3 ms·
They don't need to be space grade, consumer hardware will do just fine. For AI a random bit flip doesn't matter much.
by pantalaimon 8mo ago
They don't need to be space grade, consumer hardware will do just fine.
For AI a random bit flip doesn't matter much.
- ohyoutravel 8mo agoRandom bit flips might even improve output.
- adastra22 8mo agoSingle upset events in a modern GPU are not bitflips. They destroy the surrounding circuitry and usually disable the whole unit.
- pantalaimon 8mo agoIf that happens you disable that CUDA core. If you GPU is too damaged, you deorbit the satellite.
- adastra22 8mo agoYeas, and this will happen within weeks of launch with the orbits under consideration.
- q3k 8mo agoOnly 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.
- gbriel 8mo agoAs 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?