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 <div class="section" id="installing-mxnet-froum-source-on-os-x-mac">
 <span id="installing-mxnet-froum-source-on-os-x-mac"></span><h1>Installing MXNet froum source on OS X (Mac)<a class="headerlink" href="#installing-mxnet-froum-source-on-os-x-mac" title="Permalink to this headline">¶</a></h1>
 <p><strong>NOTE:</strong> For prebuild MXNet with Python installation, please refer to the <a class="reference external" href="http://mxnet.io/get_started/install.html">new install guide</a>.</p>
 <p>Installing MXNet is a two-step process:</p>
 <ol class="simple">
 <li>Build the shared library from the MXNet C++ source code.</li>
 <li>Install the supported language-specific packages for MXNet.</li>
 </ol>
 <p><strong>Note:</strong> To change the compilation options for your build, edit the <code class="docutils literal"><span class="pre">make/config.mk</span></code> file and submit a build request with the <code class="docutils literal"><span class="pre">make</span></code> command.</p>
 <div class="section" id="prepare-environment-for-gpu-installation">
 <span id="prepare-environment-for-gpu-installation"></span><h2>Prepare Environment for GPU Installation<a class="headerlink" href="#prepare-environment-for-gpu-installation" title="Permalink to this headline">¶</a></h2>
 <p>This section is optional. Skip to next section if you don’t plan to use GPUs. If you plan to build with GPU, you need to set up the environment for CUDA and cuDNN.</p>
 <p>First, download and install <a class="reference external" href="https://developer.nvidia.com/cuda-toolkit">CUDA 8 toolkit</a>.</p>
 <p>Once you have the CUDA Toolkit installed you will need to set up the required environment variables by adding the following to your ~/.bash_profile file:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    <span class="nb">export</span> <span class="nv">CUDA_HOME</span><span class="o">=</span>/usr/local/cuda
     <span class="nb">export</span> <span class="nv">DYLD_LIBRARY_PATH</span><span class="o">=</span><span class="s2">"</span><span class="nv">$CUDA_HOME</span><span class="s2">/lib:</span><span class="nv">$DYLD_LIBRARY_PATH</span><span class="s2">"</span>
     <span class="nb">export</span> <span class="nv">PATH</span><span class="o">=</span><span class="s2">"</span><span class="nv">$CUDA_HOME</span><span class="s2">/bin:</span><span class="nv">$PATH</span><span class="s2">"</span>
 </pre></div>
 </div>
 <p>Reload ~/.bash_profile file and install dependencies:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    . ~/.bash_profile
     brew install coreutils
     brew tap caskroom/cask
 </pre></div>
 </div>
 <p>Then download <a class="reference external" href="https://developer.nvidia.com/cudnn">cuDNN 5</a>.</p>
 <p>Unzip the file and change to the cudnn root directory. Move the header files and libraries to your local CUDA Toolkit folder:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    $ sudo mv include/cudnn.h /Developer/NVIDIA/CUDA-8.0/include/
     $ sudo mv lib/libcudnn* /Developer/NVIDIA/CUDA-8.0/lib
     $ sudo ln -s /Developer/NVIDIA/CUDA-8.0/lib/libcudnn* /usr/local/cuda/lib/
 </pre></div>
 </div>
 <p>Now we can start to build MXNet.</p>
 </div>
 <div class="section" id="build-the-shared-library">
 <span id="build-the-shared-library"></span><h2>Build the Shared Library<a class="headerlink" href="#build-the-shared-library" title="Permalink to this headline">¶</a></h2>
 <div class="section" id="install-mxnet-dependencies">
 <span id="install-mxnet-dependencies"></span><h3>Install MXNet dependencies<a class="headerlink" href="#install-mxnet-dependencies" title="Permalink to this headline">¶</a></h3>
 <p>Install the dependencies, required for MXNet, with the following commands:</p>
 <ul class="simple">
 <li><a class="reference external" href="http://brew.sh/">Homebrew</a></li>
 <li>OpenBLAS and homebrew/science (for linear algebraic operations)</li>
 <li>OpenCV (for computer vision operations)</li>
 </ul>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    <span class="c1"># Paste this command in Mac terminal to install Homebrew</span>
     /usr/bin/ruby -e <span class="s2">"</span><span class="k">$(</span>curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install<span class="k">)</span><span class="s2">"</span>

     <span class="c1"># Insert the Homebrew directory at the top of your PATH environment variable</span>
     <span class="nb">export</span> <span class="nv">PATH</span><span class="o">=</span>/usr/local/bin:/usr/local/sbin:<span class="nv">$PATH</span>
 </pre></div>
 </div>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    brew update
     brew install pkg-config
     brew install graphviz
     brew install openblas
     brew tap homebrew/science
     brew install opencv
     <span class="c1"># For getting pip</span>
     brew install python
     <span class="c1"># For visualization of network graphs</span>
     pip install graphviz
     <span class="c1"># Jupyter notebook</span>
     pip install jupyter
 </pre></div>
 </div>
 </div>
 <div class="section" id="build-mxnet-shared-library">
