Symbol P_GPU
PU is part of the quantity the equation computes from the expression on the right.
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Why this formula appears here
The technical starting point is disclosed with unusual precision, because Nvidia had a marketing interest in disclosing it. In an October 2024 press release, Nvidia stated that Colossus connected up to 100,000 liquid-cooled H100 GPUs on a single RDMA fabric using its Spectrum-X Ethernet platform, built in 122 days from the first rack’s arrival, with only 19 days between first rack and the start of training, and quoted Musk calling it “the most powerful training system in the world” [ 4 ] . Nvidia’s own current H100 product page lists the SXM variant’s thermal design power at up to 700 watts, configurable [ 5 ] . That is enough to write a first, deliberately narrow equation — the power draw…
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Symbol N_GPU
PU is one factor in the product that computes the quantity on the left.
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Read it with the definitions, units, and assumptions supplied by the article.
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Published contexts (1)
A symbol can carry a different meaning in another article. Each occurrence keeps its own guide and term definitions.
Equation 1 · AI Industry
The Real Resource Footprint of Building Colossus
This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.
The technical starting point is disclosed with unusual precision, because Nvidia had a marketing interest in disclosing it. In an October 2024 press release, Nvidia stated that Colossus connected up to 100,000 liquid-cooled H100 GPUs on a single RDMA fabric using its Spectrum-X Ethernet platform, built in 122 days from the first rack’s arrival, with only 19 days between first rack and the start of training, and quoted Musk calling it “the most powerful training system in the world” [ 4 ] . Nvidia’s own current H100 product page lists the SXM variant’s thermal design power at up to 700 watts, configurable [ 5 ] . That is enough to write a first, deliberately narrow equation — the power draw…
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