onnxruntime/BUILD.md

Building ONNX Runtime

Dockerfiles / Pre-built packages

Content

Inferencing

• Start: Baseline CPU
• Supported architectures and build environments
• Common Build Instructions
• Additional Build Instructions - complete list: ./build.sh (or .\build.bat) --help
  • Reduced Operator Kernel Build
  • ONNX Runtime for Mobile Platforms
  • ONNX Runtime Server (Linux)
  • Execution Provider Shared Libraries
  • Execution Providers
    • NVIDIA CUDA
    • NVIDIA TensorRT
    • NVIDIA Jetson TX1/TX2/Nano/Xavier
    • Intel DNNL/MKL-ML
    • Intel OpenVINO
    • Android NNAPI
    • Nuphar Model Compiler
    • DirectML
    • ARM Compute Library
    • ArmNN
    • Rockchip RKNPU
    • Xilinx Vitis-AI
    • AMD MIGraphX
  • Options
    • OpenMP
    • OpenBLAS
    • DebugNodeInputsOutputs
  • Architectures
    • x86
    • ARM
    • Android
    • iOS

Training

• Baseline CPU
  • Traning Enabled Execution Providers
    • NVIDIA CUDA
    • ROCM
    • Intel DNNL/MKL-ML

Inferencing

Start: Baseline CPU

Prerequisites

• Checkout the source tree:

  git clone --recursive https://github.com/Microsoft/onnxruntime
  cd onnxruntime
  

• Install cmake-3.13 or higher from https://cmake.org/download/.

Build Instructions

Windows

Open Developer Command Prompt for Visual Studio version you are going to use. This will properly setup the environment including paths to your compiler, linker, utilities and header files.

.\build.bat --config RelWithDebInfo --build_shared_lib --parallel

The default Windows CMake Generator is Visual Studio 2017, but you can also use the newer Visual Studio 2019 by passing --cmake_generator "Visual Studio 16 2019" to .\build.bat

Linux

./build.sh --config RelWithDebInfo --build_shared_lib --parallel

macOS

By default, ORT is configured to be built for a minimum target macOS version of 10.12. The shared library in the release Nuget(s) and the Python wheel may be installed on macOS versions of 10.12+.

If you would like to use Xcode to build the onnxruntime for x86_64 macOS, please add the --user_xcode argument in the command line

./build.sh --config RelWithDebInfo --build_shared_lib --parallel --use_xcode

While without this flag, the cmake build generator will be Unix makefile by default. Also, if you want to try cross compiling for Apple Silicon in an Intel-based MacOS machine, please add the argument --osx_arch arm64 with a cmake > 3.19, however the unit tests will be skipped due to the incompatible CPU instruction set.

Notes

• Please note that these instructions build the debug build, which may have performance tradeoffs
• To build the version from each release (which include Windows, Linux, and Mac variants), see these .yml files for reference: CPU, GPU
• The build script runs all unit tests by default (for native builds and skips tests by default for cross-compiled builds).
• If you need to install protobuf 3.6.1 from source code (cmake/external/protobuf), please note:
  • CMake flag protobuf_BUILD_SHARED_LIBS must be turned OFF. After the installation, you should have the 'protoc' executable in your PATH. It is recommended to run ldconfig to make sure protobuf libraries are found.
  • If you installed your protobuf in a non standard location it would be helpful to set the following env var:export CMAKE_ARGS="-DONNX_CUSTOM_PROTOC_EXECUTABLE=full path to protoc" so the ONNX build can find it. Also run ldconfig <protobuf lib folder path> so the linker can find protobuf libraries.
• If you'd like to install onnx from source code (cmake/external/onnx), use:

  export ONNX_ML=1
  python3 setup.py bdist_wheel
  pip3 install --upgrade dist/*.whl
  

---

Supported architectures and build environments

Architectures

	x86_32	x86_64	ARM32v7	ARM64
Windows	YES	YES	YES	YES
Linux	YES	YES	YES	YES
macOS	NO	YES	NO	NO

Environments

OS	Supports CPU	Supports GPU	Notes
Windows 10	YES	YES	VS2019 through the latest VS2015 are supported
Windows 10 Subsystem for Linux	YES	NO
Ubuntu 16.x	YES	YES	Also supported on ARM32v7 (experimental)
macOS	YES	NO

GCC 4.x and below are not supported.

OS/Compiler Matrix:

OS/Compiler	Supports VC	Supports GCC	Supports Clang
Windows 10	YES	Not tested	Not tested
Linux	NO	YES(gcc>=4.8)	Not tested
macOS	NO	Not tested	YES (Minimum version required not ascertained)

---

Common Build Instructions

Description	Command	Additional details
Basic build	build.bat (Windows) ./build.sh (Linux)
Release build	--config Release	Release build. Other valid config values are RelWithDebInfo and Debug.
Use OpenMP	--use_openmp	OpenMP will parallelize some of the code for potential performance improvements. This is not recommended for running on single threads.
Build using parallel processing	--parallel	This is strongly recommended to speed up the build.
Build Shared Library	--build_shared_lib
Enable Training support	--enable_training

APIs and Language Bindings

API	Command	Additional details
Python	--build_wheel
C# and C packages	--build_nuget	Builds C# bindings and creates nuget package. Currently supported on Windows and Linux only. Implies --build_shared_lib Detailed instructions can be found below.
WindowsML	--use_winml --use_dml --build_shared_lib	WindowsML depends on DirectML and the OnnxRuntime shared library
Java	--build_java	Creates an onnxruntime4j.jar in the build directory, implies --build_shared_lib Compiling the Java API requires gradle v6.1+ to be installed in addition to the usual requirements.
Node.js	--build_nodejs	Build Node.js binding. Implies --build_shared_lib

---

Reduced Operator Kernel Build

Reduced Operator Kernel builds allow you to customize the kernels in the build to provide smaller binary sizes - see instructions.

ONNX Runtime for Mobile Platforms

For builds compatible with mobile platforms, see more details in ONNX_Runtime_for_Mobile_Platforms.md. Android and iOS build instructions can be found below on this page - Android, iOS

Build ONNX Runtime Server on Linux

Read more about ONNX Runtime Server here.

Build instructions are here

Build Nuget packages

Currently only supported on Windows and Linux.

Prerequisites

• dotnet is required for building csharp bindings and creating managed nuget package. Follow the instructions here to download dotnet. Tested with versions 2.1 and 3.1.
• nuget.exe. Follow the instructions here to download nuget
  • On Windows, downloading nuget is straightforward and simply following the instructions above should work.
  • On Linux, nuget relies on Mono runtime and therefore this needs to be setup too. Above link has all the information to setup Mono and nuget. The instructions can directly be found here. In some cases it is required to run sudo apt-get install mono-complete after installing mono.

