OpenMP*

OpenMP 4.0 may offer important solutions for targeting and vectorization

The upcoming OpenMP 4.0 will be discussed at SC12, and there will be a number of additions I'm particularly excited to see coming from OpenMP.  They are: "SIMD extensions" and "targeting extensions."  One helps make the intention of a developer to have code vectorized efficiently be realized, and the other allows for the first time an industry standard to designate code and data be targeted to an attached device.

Intel® Inspector XE 2013: автоматическая верификация и отладка в реальном времени

Тестирование и поиск ошибок – неотъемлемая и не самая интересная часть процесса разработки ПО. Для избавления себя от рутины этот процесс все стараются автоматизировать. И если для проверки функционала приложения создаются специализированные самодельные тесты, то поиск ошибок общего типа далеко не всегда ими покрывается. Проверяется ли, например, ваше приложение на наличие утечек памяти или гонок данных? В этой статье рассмотрим, как использовать обновлённый Inspector XE 2013 в двух ипостасях:

Architecture Pattern: Compute On Demand

There are so many examples of applications using pre-processing strategy that it is trivial. For example using a webcam we often find the device driver doing some software adjustments and corrections such as white balancing. Too often we find devices using software features. Other examples would be in a pipeline and User Interfaces. When it comes to UI we already learned to fill the list when the user clicks the drop-down, so only when the user really wants to use the list we will "pay" for the data.

OMP_PROC_BIND is now supported on compatible non-Intel processors

The newest versions of the Intel® C++ and Fortran compilers now support OpenMP* environment variable OMP_PROC_BIND on compatible non-Intel processors for Linux* and Windows* platforms.  The compilers containing the fixes are Intel® Composer XE 2011 Update 13 and Intel® Composer XE 2013 Update 1.  Previous versions of these compilers do not support OMP_PROC_BIND, as defined by the OpenMP* Version 3.1 API specification, on non-Intel processors.  Setting OMP_PROC_BIND={true, false} on a non-Intel processor and running a program linked against the Intel® OpenMP* runtime

  • Sviluppatori
  • Professori
  • Studenti
  • Linux*
  • Microsoft Windows* (XP, Vista, 7)
  • Client business
  • Server
  • C/C++
  • Fortran
  • Intermedio
  • Intel® C++ Composer XE
  • Intel® Fortran Composer XE
  • Intel® Visual Fortran Composer XE
  • OMP_PROC_BIND
  • GOMP_CPU_AFFINITY
  • OpenMP*
  • Elaborazione parallela
  • Considerations for tuning Your Intel® Xeon Linux*/Apache* Server

    In this blog, I will discuss a list of useful Linux commands to run, to tune your system for running the Apache web service, as well as some Apache tuning configuration changes which have shown to improve performance in some of our benchmarks.   In our tests, we used a software benchmark (SPECweb2009) to simulate load, however the analysis and tuning process described here applies to anyone who is trying to get more performance out of their Linux web servers.

    Case Study: Computing Black-Scholes with Intel® Advanced Vector Extensions

    1. Introduction

    In its relentless effort to lead innovation and deliver greater compute capacity and lower power consumption to satisfy the growing demands across the industry segments and the evolving usage models, Intel introduced a new set of instructions called the Intel® Advanced Vector Extensions (Intel® AVX) implemented on a wide range of Intel platforms.

  • Sviluppatori
  • Server
  • Intel® Advanced Vector Extensions
  • OpenMP*
  • Settore dei servizi finanziari
  • Iscriversi a OpenMP*