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Calculating “FLOP” using Intel® Software Development Emulator (Intel® SDE)

Purpose

Floating point operations (FLOP) rate is used widely by the High Performance Computing (HPC) community as a metric for analysis and/or benchmarking purposes. Many HPC nominations (e.g., Gordon Bell) require the FLOP rate be specified for their application submissions.

The methodology described here DOES NOT rely on the Performance Monitoring Unit (PMU) events/counters. This is an alternative software methodology to evaluate FLOP using the Intel® SDE.

  • Desenvolvedores
  • Professores
  • Estudantes
  • Linux*
  • Servidor
  • Avançado
  • Intermediário
  • Intel® Software Development Emulator
  • FLOP
  • Knight’s Landing
  • Intel® SDE
  • HPC
  • Floating point operations
  • Intel® Xeon Phi™ Coprocessor
  • Intel® Core™ processor family
  • Arquitetura Intel® Many Integrated Core
  • 使用英特尔® 软件开发仿真器(英特尔® SDE)计算 “FLOP”

    目的

    作为分析指标和/或基于性能指标评测目的,浮点运算 (FLOP) 速度广泛运用于高性能计算 (HPC) 社区。 许多 HPC 贡献者(比如戈登·贝尔)要求提交应用时注明 FLOP 速度。

    本文所述的方法不依赖于性能监控单元 (PMU) 事件/计数器。 它是一种使用英特尔® SDE 评估 FLOP 的替代性软件方法。

  • Desenvolvedores
  • Professores
  • Estudantes
  • Linux*
  • Servidor
  • Avançado
  • Intermediário
  • Intel® Software Development Emulator
  • FLOP
  • Knight’s Landing
  • Intel® SDE
  • HPC
  • Floating point operations
  • Intel® Xeon Phi™ Coprocessor
  • Intel® Core™ processor family
  • Arquitetura Intel® Many Integrated Core
  • MPSS 3.4.3 Glibc error: gethostbyname_r returns EINVAL not ERANGE

     

    The following is a slightly modified test for the GHOST vulnerability:

    #include <netdb.h>
    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
    #include <errno.h>

    #define CANARY "in_the_coal_mine"

    struct {
      char buffer[1024];
      char canary[sizeof(CANARY)];
    } temp = { "buffer", CANARY };

    int main(void) {
      struct hostent resbuf;
      struct hostent *result;
      int herrno;
      int retval;

    Running OpenCV Computer Vision Programs on Xeon Phi

     

    Hello,
    I would like to know how to run opencv programs by using the intel xeon phi coprocessor card? What are my options? Also, how can i work with the Transparent API released by OpenCV and Xeon Phi ? Has Intel developed any module or support for running computer visions programs on the xeon phi?  Any suggestions or thoughts in this regard will be greatly appreciated.
    Thankyou.

    Trying to create an external bridge

    Hi guys,

    I'm trying to create an external bridge following the users guide from Intel.

    First of all I execute the following command:

    micctrl --addbridge=br0 --type=external --ip=<ip_HOST>

     

    Then, I can see that a file ifcfg-br0 has created and I can see the bridge created with brctl show. Also I attached the eth1 interface to the bridge br0

     

    Then, when I try execute:

     

    micctrl --network=static --bridge=br0 --ip=<ip_MIC0>

     

    I always obtain this error:

     

    [Error] Bridge 'br0' not defined

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