Intel® Streaming SIMD Extensions

Updated Intel® Software Development Emulator

Hello, On October 2, 2014, we released version 7.8 of the Intel® Software Development Emulator. It is available here:


See the release notes for a full list of changes.


This release includes:


Оптимизировали, оптимизировали, да не выоптимизировали!

Оптимизация? Конечно, каждый сталкивался с данной задачей при разработке своих, сколь-нибудь значительных, требующих определённых вычислений, приложений. При этом способов оптимизировать код существует огромное множество, и, как следствие, различных путей сделать это в автоматическом режиме с помощью опций компилятора. Вот здесь и возникает проблема – как выбрать то, что нужно нам и не запутаться?

Links to instruction documentation

Behavior of some convert instructions with W=1 in non-64-bit mode

For instructions such as VCVTSI2SD, your doc is clear.  It says that in non-64 bit mode, W=1 will be have the same as W=0.  That is, the second source will be 32 bits memory or a 32 bit GPR.

HOWEVER, AMD's doc says something different.  I very rarely have seen any difference between Intel and AMD docs, and this is one such occasion.  To me, it is very important for reasons of software compatibility to resolve any such differences.

In AMD Volume 4, page 101, it says:

SGX support removed from Intel's ARK website?

Hi Intel


Until recently (1-2 weeks ago), Intel's ARK website listed SGX as being supported on the new Skylake 6600K and 6700K processors. However, this information now seems to have been removed? The page I'm talking about is (for the 6700K):

So does this mean SGX is no longer supported on these processors?



Intel® Parallel Studio XE 2016: High Performance for HPC Applications and Big Data Analytics

Intel® Parallel Studio XE 2016, launched on August 25, 2015, is the latest installment in our developer toolkit for high performance computing (HPC) and technical computing applications. This suite of compilers, libraries, debugging facilities, and analysis tools, targets Intel® architecture, including support for the latest Intel® Xeon® processors (codenamed Skylake) and Intel® Xeon Phi™ processors (codenamed Knights Landing). Intel® Parallel Studio XE 2016 helps software developers design, build, verify and tune code in Fortran, C++, C, and Java.

Fast Gathering-based SpMxV for Linear Feature Extraction

This algorithm can be used to improve sparse matrix-vector and matrix-matrix multiplication in any numerical computation. As we know, there are lots of applications involving semi-sparse matrix computation in High Performance Computing. Additionally, in popular perceptual computing low-level engines, especially speech and facial recognition, semi-sparse matrices are found to be very common. Therefore, this invention can be applied to those mathematical libraries dedicated to these kinds of recognition engines.
  • Разработчики
  • Партнеры
  • Профессорский состав
  • Студенты
  • Linux*
  • Microsoft Windows* (XP, Vista, 7)
  • Microsoft Windows* 8.x
  • Практика создания корректного кода
  • Windows*
  • C/C++
  • Средний
  • Intel® Advanced Vector Extensions
  • Intel® Streaming SIMD Extensions
  • Sparse Matrix-Vector multiplication
  • sparse matrix
  • Feature Extraction
  • speech recognition
  • Процессоры Intel® Core™
  • Оптимизация
  • Параллельные вычисления
  • Векторизация
  • SGX extensions



    With the new SGX extensions available in the new Skylake based CPU's (6700K and 6600K) I was wondering if Intel is ready to release more information about these technologies. Specifically:


    1) Is there any plans for an emulator that can be used to emulate these technologies?

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