This article shows how to use 256-bit Intel® Advanced Vector Extensions (Intel® AVX) to normalize an array of 3D vectors. We describe a shuffle approach to convert between AOS & SOA on-the-fly in order to make data ready for up to 8-wide SIMD processing.
AVX
Autovectorization in Intel® OpenCL SDK 1.5
Hi everyone!
Intel just released the Intel® OpenCL SDK version 1.5, and I want to highlight one improvement that is very important but not always visible to the user: the new Implicit CPU Vectorization module.
What are the benefits of using the implicit CPU vectorization module?
Intel just released the Intel® OpenCL SDK version 1.5, and I want to highlight one improvement that is very important but not always visible to the user: the new Implicit CPU Vectorization module.
What are the benefits of using the implicit CPU vectorization module?
Intel® AVX C/C++ Intrinsics Emulation
This C/C++ header file can be used for AVX emulation on Intel CPUs/processors without h/w AVX support
Встречаем архитектуру Haswell и AVX2.0
Каждая новая процессорная архитектура привносит какие-то новшества. Иногда это касается только «внутренней кухни», вроде техпроцесса, планировщика и КЭШей. Такие изменения, как правило, вызывают бурные обсуждения среди всяческих аналитиков, но простых программистов заботят мало. Далеко не каждый способен представить, скажем, как отреагирует механизм предсказания переходов на изменение пары строчек внутри цикла. Как говорил классик «я знаю только то, что мне необходимо, и не собираюсь забивать голову ненужным хламом».
Discussion of "Using AVX Without Writing AVX" with Intel's Rich Hubbard - Parallel Programming Talk Show 114
Time for another episode of Parallel Programming Talk – This is show #114. Intel Software Engineer Rich Hubbard is here to talk about AVX.
What is Clay Thinking About? Segment
Kathy: The International Supercomputing Conference was held this week and that is where the summer version of the Top500 list is revealed. Clay, have you seen the new Top500 list?
La description des nouvelles instructions de Haswell
Intel vient de rendre publique les détails sur la prochaine génération des architectures X86. Arrivant en premier dans nos microarchitectures Intel en 2013 sous le nom de code "Haswell", les nouvelles instructions accèlerent une large catégorie d'applications et de modèles d'usage. Téléchargez la référence de programmation Intel® Advanced Vector Extensions Programming (319433-011).
Runtime stack check routine failure with AVX
In a specific code, involving AVX code and compiler's runtime stack check routines, the compiler emits erroneous code which leads to a malfunction of the runtime stack check routine (_RTC_CheckStackVars). The executed program terminates prematurly.
Intel® IPP 7.0 Library Installation Guide
Guide to installing the Intel IPP 7.0 library.
Is AVX enabled?
If we ask anyone who uses or plans to use or just advertises the intrinsic compiler functions for SIMD support (MMX, SSE, AVX): why do you do so, why it is good? The answer definitely will be something like this:"Intrinsics provide a C/C++ language interface to assembly instructions, so that we don't need to deal with assembler".
Performance Presentation: Concepts Behind Parallel Computing and Extended CPU Instructions
As you may have already read in a previous post called Personal Review of Intel Under-NDA Sandy-Bridge Event I held the last session in an Intel-Under-NDA event. The presentation was called Performance and covered the different aspects of parallel computing and also the new Sandy Bridge AVX Instructions.
Seiten
