3 ms·
Yeah, GPUs actually helped with this a lot when they first came out because suddenly to get the great performance you had to drop to single precision, at least
by physicsguy 2y ago
Yeah, GPUs actually helped with this a lot when they first came out because suddenly to get the great performance you had to drop to single precision, at least until 2018 or so (can’t remember exactly now, but it used to be the case that the older cards were 2x as slow at DP)
- bee_rider 2y agoI don’t really do GPU stuff, but I expect double to be at least 1/2 as slow as single, even on good hardware. I mean it is twice as many bits. (Maybe you think in bits/second, though, which is totally fair). I looked up my consumer card on a whim (playing with sprinkling some GPGPU into my code—cupy is actually really easy to use and ergonomic!), and apparently doubles are 1/32 as fast as singles. Yikes!