Earlier quoted context omitted.
> but the timing for an individual single-threaded computation hasn't really improved in the last 15 years The clock speeds haven't really gone up anymore, but computations still got considerably faster. From an i7 2700k (2011) to an i7 13700k single core benchmark scores went up 131% https://cpu.userbenchmark.com/Compare/Intel-Core-i7-2700K-vs...
First, that's the kind of change we used to get in 2 years. Having it happen over a decade is barely noticeable compared to where we used to be. Second, over that time period we've had a lot of changes in tooling. Some make code faster. Most make code slower. (Examples include the spread of containerization, and adoption of slow languages like Python.) The result is that programs to do equivalent things might wind up…
Ask HN: Is Moore's Law over, or not?
91–94 of 94 posts
Re: Ask HN: Is Moore's Law over, or not?
#92Earlier quoted context omitted.
> Writing amazing programs taking full advantage of the core count increase is simply impossible (see Amdahl's law) I don't see this as true at all, using Wikipedias example - "a program needs 20 hours to complete using a single thread, but a one-hour portion of the program cannot be parallelized, therefore only the remaining 19 hours execution time can be parallelized, then regardless of how many threads the minimum…
>Just increase "19 hours" to "400 hours" execution time, it's possible to increase output as far as you want. Yeah, sure. Just give up on the thing you wanted to do and instead do something entirely different that is more parallelizable. That'll keep your CPU utilization high, but it won't actually accomplish your goal (presuming you were using software for some purpose other than maximizing CPU utilization).
Re: Ask HN: Is Moore's Law over, or not?
#93Earlier quoted context omitted.
They might be putting themselves in a similar position as Intel though (maybe worse since I don’t recall Intel ever being as greedy..) if their competitors eventually catch up. Unlike in gaming in the data center initial cost + performance per watt are the only thing that really matter (besides software, Nvidia has a huge moat there..). And in relation to how much Nvidia is charging per GPU total power costs are clos…
> Unlike in gaming in the data center initial cost + performance per watt are the only thing that really matter That's not true from a hardware perspective either. You can't just plug in 4 worse cards in the same rack. The savings on the graphics cards become less significant if you need to double/quadruple all other hardware to increase the number of racks. A 1U blade can easily cost $10000 without a graphics card.
Re: Ask HN: Is Moore's Law over, or not?
#94Earlier quoted context omitted.
A law is something which is observed to be true. We're not talking about a legal law/rule that's enforced. In that sense it's one and the same.
A law of physics or nature, is something that HAS to be that way, and could not be different.