Equation 17 · Part 1 · The Physical Plant: Power, Cooling, and Networks in an AI Datacenter
Symbol B
What this part means
B is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Its job in the formula
B is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol B→Article meaning
The passage around this formula
The cost structure of a collective is arithmetic, not policy. For a ring AllReduce over p ranks reducing N bytes at per-link bandwidth B with per-hop latency , each rank moves
Learn the underlying idea
A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
Open the illustrated variables: a letter stands for a value guide →
See this notation across published equations →
Sources cited in the article section
These citations provide research context; check each source for the exact claim it supports.