Hacker News with Generative AI: SIMD

Fundamental flaws of SIMD ISAs (2021) (bitsnbites.eu)
According to Flynn’s taxonomy SIMD refers to a computer architecture that can process multiple data streams with a single instruction (i.e. “Single Instruction stream, Multiple Data streams”).

Computer Architecture, SIMD, Performance, ISA

147 points by fanf2 2 days ago | 129 comments

Towards fearless SIMD, 7 years later (linebender.org)
Seven years ago I wrote a blog post Towards fearless SIMD, outlining a vision for Rust as a compelling language for writing fast SIMD programs. Where are we now?

Rust, Programming Languages, SIMD, Performance, History

177 points by raphlinus 27 days ago | 175 comments

Compiling Array Languages for SIMD [pdf] (vmchale.com)

Compilers, SIMD, Array Languages

52 points by vmchale 76 days ago | 13 comments

C is not suited to SIMD (2019) (vmchale.com)
C (C++) is used to write performant software, however it is ill-suited to SIMD. In particular, its compilation of stepped reduction with lexical scoping opposes parallel execution.

C, Programming Languages, Performance, SIMD

89 points by zetalyrae 93 days ago | 120 comments

Expressive Vector Engine – SIMD in C++ (github.com/jfalcou)
EVE is a re-implementation of the old EVE SIMD library by Falcou et al. which for a while was named Boost.SIMD. It's a C++20 and onward implementation of a type based wrapper around SIMD extensions sets for most current architectures. It aims at showing how C++20 can be used to design and implement efficient, low level, high abstraction library suited for high performance.

C++, SIMD, Performance Optimization, Libraries, Open Source

76 points by klaussilveira 111 days ago | 36 comments

RISC-V Vector Extension overview (0x80.pl)
The goal of this text is to provide an overview of RISC-V Vector extension (RVV), and compare — when applicable — with widespread SIMD vector instruction sets: SSE, AVX, AVX-512, ARM Neon and SVE.

RISC-V, Computer Architecture, Vector Processing, SIMD

9 points by matt_d 167 days ago | 0 comments

RISC-V Vector Extension overview (0x80.pl)
The goal of this text is to provide an overview of RISC-V Vector extension (RVV), and compare — when applicable — with widespread SIMD vector instruction sets: SSE, AVX, AVX-512, ARM Neon and SVE.

RISC-V, Computer Architecture, SIMD, Vector Processing

10 points by mfiguiere 167 days ago | 0 comments

Minotaur: A SIMD-Oriented Synthesizing Superoptimizer [pdf] (cs.utah.edu)

Computer Science, Optimization, Superoptimization, SIMD

55 points by luu 183 days ago | 2 comments

A not so fast implementation of cosine similarity in C++ and SIMD (joseprupi.github.io)
There isn’t much to see here, just me dusting off some old architecture knowledge to parallelize computations using SIMD, implement it in C++, and compare the results with Python.

C++, SIMD, Optimization, Programming, Performance

66 points by melenaboija 193 days ago | 20 comments

SIMD Matters: Graph Coloring (box2d.org)

SIMD, Graph Coloring, Computer Graphics

189 points by matt_d 247 days ago | 72 comments

SIMD Matters (box2d.org)

SIMD, Performance Optimization

17 points by thefroh 248 days ago | 2 comments

x86 amd64 SIMD instruction list: SSE to AVX512 (officedaytime.com)

x86, AMD64, SIMD, Instructions

16 points by fanf2 265 days ago | 3 comments

Scan HTML even faster with SIMD instructions (C++ and C#) – Daniel Lemire's blog (lemire.me)