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| <link rel="modulepreload" href="/docs/diffusers/pr_12652/zh/_app/immutable/chunks/CodeBlock.3dd9a65d.js"><!-- HEAD_svelte-u9bgzb_START --><meta name="hf:doc:metadata" content="{"title":"如何使用 Core ML 运行 Stable Diffusion","local":"如何使用-core-ml-运行-stable-diffusion","sections":[{"title":"Stable Diffusion Core ML 检查点","local":"stable-diffusion-core-ml-检查点","sections":[],"depth":2},{"title":"选择要使用的 Core ML 变体","local":"选择要使用的-core-ml-变体","sections":[],"depth":2},{"title":"Python中的Core ML推理","local":"python中的core-ml推理","sections":[{"title":"下载模型检查点","local":"下载模型检查点","sections":[],"depth":3},{"title":"推理","local":"python-inference","sections":[],"depth":3}],"depth":2},{"title":"Core ML 在 Swift 中的推理","local":"core-ml-在-swift-中的推理","sections":[{"title":"下载","local":"下载","sections":[],"depth":3},{"title":"推理","local":"swift-inference","sections":[],"depth":3}],"depth":2},{"title":"支持的 Diffusers 功能","local":"支持的-diffusers-功能","sections":[],"depth":2},{"title":"原生 Diffusers Swift 应用","local":"原生-diffusers-swift-应用","sections":[],"depth":2}],"depth":1}"><!-- HEAD_svelte-u9bgzb_END --> <p></p> <div class="items-center shrink-0 min-w-[100px] max-sm:min-w-[50px] justify-end ml-auto flex" style="float: right; margin-left: 10px; display: inline-flex; position: relative; z-index: 10;"><div class="inline-flex rounded-md max-sm:rounded-sm"><button class="inline-flex items-center gap-1 h-7 max-sm:h-7 px-2 max-sm:px-1.5 text-sm font-medium text-gray-800 border border-r-0 rounded-l-md max-sm:rounded-l-sm border-gray-200 bg-white hover:shadow-inner dark:border-gray-850 dark:bg-gray-950 dark:text-gray-200 dark:hover:bg-gray-800" aria-live="polite"><span class="inline-flex items-center justify-center rounded-md p-0.5 max-sm:p-0 hover:text-gray-800 dark:hover:text-gray-200"><svg class="sm:size-3.5 size-3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 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stroke="currentColor"></path></svg></button></div> </div> <h1 class="relative group"><a id="如何使用-core-ml-运行-stable-diffusion" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#如何使用-core-ml-运行-stable-diffusion"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>如何使用 Core ML 运行 Stable Diffusion</span></h1> <p data-svelte-h="svelte-1wf5vj4"><a href="https://developer.apple.com/documentation/coreml" rel="nofollow">Core ML</a> 是 Apple 框架支持的模型格式和机器学习库。如果您有兴趣在 macOS 或 iOS/iPadOS 应用中运行 Stable Diffusion 模型，本指南将展示如何将现有的 PyTorch 检查点转换为 Core ML 格式，并使用 Python 或 Swift 进行推理。</p> <p data-svelte-h="svelte-gf9zk3">Core ML 模型可以利用 Apple 设备中所有可用的计算引擎：CPU、GPU 和 Apple Neural Engine（或 ANE，一种在 Apple Silicon Mac 和现代 iPhone/iPad 中可用的张量优化加速器）。根据模型及其运行的设备，Core ML 还可以混合和匹配计算引擎，例如，模型的某些部分可能在 CPU 上运行，而其他部分在 GPU 上运行。</p> <blockquote class="tip" data-svelte-h="svelte-1dk2d10"><p>您还可以使用 PyTorch 内置的 <code>mps</code> 加速器在 Apple Silicon Mac 上运行 <code>diffusers</code> Python 代码库。这种方法在 <a href="mps">mps 指南</a> 中有详细解释，但它与原生应用不兼容。</p></blockquote> <h2 class="relative group"><a id="stable-diffusion-core-ml-检查点" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#stable-diffusion-core-ml-检查点"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Stable Diffusion Core ML 检查点</span></h2> <p data-svelte-h="svelte-ka1aol">Stable Diffusion 权重（或检查点）以 PyTorch 格式存储，因此在使用它们之前，需要将它们转换为 Core ML 格式。