Build Instructions

Windows

.\build.bat --build_nuget

Linux

./build.sh --build_nuget

Nuget packages are created under <native_build_dir>\nuget-artifacts

---

Execution Provider Shared Libraries

The DNNL, TensorRT, and OpenVINO providers are built as shared libraries vs being statically linked into the main onnxruntime. This enables them to be loaded only when needed, and if the dependent libraries of the provider are not installed onnxruntime will still run fine, it just will not be able to use that provider. For non shared library providers, all dependencies of the provider must exist to load onnxruntime.

Built files

On Windows, shared provider libraries will be named 'onnxruntime_providers_*.dll' (for example onnxruntime_providers_openvino.dll). On Unix, they will be named 'libonnxruntime_providers_*.so' On Mac, they will be named 'libonnxruntime_providers_*.dylib'.

There is also a shared library that shared providers depend on called onnxruntime_providers_shared (with the same naming convension applied as above).

Note: It is not recommended to put these libraries in a system location or added to a library search path (like LD_LIBRARY_PATH on Unix). If multiple versions of onnxruntime are installed on the system this can make them find the wrong libraries and lead to undefined behavior.

Loading the shared providers

Shared provider libraries are loaded by the onnxruntime code (do not load or depend on them in your client code). The API for registering shared or non shared providers is identical, the difference is that shared ones will be loaded at runtime when the provider is added to the session options (through a call like OrtSessionOptionsAppendExecutionProvider_OpenVINO or SessionOptionsAppendExecutionProvider_OpenVINO in the C API). If a shared provider library cannot be loaded (if the file doesn't exist, or its dependencies don't exist or not in the path) then an error will be returned.

The onnxruntime code will look for the provider shared libraries in the same location as the onnxruntime shared library is (or the executable statically linked to the static library version).

Execution Providers

CUDA

Prerequisites

• Install CUDA and cuDNN
  • ONNX Runtime is built and tested with CUDA 10.2 and cuDNN 8.0.3 using Visual Studio 2019 version 16.7. ONNX Runtime can also be built with CUDA versions from 10.1 up to 11.0, and cuDNN versions from 7.6 up to 8.0.
  • The path to the CUDA installation must be provided via the CUDA_PATH environment variable, or the --cuda_home parameter
  • The path to the cuDNN installation (include the cuda folder in the path) must be provided via the cuDNN_PATH environment variable, or --cudnn_home parameter. The cuDNN path should contain bin, include and lib directories.
  • The path to the cuDNN bin directory must be added to the PATH environment variable so that cudnn64_8.dll is found.

Build Instructions

Windows

.\build.bat --use_cuda --cudnn_home <cudnn home path> --cuda_home <cuda home path>

Linux

./build.sh --use_cuda --cudnn_home <cudnn home path> --cuda_home <cuda home path>

A Dockerfile is available here.

Notes

• Depending on compatibility between the CUDA, cuDNN, and Visual Studio 2017 versions you are using, you may need to explicitly install an earlier version of the MSVC toolset.

• CUDA 10.0 is known to work with toolsets from 14.11 up to 14.16 (Visual Studio 2017 15.9), and should continue to work with future Visual Studio versions

• CUDA 9.2 is known to work with the 14.11 MSVC toolset (Visual Studio 15.3 and 15.4)

  • To install the 14.11 MSVC toolset, see this page.
  • To use the 14.11 toolset with a later version of Visual Studio 2017 you have two options:

  1. Setup the Visual Studio environment variables to point to the 14.11 toolset by running vcvarsall.bat, prior to running the build script. e.g. if you have VS2017 Enterprise, an x64 build would use the following command "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" amd64 -vcvars_ver=14.11 For convenience, .\build.amd64.1411.bat will do this and can be used in the same way as .\build.bat. e.g. .\build.amd64.1411.bat --use_cuda

  2. Alternatively, if you have CMake 3.13 or later you can specify the toolset version via the --msvc_toolset build script parameter. e.g. .\build.bat --msvc_toolset 14.11

• If you have multiple versions of CUDA installed on a Windows machine and are building with Visual Studio, CMake will use the build files for the highest version of CUDA it finds in the BuildCustomization folder. e.g. C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\VC\VCTargets\BuildCustomizations. If you want to build with an earlier version, you must temporarily remove the 'CUDA x.y.*' files for later versions from this directory.

---

TensorRT

See more information on the TensorRT Execution Provider here.

Prerequisites

• Install CUDA and cuDNN
  • The TensorRT execution provider for ONNX Runtime is built and tested with CUDA 11.0 and cuDNN 8.0.
  • The path to the CUDA installation must be provided via the CUDA_PATH environment variable, or the --cuda_home parameter. The CUDA path should contain bin, include and lib directories.
  • The path to the CUDA bin directory must be added to the PATH environment variable so that nvcc is found.
  • The path to the cuDNN installation (path to folder that contains libcudnn.so) must be provided via the cuDNN_PATH environment variable, or --cudnn_home parameter.
• Install TensorRT
  • The TensorRT execution provider for ONNX Runtime is built on TensorRT 7.1 and is tested with TensorRT 7.1.3.4.
  • The path to TensorRT installation must be provided via the --tensorrt_home parameter.

Build Instructions

Note that TensorRT is built as a shared provider library

Windows

.\build.bat --cudnn_home <path to cuDNN home> --cuda_home <path to CUDA home> --use_tensorrt --tensorrt_home <path to TensorRT home>

Linux

./build.sh --cudnn_home <path to cuDNN e.g. /usr/lib/x86_64-linux-gnu/> --cuda_home <path to folder for CUDA e.g. /usr/local/cuda> --use_tensorrt --tensorrt_home <path to TensorRT home>

Dockerfile instructions are available here

---

NVIDIA Jetson TX1/TX2/Nano/Xavier

These instructions are for JetPack SDK 4.4.

1. Clone the ONNX Runtime repo on the Jetson host

   git clone --recursive https://github.com/microsoft/onnxruntime
   

2. Specify the CUDA compiler, or add its location to the PATH.

   Cmake can't automatically find the correct nvcc if it's not in the PATH.

   export CUDACXX="/usr/local/cuda/bin/nvcc"
   
   

   or:

   export PATH="/usr/local/cuda/bin:${PATH}"
   

3. Install the ONNX Runtime build dependencies on the Jetpack 4.4 host:

   sudo apt install -y --no-install-recommends \
     build-essential software-properties-common libopenblas-dev \
     libpython3.6-dev python3-pip python3-dev python3-setuptools python3-wheel
   

4. Cmake is needed to build ONNX Runtime. Because the minimum required version is 3.13, it is necessary to build CMake from source. Download Unix/Linux sources from https://cmake.org/download/ and follow https://cmake.org/install/ to build from source. Version 3.17.5 and 3.18.4 have been tested on Jetson.

5. Build the ONNX Runtime Python wheel:

   ./build.sh --config Release --update --build --parallel --build_wheel \
   --use_cuda --cuda_home /usr/local/cuda --cudnn_home /usr/lib/aarch64-linux-gnu
   

   Note: You may optionally build with experimental TensorRT support.