 <span id="build-mxnet-shared-library"></span><h3>Build MXNet Shared Library<a class="headerlink" href="#build-mxnet-shared-library" title="Permalink to this headline">¶</a></h3>
 <p>After you have installed the dependencies, pull the MXNet source code from Git and build MXNet to produce an MXNet library called <code class="docutils literal"><span class="pre">libmxnet.so</span></code>.</p>
 <p>The file called <code class="docutils literal"><span class="pre">osx.mk</span></code> has the configuration required for building MXNet on OS X. First copy <code class="docutils literal"><span class="pre">make/osx.mk</span></code> into <code class="docutils literal"><span class="pre">config.mk</span></code>, which is used by the <code class="docutils literal"><span class="pre">make</span></code> command:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    git clone --recursive https://github.com/dmlc/mxnet ~/mxnet
     <span class="nb">cd</span> ~/mxnet
     cp make/osx.mk ./config.mk
     <span class="nb">echo</span> <span class="s2">"USE_BLAS = openblas"</span> >> ./config.mk
     <span class="nb">echo</span> <span class="s2">"ADD_CFLAGS += -I/usr/local/opt/openblas/include"</span> >> ./config.mk
     <span class="nb">echo</span> <span class="s2">"ADD_LDFLAGS += -L/usr/local/opt/openblas/lib"</span> >> ./config.mk
     <span class="nb">echo</span> <span class="s2">"ADD_LDFLAGS += -L/usr/local/lib/graphviz/"</span> >> ./config.mk
     make -j<span class="k">$(</span>sysctl -n hw.ncpu<span class="k">)</span>
 </pre></div>
 </div>
 <p>If building with <code class="docutils literal"><span class="pre">GPU</span></code> support, add the following configuration to config.mk and build:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    <span class="nb">echo</span> <span class="s2">"USE_CUDA = 1"</span> >> ./config.mk
     <span class="nb">echo</span> <span class="s2">"USE_CUDA_PATH = /usr/local/cuda"</span> >> ./config.mk
     <span class="nb">echo</span> <span class="s2">"USE_CUDNN = 1"</span> >> ./config.mk
     make
 </pre></div>
 </div>
 <p><strong>Note:</strong> To change build parameters, edit <code class="docutils literal"><span class="pre">config.mk</span></code>.</p>
 <p><p> </p>
 </p>
 <p>We have installed MXNet core library. Next, we will install MXNet interface package for the programming language of your choice:</p>
 <ul class="simple">
 <li><a class="reference external" href="#install-the-mxnet-package-for-r">R</a></li>
 <li><a class="reference external" href="#install-the-mxnet-package-for-julia">Julia</a></li>
 <li><a class="reference external" href="#install-the-mxnet-package-for-scala">Scala</a></li>
 <li><a class="reference external" href="#install-the-mxnet-package-for-perl">Perl</a></li>
 </ul>
 </div>
 </div>
 <div class="section" id="install-the-mxnet-package-for-r">
 <span id="install-the-mxnet-package-for-r"></span><h2>Install the MXNet Package for R<a class="headerlink" href="#install-the-mxnet-package-for-r" title="Permalink to this headline">¶</a></h2>
 <p>You have 2 options:</p>
 <ol class="simple">
 <li>Building MXNet with the Prebuilt Binary Package</li>
 <li>Building MXNet from Source Code</li>
 </ol>
 <div class="section" id="building-mxnet-with-the-prebuilt-binary-package">
 <span id="building-mxnet-with-the-prebuilt-binary-package"></span><h3>Building MXNet with the Prebuilt Binary Package<a class="headerlink" href="#building-mxnet-with-the-prebuilt-binary-package" title="Permalink to this headline">¶</a></h3>
 <p>For OS X (Mac) users, MXNet provides a prebuilt binary package for CPUs. The prebuilt package is updated weekly. You can install the package directly in the R console using the following commands:</p>
 <div class="highlight-r"><div class="highlight"><pre><span></span>  cran <span class="o"><-</span> <span class="kp">getOption</span><span class="p">(</span><span class="s">"repos"</span><span class="p">)</span>
   cran<span class="p">[</span><span class="s">"dmlc"</span><span class="p">]</span> <span class="o"><-</span> <span class="s">"https://s3-us-west-2.amazonaws.com/apache-mxnet/R/CRAN/"</span>
   <span class="kp">options</span><span class="p">(</span>repos <span class="o">=</span> cran<span class="p">)</span>
   install.packages<span class="p">(</span><span class="s">"mxnet"</span><span class="p">)</span>
 </pre></div>
 </div>
 </div>
 <div class="section" id="building-mxnet-from-source-code">
 <span id="building-mxnet-from-source-code"></span><h3>Building MXNet from Source Code<a class="headerlink" href="#building-mxnet-from-source-code" title="Permalink to this headline">¶</a></h3>
 <p>Run the following commands to install the MXNet dependencies and build the MXNet R package.</p>
 <div class="highlight-r"><div class="highlight"><pre><span></span>    Rscript <span class="o">-</span>e <span class="s">"install.packages('devtools', repo = 'https://cran.rstudio.com')"</span>
 </pre></div>
 </div>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    <span class="nb">cd</span> R-package
     Rscript -e <span class="s2">"library(devtools); library(methods); options(repos=c(CRAN='https://cran.rstudio.com')); install_deps(dependencies = TRUE)"</span>
     <span class="nb">cd</span> ..
