Server

Resolving Symbols for Intel® Manycore Platform System Stack (Intel® MPSS) in Intel® VTune™ Amplifier XE Analysis

Background

Whenever Intel VTune Amplifier XE is unable to resolve symbols for libraries or the operating system, it lumps all the counts for that module together. Often, these lumped counts end up at the top of the hotspot list, skewing the analysis. By setting the correct search library path in an analysis, you can help Intel VTune Amplifier XE further resolve the counts into its constituent functions and thus rank them appropriately. 

  • Entwickler
  • Professoren
  • Studenten
  • Server
  • Intel® VTune™ Amplifier XE
  • Intel® Many Integrated Core Architektur
  • Optimierung
  • Recipe: Building and Optimizing the Hogbom Clean Benchmark for Intel® Xeon Phi™ Coprocessors

    Overview

    This article provides a recipe for compiling and running the Hogbom Clean benchmark for the Intel® Xeon Phi™ coprocessor and discusses the various optimizations applied to the code. 

  • Entwickler
  • Professoren
  • Studenten
  • Linux*
  • Server
  • C/C++
  • Experten
  • Fortgeschrittene
  • Intel® C++-Compiler
  • OpenMP*
  • Intel® Many Integrated Core Architektur
  • Optimierung
  • Buyers Remorse

    So I can't set up the Xeon Phi in Linux like I need it without it deleting my entire hard drive and I refuse to spend another $3000 just to be able to compile on windows. Now after spending days on the phone with support and getting no help at all I am left with a $2000 piece of crap I can't even use.

     

    Buyer beware!

    How to get peak performnace in FFT

    Hi,

    I want to get peak performance using batch FFT. I am giving sample code below that i have written. I have compiled on host using command icc -mkl fftcheck.cpp -o fftchecknew -L/opt/intel/mkl/lib/intel64. Also i have set some environment variables mentioned below.

    export  MIC_ENV_PREFIX=MIC

    export  MIC_KMP_AFFINITY=scatter,granularity=fine

    export  MIC_OMP_NUM_THREADS=240

    export MIC_USE_2MB_BUFFERS=64K.

    ./fftchecknew 512 1024 1024.

    Rebuilding MPSS-3.2 (Yocto) release from source

    Dear community,

    I think I have managed to go some steps forward to rebuild the Intel Xeon Phi MPSS-3.2 release (with Yocto, poky, bitbake ...) to add some required features in our installation. Now I'm stuck at the following with missing source code to rebuild the minimal mpss image:

    Offload error: process on the device 0 was terminated by signal 11 (SIGSEGV)

    I have the error message: offload error: process on the device 0 was terminated by signal 11 (SIGSEGV)

    Compiler flags: 

         icc $(SOURCES) -lOpenCL -fopenmp -O3

    Offload code:

    void Convolution_Serial_Offload_ExplicitMemCopy(float * pInput, float * pFilter, float * pOutput,

              const int nInWidth, const int nWidth, const int nHeight,

              const int nFilterWidth)

    {

    Server abonnieren