in “Property Pages -> Linker -> Command Line -> Additional Options”.

  • When using the Visual Studio compiler, std::ios::binary must be added to read the model stream, otherwise the problem of incomplete reading of the model file will occur.

  • Currently, MindSpore Lite is not supported on Windows.

macOS Environment Compilation

Environment Requirements

  • System environment: macOS 10.15.4 and above ; 64-bit.

  • Compilation dependencies are:

  • The compilation script will execute git clone to obtain the code of the third-party dependent libraries.

Compilation Options

The script build.sh in the root directory of MindSpore can be used to compile MindSpore Lite.

The compilation parameter of build.sh

Parameter

Parameter Description

Value Range

Defaults

-I

Selects an applicable architecture.

arm64, arm32

None

-j[n]

Sets the number of threads used during compilation. Otherwise, the number of threads is set to 8 by default.

Integer

8

Compilation Example

First, use the git tool to download the source code from the MindSpore code repository.

git clone https://gitee.com/mindspore/mindspore.git -b r1.5

Then, use the cmd tool to compile MindSpore Lite in the root directory of the source code and execute the following commands.

  • Compile the ARM64 architecture version

    bash build.sh -I arm64 -j8
    
  • Compile the ARM32 architecture version

    bash build.sh -I arm32 -j8
    

Finally, the following files will be generated in the output/ directory:

  • mindspore-lite-{version}-{os}-{arch}.tar.gz: Contains model inference framework.

  • version: Version of the output, consistent with that of the MindSpore.

  • os: Operating system on which the output will be deployed.

  • arch: System architecture on which the output will be deployed.

Directory Structure

mindspore-lite.framework
└── runtime
    ├── Headers        # 推理框架头文件
    ├── Info.plist     # 配置文件
    └── mindspore-lite # 静态库

Currently, MindSpore Lite Train and converter are not supported on macOS.