Getting started with SSE

Tags: c gcc sse simd
Question!

I want to learn more about using the SSE.

What ways are there to learn, besides the obvious reading the Intel® 64 and IA-32 Architectures Software Developer's Manuals?

Mainly I'm interested to work with the GCC X86 Built-in Functions.



Answers

I find Dr. Agner Fog's research

By : tomByrer


Since you asked for resources:

A practical guide to using SSE with C : Good conceptual overview on how to use SSE effectively, with examples.

MSDN Listing of Compiler Intrinsics: Comprehensive reference for all your intrinsic needs. It's MSDN, but pretty much all the intrinsics listed here are supported by GCC and ICC as well.

Christopher Wright's SSE Page: Quick reference on the meanings of the SSE opcodes. I guess the Intel Manuals can serve the same function, but this is faster.

It's probably best to write most of your code in intrinsics, but do check the objdump of your compiler's output to make sure that it's producing efficient code. SIMD code generation is still a fairly new technology and it's very possible that the compiler might get it wrong in some cases.

By : int3


This video can help you solving your question :)
By: admin