Cold_Miserable

12 ms·

31.
by Cold_Miserable 1y ago
Worst case scenario for random access is a multiple level TLB miss, a memory refresh cycle and then a system management mode interrupt all occurring consecutively.
32.
by Cold_Miserable 1y ago
From the "analysis" I gather it works by encrypting the .exe and the key's are server-side. The hardware info is used to further encrypt it. I think the goal should be to fool the checks rather than remove the encryption whic
33.
by Cold_Miserable 2y ago
The UK is a poor country with a money laundering capital tacked-on.
34.
by Cold_Miserable 2y ago
mov eax,64 lzcnt r8,rcx sub eax,r8d imul eax,1233 shr eax,12 Accurate to within 1.
35.
by Cold_Miserable 2y ago
Alderlake supports AVX512-FP16. Still only 9.6x faster than div. Most likely reciprocal is just too slow.
36.
by Cold_Miserable 2y ago
This is ~9.6x faster than "scalar". ASM_TestDiv proc ;rcx out, rdx A, r8 B mov rax,05555555555555555H kmovq k1,rax vmovdqu8 zmm0,zmmword ptr [rdx] vmovdqu8 zmm4,zmmword ptr [r8] vpbroadcastw zmm3,word ptr [FLOAT16_F8] vmovdqu8
37.
by Cold_Miserable 2y ago
Heh? Surely fast convert 8-bit int to 16-bit FP,rcp+mul/div is a no-brainer? edit make that fast convert,rcp,fma (float 16 constant 1.0) and xor (same constant)
38.
by Cold_Miserable 2y ago
How is the built-in Administrator account faster than a named account? I wonder if its a bloatware effect. They need to test with all bloatware removed. No control flow guard, defender, firewall, appearance to performance, no sounds, no bac
39.
by Cold_Miserable 2y ago
Indeed. Intel is trash right now. No AVX512 thus AMD is infinitely faster.
40.
by Cold_Miserable 2y ago
Does Zen 5 have cldemote or senduipi ?
41.
by Cold_Miserable 2y ago
250 is nonsense. 2xFMA per cycle @ ~4.5Ghz = 32*4.5 = ~144 Gflops Beating cuBlas is unlikely. You probably made a mistake. Last I tested it, it was even better than MKL in efficiency.
42.
by Cold_Miserable 2y ago
Its not possible to automate. Log is one example. You can't just use log(x) but log(x+1). There are other problems like the "zero problem" and its still possible to devise better approximations with other elementary operation
43.
by Cold_Miserable 2y ago
Intel makes money selling motherboard chipsets. There's no excuse, just greed.
44.
by Cold_Miserable 2y ago
Even a thicko can figure out this "research". You can't exercise your eyes to change their physical shape.
45.
by Cold_Miserable 2y ago
Biased article. 14nm was delayed and 10nm was delayed by 4 years.
46.
by Cold_Miserable 2y ago
??? The best action sci-fi ever made is a "goofy 80's movie".
47.
by Cold_Miserable 2y ago
TEC's are no good. The best bet is to bury copper tubing deep underground and have 2 loops.
48.
by Cold_Miserable 3y ago
Not interesting. Enter/leave also does the same thing as your save/restore rbp. Far more interesting I recall there might be an instruction where rbp isn't allowed.
49.
by Cold_Miserable 3y ago
"experts in performance".
50.
by Cold_Miserable 3y ago
Windows uses unicode because NTFS uses unicode instead of efficient ascii.
51.
by Cold_Miserable 3y ago
Austrian organic dark chocolate granola is delectable.
52.
by Cold_Miserable 3y ago
Turning off "fullscreen optimizations" doesn't always work. It may not even be possible for DirectX 12. If you press Start and the taskbar appears, its not fullscreen. I wrote a simple Direct3D test program and entering fulls
53.
by Cold_Miserable 3y ago
I knew about the instruction that Daniel Lemire missed too. It seems useless to me.
54.
by Cold_Miserable 3y ago
US justice system failing again nicely I see. The average man would be rotting in jail and slowly wasting away.
55.
by Cold_Miserable 3y ago
Using fibre-optic cable where light travels in a zig-zag instead of using lasers increases latency too.
56.
by Cold_Miserable 3y ago
AVX512 is scarcely faster than radix at 1 million elements while being vastly more complicated.
57.
by Cold_Miserable 3y ago
They haven't even found an optimal sort for a ymm of 8 or zmm of 16 integers? Just 5 elements? That's completely and utterly useless.
58.
by Cold_Miserable 3y ago
Archimedean Dynasty and the Entrox drive is surely your first thought? That awesome underwater game made by BlueByte software.
59.
by Cold_Miserable 3y ago
No. AVX512 was disabled because the money-men want to force you to buy the far more expensive Sapphire-Rapids which are the same chip. Same old Intel. Learned nothing. They didn't just fuse it off, they also forced microcode updates th