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New posts in avx
Preventing GCC from automatically using AVX and FMA instructions when compiled with -mavx and -mfma
Jun 21, 2020
c++
gcc
vectorization
avx
fma
Large (0,1) matrix multiplication using bitwise AND and popcount instead of actual int or float multiplies?
Mar 28, 2021
c++
sse
matrix-multiplication
avx
bitset
How to align stack at 32 byte boundary in GCC?
Oct 23, 2022
gcc
stack
sse
avx
How to force gcc to use all SSE (or AVX) registers?
Nov 10, 2022
gcc
64-bit
sse
register-allocation
avx
Horizontal XOR in AVX
Apr 25, 2022
c++
assembly
x86
simd
avx
Do 128bit cross lane operations in AVX512 give better performance?
Mar 23, 2019
performance
x86
intel
avx
avx512
Parallel programming using Haswell architecture [closed]
Apr 12, 2015
sse
cpu-architecture
avx
avx2
Does vzeroall zero registers ymm16 to ymm31?
Nov 20, 2022
assembly
x86
intel
avx
avx512
Is L2 HW prefetcher really helpful?
Apr 25, 2022
c
performance
assembly
x86-64
avx
AVX log intrinsics (_mm256_log_ps) missing in g++-4.8?
Nov 10, 2022
c++
g++
intrinsics
avx
How to efficiently combine comparisons in SSE?
May 06, 2021
c
optimization
assembly
sse
avx
Fastest way to unpack 32 bits to a 32 byte SIMD vector
Jan 01, 2017
x86
simd
avx
bitmask
avx2
Do all CPUs which support AVX2 also support SSE4.2 and AVX?
Nov 13, 2022
sse
simd
avx
avx2
SSE runs slow after using AVX
Apr 26, 2021
c++
gcc
x86
avx
sse2
Does Clang have something like #pragma GCC target?
Sep 27, 2022
clang
intrinsics
avx
pragma
What is the most efficient way to clear a single or a few ZMM registers on Knights Landing?
Feb 22, 2022
assembly
avx
xeon-phi
avx512
knights-landing
Packing and de-interleaving two __m256 registers
Apr 18, 2022
c++
x86
simd
avx
avx2
How to do an indirect load (gather-scatter) in AVX or SSE instructions?
Aug 19, 2022
c
vector
intel
sse
avx
Why both? vperm2f128 (avx) vs vperm2i128 (avx2)
Nov 15, 2022
intel
simd
avx
avx2
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