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"Tinyboxes finally have a buy it now button"

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Re: "Tinyboxes finally have a buy it now button"

#111

Post by amluto »

oasisbob wrote: post #97
bombela wrote: post #59

Earlier quoted context omitted.

You can feed a US outlet the split phase 240V and get two 120V@20A each. It used to be done in kitchens in the US, back when appliances were power hungry. I have done so in my workshop for the same reason. Houses are wired in split phase 240V, with the neutral in the middle. That is, you have two opposite 120V phases, around the same neutral. This is a clever way to double the power, while adding a single wire. In th…

GFCI requirements will interfere with the legality of many modern-day multi-wire branch circuit plans, yeah?

You can get a two-pole GFCI breaker for this purpose. The prices are a bit silly.

Re: "Tinyboxes finally have a buy it now button"

#112

Post by amluto »

bombela wrote: post #59
michaelt wrote: post #54

Earlier quoted context omitted.

Most likely what they actually mean is: This server has two IEC C20 connectors, rated for ~16 amps, each feeding a PSU rated for 1600W (i.e. 16A @ 100v) If you're plugging in to 110v you shouldn't plug them both into the same outlet, as a 20A circuit can't supply 32A. As each PSU is rated for 1600W you'll have to plug both in to get 3200W even if you're running on 220v - although they'd only draw ~7.2A each in that c…

You can feed a US outlet the split phase 240V and get two 120V@20A each. It used to be done in kitchens in the US, back when appliances were power hungry. I have done so in my workshop for the same reason. Houses are wired in split phase 240V, with the neutral in the middle. That is, you have two opposite 120V phases, around the same neutral. This is a clever way to double the power, while adding a single wire. In th…

Skip the Y hack and do it in style, legally!

https://store.leviton.com/products/duplex-receptacle-outlet-...

Re: "Tinyboxes finally have a buy it now button"

#113

Post by bob1029 »

Arelius wrote: post #104
bob1029 wrote: post #66

I had a preorder in for this but I canceled a few weeks back. My experience trying to run machines this powerful in residential settings has been extremely poor. All of the Seasonic power supplies that go beyond 1kW or so will trip my shitty (i.e. probably defective) Siemens AFCI breakers. Not even the same circuit all the time. Even after violating local electrical code, I have found that living with a 1500w+ monste…

> All of the Seasonic power supplies that go beyond 1kW or so will trip my shitty (i.e. probably defective) Siemens AFCI breakers. In my experience, the Siemens AFCI just do that. I recommend switching them out for Eaton AFCI. That fixed all my nuisance tripping, especially from induction in other lines

I didn't realize Eaton had AFCI breakers listed for use with Siemens panels (or that they work better). I swapped it out for a non-AFCI Siemens, but if I can make it code compliant I'd much rather that.

Re: "Tinyboxes finally have a buy it now button"

#114

Post by andersa »

Hellolearning wrote: post #98
apexalpha wrote: post #35

Earlier quoted context omitted.

3200W seems perfect for a EU socket. Seperate breakers aren't really a thing here, at least in my country, usually if you need more power you draw 400V

No it doesn't. A standard EU Socket is not certified for 24/7 3.2kW. You should max. pull 2.7kW. For everything else you need a blue eu socket or camper socket. I learned this due to my EV which is able to be charged through a normal socket but it regulates it down due to this on purpose and has a temperature sensor build in as well.

So if it doesn't use 3.2kW continuously, but varies significantly based on what it's doing (perhaps even idle sometimes) then it's fine?

Re: "Tinyboxes finally have a buy it now button"

#115

Post by philistine »

teraflop wrote: post #49
WoahNoun wrote: post #41

Earlier quoted context omitted.

Most US homes have at least one 220v split phase line for major appliances like stoves or AC.

Yes, but most homes don't have extra 220v outlets except for the ones provided for the specific appliances that need them. So if you want to plug in a device like this "tinybox" at home, it's going to be a lot easier to find two separate 110v outlets on different circuits than to have a new 220v circuit added, or to unplug your stove every time you want to use it.

I don't know what adversarial relationship you have with electricians, but adding more 220v outlets is absolutely feasible. Usually takes an electrician a day of work.

Re: "Tinyboxes finally have a buy it now button"

#116

Post by ianburrell »

IWeldMelons wrote: post #58
hashhar wrote: post #39

Earlier quoted context omitted.

IIRC USA is 110V, not 220V?

220V is American version of what is known as 380V/400V elsewhere.

US three-phase power is mostly 208V, 240V, and 480V. The 208V is what normal residential 120/240V split-phase was made from. 240V is high-leg delta three phase and I think was old alternative to split-phase. 480V is used for light industrial that needs more power.

There is nothing in US power system that is 220V.

Re: "Tinyboxes finally have a buy it now button"

#117

Post by warkdarrior »

georgehotz wrote: post #89
anon389r58r58 wrote: post #69

Earlier quoted context omitted.

The networking of the tinybox is woefully inadequate. I.e. it only has an OCP 3.0 interface which is unoccupied. If you can fit everything onto one tinybox, then you'll be good, if you cannot, then you'd be better off by having a more professional workstation solution like e.g. NVIDIA RTX cards which have more memory.

That OCP 3.0 card has the same link bandwidth as the GPUs, so you can scale out without much loss of all-reduce bandwidth. In practice, for all models except the largest, the ~16GB/s all-reduce is totally fine. You just need to make sure you can all-reduce all weights in your training step time. Say you are training a 3B parameter model in BF16. That's 6GB of weights, as long as your step time is >=500ms you won't se…

> 3B parameter model

That's tiny. Can it train/fine-tune 70B models?

Re: "Tinyboxes finally have a buy it now button"

#118

Post by ajb »

robin_reala wrote: post #17
ajb wrote: post #10

Earlier quoted context omitted.

Social media sites are the collective equivalent of a "dollar auction"[1] In the dollar auction, each immediate choice isrational, but the overall process inevitably results in you losing value once you've decided to participate. But at each step, you lose more by quitting than by keeping going. Social media is the same, except that it's collective: if you want to keep in touch with certain people, you don't have a c…

> you don't have a choice other than to use the social media site they are using Hence federated social media. No one’s pretending the current implementations are perfect, but they’re far more interesting than the existing closed platforms.

They are, but I'm not sure what will cause a critical mass to switch. Short of the EU mandating that the existing platforms federate, which could be problematic.

Re: "Tinyboxes finally have a buy it now button"

#119

Post by Hellolearning »

andersa wrote: post #114
Hellolearning wrote: post #98

Earlier quoted context omitted.

No it doesn't. A standard EU Socket is not certified for 24/7 3.2kW. You should max. pull 2.7kW. For everything else you need a blue eu socket or camper socket. I learned this due to my EV which is able to be charged through a normal socket but it regulates it down due to this on purpose and has a temperature sensor build in as well.

So if it doesn't use 3.2kW continuously, but varies significantly based on what it's doing (perhaps even idle sometimes) then it's fine?

Yes. But you shouldn't risk it if you don't know. A ml job can run for hours or days

Re: "Tinyboxes finally have a buy it now button"

#120

Post by throawayonthe »

anon389r58r58 wrote: post #82
StrangeDoctor wrote: post #78

Earlier quoted context omitted.

I think the idea is you network them together if you need more and most models can be split nicely.

For that you'd probably be better off removing one of the GPUs, and replacing it with a networking card. The problem of the form factor will remain. The tinybox is 15U big for compute that you'd normally expect to find in a 4U form factor.

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