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Comment Re:Communists (Score 1) 29

Don't worry, greytree. I understood that this is heavily ironic. Sorry you're getting the clueless responses.

With all the subtlety of a SJW or alt-right youtuber. Clueless-in, clueless out.

Lets start by acknowledging that Facebook is evil (despite cool stuff like pytorch and llama).
New Mexico has only 2 million people, and $25B is more than enough to pay all their debts and unfunded liabilities. Brilliant move!
  But extrapolation $25B on a per capita basis to other states applying similar taxes and you get a total of four trillion dollars [evil laugh] . Is that sustainable?

Even Meta does not have that much, so they'd better get in quick.
Q: Why on Earth is the US still using juries for civil cases, when it is clearly stupid? is this related to pennies and the customary units?

Comment Re:Communications overhead? (Score 3, Informative) 20

My intuition says that the network linking the two machines would be a bottleneck, but I don't know if that's a minor performance problem or a major one.

RAM bandwidth is the bottleneck, so one machine would actually be slower.

Apple Machine Learning Research published the following decode speeds for the NVFP4 checkpoint at an 8,192-token context (generating 128 tokens):
- Two Mac Studios, pipeline parallelism: 15.74 tokens/s
- Two Mac Studios, tensor parallelism: 24.99 tokens/s
- Four Mac Studios, tensor parallelism: 36.73 tokens/s

Mac unified memory is still slow compared to a NVidia GPU, but the MoE design makes it possible to run a large model.
The 1TB mac cluster is the price of a Tesla, while the NVidia rack will set you back the price of a Ferrari.

Comment This will revolutionize igloo construction (Score 4, Funny) 57

but anyone who has ever fallen on their butt on an ice rink will know that ice is hard.

Maybe this will be useful on Mars? Article is not clear why this story is significant outside of its niche. We don't normally get obscure materials science papers here.

Comment Re: If they are thermally efficient enough (Score 1) 129

A good rule of thumb is 3m^2 of radiative area per kW,

Where did you get that from?
According to Stefan-Boltzmann , power is proportional to the 4th power of temperature, so temp matters very much. Even at 50C, you get 550W/m^2 radiation per side. That leaves a big margin for temp gradient from panel to GPU core. So I assume you numbers must be single sided, and based on a lower temperature?

Even so, that is less than the area of solar panels needed to generate the power. Total mass works out slightly more. The economics of space-based AI servers compared to earthly is dubious, especially as battery storage continues to drop in price.
    But why are some people focussing on claiming some fundamental physics limit in cooling? Aside from the usual /. motive of wanting to sound smart, as far as I can tell they seem to be motivated by an emotional reaction to a person whose politics does not align with theirs. Tribalism can make people blind.

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