     make rpkg
 </pre></div>
 </div>
 <p><strong>Note:</strong> R-package is a folder in the MXNet source.</p>
 <p>These commands create the MXNet R package as a tar.gz file that you can install as an R package. To install the R package, run the following command, use your MXNet version number:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    R CMD INSTALL mxnet_current_r.tar.gz
 </pre></div>
 </div>
 </div>
 </div>
 <div class="section" id="install-the-mxnet-package-for-julia">
 <span id="install-the-mxnet-package-for-julia"></span><h2>Install the MXNet Package for Julia<a class="headerlink" href="#install-the-mxnet-package-for-julia" title="Permalink to this headline">¶</a></h2>
 <p>The MXNet package for Julia is hosted in a separate repository, MXNet.jl, which is available on <a class="reference external" href="https://github.com/dmlc/MXNet.jl">GitHub</a>. To use Julia binding it with an existing libmxnet installation, set the <code class="docutils literal"><span class="pre">MXNET_HOME</span></code> environment variable by running the following command:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    <span class="nb">export</span> <span class="nv">MXNET_HOME</span><span class="o">=</span>/<path to>/libmxnet
 </pre></div>
 </div>
 <p>The path to the existing libmxnet installation should be the root directory of libmxnet. In other words, you should be able to find the <code class="docutils literal"><span class="pre">libmxnet.so</span></code> file at <code class="docutils literal"><span class="pre">$MXNET_HOME/lib</span></code>. For example, if the root directory of libmxnet is <code class="docutils literal"><span class="pre">~</span></code>, you would run the following command:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    <span class="nb">export</span> <span class="nv">MXNET_HOME</span><span class="o">=</span>/~/libmxnet
 </pre></div>
 </div>
 <p>You might want to add this command to your <code class="docutils literal"><span class="pre">~/.bashrc</span></code> file. If you do, you can install the Julia package in the Julia console using the following command:</p>
 <div class="highlight-julia"><div class="highlight"><pre><span></span>    <span class="n">Pkg</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="s">"MXNet"</span><span class="p">)</span>
 </pre></div>
 </div>
 <p>For more details about installing and using MXNet with Julia, see the <a class="reference external" href="http://dmlc.ml/MXNet.jl/latest/user-guide/install/">MXNet Julia documentation</a>.</p>
 </div>
 <div class="section" id="install-the-mxnet-package-for-scala">
 <span id="install-the-mxnet-package-for-scala"></span><h2>Install the MXNet Package for Scala<a class="headerlink" href="#install-the-mxnet-package-for-scala" title="Permalink to this headline">¶</a></h2>
 <p>Before you build MXNet for Scala from source code, you must complete <a class="reference external" href="#build-the-shared-library">building the shared library</a>. After you build the shared library, run the following command from the MXNet source root directory to build the MXNet Scala package:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    make scalapkg
 </pre></div>
 </div>
 <p>This command creates the JAR files for the assembly, core, and example modules. It also creates the native library in the <code class="docutils literal"><span class="pre">native/{your-architecture}/target</span> <span class="pre">directory</span></code>, which you can use to cooperate with the core module.</p>
 <p>To install the MXNet Scala package into your local Maven repository, run the following command from the MXNet source root directory:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    make scalainstall
 </pre></div>
 </div>
 </div>
 <div class="section" id="install-the-mxnet-package-for-perl">
 <span id="install-the-mxnet-package-for-perl"></span><h2>Install the MXNet Package for Perl<a class="headerlink" href="#install-the-mxnet-package-for-perl" title="Permalink to this headline">¶</a></h2>
 <p>Before you build MXNet for Perl from source code, you must complete <a class="reference external" href="#build-the-shared-library">building the shared library</a>.