</p> <p data-svelte-h="svelte-145gnn0">幸运的是，Apple 工程师基于 <code>diffusers</code> 开发了 <a href="https://github.com/apple/ml-stable-diffusion#-converting-models-to-core-ml" rel="nofollow">一个转换工具</a>，用于将 PyTorch 检查点转换为 Core ML。</p> <p data-svelte-h="svelte-tea2ud">但在转换模型之前，花点时间探索 Hugging Face Hub——很可能您感兴趣的模型已经以 Core ML 格式提供：</p> <ul data-svelte-h="svelte-1kn6t00"><li><a href="https://huggingface.co/apple" rel="nofollow">Apple</a> 组织包括 Stable Diffusion 版本 1.4、1.5、2.0 基础和 2.1 基础</li> <li><a href="https://huggingface.co/coreml-community" rel="nofollow">coreml community</a> 包括自定义微调模型</li> <li>使用此 <a href="https://huggingface.co/models?pipeline_tag=text-to-image&library=coreml&p=2&sort=likes" rel="nofollow">过滤器</a> 返回所有可用的 Core ML 检查点</li></ul> <p data-svelte-h="svelte-12wixek">如果您找不到感兴趣的模型，我们建议您遵循 Apple 的 <a href="https://github.com/apple/ml-stable-diffusion#-converting-models-to-core-ml" rel="nofollow">Converting Models to Core ML</a> 说明。</p> <h2 class="relative group"><a id="选择要使用的-core-ml-变体" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#选择要使用的-core-ml-变体"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>选择要使用的 Core ML 变体</span></h2> <p data-svelte-h="svelte-spmbrr">Stable Diffusion 模型可以转换为不同的 Core ML 变体，用于不同目的：</p> <ul data-svelte-h="svelte-19sk85z"><li>注意力类型 | |
| 使用了n个块。注意力操作用于“关注”图像表示中不同区域之间的关系，并理解图像和文本表示如何相关。注意力的计算和内存消耗很大，因此存在不同的实现方式，以适应不同设备的硬件特性。对于Core ML Stable Diffusion模型，有两种注意力变体：</li></ul> <ul data-svelte-h="svelte-5kn932"><li><code>split_einsum</code>（<a href="https://machinelearning.apple.com/research/neural-engine-transformers" rel="nofollow">由Apple引入</a>）针对ANE设备进行了优化，这些设备在现代iPhone、iPad和M系列计算机中可用。</li> <li>“原始”注意力（在<code>diffusers</code>中使用的基础实现）仅与CPU/GPU兼容，不与ANE兼容。在CPU + GPU上使用<code>original</code>注意力运行模型可能比ANE<em>更快</em>。请参阅<a href="https://huggingface.co/blog/fast-mac-diffusers#performance-benchmarks" rel="nofollow">此性能基准</a>以及社区提供的<a href="https://github.com/huggingface/swift-coreml-diffusers/issues/31" rel="nofollow">一些额外测量</a>以获取更多细节。</li></ul> <ul data-svelte-h="svelte-1s3sbhj"><li>支持的推理框架。</li></ul> <ul data-svelte-h="svelte-w0ov0y"><li><code>packages</code>适用于Python推理。这可用于在尝试将转换后的Core ML模型集成到原生应用程序之前进行测试，或者如果您想探索Core ML性能但不需要支持原生应用程序。例如，具有Web UI的应用程序完全可以使用Python Core ML后端。</li> <li><code>compiled</code>模型是Swift代码所必需的。Hub中的<code>compiled</code>模型将大型UNet模型权重分成多个文件，以兼容iOS和iPadOS设备。这对应于<a href="https://github.com/apple/ml-stable-diffusion#-converting-models-to-core-ml" rel="nofollow"><code>--chunk-unet</code>转换选项</a>。如果您想支持原生应用程序，则需要选择<code>compiled</code>变体。</li></ul> <p data-svelte-h="svelte-1jptvtn">官方的Core ML Stable Diffusion<a href="https://huggingface.co/apple/coreml-stable-diffusion-v1-4/tree/main" rel="nofollow">模型</a>包括这些变体，但社区的可能有所不同：</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START -->coreml-stable-<span class="hljs-keyword">diffusion-v1-4 | |
| </span>├── README.md | |
| ├── <span class="hljs-keyword">original | |
| </span>│ ├── compiled | |
| │ └── packages | |
| └── split_einsum | |
| ├── compiled | |