   ./build.sh --config Release --update --build --parallel --build_wheel \
   --use_tensorrt --cuda_home /usr/local/cuda --cudnn_home /usr/lib/aarch64-linux-gnu \
   --tensorrt_home /usr/lib/aarch64-linux-gnu
   

---

DNNL and MKLML

See more information on DNNL and MKL-ML here.

Build Instructions

The DNNL execution provider can be built for Intel CPU or GPU. To build for Intel GPU, install Intel SDK for OpenCL Applications. Install the latest GPU driver - Windows graphics driver, Linux graphics compute runtime and OpenCL driver.

Note that DNNL is built as a shared provider library

Windows

.\build.bat --use_dnnl

Linux

./build.sh --use_dnnl

To build for Intel GPU, replace dnnl_opencl_root with the path of the Intel SDK for OpenCL Applications.

Windows

.\build.bat --use_dnnl --dnnl_gpu_runtime ocl --dnnl_opencl_root "c:\program files (x86)\intelswtools\sw_dev_tools\opencl\sdk"

Linux

./build.sh --use_dnnl --dnnl_gpu_runtime ocl --dnnl_opencl_root "/opt/intel/sw_dev_tools/opencl-sdk"

---

OpenVINO

See more information on the OpenVINO Execution Provider here.

Prerequisites

1. Install the Intel^® Distribution of OpenVINO^TM Toolkit Release 2021.2 for the appropriate OS and target hardware :

   • Linux - CPU, GPU, VPU, VAD-M
   • Linux - FPGA
   • Windows - CPU, GPU, VPU, VAD-M.

   Follow documentation for detailed instructions.

2021.2 is the recommended OpenVINO version. OpenVINO 2020.3 is minimal OpenVINO version requirement. The minimum ubuntu version to support 2021.2 is 18.04.

2. Configure the target hardware with specific follow on instructions:

   • To configure Intel^® Processor Graphics(GPU) please follow these instructions: Windows, Linux
   • To configure Intel^® Movidius^TM USB, please follow this getting started guide: Linux
   • To configure Intel^® Vision Accelerator Design based on 8 Movidius^TM MyriadX VPUs, please follow this configuration guide: Windows, Linux. Follow steps 3 and 4 to complete the configuration.
   • To configure Intel^® Vision Accelerator Design with an Intel^® Arria^® 10 FPGA, please follow this configuration guide: Linux

3. Initialize the OpenVINO environment by running the setupvars script as shown below:

   • For Linux run:

      $ source <openvino_install_directory>/bin/setupvars.sh
   

   • For Windows run:

      C:\ <openvino_install_directory>\bin\setupvars.bat
   

4. Extra configuration step for Intel^® Vision Accelerator Design based on 8 Movidius^TM MyriadX VPUs:

   • After setting the environment using setupvars script, follow these steps to change the default scheduler of VAD-M to Bypass:
     • Edit the hddl_service.config file from $HDDL_INSTALL_DIR/config/hddl_service.config and change the field "bypass_device_number" to 8.
     • Restart the hddl daemon for the changes to take effect.
     • Note that if OpenVINO was installed with root permissions, this file has to be changed with the same permissions.

Build Instructions

Note that OpenVINO is built as a shared provider library

Windows

.\build.bat --config RelWithDebInfo --use_openvino <hardware_option>

Note: The default Windows CMake Generator is Visual Studio 2017, but you can also use the newer Visual Studio 2019 by passing --cmake_generator "Visual Studio 16 2019" to .\build.bat

Linux

./build.sh --config RelWithDebInfo --use_openvino <hardware_option>

--use_openvino: Builds the OpenVINO Execution Provider in ONNX Runtime.

• <hardware_option>: Specifies the default hardware target for building OpenVINO Execution Provider. This can be overriden dynamically at runtime with another option (refer to OpenVINO-ExecutionProvider.md for more details on dynamic device selection). Below are the options for different Intel target devices.

Hardware Option	Target Device
CPU_FP32	Intel® CPUs
GPU_FP32	Intel® Integrated Graphics
GPU_FP16	Intel® Integrated Graphics with FP16 quantization of models
MYRIAD_FP16	Intel® MovidiusTM USB sticks
VAD-M_FP16	Intel® Vision Accelerator Design based on 8 MovidiusTM MyriadX VPUs
VAD-F_FP32	Intel® Vision Accelerator Design with an Intel® Arria® 10 FPGA
HETERO:<DEVICE_TYPE_1>,<DEVICE_TYPE_2>,<DEVICE_TYPE_3>...	All Intel® silicons mentioned above
MULTI:<DEVICE_TYPE_1>,<DEVICE_TYPE_2>,<DEVICE_TYPE_3>...	All Intel® silicons mentioned above

Specifying Hardware Target for HETERO or Multi-Device Build:

HETERO:<DEVICE_TYPE_1>,<DEVICE_TYPE_2>,<DEVICE_TYPE_3>... MULTI:<DEVICE_TYPE_1>,<DEVICE_TYPE_2>,<DEVICE_TYPE_3>... The <DEVICE_TYPE> can be any of these devices from this list ['CPU','GPU','MYRIAD','FPGA','HDDL']

A minimum of two DEVICE_TYPE'S should be specified for a valid HETERO or Multi-Device Build.

Example: HETERO:MYRIAD,CPU HETERO:HDDL,GPU,CPU MULTI:MYRIAD,GPU,CPU

For more information on OpenVINO Execution Provider's ONNX Layer support, Topology support, and Intel hardware enabled, please refer to the document OpenVINO-ExecutionProvider.md in $onnxruntime_root/docs/execution_providers

---

NUPHAR

See more information on the Nuphar Execution Provider here.

Prerequisites

• The Nuphar execution provider for ONNX Runtime is built and tested with LLVM 9.0.0. Because of TVM's requirement when building with LLVM, you need to build LLVM from source. To build the debug flavor of ONNX Runtime, you need the debug build of LLVM.
  • Windows (Visual Studio 2017):

  REM download llvm source code 9.0.0 and unzip to \llvm\source\path, then install to \llvm\install\path
  cd \llvm\source\path
  mkdir build
  cd build
  cmake .. -G "Visual Studio 15 2017 Win64" -DLLVM_TARGETS_TO_BUILD=X86 -DLLVM_ENABLE_DIA_SDK=OFF
  msbuild llvm.sln /maxcpucount /p:Configuration=Release /p:Platform=x64
  cmake -DCMAKE_INSTALL_PREFIX=\llvm\install\path -DBUILD_TYPE=Release -P cmake_install.cmake
  

Note that following LLVM cmake patch is necessary to make the build work on Windows, Linux does not need to apply the patch. The patch is to fix the linking warning LNK4199 caused by this LLVM commit

diff --git "a/lib\\Support\\CMakeLists.txt" "b/lib\\Support\\CMakeLists.txt"
index 7dfa97c..6d99e71 100644
--- "a/lib\\Support\\CMakeLists.txt"
+++ "b/lib\\Support\\CMakeLists.txt"
@@ -38,12 +38,6 @@ elseif( CMAKE_HOST_UNIX )
   endif()
 endif( MSVC OR MINGW )

