validate_required_kv_kernels

metrale_model_layers::layers::qwen3_attention

Function validate_required_kv_kernels 

Source 
pub fn validate_required_kv_kernels(
    gpu: &dyn GpuBackend,
    kv_dtype: KvCacheDtype,
    head_dim: usize,
) -> Result<()>
Expand description

2026-09-25: Startup check for one --kv-cache-dtype: resolves every kernel the dtype’s dispatch needs (the reshape/decode pair, the chunked-prefill kernel and, for a WHT-rotated side, the WHT bookends) and errors with the full missing list. The server calls it before build_model. See kernel_requirements.rs.