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Installation Guide

This page gives instructions on how to build and install the tvm package from scratch on various systems. It consists of two steps:

  1. First build the shared library from the C++ codes (libtvm.so for linux/osx and libtvm.dll for windows).
  2. Setup for the language packages (e.g. Python Package).

To get started, clone tvm repo from github. It is important to clone the submodules along, with --recursive option.

git clone --recursive https://github.com/dmlc/tvm

For windows users who use github tools, you can open the git shell, and type the following command.

git submodule init
git submodule update

Contents

Build the Shared Library

Our goal is to build the shared libraries:

  • On Linux/OSX the target library are libtvm.so, libtvm_topi.so
  • On Windows the target library are libtvm.dll, libtvm_topi.dll
sudo apt-get update
sudo apt-get install -y python python-dev python-setuptools gcc libtinfo-dev zlib1g-dev

The minimal building requirement is

  • A recent c++ compiler supporting C++ 11 (g++-4.8 or higher)
  • We highly recommend to build with LLVM to enable all the features.
  • It is possible to build without llvm dependency if we only want to use CUDA/OpenCL

The configuration of tvm can be modified by config.mk

  • First copy make/config.mk to the project root, on which any local modification will be ignored by git, then modify the according flags.
  • TVM optionally depends on LLVM. LLVM is required for CPU codegen that needs LLVM.
    • LLVM 4.0 or higher is needed for build with LLVM. Note that verison of LLVM from default apt may lower than 4.0.
    • Since LLVM takes long time to build from source, you can download pre-built version of LLVM from LLVM Download Page.
      • Unzip to a certain location, modify config.mk to add LLVM_CONFIG=/path/to/your/llvm/bin/llvm-config
    • You can also use LLVM Nightly Ubuntu Build
      • Note that apt-package append llvm-config with version number. For example, set LLVM_CONFIG=llvm-config-4.0 if you installed 4.0 package

We can then build tvm by make. After we build the tvm, we can proceed to build nnvm using the following script.

cd nnvm
make -j4

This will creates libnnvm_compiler.so under the nnvm/lib folder. If everything goes well, we can go to the specific language installation section.

Building on Windows

TVM support build via MSVC using cmake. The minimum required VS version is Visual Studio Community 2015 Update 3. In order to generate the VS solution file using cmake, make sure you have a recent version of cmake added to your path and then from the tvm directory:

mkdir build
cd build
cmake -G "Visual Studio 14 2015 Win64" -DCMAKE_BUILD_TYPE=Release -DCMAKE_CONFIGURATION_TYPES="Release" ..

This will generate the VS project using the MSVC 14 64 bit generator. Open the .sln file in the build directory and build with Visual Studio. In order to build with LLVM in windows, you will need to build LLVM from source. You need to run build the nnvm by running the same script under the nnvm folder.

Python Package Installation

The python package is located at python There are several ways to install the package:

  1. Set the environment variable PYTHONPATH to tell python where to find the library. For example, assume we cloned tvm on the home directory ~. then we can added the following line in ~/.bashrc. It is recommended for developers who may change the codes. The changes will be immediately reflected once you pulled the code and rebuild the project (no need to call setup again)

    export PYTHONPATH=/path/to/tvm/python:/path/to/tvm/topi/python:/path/to/tvm/nnvm/python:${PYTHONPATH}

  2. Install tvm python bindings by setup.py:

    # install tvm package for the current user
# NOTE: if you installed python via homebrew, --user is not needed during installaiton
#       it will be automatically installed to your user directory.
#       providing --user flag may trigger error during installation in such case.
cd python; python setup.py install --user; cd ..
cd topi/python; python setup.py install --user; cd ../..
cd nnvm/python; python setup.py install --user; cd ../..