-# Delay load shell32.dll if possible to speed up process startup.
-set (delayload_flags)
-if (MSVC)
-  set (delayload_flags delayimp -delayload:shell32.dll -delayload:ole32.dll)
-endif()
-
 # Link Z3 if the user wants to build it.
 if(LLVM_WITH_Z3)
   set(Z3_LINK_FILES ${Z3_LIBRARIES})
@@ -187,7 +181,7 @@ add_llvm_library(LLVMSupport
   ${LLVM_MAIN_INCLUDE_DIR}/llvm/ADT
   ${LLVM_MAIN_INCLUDE_DIR}/llvm/Support
   ${Backtrace_INCLUDE_DIRS}
-  LINK_LIBS ${system_libs} ${delayload_flags} ${Z3_LINK_FILES}
+  LINK_LIBS ${system_libs} ${Z3_LINK_FILES}
   )

 set_property(TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS "${system_libs}")

• Linux Download llvm source code 9.0.0 and unzip to /llvm/source/path, then install to /llvm/install/path

cd /llvm/source/path
mkdir build
cd build
cmake .. -DLLVM_TARGETS_TO_BUILD=X86 -DCMAKE_BUILD_TYPE=Release
make -j$(nproc)
cmake -DCMAKE_INSTALL_PREFIX=/llvm/install/path -DBUILD_TYPE=Release -P cmake_install.cmake

Build Instructions

Windows

.\build.bat --llvm_path=\llvm\install\path\lib\cmake\llvm --use_mklml --use_nuphar --build_shared_lib --build_csharp --enable_pybind --config=Release

• These instructions build the release flavor. The Debug build of LLVM would be needed to build with the Debug flavor of ONNX Runtime.

Linux:

./build.sh --llvm_path=/llvm/install/path/lib/cmake/llvm --use_mklml --use_nuphar --build_shared_lib --build_csharp --enable_pybind --config=Release

Dockerfile instructions are available here.

---

DirectML

See more information on the DirectML execution provider here.

Windows

.\build.bat --use_dml

Notes

The DirectML execution provider supports building for both x64 and x86 architectures. DirectML is only supported on Windows.

---

ARM Compute Library

See more information on the ACL Execution Provider here.

Prerequisites

• Supported backend: i.MX8QM Armv8 CPUs
• Supported BSP: i.MX8QM BSP
  • Install i.MX8QM BSP: source fsl-imx-xwayland-glibc-x86_64-fsl-image-qt5-aarch64-toolchain-4*.sh
• Set up the build environment

source /opt/fsl-imx-xwayland/4.*/environment-setup-aarch64-poky-linux
alias cmake="/usr/bin/cmake -DCMAKE_TOOLCHAIN_FILE=$OECORE_NATIVE_SYSROOT/usr/share/cmake/OEToolchainConfig.cmake"

• See Build ARM below for information on building for ARM devices

Build Instructions

1. Configure ONNX Runtime with ACL support:

cmake ../onnxruntime-arm-upstream/cmake -DONNX_CUSTOM_PROTOC_EXECUTABLE=/usr/bin/protoc -Donnxruntime_RUN_ONNX_TESTS=OFF -Donnxruntime_GENERATE_TEST_REPORTS=ON -Donnxruntime_DEV_MODE=ON -DPYTHON_EXECUTABLE=/usr/bin/python3 -Donnxruntime_USE_CUDA=OFF -Donnxruntime_USE_NSYNC=OFF -Donnxruntime_CUDNN_HOME= -Donnxruntime_USE_JEMALLOC=OFF -Donnxruntime_ENABLE_PYTHON=OFF -Donnxruntime_BUILD_CSHARP=OFF -Donnxruntime_BUILD_SHARED_LIB=ON -Donnxruntime_USE_EIGEN_FOR_BLAS=ON -Donnxruntime_USE_OPENBLAS=OFF -Donnxruntime_USE_ACL=ON -Donnxruntime_USE_DNNL=OFF -Donnxruntime_USE_MKLML=OFF -Donnxruntime_USE_OPENMP=ON -Donnxruntime_USE_TVM=OFF -Donnxruntime_USE_LLVM=OFF -Donnxruntime_ENABLE_MICROSOFT_INTERNAL=OFF -Donnxruntime_USE_BRAINSLICE=OFF -Donnxruntime_USE_NUPHAR=OFF -Donnxruntime_USE_EIGEN_THREADPOOL=OFF -Donnxruntime_BUILD_UNIT_TESTS=ON -DCMAKE_BUILD_TYPE=RelWithDebInfo

The -Donnxruntime_USE_ACL=ON option will use, by default, the 19.05 version of the Arm Compute Library. To set the right version you can use: -Donnxruntime_USE_ACL_1902=ON, -Donnxruntime_USE_ACL_1905=ON, -Donnxruntime_USE_ACL_1908=ON or -Donnxruntime_USE_ACL_2002=ON;

To use a library outside the normal environment you can set a custom path by using -Donnxruntime_ACL_HOME and -Donnxruntime_ACL_LIBS tags that defines the path to the ComputeLibrary directory and the build directory respectively.

-Donnxruntime_ACL_HOME=/path/to/ComputeLibrary, -Donnxruntime_ACL_LIBS=/path/to/build

2. Build ONNX Runtime library, test and performance application:

make -j 6

3. Deploy ONNX runtime on the i.MX 8QM board

libonnxruntime.so.0.5.0
onnxruntime_perf_test
onnxruntime_test_all

Native Build Instructions (validated on Jetson Nano and Jetson Xavier)

1. Build ACL Library (skip if already built)

cd ~
git clone -b v20.02 https://github.com/Arm-software/ComputeLibrary.git
cd ComputeLibrary
sudo apt-get install -y scons g++-arm-linux-gnueabihf
scons -j8 arch=arm64-v8a  Werror=1 debug=0 asserts=0 neon=1 opencl=1 examples=1 build=native

2. Cmake is needed to build ONNX Runtime. Because the minimum required version is 3.13, it is necessary to build CMake from source. Download Unix/Linux sources from https://cmake.org/download/ and follow https://cmake.org/install/ to build from source. Version 3.17.5 and 3.18.4 have been tested on Jetson.

3. Build onnxruntime with --use_acl flag with one of the supported ACL version flags. (ACL_1902 | ACL_1905 | ACL_1908 | ACL_2002)

./build.sh --config RelWithDebInfo --use_acl ACL_2002 --update --build --build_wheel --parallel --acl_home ~/ComputeLibrary --acl_libs ~/ComputeLibrary/build

---

ArmNN

See more information on the ArmNN Execution Provider here.

