Equation 9 · Part 1 · Serving a Frontier Model: The KV Cache, Batching, and What a Token Actually Costs
Symbol N
What this part means
N 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
N 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 N→Article meaning
The passage around this formula
Now count the work. Generating a single token for a single request performs roughly 2N floating-point operations for N parameters, while requiring that all N parameters plus the request’s cache be read from memory. The arithmetic intensity — operations per byte moved — is therefore close to one, which is one to two orders of magnitude below the ratio at which modern accelerators become compute bound. The hardware…
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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.
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Sources cited in the surrounding passage
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