undefined | Better HN

0 pointsPunchyHamster3mo ago0 comments

It has been worked out. Just look at how big are ISS radiators and that they dissipate around 100kW then calculate cost of sending all that to space. And by that I mean it would be even more expensive that some of the estimates flying around

While personally I think it's another AI cash grab and he just wants to find some more customers for spacex, other thing is "you can't copyright infringe in space" so it might be perfect place to load that terabytes of stolen copyrighted material to train data sets, if some country suddenly decides corporation stealing copyright content is not okay any more

0 comments

pointlessone3mo ago

DGX H200 is 10,2 kW. So that like 10 of them. Or only 80 H200. Doesn’t sound like a big data center. More like a server room.

ISS radiators are huge 13.6x3.1 m. Each radiates 35 kW. So you need 3 of them to have your 100 kW target. They are also filled with gas that needs pumping so not exactly a passive system and as such can break down for a whole lot of reasons.

You also need to collect that power so you need about the same amount of power coming from solar panels. ISS solar array wings are 35x12 m and can generate about 31 kW of power. So we’ll need at least 3 of them. BTW each weighs a ton, a literal metric ton.

It hardly seems feasible. Huge infrastructure costs for small AI server rooms in space.

diabllicseagull3mo ago

if I may add, you can't really launch a station three times the size of ISS with a single rocket so there will be multiple launches. Just the launch costs alone could likely finance multiple similarly sized server rooms on land.

pointlessone3mo ago

It should be smaller than ISS. IIRC, ISS has three solar arrays and two radiators. DGX is about the size of a fridge. Let’s add two more fridges worth of infra for solar and radiator. Maybe another fridge for comms. But these three fridges replace all the modules of ISS. It’s still gonna be about 6 (maybe up to 10?) tons of mass to lift. But Starship can do 100-150 tons to LEO so might be doable.

shagie3mo ago

What is the power budget for that DGX. The power budget for ISS is 75–90 kW. If your DGX fridge needs more power, it will need similar capacity of solar and radiators.

https://www.goldmansachs.com/insights/articles/rising-power-...

> In 2027, the unified approach will almost certainly be taken to new levels as NVIDIA's “Kyber” system will launch, with 576 GPUs in a single rack requiring a whopping 600 kW, equivalent to delivering enough power for 500 US homes into the space of a filing cabinet.

That fridge needs 600 kW of power. That will require 6x more solar panel space than the ISS and 6x more radiators. It's not about the volume of the object but rather its power and heat budgets.

If that fridge can reject all of the heat from the rack in space, it will work much better on earth and all the data centers would be using that fridge instead of their cooling towers and AC.

1 more reply

CorrectHorseBat3mo ago

Maybe you can't copyright infringe in space, but it's still infringement when the result gets back to earth.

randyrand3mo ago

Keep the result in space, and use large telescopes to look at it!

RugnirViking3mo ago

the result is the result. If you look at it and use it for something, you have moved the result. Its not a physical object that exists in a place, its an idea. Hence IP. Intellectual property.

estearum3mo ago

Really depends on how good your lawyers are

whycome3mo ago

These major AI tools have already been trained on infringing works.

j / k navigate · click thread line to collapse

0 comments

pointlessone3mo ago

DGX H200 is 10,2 kW. So that like 10 of them. Or only 80 H200. Doesn’t sound like a big data center. More like a server room.

It hardly seems feasible. Huge infrastructure costs for small AI server rooms in space.

diabllicseagull3mo ago

pointlessone3mo ago

shagie3mo ago

What is the power budget for that DGX. The power budget for ISS is 75–90 kW. If your DGX fridge needs more power, it will need similar capacity of solar and radiators.

https://www.goldmansachs.com/insights/articles/rising-power-...

That fridge needs 600 kW of power. That will require 6x more solar panel space than the ISS and 6x more radiators. It's not about the volume of the object but rather its power and heat budgets.

If that fridge can reject all of the heat from the rack in space, it will work much better on earth and all the data centers would be using that fridge instead of their cooling towers and AC.

1 more reply

CorrectHorseBat3mo ago

Maybe you can't copyright infringe in space, but it's still infringement when the result gets back to earth.

randyrand3mo ago

Keep the result in space, and use large telescopes to look at it!

RugnirViking3mo ago

the result is the result. If you look at it and use it for something, you have moved the result. Its not a physical object that exists in a place, its an idea. Hence IP. Intellectual property.

estearum3mo ago

Really depends on how good your lawyers are

whycome3mo ago

These major AI tools have already been trained on infringing works.

j / k navigate · click thread line to collapse