| └── packages<!-- HTML_TAG_END --></pre></div> <p data-svelte-h="svelte-1atgoy3">您可以下载并使用所需的变体，如下所示。</p> <h2 class="relative group"><a id="python中的core-ml推理" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#python中的core-ml推理"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Python中的Core ML推理</span></h2> <p data-svelte-h="svelte-1ql7k8p">安装以下库以在Python中运行Core ML推理：</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START -->pip install huggingface_hub | |
| pip install git+https://github.com/apple/ml-stable-diffusion<!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="下载模型检查点" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#下载模型检查点"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>下载模型检查点</span></h3> <p data-svelte-h="svelte-xoyj6l">要在Python中运行推理，请使用存储在<code>packages</code>文件夹中的版本之一，因为<code>compiled</code>版本仅与Swift兼容。您可以选择使用<code>original</code>或<code>split_einsum</code>注意力。</p> <p data-svelte-h="svelte-1rtcxpe">这是您如何从Hub下载<code>original</code>注意力变体到一个名为<code>models</code>的目录：</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START --><span class="hljs-keyword">from</span> huggingface_hub <span class="hljs-keyword">import</span> snapshot_download | |
| <span class="hljs-keyword">from</span> pathlib <span class="hljs-keyword">import</span> Path | |
| repo_id = <span class="hljs-string">"apple/coreml-stable-diffusion-v1-4"</span> | |
| variant = <span class="hljs-string">"original/packages"</span> | |
| mo | |
| del_path = Path(<span class="hljs-string">"./models"</span>) / (repo_id.split(<span class="hljs-string">"/"</span>)[-<span class="hljs-number">1</span>] + <span class="hljs-string">"_"</span> + variant.replace(<span class="hljs-string">"/"</span>, <span class="hljs-string">"_"</span>)) | |
| snapshot_download(repo_id, allow_patterns=<span class="hljs-string">f"<span class="hljs-subst">{variant}</span>/*"</span>, local_dir=model_path, local_dir_use_symlinks=<span class="hljs-literal">False</span>) | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"Model downloaded at <span class="hljs-subst">{model_path}</span>"</span>)<!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="python-inference" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#python-inference"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>推理</span></h3> <p data-svelte-h="svelte-q77kkx">下载模型快照后，您可以使用 Apple 的 Python 脚本来测试它。</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START -->python -m python_coreml_stable_diffusion.pipeline --prompt "a photo of an astronaut riding a horse on mars" -i ./models/coreml-stable-diffusion-v1-4_original_packages/original/packages -o </path/to/output/image> --compute-unit CPU_AND_GPU --seed 93<!-- HTML_TAG_END --></pre></div> <p data-svelte-h="svelte-1xt2ga4">使用 <code>-i</code> 标志将下载的检查点路径传递给脚本。<code>--compute-unit</code> 表示您希望允许用于推理的硬件。它必须是以下选项之一：<code>ALL</code>、<code>CPU_AND_GPU</code>、<code>CPU_ONLY</code>、<code>CPU_AND_NE</code>。您也可以提供可选的输出路径和用于可重现性的种子。</p> <p data-svelte-h="svelte-1c35bv2">推理脚本假设您使用的是 Stable Diffusion 模型的原始版本，<code>CompVis/stable-diffusion-v1-4</code>。如果您使用另一个模型，您<em>必须</em>在推理命令行中使用 <code>--model-version</code> 选项指定其 Hub ID。这适用于已支持的模型以及您自己训练或微调的自定义模型。