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Diffstat (limited to 'delegate/BuildGuideNative.md')
| -rw-r--r-- | delegate/BuildGuideNative.md | 77 |
1 files changed, 31 insertions, 46 deletions
diff --git a/delegate/BuildGuideNative.md b/delegate/BuildGuideNative.md index 62aa5c0eda..62d6673925 100644 --- a/delegate/BuildGuideNative.md +++ b/delegate/BuildGuideNative.md @@ -23,19 +23,18 @@ natively (no cross-compilation required). This is to keep this guide simple. # Dependencies Build Dependencies: - * Tensorflow Lite: this guide uses version 2.3.1 . Other versions may work. + * Tensorflow Lite: this guide uses version 2.5.1 . Other versions may work. * Flatbuffers 1.12.0 - * Arm NN 20.11 or higher + * Arm NN 21.11 or higher Required Tools: - * Git. This guide uses version 2.17.1 . Other versions might work. - * pip. This guide uses version 20.3.3 . Other versions might work. - * wget. This guide uses version 1.17.1 . Other versions might work. - * zip. This guide uses version 3.0 . Other versions might work. - * unzip. This guide uses version 6.00 . Other versions might work. - * cmake 3.7.0 or higher. This guide uses version 3.7.2 - * scons. This guide uses version 2.4.1 . Other versions might work. - * bazel. This guide uses version 3.1.0 . Other versions might work. + * Git. This guide uses version 2.17.1. Other versions might work. + * pip. This guide uses version 20.3.3. Other versions might work. + * wget. This guide uses version 1.17.1. Other versions might work. + * zip. This guide uses version 3.0. Other versions might work. + * unzip. This guide uses version 6.00. Other versions might work. + * cmake 3.16.0 or higher. This guide uses version 3.16.0 + * scons. This guide uses version 2.4.1. Other versions might work. Our first step is to build all the build dependencies I have mentioned above. We will have to create quite a few directories. To make navigation a bit easier define a base directory for the project. At this stage we can also @@ -47,23 +46,22 @@ cd $BASEDIR apt-get update && apt-get install git wget unzip zip python git cmake scons ``` ## Build Tensorflow Lite for C++ -Tensorflow has a few dependencies on it's own. It requires the python packages pip3, numpy, wheel, -and also bazel which is used to compile Tensoflow. A description on how to build bazel can be -found [here](https://docs.bazel.build/versions/master/install-compile-source.html). There are multiple ways. -I decided to compile from source because that should work for any platform and therefore adds the most value -to this guide. Depending on your operating system and architecture there might be an easier way. +Tensorflow has a few dependencies on it's own. It requires the python packages pip3, numpy, +and also Bazel or CMake which are used to compile Tensorflow. A description on how to build bazel can be +found [here](https://docs.bazel.build/versions/master/install-compile-source.html). But for this guide, we will +compile with CMake. Depending on your operating system and architecture there might be an easier way. ```bash -# Install the required python packages -pip3 install -U pip numpy wheel - -# Bazel has a dependency on JDK (The specific JDK version depends on the bazel version but default-jdk tends to work.) -sudo apt-get install default-jdk -# Build Bazel -wget -O bazel-3.1.0-dist.zip https://github.com/bazelbuild/bazel/releases/download/3.1.0/bazel-3.1.0-dist.zip -unzip -d bazel bazel-3.1.0-dist.zip -cd bazel -env EXTRA_BAZEL_ARGS="--host_javabase=@local_jdk//:jdk" bash ./compile.sh -# This creates an "output" directory where the bazel binary can be found +wget -O cmake-3.16.0.tar.gz https://cmake.org/files/v3.16/cmake-3.16.0.tar.gz +tar -xzf cmake-3.16.0.tar.gz -C $BASEDIR/cmake-3.16.0 + +# If you have an older CMake, remove installed in order to upgrade +yes | sudo apt-get purge cmake +hash -r + +cd $BASEDIR/cmake-3.16.0 +./bootstrap +make +sudo make install ``` ### Download and build Tensorflow Lite @@ -72,26 +70,13 @@ env EXTRA_BAZEL_ARGS="--host_javabase=@local_jdk//:jdk" bash ./compile.sh cd $BASEDIR git clone https://github.com/tensorflow/tensorflow.git cd tensorflow/ -git checkout tags/v2.3.1 # Minimum version required for the delegate -``` -Before we build, a target for tensorflow lite needs to be defined in the `BUILD` file. This can be -found in the root directory of Tensorflow. Append the following target to the file: -```bash -cc_binary( - name = "libtensorflow_lite_all.so", - linkshared = 1, - deps = [ - "//tensorflow/lite:framework", - "//tensorflow/lite/kernels:builtin_ops", - ], -) +git checkout tags/v2.5.1 # Minimum version required for the delegate is v2.3.1 ``` -Now the build process can be started. When calling "configure", as below, a dialog shows up that asks the -user to specify additional options. If you don't have any particular needs to your build, decline all -additional options and choose default values. +Now the build process can be started. When calling "cmake", as below, you can specify a number of build +flags. But if you have no need to configure your tensorflow build, you can follow the exact commands below: ```bash -PATH="$BASEDIR/bazel/output:$PATH" ./configure -$BASEDIR/bazel/output/bazel build --config=opt --config=monolithic --strip=always libtensorflow_lite_all.so +cmake $BASEDIR/tensorflow +cmake --build $BASEDIR/tflite-output # This will be your DTFLITE_LIB_ROOT directory ``` ## Build Flatbuffers @@ -154,7 +139,7 @@ with the additional cmake arguments shown below cd $BASEDIR/armnn/delegate && mkdir build && cd build cmake .. -DCMAKE_BUILD_TYPE=release # A release build rather than a debug build. -DTENSORFLOW_ROOT=$BASEDIR/tensorflow \ # The root directory where tensorflow can be found. - -DTFLITE_LIB_ROOT=$BASEDIR/tensorflow/bazel-bin \ # Directory where tensorflow libraries can be found. + -DTFLITE_LIB_ROOT=$BASEDIR/tflite-output \ # Directory where tensorflow libraries can be found. -DFLATBUFFERS_ROOT=$BASEDIR/flatbuffers-1.12.0/install \ # Flatbuffers install directory. -DArmnn_DIR=$BASEDIR/armnn/build \ # Directory where the Arm NN library can be found -DARMNN_SOURCE_DIR=$BASEDIR/armnn # The top directory of the Arm NN repository. @@ -201,7 +186,7 @@ cmake .. -DARMCOMPUTE_ROOT=$BASEDIR/ComputeLibrary \ -DBUILD_UNIT_TESTS=0 \ -DBUILD_ARMNN_TFLITE_DELEGATE=1 \ -DTENSORFLOW_ROOT=$BASEDIR/tensorflow \ - -DTFLITE_LIB_ROOT=$BASEDIR/tensorflow/bazel-bin \ + -DTFLITE_LIB_ROOT=$BASEDIR/tflite-output \ -DFLATBUFFERS_ROOT=$BASEDIR/flatbuffers-1.12.0/install make ``` |