Intel® Developer Zone:
Intel® AVX

Vision Statement

The need for greater computing performance continues to grow across industry segments. To support rising demand and evolving usage models, we continue our history of innovation with the Intel® Advanced Vector Extensions (Intel® AVX).

Intel® AVX is a new-256 bit instruction set extension to Intel® SSE and is designed for applications that are Floating Point (FP) intensive. It was released early 2011 as part of the Intel® microarchitecture code name Sandy Bridge processor family and is present in platforms ranging from notebooks to servers. Intel AVX improves performance due to wider vectors, new extensible syntax, and rich functionality. This results in better management of data and general purpose applications like image, audio/video processing, scientific simulations, financial analytics and 3D modeling and analysis.

Overview

Tools & Downloads

  • Intel® C++ Compiler

    The Intel® C++ Compiler is available for download from the Intel® Registration Center for all licensed customers. Evaluation versions of Intel® Software Development Products are also available for free download.

  • Intel Intrinsics Guide

    The Intel Intrinsics Guide is an interactive reference tool for Intel intrinsic instructions, which are C style functions that provide access to many Intel instructions – including Intel® Streaming SIMD Extensions [XX] (Intel® SSE[XX]), Intel® Advanced Vector Extensions (Intel® AVX), and more – without the need to write assembly code.

    • Intel Intrinsics Guide (OS X*)
    • Intel Intrinsics Guide (Linux*)
    • Intel Intrinsics Guide (Windows*)
27-Apr-2012
5:40 PM PDT
A Guide to Auto-vectorization with Intel® C++ Compilers
By mark-sabahi (Intel)4
How to use the automatic vectorizer of the Intel® C/C++ Compiler to optimize your application using Intel Streaming SIMD Extensions (Intel SSE) or Intel Advanced Vector Extensions (Intel AVX).
05-Mar-2012
9:00 PM PST
Benefits of Intel® Advanced Vector Extensions For Quaternion Spherical Linear Interpolation (Slerp)
By Pallavi Mehrotr...6
Intel® AVX is a 256 bit instruction set extension to Intel® SSE and is designed for floating point intensive applications. This article examines how Intel® AVX micro architecture features benefit Spherical Linear Interpolation (SLERP) opserations.
09-Feb-2012
3:42 PM PST
Wiener Filtering Using Intel® Advanced Vector Extensions
By Kit Chung (Intel)0
Wiener filtering (also known as Least Mean Square filtering) is a technique for removing unwanted noise from an image. This article discusses Wiener filtering, and includes an example of code that has been optimized using Intel® AVX
09-Feb-2012
3:40 PM PST
Utilizing Intel® AVX with Cakewalk SONAR* X1
By Rajshree Chabuk...0
SONAR* is Cakewalk's technology-leading digital audio workstation and runs natively on Intel® Core™ platforms. SONAR's processing of audio buffers for mixing and DSP as well as various data and bit depth conversions was updated to use Intel® AVX.

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Jeff's Notebook: 3D Vector Normalization Using 256-Bit Intel® Advanced Vector Extensions (Intel® AVX)
By Jeff Kataoka (Intel)Posted February 11th 20110
With the launch of our New Second Generation Intel® Core processor, there has been a lot of interested in the Intel® Advanced Vector Extensions (Intel® AVX). I decided to investigate more on how application developers targeting the Second Generation Intel core processor for their application might ...
Visual Studio 2010 Built-in CPU Acceleration
By Asaf ShellyPosted December 20th 20105
Writing the sample code for this post I was amazed myself to see how simple it was to reach over 20 times performance improvement with so little effort.    The motivation is a very heavy video processing algorithm created for HD TV. This means hi-resolution which means many pixels to compute and ...
New Parallel Studio: Intel Parallel Studio 2011
By James Reinders ...Posted September 14th 20101
This month, we introduced Intel Parallel Studio 2011. It is a very worthy successor to the original Intel Parallel Studio by expanding both on the tooling and the parallel programming models it offers. On the tooling, we have the Intel ...
Parallel Programming Talk #62 - What Every Software Developer Should Know About Intel AVX
By aaron-tersteeg ...Posted February 3rd 20100
Welcome to Show 62 of Parallel Programming Talk. Today is February 2nd. Groundhog day in the United States. On this episode Clay and Aaron will be addressing recent questions about what every software developer should know ...

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sandhya p.Sun, May 12th 2013 - 4:09
8086/8088 core9
Hi,  I am a grad student in EE. I am looking for 8088/8086 core for my project. Project is to design a bus monitor which can interface with either 8088/8086. I searched on opencore.org but could not find. I am looking for one which has all pins exposed - ALE, RD, WR, DEN, Addr/Data etc.  Please can ...
zlwFri, May 10th 2013 - 16:21
with _mm256 instruction, does it matter to use -xAVX to compiler?12
I wrote some AVX instructions like :     __m256 x0 = _mm256_load_ps(f);    __m256 y0 = _mm256_load_ps(f+8);    __m256 z0 = _mm256_add_ps(x0, y0);    _mm256_store_ps( s, z0); When I compiler this, does it matter whether I use -xAVX compiler option or not? I am using icpc 2013 on Linux  
zalia64Tue, May 7th 2013 - 22:41
64-bit bug in Visual C++? mov R8d,imm not completley defined12
The Intel  documentation does not specify wether  mov R8d , -1  will also zero the high dword of R8, or leave it intact.  The Microsoft Visual C++  (2010)  translate the C line  a = myfunc(par1, par2, 3) ; into          mov RCX, par1 ; mov RDX, par2 ;   mov R8b, 3 ;    call myfunc;    move qword ...
maratyszczaWed, May 1st 2013 - 16:06
Haswell RCPPS/RSQRTPS implementation16
Hi, I work on code which targets AVX2 + FMA3 and depends on the accuracy of VRCPPS/VRSQRTPS. Should I expect the implementation of these instructions on Haswell to be the same as on Ivy Bridge? Regards, Marat

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