Customize Consent Preferences

We use cookies to help you navigate efficiently and perform certain functions. You will find detailed information about all cookies under each consent category below.

The cookies that are categorized as "Necessary" are stored on your browser as they are essential for enabling the basic functionalities of the site. ... 

Always Active

Necessary cookies are required to enable the basic features of this site, such as providing secure log-in or adjusting your consent preferences. These cookies do not store any personally identifiable data.

No cookies to display.

Functional cookies help perform certain functionalities like sharing the content of the website on social media platforms, collecting feedback, and other third-party features.

No cookies to display.

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics such as the number of visitors, bounce rate, traffic source, etc.

No cookies to display.

Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.

No cookies to display.

Advertisement cookies are used to provide visitors with customized advertisements based on the pages you visited previously and to analyze the effectiveness of the ad campaigns.

No cookies to display.

上海宝山炮台湿地公园的蓝天白云上海宝山炮台湿地公园的蓝天白云
0

基于您提供的信息,以下是关于“Kimi 背后的长文本大模型推理实践:以 KVCache 为中心的分离式推理架构”的整理和概括:

标题:Kimi背后的长文本大模型推理实践:以 KVCache 为中心的分离式推理架构

作者:蔡芳芳,编辑;唐飞虎,演讲嘉宾

日期:2024-09-20

概述:
在AICon全球人工智能开发与应用大会上,唐飞虎分享了月之暗面公司的高级研发团队如何在Kimi智能助手背后实现长文本大模型的推理加速。Kimi智能助手在多个平台上广泛应用,其推理团队通过技术创新显著改善了用户体验,尤其是在处理长文本时。

内容要点:

  1. 长文本推理的瓶颈

    • 成本高:大型模型的无状态设计导致每次调用都需要传递整个上下文,增加了计算成本。
    • 速度慢:Transformer模型在计算Attention机制时,没有缓存的情况下计算复杂度呈平方级增长。
  2. 贵且慢的原因

    • Transformer模型在没有使用缓存的情况下,每次计算Attention都需要完整的矩阵乘法。
    • KVCache机制的引入使得计算长度只需线性增加,显著提升了性能。
  3. 长文本推理的优化

    • 采用了Flash Attention、vLLM、MOE和Speculative Decoding等优化技术。
    • Mooncake项目通过集群调度优化,与上述策略正交,可组合使用。
  4. Mooncake的实践

    • Mooncake将模型推理分为预填充阶段和解码阶段。
    • 预填充阶段可以进行高度并行化的矩阵操作,提高GPU利用率。
    • 解码阶段受内存传输速度限制,影响每个输出Token的时间。
  5. Mooncake的基本思想

    • 将模型推理的两个优化阶段分开处理,以实现更高效的推理性能。

结论:
Mooncake项目通过创新的分离式推理架构,有效解决了长文本大模型推理中的性能瓶颈问题,为开发者提供了优化AI应用的上下文缓存功能,从而提升了用户体验。

更多详细信息,包括Mooncake方案的具体实现和优化细节,可以在即将召开的QCon上海站上进一步了解,或者访问大会官网获取更多信息。


>>> Read more <<<

Views: 0

0

发表回复

您的邮箱地址不会被公开。 必填项已用 * 标注