Recent questions tagged SIMD

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simd - Logarithm with SSE, or switch to FPU?

I'm doing some statistics calculations. I need them to be fast, so I rewrote most of it to use SSE. I'm ... a function for SSE that does log2 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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simd - How to use the Intel AVX in Java?

How do I use the Intel AVX vector instruction set from Java? It's a simple question but the answer seems to be hard to find. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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simd - How to use the Intel AVX in Java?

How do I use the Intel AVX vector instruction set from Java? It's a simple question but the answer seems to be hard to find. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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simd - 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 ... unordered, signaling) */ See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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simd - ARM Cortex-A8: Whats the difference between VFP and NEON

In ARM Cortex-A8 processor, I understand what NEON is, it is an SIMD co-processor. But is VFP(Vector ... anyone elaborate more on this topic? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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simd - Transpose an 8x8 float using AVX/AVX2

Transposing a 8x8 matrix can be achieved by making four 4x4 matrices, and transposing each of them. This ... the smallest instructions possible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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