Intel® Xeon Phi™ coprocessor Power Management Turbo Part 1: What is turbo? And how will it affect my horsepower?


This is the first of a series of blogs looking at Turbo: What it is and how it impacts software.

This series discusses basic concepts, terminology, how Turbo relates to thermal profiles, when Turbo is useful, and whether Turbo can impact application design.

This is a follow on to my previous series of blogs on power management.

Intel® Xeon Phi™ coprocessor Power Management Part 3: An Intuitive Description of Power States Using Stick Figures and Light Bulbs


This is the fourth installment of a series of blogs on Power Management for the Intel® Xeon Phi™ coprocessor.

My solution of the Intel Accelerate Your Code 2013 Summer

Intel® Accelerate Your Code Summer 2013

In this contest we were given the sample source code, on which we could base our solution. This sample code had a number of issues:

1.     The program is not fast enough

2.     Only pixel-exact pattern transformations are found

3.     The program is not taking advantage of parallelism

Seven-Part Intel® Xeon Phi™ Coprocessor Compiler Video Series

Just Released!


This two-day webinar series introduces you to the world of multicore and manycore computing with Intel® Xeon® processors and Intel® Xeon Phi™ coprocessors. Expert technical teams at Intel discuss development tools, programming models, vectorization, and execution models that will get your development efforts powered up to get the best out of your applications and platforms.


Title: “Intel® Xeon Phi™ coprocessor Power Management Part 2b: Package C-States, The Details”

After gating the clocks of every one of the cores, what other techniques can you use to get even more power savings. Here’s a trivial and admittedly flippant example of what you could do: unplug the processor. You’d be using no power, though the disadvantages of pulling the power plug are pretty obvious. A better idea is to selectively shutdown the more global components of the processor in such a way that you can bring the processor back up to a fully functional state (i.e. C0) relatively quickly. Package C-States are just that, the progressive shutdown of additional circuitry to get even more savings. Since we have already shutdown the entire package’s circuitry associated with the cores, the remaining circuitry is necessarily common to all the cores, thus the name “package” C-states.

Choosing the right threading framework

This is the second article in a series of articles about High Performance Computing with the Intel Xeon Phi. The Intel Xeon Phi is the first commercial product of Intel to incorporate the Many Integrated Core architecture. In this article I will present various frameworks for unleashing the power of multiple threads on the Xeon Phi. We will also have a look at interesting properties and advantages / disadvantages of each framework.

  • 开发人员
  • 教授
  • 学生
  • Linux*
  • 服务器
  • C/C++
  • 高级
  • 中级
  • 英特尔® Cilk™ Plus
  • Intel® Threading Building Blocks
  • MIC
  • Xeon
  • Phi
  • performance
  • Pthreads
  • C++11
  • boost
  • CilkPlus
  • OpenMP*
  • 集群计算
  • 并行计算
  • 线程
  • Sanity Check: Statistical Validity of Intel® VTune™ Amplifier XE Results.

    I recently came across a post on the Intel® Many Integrated Core Architecture (Intel MIC Architecture) forum wherein the developer was expecting a certain count for a hardware event but this count was always zero. There are several cases in which you can encounter this behavior. Let’s walk through each scenario and take a closer look at what could be happening during the hardware event collection. 

    O Intel® Xeon Phi™ é o coprocessador certo para mim?

    Artigo original escrito por Eric Gardner (Intel).

    Se você está lendo este artigo, provavelmente você quer saber mais sobre o coprocessador Intel® Xeon Phi™ e o que ele pode fazer pelas aplicações que você desenvolve. Este artigo apresenta um processo simples e rápido para analisar se continuar usando os processadores Intel® Xeon® é o melhor para sua aplicação ou se adicionar o coprocessador Intel® Xeon® Phi™ à sua plataforma aumentará o desempenho da aplicação.

  • 开发人员
  • Linux*
  • 服务器
  • C/C++
  • Fortran
  • Intel® Xeon Phi™ Coprocessor
  • MIC
  • Eric Gardner
  • Intel® Many Integrated Core Architecture
  • 并行计算
  • 订阅 MIC