英特尔® VTune™ 性能分析器

Problem accessing the sampling driver. The driver may need to be (re)started...

This error message is an indication of Intel® VTune™ Amplifier XE not being able to access the sampling driver when lightweight hotspot or any other event based sampling analysis types is selected.
  • Linux*
  • 英特尔® VTune™ 性能分析器
  • 英特尔® VTune™ 放大器 XE
  • Use Instructions Retired Events to Evaluate Threading Methodology


    Challenge

    Evaluate instructions-retired data in conjunction with performance data to examine the correctness of threading methodology. The Instructions Retired processor event in the VTune™ Performance Analyzer is a key performance indicator. Instructions Retired can give you quick insight into possible performance problems in your application.

  • Microsoft Windows* (XP, Vista, 7)
  • 英特尔® VTune™ 性能分析器
  • Multi-thread apps for Multi-Core
  • How to thread?
  • Performance analysis
  • 并行计算
  • 通往多核高速路的入口:为代码并行化做准备

    This article discusses how coding and optimization on-the-fly are opposed and how performance experts approach performance improvement. It explains how they systematically prepare their code for optimization and how the optimization process is done.
  • 开发人员
  • 游戏开发
  • 英特尔® Parallel Amplifier
  • 英特尔® VTune™ 性能分析器
  • 游戏开发
  • 图形
  • 并行计算
  • Intel license manager for FLEXlm on Windows issue: not a valid counted license


    Problem : 
    I have installed Intel license manager on my Windows OS server, however, I got the error as below when I started Intel license manager for FLEXlm: "The file you selected is not a valid counted license. Please select a different license file." Can you help me to fix this error?

    Resolution : 

    To work around this issue, please do the following:
    1. Open a cmd prompt window
    2. Run this command in the cmd prompt window:
    copy /y "%CommonProgramFiles%\Intel\FLEXlm\chklic.exe" "%TEMP%"

  • Microsoft Windows* (XP, Vista, 7)
  • C/C++
  • Fortran
  • 英特尔® C++ 编译器
  • Intel® MPI Library
  • 英特尔® 线程检测器
  • 英特尔® 跟踪分析器和跟踪采集器
  • 英特尔® VTune™ 性能分析器
  • flexlm
  • license manager
  • License server
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