Prerequisites

• Supported backend: i.MX8QM Armv8 CPUs
• Supported BSP: i.MX8QM BSP
  • Install i.MX8QM BSP: source fsl-imx-xwayland-glibc-x86_64-fsl-image-qt5-aarch64-toolchain-4*.sh
• Set up the build environment

source /opt/fsl-imx-xwayland/4.*/environment-setup-aarch64-poky-linux
alias cmake="/usr/bin/cmake -DCMAKE_TOOLCHAIN_FILE=$OECORE_NATIVE_SYSROOT/usr/share/cmake/OEToolchainConfig.cmake"

• See Build ARM below for information on building for ARM devices

Build Instructions

./build.sh --use_armnn

The Relu operator is set by default to use the CPU execution provider for better performance. To use the ArmNN implementation build with --armnn_relu flag

./build.sh --use_armnn --armnn_relu

The Batch Normalization operator is set by default to use the CPU execution provider. To use the ArmNN implementation build with --armnn_bn flag

./build.sh --use_armnn --armnn_bn

To use a library outside the normal environment you can set a custom path by providing the --armnn_home and --armnn_libs parameters to define the path to the ArmNN home directory and build directory respectively. The ARM Compute Library home directory and build directory must also be available, and can be specified if needed using --acl_home and --acl_libs respectively.

./build.sh --use_armnn --armnn_home /path/to/armnn --armnn_libs /path/to/armnn/build  --acl_home /path/to/ComputeLibrary --acl_libs /path/to/acl/build

---

RKNPU

See more information on the RKNPU Execution Provider here.

Prerequisites

• Supported platform: RK1808 Linux
• See Build ARM below for information on building for ARM devices
• Use gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu instead of gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf, and modify CMAKE_CXX_COMPILER & CMAKE_C_COMPILER in tool.cmake:

  set(CMAKE_CXX_COMPILER aarch64-linux-gnu-g++)
  set(CMAKE_C_COMPILER aarch64-linux-gnu-gcc)
  

Build Instructions

Linux

1. Download rknpu_ddk to any directory.

2. Build ONNX Runtime library and test:

   ./build.sh --arm --use_rknpu --parallel --build_shared_lib --build_dir build_arm --config MinSizeRel --cmake_extra_defines RKNPU_DDK_PATH=<Path To rknpu_ddk> CMAKE_TOOLCHAIN_FILE=<Path To tool.cmake> ONNX_CUSTOM_PROTOC_EXECUTABLE=<Path To protoc>
   

3. Deploy ONNX runtime and librknpu_ddk.so on the RK1808 board:

   libonnxruntime.so.1.2.0
   onnxruntime_test_all
   rknpu_ddk/lib64/librknpu_ddk.so
   

---

Vitis-AI

See more information on the Xilinx Vitis-AI execution provider here.

For instructions to setup the hardware environment: Hardware setup

Linux

./build.sh --use_vitisai

Notes

The Vitis-AI execution provider is only supported on Linux.

Options

OpenMP

Build Instructions

Windows

.\build.bat --use_openmp

Linux/macOS

./build.sh --use_openmp

---

OpenBLAS

Prerequisites

• OpenBLAS
  • Windows: See build instructions here
  • Linux: Install the libopenblas-dev package sudo apt-get install libopenblas-dev

Build Instructions

Windows

.\build.bat --use_openblas

Linux

./build.sh --use_openblas

---

DebugNodeInputsOutputs

OnnxRuntime supports build options for enabling debugging of intermediate tensor shapes and data.

Build Instructions

Set onnxruntime_DEBUG_NODE_INPUTS_OUTPUT to build with this enabled.

Linux

./build.sh --cmake_extra_defines onnxruntime_DEBUG_NODE_INPUTS_OUTPUTS=1

Windows

.\build.bat --cmake_extra_defines onnxruntime_DEBUG_NODE_INPUTS_OUTPUTS=1

Configuration

The debug dump behavior can be controlled with several environment variables. See onnxruntime/core/framework/debug_node_inputs_outputs_utils.h for details.

Examples

To specify that node output data should be dumped (to stdout by default), set this environment variable:

ORT_DEBUG_NODE_IO_DUMP_OUTPUT_DATA=1

To specify that node output data should be dumped to files for nodes with name "Foo" or "Bar", set these environment variables:

ORT_DEBUG_NODE_IO_DUMP_OUTPUT_DATA=1
ORT_DEBUG_NODE_IO_NAME_FILTER="Foo;Bar"
ORT_DEBUG_NODE_IO_DUMP_DATA_TO_FILES=1

---

Architectures

64-bit x86 (also known as x86_64 or AMD64)

This is the default.

32-bit x86

Build Instructions

Windows

• add --x86 argument when launching .\build.bat

Linux

(Not officially supported)

---

ARM

There are a few options for building for ARM.

• Cross compiling for ARM with simulation (Linux/Windows) - Recommended; Easy, slow
• Cross compiling on Linux - Difficult, fast
• Native compiling on Linux ARM device - Easy, slower
• Cross compiling on Windows

Cross compiling for ARM with simulation (Linux/Windows)

EASY, SLOW, RECOMMENDED

This method rely on qemu user mode emulation. It allows you to compile using a desktop or cloud VM through instruction level simulation. You'll run the build on x86 CPU and translate every ARM instruction to x86. This is much faster than compiling natively on a low-end ARM device and avoids out-of-memory issues that may be encountered. The resulting ONNX Runtime Python wheel (.whl) file is then deployed to an ARM device where it can be invoked in Python 3 scripts.

Here is an example for Raspberrypi3 and Raspbian. Note: this does not work for Raspberrypi 1 or Zero, and if your operating system is different from what the dockerfile uses, it also may not work.

The build process can take hours.

Cross compiling on Linux

Difficult, fast

This option is very fast and allows the package to be built in minutes, but is challenging to setup. If you have a large code base (e.g. you are adding a new execution provider to onnxruntime), this may be the only feasible method.

1. Get the corresponding toolchain.

TLDR; Go to https://www.linaro.org/downloads/, get "64-bit Armv8 Cortex-A, little-endian" and "Linux Targeted", not "Bare-Metal Targeted". Extract it to your build machine and add the bin folder to your $PATH env. Then skip this part.

You can use GCC or Clang. Both work, but instructions here are based on GCC.

In GCC terms:

• "build" describes the type of system on which GCC is being configured and compiled
• "host" describes the type of system on which GCC runs. "target" to describe the type of system for which GCC produce code When not cross compiling, usually "build" = "host" = "target". When you do cross compile, usually "build" = "host" != "target". For example, you may build GCC on x86_64, then run GCC on x86_64, then generate binaries that target aarch64. In this case,"build" = "host" = x86_64 Linux, target is aarch64 Linux.

You can either build GCC from source code by yourself, or get a prebuilt one from a vendor like Ubuntu, linaro. Choosing the same compiler version as your target operating system is best. If ths is not possible, choose the latest stable one and statically link to the GCC libs.

