Top "Avx" questions

Fastest way to do horizontal vector sum with AVX instructions

I have a packed vector of four 64-bit floating-point values. I would like to get the sum of the vector's …

x86 sse simd avx vector-processing

Is there a version of TensorFlow not compiled for AVX instructions?

I'm trying to get TensorFlow up on my Chromebook, not the best place, I know, but I just want to …

python tensorflow avx

FMA3 in GCC: how to enable

I have a i5-4250U which has AVX2 and FMA3. I am testing some dense matrix multiplication code in …

c++ gcc intel avx fma

Intel AVX: 256-bits version of dot product for double precision floating point variables

The Intel Advanced Vector Extensions (AVX) offers no dot product in the 256-bit version (YMM register) for double precision floating …

c++ performance simd avx

SSE-copy, AVX-copy and std::copy performance

I'm tried to improve performance of copy operation via SSE and AVX: #include <immintrin.h> const int sz = 1024; …

c++ performance sse simd avx

SIMD math libraries for SSE and AVX

I am looking for SIMD math libraries (preferably open source) for SSE and AVX. I mean for example if I …

sse simd avx math.h

Using __m256d registers

How do you use __m256d? Say I want to use the Intel AVX instruction _mm256_add_pd on a …

c++ x86 intel simd avx

Optimizations for pow() with const non-integer exponent?

I have hot spots in my code where I'm doing pow() taking up around 10-20% of my execution time. My …

c++ math optimization avx exponent

Preventing GCC from automatically using AVX and FMA instructions when compiled with -mavx and -mfma

How can I disable auto-vectorization with AVX and FMA instructions? I would still prefer the compiler to employ SSE and …

c++ gcc vectorization avx fma

How to choose AVX compare predicate variants

In the Advanced Vector Extensions (AVX) the compare instructions like _m256_cmp_ps, the last argument is a compare predicate. …

simd avx