Overview Before you begin Setup and download libraries Build the Arm Compute Library Build the Boost Library Build the Google protobuf Library Generate the TensorFlow protobuf Library Build the Google FlatBuffers library Build Arm NN Test your build Next steps
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Build Arm NN

Configure the Arm NN SDK build using CMake. To do this, you will need to change your directory to the Arm NN directory and enter the following parameters to CMake:

-DARMCOMPUTE_ROOT

The location of your Compute Library source files directory.

-DARMCOMPUTE_BUILD_DIR

The location of your Compute Library build directory.

-DBOOST_ROOT

The directory used for Boost (see prefix flag used above).

-DTF_GENERATED_SOURCES

The location of your protobuf generated source files.

-DPROTOBUF_ROOT

The location of your protobuf install directory.

-DBUILD_TF_LITE_PARSER

Set this =1 to ensure the TensorFlow Lite parser is built.

-DTF_LITE_GENERATED_PATH

The location of the TensorFlow Lite schema directory.

-DFLATBUFFERS_ROOT

The root directory where FlatBuffers was installed.

-DFLATC_DIR

The path to the schema compiler.

For example:

$ cd $BASEDIR/armnn
$ mkdir build
$ cd build
$ cmake .. -DARMCOMPUTE_ROOT=$BASEDIR/ComputeLibrary \ -DARMCOMPUTE_BUILD_DIR=$BASEDIR/ComputeLibrary/build \ -DBOOST_ROOT=$BASEDIR/boost \ -DTF_GENERATED_SOURCES=$BASEDIR/tensorflow-protobuf \ -DPROTOBUF_ROOT=$BASEDIR/protobuf-host \ -DBUILD_TF_LITE_PARSER=1 \ -DTF_LITE_GENERATED_PATH=$BASEDIR/tensorflow/tensorflow/lite/schema \ -DFLATBUFFERS_ROOT=$BASEDIR/flatbuffers \ -DFLATC_DIR=$BASEDIR/flatbuffers-1.12.0/build
$ make

Note

Please remove the old CMakeCache.txt file before creating a new build. To remove the file, enter the following command:

rm -f CMakeCache.txt

Duration: About 12 minutes.

If you are supporting NEON, add this argument to the CMake command: 

-DARMCOMPUTENEON=1

If you are supporting OpenCL, add this argument to the CMake command: 

-DARMCOMPUTECL=1

If you want to include Arm NN reference support, add this argument to the CMake command:

-DARMNNREF=1

If you want to include standalone sample dynamic backend tests, add the following argument to enable the tests and the dynamic backend path to the CMake command:

-DSAMPLE_DYNAMIC_BACKEND=1 -DDYNAMIC_BACKEND_PATHS=<the location of the sample dynamic backend>

Also, after building Arm NN, build the standalone sample dynamic backend using the guide in the following path: $BASEDIR/armnn/src/dynamic/README.md#standalone-dynamic-backend-build.

The following Arm NN library files will be built in the armnn/build directory:

  • libarmnn.so
  • libarmnnTfLiteParser.so
  • libarmnnTfParser.so
  • libarmnnUtils.a
  • libgatordMockService.a
  • libtimelineDecoderJson.so
  • libtimelineDecoder.so
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