When you get the compiler, run aarch64-linux-gnu-gcc -v This should produce an output like below:

Using built-in specs.
COLLECT_GCC=/usr/bin/aarch64-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/aarch64-linux-gnu/9/lto-wrapper
Target: aarch64-linux-gnu
Configured with: ../gcc-9.2.1-20190827/configure --bindir=/usr/bin --build=x86_64-redhat-linux-gnu --datadir=/usr/share --disable-decimal-float --disable-dependency-tracking --disable-gold --disable-libgcj --disable-libgomp --disable-libmpx --disable-libquadmath --disable-libssp --disable-libunwind-exceptions --disable-shared --disable-silent-rules --disable-sjlj-exceptions --disable-threads --with-ld=/usr/bin/aarch64-linux-gnu-ld --enable-__cxa_atexit --enable-checking=release --enable-gnu-unique-object --enable-initfini-array --enable-languages=c,c++ --enable-linker-build-id --enable-lto --enable-nls --enable-obsolete --enable-plugin --enable-targets=all --exec-prefix=/usr --host=x86_64-redhat-linux-gnu --includedir=/usr/include --infodir=/usr/share/info --libexecdir=/usr/libexec --localstatedir=/var --mandir=/usr/share/man --prefix=/usr --program-prefix=aarch64-linux-gnu- --sbindir=/usr/sbin --sharedstatedir=/var/lib --sysconfdir=/etc --target=aarch64-linux-gnu --with-bugurl=http://bugzilla.redhat.com/bugzilla/ --with-gcc-major-version-only --with-isl --with-newlib --with-plugin-ld=/usr/bin/aarch64-linux-gnu-ld --with-sysroot=/usr/aarch64-linux-gnu/sys-root --with-system-libunwind --with-system-zlib --without-headers --enable-gnu-indirect-function --with-linker-hash-style=gnu
Thread model: single
gcc version 9.2.1 20190827 (Red Hat Cross 9.2.1-3) (GCC)

Check the value of --build, --host, --target, and if it has special args like --with-arch=armv8-a, --with-arch=armv6, --with-tune=arm1176jz-s, --with-fpu=vfp, --with-float=hard.

You must also know what kind of flags your target hardware need, which can differ greatly. For example, if you just get the normal ARMv7 compiler and use it for Raspberry Pi V1 directly, it won't work because Raspberry Pi only has ARMv6. Generally every hardware vendor will provide a toolchain; check how that one was built.

A target env is identifed by:

• Arch: x86_32, x86_64, armv6,armv7,arvm7l,aarch64,...
• OS: bare-metal or linux.
• Libc: gnu libc/ulibc/musl/...
• ABI: ARM has mutilple ABIs like eabi, eabihf...

You can get all these information from the previous output, please be sure they are all correct.

2. Get a pre-compiled protoc:

Get this from https://github.com/protocolbuffers/protobuf/releases/download/v3.11.2/protoc-3.11.2-linux-x86_64.zip and unzip after downloading. The version must match the one onnxruntime is using. Currently we are using 3.11.2.

3. (Optional) Setup sysroot to enable python extension. Skip if not using Python.

Dump the root file system of the target operating system to your build machine. We'll call that folder "sysroot" and use it for build onnxruntime python extension. Before doing that, you should install python3 dev package(which contains the C header files) and numpy python package on the target machine first.

Below are some examples.

If the target OS is raspbian-buster, please download the RAW image from their website then run:

$ fdisk -l 2020-02-13-raspbian-buster.img

Disk 2020-02-13-raspbian-buster.img: 3.54 GiB, 3787456512 bytes, 7397376 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0xea7d04d6

Device	Boot	Start	End	Sectors	Size	Id	Type
2020-02-13-raspbian-buster.img1		8192	532479	524288	256M	c	W95 FAT32 (LBA)
2020-02-13-raspbian-buster.img2		532480	7397375	6864896	3.3G	83	Linux

You'll find the the root partition starts at the 532480 sector, which is 532480 * 512=272629760 bytes from the beginning.

Then run:

$ mkdir /mnt/pi
$ mount -r -o loop,offset=272629760 2020-02-13-raspbian-buster.img /mnt/pi

You'll see all raspbian files at /mnt/pi. However you can't use it yet. Because some of the symlinks are broken, you must fix them first. In /mnt/pi, run

$ find . -type l -exec realpath  {} \; |grep 'No such file'

It will show which are broken. Then you can fix them by running:

$ mkdir /mnt/pi2
$ cd /mnt/pi2
$ sudo tar -C /mnt/pi -cf - . | sudo tar --transform 'flags=s;s,^/,/mnt/pi2/,' -xf -

Then /mnt/pi2 is the sysroot folder you'll use in the next step.

If the target OS is Ubuntu, you can get an image from https://cloud-images.ubuntu.com/. But that image is in qcow2 format. Please convert it before run fdisk and mount.

qemu-img convert -p -O raw ubuntu-18.04-server-cloudimg-arm64.img ubuntu.raw

The remaining part is similar to raspbian.

If the target OS is manylinux2014, you can get it by: Install qemu-user-static from apt or dnf. Then run the docker Ubuntu:

docker run -v /usr/bin/qemu-aarch64-static:/usr/bin/qemu-aarch64-static -it --rm quay.io/pypa/manylinux2014_aarch64 /bin/bash

The "-v /usr/bin/qemu-aarch64-static:/usr/bin/qemu-aarch64-static" arg is not needed on Fedora.

Then, inside the docker, run

cd /opt/python
./cp35-cp35m/bin/python -m pip install numpy==1.16.6
./cp36-cp36m/bin/python -m pip install numpy==1.16.6
./cp37-cp37m/bin/python -m pip install numpy==1.16.6
./cp38-cp38/bin/python -m pip install numpy==1.16.6

These commands will take a few hours because numpy doesn't have a prebuilt package yet. When completed, open a second window and run

docker ps

From the output:

CONTAINER ID        IMAGE                                COMMAND             CREATED             STATUS              PORTS               NAMES
5a796e98db05        quay.io/pypa/manylinux2014_aarch64   "/bin/bash"         3 minutes ago       Up 3 minutes                            affectionate_cannon

You'll see the docker instance id is: 5a796e98db05. Use the following command to export the root filesystem as the sysroot for future use.

docker export 5a796e98db05 -o manylinux2014_aarch64.tar

4. Generate CMake toolchain file

Save the following content as tool.cmake

    SET(CMAKE_SYSTEM_NAME Linux)
    SET(CMAKE_SYSTEM_VERSION 1)
    SET(CMAKE_C_COMPILER aarch64-linux-gnu-gcc)
    SET(CMAKE_CXX_COMPILER aarch64-linux-gnu-g++)
    SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
    SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
    SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
    SET(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
    SET(CMAKE_FIND_ROOT_PATH /mnt/pi)

If you don't have a sysroot, you can delete the last line.

