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<article id="post-2024_cuda_atomic_add" class="h-entry article article-type-post" itemprop="blogPost" itemscope itemtype="https://schema.org/BlogPosting">
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<a class="p-name article-title" href="/2024/05/24/2024_cuda_atomic_add/">CUDA编程优化Float16精度的atomicAdd</a>
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<p>NLP中词嵌入（embedding）是非常重要的一环，embedding算子在反向计算时不同的线程会写入同一个结果，面对这类写冲突问题，高效的多线程计算必然要无锁化设计。而NVIDIA的加速卡本身支持了<code>atomicAdd</code>等原子计算。</p>
<p>当我们使用较低精度在一些训推任务中量化加速模型时（如：FP16精度），CUDA底层会调用诸如 <code>atomicAdd(half*, half)</code> 这类原子指令。但是当前的硬件对这条指令的支持不够好，所以我们需要借助一些内存对齐的技术以应用效率更高的 <code>atomicAdd(half2*, half2)</code> 指令。本文重点讲述如何利用软件来弥补硬件的缺陷这样的实例。</p>
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<a class="p-name article-title" href="/2024/01/02/2024_Smart_IR_Eng/">Introducing 'Smart Intermediate Representation' -- An Open Sourced Compiler Framework for Smart Contract</a>
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<h2 id="Background"><a href="#Background" class="headerlink" title="Background"></a>Background</h2><p>Smart Intermediate Representation (hereinafter referred to as SIR) is a smart contract compiler framework independently developed by Ant Group. Paired with high-performance runtime, it is applied to the WASM ecosystem. On a mission of compiling multi-target and multi-scenario smart contracts more securely and reliablely, it is committed to providing a computing engine driven by IR, both on and off the chain.</p>
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<a class="p-name article-title" href="/2023/12/29/2023_Smart_IR/">Smart Intermediate Representation 编译框架</a>
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<p>Github Repo 地址：<a target="_blank" rel="noopener" href="https://github.com/AntChainOpenLabs/Smart-Intermediate-Representation">https://github.com/AntChainOpenLabs/Smart-Intermediate-Representation</a></p>
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<time class="dt-published" datetime="2022-06-21T12:53:47.000Z" itemprop="datePublished">2022-06-21</time>
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<a class="p-name article-title" href="/2022/06/21/2022_ERC721G/">世界上第一款防盗智能合约——ERC721G</a>
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<p>自NFT流通以来，出现过多起被盗事件。主要有私钥被盗、钓鱼攻击等主要表现形式，在现有的案例中一经被盗很难被追回。追回的案例也大都需要被盗人二次出价，成本极高。在此TurtleCase Gang提出一种通用的技术解决方案，以便可以适配任何ERC721标准的合约，帮助NFT持有者共同守护财产安全。</p>
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<a class="p-name article-title" href="/2022/06/01/2022_web3_stack/">工业级web3应用开发技术选型</a>
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<p>本文给出当下web3产品级应用的技术栈推荐，可供置身于去中心事业的科技从业人员参考。</p>
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<a href="/2022/05/31/2022_crypto/" class="article-date">
<time class="dt-published" datetime="2022-05-31T12:53:47.000Z" itemprop="datePublished">2022-05-31</time>
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<a class="p-name article-title" href="/2022/05/31/2022_crypto/">数字货币一日通——OpenZeppelin的ERC20</a>
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<p>本文尝试发行一款基于以太坊区块链的数字货币，在此之前你需要先熟悉<code>Solidity</code>这门合约语言，并拥有<code>Metamask</code>钱包和账户。</p>
<p>「本文仅做技术探讨，如有上主网需求，请遵循当地国家的法律法规，后果自负」</p>
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<article id="post-2022_NFT" class="h-entry article article-type-post" itemprop="blogPost" itemscope itemtype="https://schema.org/BlogPosting">
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<a href="/2022/05/28/2022_NFT/" class="article-date">
<time class="dt-published" datetime="2022-05-28T12:53:47.000Z" itemprop="datePublished">2022-05-28</time>
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<a class="p-name article-title" href="/2022/05/28/2022_NFT/">NFT一日通——Azuki的ERC721A</a>
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<p>本文尝试发行一款<code>NFT</code>，我们从合约出发而不是直接使用<a target="_blank" rel="noopener" href="https://opensea.io/">Opensea</a>来搞定定制化发布，在此之前你需要先熟悉<code>Solidity</code>这门合约语言，并拥有<code>Metamask</code>钱包和账户。</p>
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<article id="post-2022_DApp" class="h-entry article article-type-post" itemprop="blogPost" itemscope itemtype="https://schema.org/BlogPosting">
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<a href="/2022/05/23/2022_DApp/" class="article-date">
<time class="dt-published" datetime="2022-05-23T12:53:47.000Z" itemprop="datePublished">2022-05-23</time>
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<a class="p-name article-title" href="/2022/05/23/2022_DApp/">DApp一日通——web3.js、Truffle与Dfinity篇</a>
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<p>本文在<a href="">Truffle</a>框架的基础上给出一个可快速上手DApp的教程，并非工业化流程，其中对于真实的生产环境做了大量的精简，仅保留最关键的几个部分，对于初学者足以了解一个DApp的开发工作流程，但是对于工业级生产则远远不够。这里仅作为一个入门来一窥<code>DApp</code>的基本概念。</p>
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<article id="post-2022_solidity" class="h-entry article article-type-post" itemprop="blogPost" itemscope itemtype="https://schema.org/BlogPosting">
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<a href="/2022/05/15/2022_solidity/" class="article-date">
<time class="dt-published" datetime="2022-05-15T12:53:47.000Z" itemprop="datePublished">2022-05-15</time>
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<a class="p-name article-title" href="/2022/05/15/2022_solidity/">智能合约一日通——Solidity篇</a>
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<p>比特币是中本聪（未必是个体，可能是一群人，人人都可能是中本聪）送给全世界的礼物，在过去的历史经验中，我们看到了其叹为观止的金融属性，但是作为一种创新我们除了看到其金融性质外，还有很多熟悉的事物值得被重新定义，从而探索出新的价值。就比如说：信任和验证。这也带来了在区块链上部署去中心可计算合约的可能性：Smart Contract。</p>
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<article id="post-2022_web1_web3" class="h-entry article article-type-post" itemprop="blogPost" itemscope itemtype="https://schema.org/BlogPosting">
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<a href="/2022/05/07/2022_web1_web3/" class="article-date">
<time class="dt-published" datetime="2022-05-07T12:53:47.000Z" itemprop="datePublished">2022-05-07</time>
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<a class="p-name article-title" href="/2022/05/07/2022_web1_web3/">从web 1.0到web 3.0</a>
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<p>最近很忙，难得偷闲写一篇文章。感叹世界的变化真的很快，转眼间<code>web 2.0</code>以某种意想不到的方式开始陨落了，在人类历史中还未曾有如此迅速之变局，想必第一次工业革命也是持续了百年之久的。回忆起自己小时候，小学四年级的暑假，11岁，用 Frontpage 2000 亦或是 2002/03 制作了人生中第一个网站<a target="_blank" rel="noopener" href="http://zy812.izhen.me/">神英启蒙网</a>(<a href="../../../../2018/09/20/firstsite/">全文</a>)，那是典型的<code>web 1.0</code>时代的产物，<em>只读</em>。快20年了，现在已经处于web2到web3的大航海时代，是一种交割，也是一种新增量，未来必然是冒险家的乐园。</p>
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