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1. moomoo+(OP)[view] [source] 2026-02-02 22:17:11
They'll just be decommissioned and burn up in space. nVidia will make space-grade GPUs on a 2-3 year cycle.
replies(2): >>pantal+l >>adastr+k6
2. pantal+l[view] [source] 2026-02-02 22:18:45
>>moomoo+(OP)
They don't need to be space grade, consumer hardware will do just fine.

For AI a random bit flip doesn't matter much.

replies(3): >>ohyout+v2 >>q3k+S2 >>gbriel+P4
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3. ohyout+v2[view] [source] [discussion] 2026-02-02 22:26:35
>>pantal+l
Random bit flips might even improve output.
replies(1): >>adastr+u6
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4. q3k+S2[view] [source] [discussion] 2026-02-02 22:28:01
>>pantal+l
Only if that bitflip happens somewhere in your actual data, vs. some GPU pipeline register that then locks up the entire system until a power cycle. Or causes a wrong address to be fetched. Or causes other nasty silent errors. Or...

Try doing fault injection on a chip some time. You'll see it's significantly easier to cause a crash / reset / hang than to just flip data bits.

'rad-triggered bit flips don't matter with AI' is a lie spoken by people who have obviously never done any digital design in their life.

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5. gbriel+P4[view] [source] [discussion] 2026-02-02 22:34:05
>>pantal+l
As long as they stay below Van Allen belts and deal with weaker magnetic shielding in sun synchronous orbit (high latitudes).

I would say they probably something a little beefier than consumer hardware and just deal with lots of failures and bit flips.

But cooling is a bigger issue probably?

6. adastr+k6[view] [source] 2026-02-02 22:38:16
>>moomoo+(OP)
You do realize that “space-grade” involves process changes that intrinsically incur orders of magnitude efficiency losses? Larger process sizes, worse performing materials. It’s not just a design thing you can throw money at.
replies(1): >>moomoo+BX
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7. adastr+u6[view] [source] [discussion] 2026-02-02 22:39:29
>>ohyout+v2
Single upset events in a modern GPU are not bitflips. They destroy the surrounding circuitry and usually disable the whole unit.
replies(1): >>pantal+69
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8. pantal+69[view] [source] [discussion] 2026-02-02 22:49:46
>>adastr+u6
If that happens you disable that CUDA core. If you GPU is too damaged, you deorbit the satellite.
replies(1): >>adastr+La
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9. adastr+La[view] [source] [discussion] 2026-02-02 22:55:03
>>pantal+69
Yeas, and this will happen within weeks of launch with the orbits under consideration.
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10. moomoo+BX[view] [source] [discussion] 2026-02-03 04:00:03
>>adastr+k6
Pre-requisites:

Ketamine

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