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distributed-inference

Compare ways to distribute AI inference across multiple instances, including replicas and separate input-processing and generation stages. Estimate capacity, throughput, delays, state-transfer costs, and recovery overhead to support routing and scaling decisions.

中文简介正在准备中。当前显示英语简介。

原文查看原文说明

比较推理副本、prefill/decode 分离、专家放置与共享 KV 的跨实例方案。用于容量规划、路由、扩缩容和故障恢复。

查看安装方法

适用场景

  • Compare replicas with separate inference stages
  • Plan routing around compute capacity and cached state
  • Evaluate expert placement and load imbalance
  • Estimate scaling and failure recovery overhead

包含的文件(1)

  • SKILL.md1.3 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

分布式推理部署

适用:单实例配置已知,需把计算和状态分配到多个实例。依据 manuscripts/09-分布式推理.md 第 9.1—9.7 节。

  1. 用相同任务质量、请求分布与资源总量比较完整副本、PD 分离、异构执行等候选;先列出每阶段的服务率与状态驻留量。
  2. 对每次切分,计算交接的 KV 或激活字节、链路传输时间、发送端与接收端同时占用的容量,以及可能与计算重叠的部分。状态表示改变后重新计算,不能沿用旧模型的 KV 大小。
  3. 路由同时考虑空闲算力和缓存亲和性。专家放置要考虑热点 skew、复制容量与最慢专家,不只看平均 token 数。
  4. 在启动、扩容和故障恢复中列出模型加载、预热、状态迁移、checkpoint 或重算的时间;评估流式输出中断后的用户可见影响。
  5. 用容量、吞吐、尾延迟和恢复后的按期完成率比较方案,并指出负载发生何种变化时需要重新部署。

报告资源配比、阶段服务率、链路瓶颈及状态交接成本。只有局部 kernel 指标时,先取得完整请求轨迹再做部署结论。

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