 After you build the shared library, run the following command from the MXNet source root directory to build the MXNet Perl package:</p>
 <div class="highlight-bash"><div class="highlight"><pre><span></span>    brew install swig
     sudo sh -c <span class="s1">'curl -L https://cpanmin.us | perl - App::cpanminus'</span>
     sudo cpanm -q -n PDL Mouse Function::Parameters

     <span class="nv">MXNET_HOME</span><span class="o">=</span><span class="si">${</span><span class="nv">PWD</span><span class="si">}</span>
     <span class="nb">export</span> <span class="nv">PERL5LIB</span><span class="o">=</span><span class="si">${</span><span class="nv">HOME</span><span class="si">}</span>/perl5/lib/perl5

     <span class="nb">cd</span> <span class="si">${</span><span class="nv">MXNET_HOME</span><span class="si">}</span>/perl-package/AI-MXNetCAPI/
     perl Makefile.PL <span class="nv">INSTALL_BASE</span><span class="o">=</span><span class="si">${</span><span class="nv">HOME</span><span class="si">}</span>/perl5
     make
     install_name_tool -change lib/libmxnet.so <span class="se">\</span>
         <span class="si">${</span><span class="nv">MXNET_HOME</span><span class="si">}</span>/lib/libmxnet.so <span class="se">\</span>
         blib/arch/auto/AI/MXNetCAPI/MXNetCAPI.bundle
     make install

     <span class="nb">cd</span> <span class="si">${</span><span class="nv">MXNET_HOME</span><span class="si">}</span>/perl-package/AI-NNVMCAPI/
     perl Makefile.PL <span class="nv">INSTALL_BASE</span><span class="o">=</span><span class="si">${</span><span class="nv">HOME</span><span class="si">}</span>/perl5
     make
     install_name_tool -change lib/libmxnet.so <span class="se">\</span>
             <span class="si">${</span><span class="nv">MXNET_HOME</span><span class="si">}</span>/lib/libmxnet.so <span class="se">\</span>
             blib/arch/auto/AI/NNVMCAPI/NNVMCAPI.bundle
     make install

     <span class="nb">cd</span> <span class="si">${</span><span class="nv">MXNET_HOME</span><span class="si">}</span>/perl-package/AI-MXNet/
     perl Makefile.PL <span class="nv">INSTALL_BASE</span><span class="o">=</span><span class="si">${</span><span class="nv">HOME</span><span class="si">}</span>/perl5
     make install
 </pre></div>
 </div>
 </div>
 <div class="section" id="next-steps">
 <span id="next-steps"></span><h2>Next Steps<a class="headerlink" href="#next-steps" title="Permalink to this headline">¶</a></h2>
 <div class="toctree-wrapper compound">
 <ul>
 <li class="toctree-l1"><a class="reference external" href="http://mxnet.io/tutorials/index.html">Tutorials</a></li>
 <li class="toctree-l1"><a class="reference external" href="http://mxnet.io/how_to/index.html">How To</a></li>
 <li class="toctree-l1"><a class="reference external" href="http://mxnet.io/architecture/index.html">Architecture</a></li>
 </ul>
 </div>
 </div>
 </div>
 <div class="container">
 <div class="footer">
 <p> © 2015-2017 DMLC. All rights reserved. </p>
 </div>
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 <div aria-label="main navigation" class="sphinxsidebar rightsidebar" role="navigation">
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 <h3><a href="../index.html">Table Of Contents</a></h3>
 <ul>
 <li><a class="reference internal" href="#">Installing MXNet froum source on OS X (Mac)</a><ul>
 <li><a class="reference internal" href="#prepare-environment-for-gpu-installation">Prepare Environment for GPU Installation</a></li>
 <li><a class="reference internal" href="#build-the-shared-library">Build the Shared Library</a><ul>
 <li><a class="reference internal" href="#install-mxnet-dependencies">Install MXNet dependencies</a></li>
 <li><a class="reference internal" href="#build-mxnet-shared-library">Build MXNet Shared Library</a></li>
 </ul>
 </li>
 <li><a class="reference internal" href="#install-the-mxnet-package-for-r">Install the MXNet Package for R</a><ul>
 <li><a class="reference internal" href="#building-mxnet-with-the-prebuilt-binary-package">Building MXNet with the Prebuilt Binary Package</a></li>
 <li><a class="reference internal" href="#building-mxnet-from-source-code">Building MXNet from Source Code</a></li>
 </ul>
 </li>
 <li><a class="reference internal" href="#install-the-mxnet-package-for-julia">Install the MXNet Package for Julia</a></li>
 <li><a class="reference internal" href="#install-the-mxnet-package-for-scala">Install the MXNet Package for Scala</a></li>
 <li><a class="reference internal" href="#install-the-mxnet-package-for-perl">Install the MXNet Package for Perl</a></li>
 <li><a class="reference internal" href="#next-steps">Next Steps</a></li>
 </ul>
 </li>
 </ul>
 </div>
 </div>
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