5. Run CMake and make

Append -DONNX_CUSTOM_PROTOC_EXECUTABLE=/path/to/protoc -DCMAKE_TOOLCHAIN_FILE=path/to/tool.cmake to your cmake args, run cmake and make to build it. If you want to build Python package as well, you can use cmake args like:

-Donnxruntime_GCC_STATIC_CPP_RUNTIME=ON -DCMAKE_BUILD_TYPE=Release -Dprotobuf_WITH_ZLIB=OFF -DCMAKE_TOOLCHAIN_FILE=path/to/tool.cmake -Donnxruntime_ENABLE_PYTHON=ON -DPYTHON_EXECUTABLE=/mnt/pi/usr/bin/python3 -Donnxruntime_BUILD_SHARED_LIB=OFF -Donnxruntime_DEV_MODE=OFF -DONNX_CUSTOM_PROTOC_EXECUTABLE=/path/to/protoc "-DPYTHON_INCLUDE_DIR=/mnt/pi/usr/include;/mnt/pi/usr/include/python3.7m" -DNUMPY_INCLUDE_DIR=/mnt/pi/folder/to/numpy/headers

After running cmake, run

$ make

6. (Optional) Build Python package

Copy the setup.py file from the source folder to the build folder and run

python3 setup.py bdist_wheel -p linux_aarch64

If targeting manylinux, unfortunately their tools do not work in the cross-compiling scenario. Run it in a docker like:

docker run  -v /usr/bin/qemu-aarch64-static:/usr/bin/qemu-aarch64-static -v `pwd`:/tmp/a -w /tmp/a --rm quay.io/pypa/manylinux2014_aarch64 /opt/python/cp37-cp37m/bin/python3 setup.py bdist_wheel

This is not needed if you only want to target a specfic Linux distribution (i.e. Ubuntu).

Native compiling on Linux ARM device

Easy, slower

Docker build runs on a Raspberry Pi 3B with Raspbian Stretch Lite OS (Desktop version will run out memory when linking the .so file) will take 8-9 hours in total.

sudo apt-get update
sudo apt-get install -y \
    sudo \
    build-essential \
    curl \
    libcurl4-openssl-dev \
    libssl-dev \
    wget \
    python3 \
    python3-pip \
    python3-dev \
    git \
    tar

pip3 install --upgrade pip
pip3 install --upgrade setuptools
pip3 install --upgrade wheel
pip3 install numpy

# Build the latest cmake
mkdir /code
cd /code
wget https://cmake.org/files/v3.13/cmake-3.16.1.tar.gz;
tar zxf cmake-3.16.1.tar.gz

cd /code/cmake-3.16.1
./configure --system-curl
make
sudo make install

# Prepare onnxruntime Repo
cd /code
git clone --recursive https://github.com/Microsoft/onnxruntime

# Start the basic build
cd /code/onnxruntime
./build.sh --config MinSizeRel --update --build

# Build Shared Library
./build.sh --config MinSizeRel --build_shared_lib

# Build Python Bindings and Wheel
./build.sh --config MinSizeRel --enable_pybind --build_wheel

# Build Output
ls -l /code/onnxruntime/build/Linux/MinSizeRel/*.so
ls -l /code/onnxruntime/build/Linux/MinSizeRel/dist/*.whl

Cross compiling on Windows

Using Visual C++ compilers

1. Download and install Visual C++ compilers and libraries for ARM(64). If you have Visual Studio installed, please use the Visual Studio Installer (look under the section Individual components after choosing to modify Visual Studio) to download and install the corresponding ARM(64) compilers and libraries.

2. Use .\build.bat and specify --arm or --arm64 as the build option to start building. Preferably use Developer Command Prompt for VS or make sure all the installed cross-compilers are findable from the command prompt being used to build using the PATH environmant variable.

---

Android

Prerequisites

The SDK and NDK packages can be installed via Android Studio or the sdkmanager command line tool. Android Studio is more convenient but a larger installation. The command line tools are smaller and usage can be scripted, but are a little more complicated to setup. They also require a Java runtime environment to be available.

General Info:

• API levels: https://developer.android.com/guide/topics/manifest/uses-sdk-element.html
• Android ABIs: https://developer.android.com/ndk/guides/abis
• System Images: https://developer.android.com/topic/generic-system-image

Android Studio

Install Android Studio from https://developer.android.com/studio

Install any additional SDK Platforms if necessary

• File->Settings->Appearance & Behavior->System Settings->Android SDK to see what is currently installed
  • Note that the SDK path you need to use as --android_sdk_path when building ORT is also on this configuration page
  • Most likely you don't require additional SDK Platform packages as the latest platform can target earlier API levels.

Install an NDK version

• File->Settings->Appearance & Behavior->System Settings->Android SDK
  • 'SDK Tools' tab
    • Select 'Show package details' checkbox at the bottom to see specific versions. By default the latest will be installed which should be fine.
• The NDK path will be the 'ndk/{version}' subdirectory of the SDK path shown
  • e.g. if 21.1.6352462 is installed it will be {SDK path}/ndk/21.1.6352462

sdkmanager from command line tools

• If necessary install the Java Runtime Environment and set the JAVA_HOME environment variable to point to it

  • https://www.java.com/en/download/
  • Windows note: You MUST install the 64-bit version (https://www.java.com/en/download/manual.jsp) otherwise sdkmanager will only list x86 packages and the latest NDK is x64 only.

• For sdkmanager to work it needs a certain directory structure. First create the top level directory for the Android infrastructure.

  • in our example we'll call that .../Android/

• Download the command line tools from the 'Command line tools only' section towards the bottom of https://developer.android.com/studio

• Create a directory called 'cmdline-tools' under your top level directory

  • giving .../Android/cmdline-tools

• extract the 'tools' directory from the command line tools zip file into this directory

  • giving .../Android/cmdline-tools/tools
  • Windows note: preferably extract using 7-zip. If using the built in Windows zip extract tool you will need to fix the directory structure by moving the jar files from tools\lib\_ up to tools\lib
    • See https://stackoverflow.com/questions/27364963/could-not-find-or-load-main-class-com-android-sdkmanager-main

• you should now be able to run Android/cmdline-tools/bin/sdkmanager[.bat] successfully

  • if you see an error about it being unable to save settings and the sdkmanager help text, your directory structure is incorrect.
    • see the final steps in this answer to double check: https://stackoverflow.com/a/61176718

• Run .../Android/cmdline-tools/bin/sdkmanager --list to see the packages available

• Install the SDK Platform

  • Generally installing the latest is fine. You pick an API level when compiling the code and the latest platform will support many recent API levels
    • e.g. sdkmanager --install "platforms;android-29"
  • This will install into the 'platforms' directory of our top level directory
    • so the 'Android' directory in our example
  • The SDK path to use as --android_sdk_path when building is this top level directory

• Install the NDK

  • Find the available NDK versions by running sdkmanager --list
  • Install
    • you can install a specific version or the latest (called 'ndk-bundle')
    • e.g. sdkmanager --install "ndk;21.1.6352462"
      • NDK path in our example with this install would be .../Android/ndk/21.1.6352462
    • NOTE: If you install the ndk-bundle package the path will be .../Android/ndk-bundle as there's no version number

Android Build Instructions

Cross compiling on Windows

The Ninja generator needs to be used to build on Windows as the Visual Studio generator doesn't support Android.

