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<li class="toctree-l1"><a class="reference internal" href="../architecture/overview.html">TensorRT-LLM Architecture</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../architecture/core-concepts.html">Model Definition</a></li>
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<p class="caption" role="heading"><span class="caption-text">Advanced</span></p>
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<li class="toctree-l1"><a class="reference internal" href="../advanced/gpt-attention.html">Multi-Head, Multi-Query, and Group-Query Attention</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../advanced/expert-parallelism.html">Expert Parallelism in TensorRT-LLM</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../reference/precision.html">Numerical Precision</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../reference/memory.html">Memory Usage of TensorRT-LLM</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../python-api/tensorrt_llm.quantization.html">Quantization</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../python-api/tensorrt_llm.runtime.html">Runtime</a></li>
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<p class="caption" role="heading"><span class="caption-text">Blogs</span></p>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../blogs/H100vsA100.html">H100 has 4.6x A100 Performance in TensorRT-LLM, achieving 10,000 tok/s at 100ms to first token</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../blogs/H200launch.html">H200 achieves nearly 12,000 tokens/sec on Llama2-13B with TensorRT-LLM</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../blogs/Falcon180B-H200.html">Falcon-180B on a single H200 GPU with INT4 AWQ, and 6.7x faster Llama-70B over A100</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../blogs/quantization-in-TRT-LLM.html">Speed up inference with SOTA quantization techniques in TRT-LLM</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../blogs/XQA-kernel.html">New XQA-kernel provides 2.4x more Llama-70B throughput within the same latency budget</a></li>
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<section id="installing-on-windows">
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<span id="windows"></span><h1>Installing on Windows<a class="headerlink" href="#installing-on-windows" title="Link to this heading"></a></h1>
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<div class="admonition note">
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<p class="admonition-title">Note</p>
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<p>The Windows release of TensorRT-LLM is currently in beta. We recommend using the <code class="docutils literal notranslate"><span class="pre">rel</span></code> branch for the most stable experience.</p>
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</div>
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<p><strong>Prerequisites</strong></p>
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<ol class="arabic">
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<li><p>Clone this repository using <a class="reference external" href="https://git-scm.com/download/win">Git for Windows</a>.</p></li>
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<li><p>Install the dependencies one of two ways:</p>
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<ol class="arabic simple">
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<li><p>Run the provided PowerShell script; <code class="docutils literal notranslate"><span class="pre">setup_env.ps1</span></code>, which installs Python, CUDA 12.2, and Microsoft MPI automatically with default settings. Run PowerShell as Administrator to use the script.</p></li>
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</ol>
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<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>./setup_env.ps1<span class="w"> </span><span class="o">[</span>-skipCUDA<span class="o">]</span><span class="w"> </span><span class="o">[</span>-skipPython<span class="o">]</span><span class="w"> </span><span class="o">[</span>-skipMPI<span class="o">]</span>
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</pre></div>
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</div>
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<ol class="arabic simple" start="2">
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<li><p>Install the dependencies one at a time.</p>
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<ol class="arabic simple">
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<li><p>Install <a class="reference external" href="https://www.python.org/downloads/windows/">Python 3.10</a>.</p>
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<ol class="arabic simple">
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<li><p>Select <strong>Add python.exe to PATH</strong> at the start of the installation. The installation may only add the <code class="docutils literal notranslate"><span class="pre">python</span></code> command, but not the <code class="docutils literal notranslate"><span class="pre">python3</span></code> command.</p></li>
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<li><p>Navigate to the installation path <code class="docutils literal notranslate"><span class="pre">%USERPROFILE%\AppData\Local\Programs\Python\Python310</span></code> (<code class="docutils literal notranslate"><span class="pre">AppData</span></code> is a hidden folder) and copy <code class="docutils literal notranslate"><span class="pre">python.exe</span></code> to <code class="docutils literal notranslate"><span class="pre">python3.exe</span></code>.</p></li>
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</ol>
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</li>
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</ol>
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</li>
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<li><p>Install <a class="reference external" href="https://developer.nvidia.com/cuda-12-2-2-download-archive?target_os=Windows&amp;target_arch=x86_64">CUDA 12.2 Toolkit</a>. Use the Express Installation option. Installation may require a restart.</p></li>
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<li><p>Download and install <a class="reference external" href="https://www.microsoft.com/en-us/download/details.aspx?id=57467">Microsoft MPI</a>. You will be prompted to choose between an <code class="docutils literal notranslate"><span class="pre">exe</span></code>, which installs the MPI executable, and an <code class="docutils literal notranslate"><span class="pre">msi</span></code>, which installs the MPI SDK. Download and install both.</p></li>
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</ol>
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</li>
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<li><p>Download and unzip <a class="reference external" href="https://developer.nvidia.com/cudnn">cuDNN</a>.</p>
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<ol class="arabic">
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<li><p>Move the folder to a location you can reference later, such as <code class="docutils literal notranslate"><span class="pre">%USERPROFILE%\inference\cuDNN</span></code>.</p></li>
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<li><p>Add the libraries and binaries for cuDNN to your system’s <code class="docutils literal notranslate"><span class="pre">Path</span></code> environment variable.</p>
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<ol class="arabic simple">
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<li><p>Click the Windows button and search for <em>environment variables</em>.</p></li>
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<li><p>Click <strong>Edit the system environment variables</strong> > <strong>Environment Variables</strong>.</p></li>
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<li><p>In the new window under <em>System variables</em>, click <strong>Path</strong> > <strong>Edit</strong>. Add <strong>New</strong> lines for the <code class="docutils literal notranslate"><span class="pre">bin</span></code> and <code class="docutils literal notranslate"><span class="pre">lib</span></code> directories of cuDNN. Your <code class="docutils literal notranslate"><span class="pre">Path</span></code> should include lines like this:</p></li>
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</ol>
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<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>%USERPROFILE%<span class="se">\i</span>nference<span class="se">\c</span>uDNN<span class="se">\b</span>in
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%SERPROFILE%<span class="se">\i</span>nference<span class="se">\c</span>uDNN<span class="se">\l</span>ib
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</pre></div>
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</div>
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<ol class="arabic simple" start="4">
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<li><p>Click <strong>OK</strong> on all the open dialog windows.</p></li>
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<li><p>Close and re-open any existing PowerShell or Git Bash windows so they pick up the new <code class="docutils literal notranslate"><span class="pre">Path</span></code>.</p></li>
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</ol>
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</li>
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</ol>
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</li>
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</ol>
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<p><strong>Steps</strong></p>
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<ol class="arabic simple">
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<li><p>Install TensorRT-LLM.</p></li>
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</ol>
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<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>pip<span class="w"> </span>install<span class="w"> </span>tensorrt_llm<span class="w"> </span>--extra-index-url<span class="w"> </span>https://pypi.nvidia.com<span class="w"> </span>--extra-index-url<span class="w"> </span>https://download.pytorch.org/whl/cu121
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</pre></div>
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</div>
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<p>Run the following command to verify that your TensorRT-LLM installation is working properly.</p>
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<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>python<span class="w"> </span>-c<span class="w"> </span><span class="s2">"import tensorrt_llm; print(tensorrt_llm._utils.trt_version())"</span>
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</pre></div>
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</div>
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<ol class="arabic simple" start="2">
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<li><p>Build the model.</p></li>
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<li><p>Deploy the model.</p></li>
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</ol>
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