Issues

• SimAI_analytical hangs / becomes extremely slow for tp=2 configs

  aliyun/SimAI#300 · Filter by author habby1012 opened on Aug 22, 2026
  3

  

• SimCCL代码

  aliyun/SimAI#299 · Filter by author xindeworld opened on Aug 7, 2026
  1

• TP=1,EP>1时仿真失败

  aliyun/SimAI#298 · Filter by author GeofferyGeng opened on Aug 4, 2026
  7

  

• [Feature] Sweep P/D deployment and network dimensions in Vidur config optimizer

  aliyun/SimAI#296 · Filter by author catyans opened on Jul 23, 2026
  

• Very long ns-3 simulation runtime for 64-GPU Megatron/MoE workload, looking for recommended acceleration settings

  aliyun/SimAI#293 · Filter by author Zyangzzz opened on Jun 30, 2026
  4

• AICB Workload generator

  aliyun/SimAI#292 · Filter by author nahemot opened on Jun 19, 2026
  8

• pfc触发段错误

  aliyun/SimAI#286 · Filter by author xyh522 opened on Jun 12, 2026
  3

• 是否支持无实体卡时workload的生成

  aliyun/SimAI#285 · Filter by author oyrtH opened on Jun 12, 2026
  3

• Documentation and simulation output

  aliyun/SimAI#284 · Filter by author nahemot opened on Jun 2, 2026
  4

• 未来能支持细粒度PP吗

  aliyun/SimAI#283 · Filter by author li-yr opened on Jun 1, 2026
  3

• 多个模型同时训练问题

  aliyun/SimAI#282 · Filter by author zzy999-win opened on May 28, 2026
  3

• 使用simai 模拟物理发包，有概率卡主 或 挂死

  aliyun/SimAI#281 · Filter by author zxfszane opened on May 25, 2026
  3

• 使用simai 模拟物理发包，但是没有办法running起来，一直显示打开设备失败

  aliyun/SimAI#280 · Filter by author Tupperis opened on May 25, 2026
  8

• Urgent: Implement Promised Spelling Fix

  aliyun/SimAI#276 · Filter by author manato-tajiri opened on May 5, 2026
  1

• The file ncclFlowModel_detailed_.csv is empty

  aliyun/SimAI#275 · Filter by author zzy999-win opened on Apr 29, 2026
  3

• workload 与 astra-sim 的适配器求助

  aliyun/SimAI#272 · Filter by author gongxinyue opened on Apr 21, 2026
  4

• aicb生成的txt文件问题

  aliyun/SimAI#271 · Filter by author zzy999-win opened on Apr 20, 2026
  4

• aicb/workload/aiob_inputs/Example.txt案例时间单位

  aliyun/SimAI#269 · Filter by author zzy999-win opened on Apr 20, 2026
  4

• 运行vidur时，采用“backend=aicb” 导致 attention 耗时路径读取缺失的 attn_kv_cache_save_* 字段并触发 KeyError

  aliyun/SimAI#266 · Filter by author itterpiad opened on Apr 11, 2026
  1

• SimAI_simulator不输出结果，bug修复求助

  aliyun/SimAI#264 · Filter by author hpc-lee opened on Apr 10, 2026
  1

• aicb生成工作负载问题

  aliyun/SimAI#263 · Filter by author wtl0000 opened on Apr 9, 2026
  4

• DeepSeek推理仿真问题

  aliyun/SimAI#262 · Filter by author BGPonlooker opened on Apr 1, 2026
  1

• 网络后端替换

  aliyun/SimAI#261 · Filter by author gongxinyue opened on Apr 1, 2026
  4

• Spectrum-X 拓扑生成的疑问

  aliyun/SimAI#260 · Filter by author gongxinyue opened on Apr 1, 2026
  4

• 有用vidur运行推理的demo示例么

  aliyun/SimAI#259 · Filter by author z08053520 opened on Mar 31, 2026
  1