virtuallynathan

8 ms·

31.
by virtuallynathan 3y ago
The live video encode use-case seems like one that makes sense, and likely requires more bandwidth than TB4 can support.
32.
by virtuallynathan 3y ago
It has 8 x DDR4 3200, so about 204GB/s of memory bandwidth, 1/4th of the M2 Ultra.
33.
by virtuallynathan 3y ago
FWIW, I believe it’s 900GB/s full duplex, so 450GB/s each way. Still a ton!
34.
by virtuallynathan 3y ago
I would guess about $100m and ~1.5-2MW
35.
by virtuallynathan 3y ago
3.5? 4? Is your prompt detailed enough?
36.
by virtuallynathan 3y ago
This maps coverage is not accurate.
37.
by virtuallynathan 3y ago
It's only launched in a few African countries, see starlink.com/map
38.
by virtuallynathan 3y ago
I really like Mike's version. If anyone has perf tips, I'm happy to pass them on. It's a little out dated, we have a big update coming in the near future to add support for E-Band simulation, etc.
39.
by virtuallynathan 4y ago
Grace can be paired with Hopper via a 900GB/s NVLINK bus (500GB/s memory bandwidth), 1TB of LPDDR5 on the CPU and 80-94GB of HBM3 on the GPU.
40.
by virtuallynathan 4y ago
Actual source: https://planet4589.org/space/con/star/sg76.jpg
41.
by virtuallynathan 4y ago
Waist to height ratio is probably a better measure, nearly as easy.
42.
by virtuallynathan 4y ago
They published a whole document on it, V2 sats are designed to be less reflective than v1.x
43.
Starlink V2 Mini Satellites with 4x the bandwidth, E-Band, and Argon thrusters(twitter.com)
42 points by virtuallynathan 4y ago|31 comments
44.
by virtuallynathan 4y ago
Might take about 10 minutes to migrate your mouse from one corner to the other!
45.
by virtuallynathan 4y ago
How else would it be transported? Rail seems like a safe/efficient way of doing so.
46.
by virtuallynathan 4y ago
Wouldn’t you then just put more servers in and use the same 32MW footprint?
47.
by virtuallynathan 4y ago
Probably anti-inflammatory action: https://www.sciencedirect.com/science/article/abs/pii/S01650...
48.
by virtuallynathan 4y ago
Power availability?
49.
by virtuallynathan 4y ago
I bought a house out in the middle of nowhere in part for the dark sky. It's awesome to walk outside and see so much. Per this data, my house is at 19.9 μcd/m2, and if I drive/hike a few miles down the road, I can get to <
50.
by virtuallynathan 4y ago
Semantics, I guess -- If you pick one at random, you've got a 15-25% chance of it being pure avocado/olive oil. Sure, you can get real stuff if you know what you are looking for.
51.
by virtuallynathan 4y ago
Heh, I bought y2038.io and epochalypse.tech for my retirement gig.
52.
by virtuallynathan 4y ago
Be aware that almost all US Olive/Avocado Oil is adulterated with other seed oils. Estimates are 75%+
53.
by virtuallynathan 4y ago
Salad dressing, it's like 50% soybean oil.
54.
by virtuallynathan 4y ago
I'm on call for the Netflix CDN, but luckily no one touches anything, so the number of incidents is super low.
55.
by virtuallynathan 4y ago
FWIW, this whole thing is a bit confusing -- there's the Gen2 constellation and the V2.0 satellite. The V2.0 satellite is huge, ~6.4x2.7m with 2 solar arrays totaling 257m^2. Elon has said it will deliver close to an order of magnitude
56.
by virtuallynathan 4y ago
The biggest loser here seems to business users, who, for $500/mo get 1TB of data prioritized over nearly everyone, but then are capped to 1Mbps up/down until they pay $1/GB for more priority data! Even worse for maritime user
57.
by virtuallynathan 4y ago
Back of the Napkin Zen4 / Genoa gets you to ~500GB/s PCIe and ~500GB/s of DRAM bandwidth -- nearly 4Tbps! Zen3/Rome is ~300GB/s PCIe and ~300GB/s DRAM -- about 2.4Tbps. A single 2U box with Genoa might scale to
58.
by virtuallynathan 4y ago
It works with such high efficiency because we know how to place content in advance, and the catalog is relatively small. Trying to serve 800Gbps of YouTube content would be a nightmare.
59.
by virtuallynathan 4y ago
Yea, this is a terrible way of calculating this. I would like to see it done based on capacity (which sadly isn't public for part-ownership).
60.
by virtuallynathan 4y ago
They are already selling "middle-mile" fiber in the US... https://www.networkworld.com/article/3359239/facebook-gets-i...

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