Recent comments in /f/technology

Snopes1 t1_jadppva wrote

People also forget that a lot of that % is sort of a misnomer.

A huge chunk of it comes from hydro projects, which have existed in the Pacific Northwest, Sun Belt, Tennessee Valley, and New England/Quebec region for more than a generation.

If you subtract those long standing projects from the calculation, I would guess the number of modern projects accounts for closer to 10% of current generation.

0

nerd4code t1_jadp1rf wrote

Well at least they won’t drone-bomb citizens, and I’m sure our top legal minds have firmly rejected the possibility!

What’s that? Both Obama and Trump killed citizens abroad sans trial (in absentia or otherwise), and Eric Holder refusing to rule out the idea is as much public debate as the notion got? Well at least we aren’t just recycling the same political whores who’ve been active in the government since the Nixon era, and the problem should fix itself.

2

nerd4code t1_jado5gs wrote

GPUs are in general way beyond overkill for NNs, which is what you’re talking about. NNs can use the massive data-parallelism and linear-algebraic trickery offered by GPUs, but the data format you use tends to hit a sweet spot right around 8-bit floating-point, and video cards tend to focus on 16+-bit, us. with the ability to do 32-/64-bit f.p. and 32-/64-bit integers also—units and busses for which will at the very least eat power. Newer NVidia cards do have TPUs attached so they can do 8-bit stuff without un- & re-packing, but that’s a comparatively tiny afterthought to the card’s design, and atl afaihs the TPU is usually shared between pairs of thread-XUs.

What you’d really want is to focus on, say, 32-bit integer add/sub/deref and 8-bit f.p. MACs in their own, non-shared units/lanes, and any special accel you can do for convolution will help some also. Which is why TPUs as a standalone thing exist.

2