./build.bat --android --android_sdk_path <android sdk path> --android_ndk_path <android ndk path> --android_abi <android abi, e.g., arm64-v8a (default) or armeabi-v7a> --android_api <android api level, e.g., 27 (default)> --cmake_generator Ninja

e.g. using the paths from our example

./build.bat --android --android_sdk_path .../Android --android_ndk_path .../Android/ndk/21.1.6352462 --android_abi arm64-v8a --android_api 27 --cmake_generator Ninja

Cross compiling on Linux and macOS

./build.sh --android --android_sdk_path <android sdk path> --android_ndk_path <android ndk path> --android_abi <android abi, e.g., arm64-v8a (default) or armeabi-v7a> --android_api <android api level, e.g., 27 (default)>

Build Android Archive (AAR)

Android Archive (AAR) files, which can be imported directly in Android Studio, will be generated in your_build_dir/java/build/outputs/aar, by using the above building commands with --build_java

To build on Windows with --build_java enabled you must also:

• set JAVA_HOME to the path to your JDK install
  • this could be the JDK from Android Studio, or a standalone JDK install
  • e.g. Powershell: $env:JAVA_HOME="C:\Program Files\Java\jdk-15" CMD: set JAVA_HOME=C:\Program Files\Java\jdk-15
• install Gradle and add the directory to the PATH
  • e.g. Powershell: $env:PATH="$env:PATH;C:\Gradle\gradle-6.6.1\bin" CMD: set PATH=%PATH%;C:\Gradle\gradle-6.6.1\bin
• run the build from an admin window
  • the Java build needs permissions to create a symlink, which requires an admin window

Android NNAPI Execution Provider

If you want to use NNAPI Execution Provider on Android, see NNAPI Execution Provider.

Build Instructions

Android NNAPI Execution Provider can be built using building commands in Android Build instructions with --use_nnapi

---

iOS

Prerequisites

• A Mac computer with latest macOS
• Xcode, https://developer.apple.com/xcode/
• CMake, https://cmake.org/download/
• Python 3, https://www.python.org/downloads/mac-osx/

General Info:

• iOS Platforms

  The following two platforms are supported

  • iOS device (iPhone, iPad) with arm64 architecture
  • iOS simulator with x86_64 architecture

  armv7, armv7s and i386 architectures are not currently supported.

  tvOS and watchOS platforms are not currently supported.

• apple_deploy_target

  Specify the minimum version of the target platform (iOS) on which the target binaries are to be deployed.

• Code Signing

  If the development team ID which has a valid code signing certificate is specified, Xcode will code sign the onnxruntime library in the building process, otherwise, the onnxruntime will be built without code signing. It may be required or desired to code sign the library for iOS devices. For more information, see Code Signing.

Build Instructions

Run one of the following build scripts from the ONNX Runtime repository root,

Cross build for iOS simulator

./build.sh --config <Release|Debug|RelWithDebInfo|MinSizeRel> --use_xcode \
           --ios --ios_sysroot iphonesimulator --osx_arch x86_64 --apple_deploy_target <minimal iOS version>

Cross build for iOS device

./build.sh --config <Release|Debug|RelWithDebInfo|MinSizeRel> --use_xcode \
           --ios --ios_sysroot iphoneos --osx_arch arm64 --apple_deploy_target <minimal iOS version>

Cross build for iOS device and code sign the library

./build.sh --config <Release|Debug|RelWithDebInfo|MinSizeRel> --use_xcode \
           --ios --ios_sysroot iphoneos --osx_arch arm64 --apple_deploy_target <minimal iOS version> \
           --xcode_code_signing_team_id <Your Apple developmemt team ID>

---

AMD MIGraphX

See more information on the MIGraphX Execution Provider here.

Prerequisites

• Install ROCM
  • The MIGraphX execution provider for ONNX Runtime is built and tested with ROCM3.3
• Install MIGraphX
  • The path to MIGraphX installation must be provided via the --migraphx_home parameter.

Build Instructions

Linux

./build.sh --config <Release|Debug|RelWithDebInfo> --use_migraphx --migraphx_home <path to MIGraphX home>

Dockerfile instructions are available here

---

Training

Baseline CPU

Build Instructions

To build ORT with training support add --enable_training build instruction.

All other build options are the same for inferencing as they are for training.

Windows

.\build.bat --config RelWithDebInfo --build_shared_lib --parallel --enable_training

The default Windows CMake Generator is Visual Studio 2017, but you can also use the newer Visual Studio 2019 by passing --cmake_generator "Visual Studio 16 2019" to .\build.bat

Linux/macOS

./build.sh --config RelWithDebInfo --build_shared_lib --parallel --enable_training

Training Enabled Execution Providers

CUDA

Prerequisites

The default NVIDIA GPU build requires CUDA runtime libraries installed on the system:

• CUDA 10.2
• cuDNN 8.0
• NCCL 2.7
• OpenMPI 4.0.4
  • See install_openmpi.sh

These dependency versions should reflect what is in Dockerfile.training.

Build instructions

1. Checkout this code repo with git clone https://github.com/microsoft/onnxruntime

2. Set the environment variables: adjust the path for location your build machine

   export CUDA_HOME=<location for CUDA libs> # e.g. /usr/local/cuda
   export CUDNN_HOME=<location for cuDNN libs> # e.g. /usr/local/cuda
   export CUDACXX=<location for NVCC> #e.g. /usr/local/cuda/bin/nvcc
   export PATH=<location for openmpi/bin/>:$PATH
   export LD_LIBRARY_PATH=<location for openmpi/lib/>:$LD_LIBRARY_PATH
   export MPI_CXX_INCLUDE_PATH=<location for openmpi/include/>
   source <location of the mpivars script> # e.g. /data/intel/impi/2018.3.222/intel64/bin/mpivars.sh
   

3. Create the ONNX Runtime wheel

   • Change to the ONNX Runtime repo base folder: cd onnxruntime
   • Run ./build.sh --enable_training --use_cuda --config=RelWithDebInfo --build_wheel

   This produces the .whl file in ./build/Linux/RelWithDebInfo/dist for ONNX Runtime Training.

ROCM

Prerequisites

The default AMD GPU build requires ROCM software toolkit installed on the system:

• ROCM
• OpenMPI 4.0.4
  • See install_openmpi.sh

These dependency versions should reflect what is in Dockerfile.training.

Build instructions

1. Checkout this code repo with git clone https://github.com/microsoft/onnxruntime

2. Create the ONNX Runtime wheel

   • Change to the ONNX Runtime repo base folder: cd onnxruntime
   • Run ./build.sh --config RelWithDebInfo --enable_training --build_wheel --use_rocm --rocm_home /opt/rocm --nccl_home /opt/rocm --mpi_home <location for openmpi>

   This produces the .whl file in ./build/Linux/RelWithDebInfo/dist for ONNX Runtime Training.

DNNL and MKLML

Build Instructions

Linux

./build.sh --enable_training --use_dnnl

Windows

.\build.bat --enable_training --use_dnnl

Add --build_wheel to build the ONNX Runtime wheel

This will produce a .whl file in build/Linux/RelWithDebInfo/dist for ONNX Runtime Training