pub fn prefill_us(
c: &Circuit,
settings: &BTreeMap<String, String>,
roofline_of: &dyn Fn(NodeIdx) -> Roofline,
tokens: u64,
) -> Result<f64, CostError>Expand description
2026-09-30: The estimated prefill time of tokens tokens, microseconds, each node costed
with roofline_of its index.