REDUCE_ATTN_BAR

Constant REDUCE_ATTN_BAR 

Source
pub const REDUCE_ATTN_BAR: usize = 17;
Expand description

2026-09-25: A 2-byte all-reduce issued just before the real one while profiling (Glm5NextLayer::reduce_probe), so that the ranks’ arrival skew is charged here and not to REDUCE_ATTN or REDUCE_MLP.