</p> <p data-svelte-h="svelte-o3r1nh">例如，如果您想使用 <a href="https://huggingface.co/stable-diffusion-v1-5/stable-diffusion-v1-5" rel="nofollow"><code>stable-diffusion-v1-5/stable-diffusion-v1-5</code></a>：</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START -->python -m python_coreml_stable_diffusion.pipeline --prompt "a photo of an astronaut riding a horse on mars" --compute-unit ALL -o output --seed 93 -i models/coreml-stable-diffusion-v1-5_original_packages --model-version stable-diffusion-v1-5/stable-diffusion-v1-5<!-- HTML_TAG_END --></pre></div> <h2 class="relative group"><a id="core-ml-在-swift-中的推理" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#core-ml-在-swift-中的推理"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>Core ML 在 Swift 中的推理</span></h2> <p data-svelte-h="svelte-1giaiqz">在 Swift 中运行推理比在 Python 中稍快，因为模型已经以 <code>mlmodelc</code> 格式编译。这在应用启动时加载模型时很明显，但如果在之后运行多次生成，则不应明显。</p> <h3 class="relative group"><a id="下载" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#下载"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>下载</span></h3> <p data-svelte-h="svelte-10xj3oz">要在您的 Mac 上运行 Swift 推理，您需要一个 <code>compiled</code> 检查点版本。我们建议您使用类似于先前示例的 Python 代码在本地下载它们，但使用 <code>compiled</code> 变体之一：</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START --><span class="hljs-keyword">from</span> huggingface_hub <span class="hljs-keyword">import</span> snapshot_download | |
| <span class="hljs-keyword">from</span> pathlib <span class="hljs-keyword">import</span> Path | |
| repo_id = <span class="hljs-string">"apple/coreml-stable-diffusion-v1-4"</span> | |
| variant = <span class="hljs-string">"original/compiled"</span> | |
| model_path = Path(<span class="hljs-string">"./models"</span>) / (repo_id.split(<span class="hljs-string">"/"</span>)[-<span class="hljs-number">1</span>] + <span class="hljs-string">"_"</span> + variant.replace(<span class="hljs-string">"/"</span>, <span class="hljs-string">"_"</span>)) | |
| snapshot_download(repo_id, allow_patterns=<span class="hljs-string">f"<span class="hljs-subst">{variant}</span>/*"</span>, local_dir=model_path, local_dir_use_symlinks=<span class="hljs-literal">False</span>) | |
| <span class="hljs-built_in">print</span>(<span class="hljs-string">f"Model downloaded at <span class="hljs-subst">{model_path}</span>"</span>)<!-- HTML_TAG_END --></pre></div> <h3 class="relative group"><a id="swift-inference" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#swift-inference"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>推理</span></h3> <p data-svelte-h="svelte-hhu151">要运行推理，请克隆 Apple 的仓库：</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START -->git <span class="hljs-built_in">clone</span> https://github.com/apple/ml-stable-diffusion | |
