How can I enable PagedAttention for Llama-3-8B in vLLM?

[Blueblack319]

I’m running the Llama-3-8B model in vLLM and checked the nsys report. According to the report, neither paged_attention_v1_kernel nor paged_attention_v2_kernel was launched. I verified this by inspecting which attention backend is used in the get_attn_backend() function, where I found that is_blocksparse is always set to false. How can I enable PagedAttention for the Llama-3-8B model?