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accelerator-selection

Compare computing devices for a defined AI model workload using memory capacity, computing speed, data transfer, energy use, and cost. Build a comparison that separates predicted performance from measurements and identifies the constraints that determine the choice.

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

为给定模型负载比较加速器的容量、有效计算、内存带宽、功耗与成本。用于硬件选型或解释标称峰值与实测差异。

查看安装方法

适用场景

  • Choosing hardware for a specific AI model
  • Checking whether a model fits in device memory
  • Explaining gaps between advertised and measured performance
  • Comparing energy use and cost per completed task

包含的文件(1)

  • SKILL.md1.2 KB

SKILL.md(原文)

安装前可以查看交给 AI 代理的指令内容。

加速器选型

适用:模型与负载已明确,需要判断哪类设备能在期限和预算内完成任务。依据 manuscripts/04-加速器架构.md 第 4.1—4.8 节。

  1. 用模型的权重、KV、激活及工作区过滤容量不可行的候选,并注明精度与显存保留量。
  2. 对每个候选分别计算计算下界、各级存储搬移下界、主机与加速器传输开销;结合矩阵形状与精度说明标称算力是否可达到。
  3. 记录可持续功率、能耗与设备价格。吞吐、单请求延迟、每合格任务成本是不同目标,不用单一 FLOPS/$ 排名替代。
  4. 用相同模型、输入、批量与测试边界测量 kernel 和完整任务;观察内存访问计数、实际带宽、利用率和降频。将预测和实测差距分配到可解释的阶段。

给出“可行性 → 性能下界 → 实测 → 能耗/成本”的比较表,并指出决定选择的约束。没有同口径的实测时,结论标为预测;单卡选型之外的通信代价转用 parallelism-planning。

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