| <span class="hljs-built_in">cd</span> ml-stable-diffusion<!-- HTML_TAG_END --></pre></div> <p data-svelte-h="svelte-1jxncar">然后使用 Apple 的命令行工具，<a href="https://www.swift.org/package-manager/#" rel="nofollow">Swift Package Manager</a>：</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg class="" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg> <div class="absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0"><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent; "></div> Copied</div></button></div> <pre class=""><!-- HTML_TAG_START -->swift run StableDiffusionSample --resource-path models/coreml-stable-diffusion-v1-4_original_compiled --compute-units all <span class="hljs-string">"a photo of an astronaut riding a horse on mars"</span><!-- HTML_TAG_END --></pre></div> <p data-svelte-h="svelte-gbwvtm">您必须在 <code>--resource-path</code> 中指定上一步下载的检查点之一，请确保它包含扩展名为 <code>.mlmodelc</code> 的已编译 Core ML 包。<code>--compute-units</code> 必须是以下值之一：<code>all</code>、<code>cpuOnly</code>、<code>cpuAndGPU</code>、<code>cpuAndNeuralEngine</code>。</p> <p data-svelte-h="svelte-1bh9zl6">有关更多详细信息，请参考 <a href="https://github.com/apple/ml-stable-diffusion" rel="nofollow">Apple 仓库中的说明</a>。</p> <h2 class="relative group"><a id="支持的-diffusers-功能" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#支持的-diffusers-功能"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>支持的 Diffusers 功能</span></h2> <p data-svelte-h="svelte-bkm37e">Core ML 模型和推理代码不支持 🧨 Diffusers 的许多功能、选项和灵活性。以下是一些需要注意的限制：</p> <ul data-svelte-h="svelte-1fspwg1"><li>Core ML 模型仅适用于推理。它们不能用于训练或微调。</li> <li>只有两个调度器已移植到 Swift：Stable Diffusion 使用的默认调度器和我们从 <code>diffusers</code> 实现移植到 Swift 的 <code>DPMSolverMultistepScheduler</code>。我们推荐您使用 <code>DPMSolverMultistepScheduler</code>，因为它在约一半的步骤中产生相同的质量。</li> <li>负面提示、无分类器引导尺度和图像到图像任务在推理代码中可用。高级功能如深度引导、ControlNet 和潜在上采样器尚不可用。</li></ul> <p data-svelte-h="svelte-1e4jw66">Apple 的 <a href="https://github.com/apple/ml-stable-diffusion" rel="nofollow">转换和推理仓库</a> 和我们自己的 <a href="https://github.com/huggingface/swift-coreml-diffusers" rel="nofollow">swift-coreml-diffusers</a> 仓库旨在作为技术演示，以帮助其他开发者在此基础上构建。</p> <p data-svelte-h="svelte-aadz0w">如果您对任何缺失功能有强烈需求，请随时提交功能请求或更好的是，贡献一个 PR 🙂。</p> <h2 class="relative group"><a id="原生-diffusers-swift-应用" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#原生-diffusers-swift-应用"><span><svg class="" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg></span></a> <span>原生 Diffusers Swift 应用</span></h2> <p data-svelte-h="svelte-jjnlqd">一个简单的方法来在您自己的 Apple 硬件上运行 Stable Diffusion 是使用 <a href="https://github.com/huggingface/swift-coreml-diffusers" rel="nofollow">我们的开源 Swift 仓库</a>，它基于 <code>diffusers</code> 和 Apple 的转换和推理仓库。您可以研究代码，使用 <a href="https://developer.apple.com/xcode/" rel="nofollow">Xcode</a> 编译它，并根据您的需求进行适配。为了方便，<a href="https://apps.apple.com/app/diffusers/id1666309574" rel="nofollow">App Store 中还有一个独立 Mac 应用</a>，因此您无需处理代码或 IDE 即可使用它。如果您是开发者，并已确定 Core ML 是构建您的 Stable Diffusion 应用的最佳解决方案，那么您可以使用本指南的其余部分来开始您的项目。我们迫不及待想看看您会构建什么 🙂。</p> <a class="!text-gray-400 !no-underline text-sm flex items-center not-prose mt-4" href="https://github.com/huggingface/diffusers/blob/main/docs/source/zh/optimization/coreml.md" target="_blank"><svg class="mr-1" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M31,16l-7,7l-1.41-1.41L28.17,16l-5.58-5.59L24,9l7,7z"></path><path d="M1,16l7-7l1.41,1.41L3.83,16l5.58,5.59L8,23l-7-7z"></path><path d="M12.419,25.484L17.639,6.552l1.932,0.518L14.351,26.002z"></path></svg> <span data-svelte-h="svelte-zjs2n5"><span class="underline">Update</span> on GitHub</span></a> <p></p> | |
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