pub const CORPUS_MAGNITUDE_CAP: i64 = 128;Expand description
The magnitude a corpus element is capped at.
★ 128 BECAUSE BF16 IS THE NARROWEST OPERAND PRECISION THE TARGETS USE, and bf16 holds every integer up
to 256 exactly. A corpus inside that window can never manufacture an operand rounding difference the
workload did not already have, so a divergence it finds is a divergence of the REWRITE rather than of
the datapath. The caller keeps the other half of that bargain by not asking for a reduction so long
that the fp32 accumulator itself starts rounding (K · 128² < 2²⁴).