pub fn next_step(
slot: &Slot,
share: &Share,
cx: &Context,
rate_now: f64,
) -> Option<(u32, f64)>Expand description
The next faster build of slot with more LUTs and everything else as
in share: (extra LUTs, its capacity), probing in 1k steps up to 64k.
Builds come in whole blocks (a field machine is ~11k LUTs), so a rate
that stays flat while LUTs grow is waiting for this step.