avx2 Examples and Free Source Code

Is it really efficient to use Karatsuba algorithm in 64-bit x 64-bit multiplication?...

c++performance parallel-processing simd avx2

Fastest way to multiply an array of int64_t?...

c vectorization multiplication avx avx2

How to align/rotate a 256 bit vector in AVX2?...

rust simd intrinsics avx avx2

Fast __m256i bit operations - find or clear highest or lowest set bit...

x86 bit-manipulation simd avx avx2

How to force gcc to use avx2 for copying a 32-byte struct with shared between threads?...

c assembly x86-64 avx avx2

Transform random integers into range [min,max] without branching...

c++bit-manipulation simd avx2 branchless

Unpack 12-bit data quickly (where the nibbles aren't contiguous; how to shuffle nibbles?)...

c#c++avx avx2 pixelformat

x86-64 SIMD mechanism to "compare" 8-bit unsigned integers, giving a vector of +1 / 0 / -1...

simd avx avx2 avx512

How to chain avx2 intrinsics efficiently to perform chain of arithmetic operations?...

gcc optimization vectorization intrinsics avx2

Am I missing a target-feature for AVX512 when I compile my Rust code?...

rust simd rust-cargo avx2 avx512

SSE Vector Comparison with Epsilon...

c optimization sse avx avx2

Efficient (on Ryzen) way to extract the odd elements of a __m256 into a __m128?...

c++vectorization x86-64 sse avx2

How to pack +-1 signs of 8 packed 32-bit integers (in an __m256i) into bytes of a 64-bit integer?...

c++performance simd intrinsics avx2

Seg fault while using _mm256_i64gather_pd...

c++intrinsics avx avx2

perf report shows this function "__memset_avx2_unaligned_erms" has overhead. does this mea...

c++profiling avx perf avx2

SIMD bit reordering of packed 12-bit integer array...

c simd neon avx2 pixelformat

AVX2 code cannot be faster than gcc base optmization...

c++performance x86-64 micro-optimization avx2

Xcode Apple Clang enable avx512...

xcode clang avx avx2 avx512

What's the fastest way to perform an arbitrary 128/256/512 bit permutation using SIMD instructio...

c++assembly sse avx avx2

SIMD Intrinsics AVX. Tried to use _mm256_mullo_epi64. But got 0xC000001D: Illegal Instruction except...

c++exception simd avx avx2

Disabling AVX2 in CPU for testing purposes...

testing x86 avx instruction-set avx2

How to implement an efficient _mm256_madd_epi8 dot-products of groups of four i8 elements?...

c++x86 simd intrinsics avx2

Shifting values of avx2 packed single vector...

c++performance avx2

How to convert 32-bit float to 8-bit signed char? (4:1 packing of int32 to int8 __m256i)...

c x86 simd intrinsics avx2

Convert 128 bit AVX register with 8-bit elements to two 256 bit registers with 32-bit elements...

performance x86 simd avx avx2

Does Zen 4 core have 48 flops per cycle for 32-bit precision fp?...

performance x86-64 cpu-architecture avx2 amd-processor

How to gather arbitrary indexes in VCL with AVX2 enabled...

c++x86 vectorization avx2 vector-class-library

Fastest way to implement _mm256_mullo_epi4 using AVX2...

c x86-64 intrinsics avx avx2

What is the fastest way to calculate the logical_and (&&) between elements of two __m256i va...

c++simd avx avx2 logical-and

How to load 128bit data to ymm register in assembly?...

assembly x86 avx avx2