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Original file line number Diff line number Diff line change
Expand Up @@ -699,7 +699,7 @@ vLLM allows combining multiple strategies to efficiently distribute models acros
1. `--pipeline-parallel-size 2 --enable-expert-parallel` → EP **does NOT activate** (TP=1, DP=1 per stage)
2. `--pipeline-parallel-size 2 --tensor-parallel-size 4 --enable-expert-parallel` → EP activates (TP=4 per stage)

2. **PP \+ EP requires AITER (Advanced Inter-node Tensor-parallelism Engine Runtime)**
2. **PP \+ EP requires AITER**
1. AITER provides stability for complex communication patterns with PP
2. Enable with: `VLLM_ROCM_USE_AITER=1`
3. Without AITER: May experience instability or failures with large MoE models
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