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Intel® Xeon Phi™ Coprocessor code named “Knights Landing” - Application Readiness

As part of the application readiness efforts for future Intel® Xeon® processors and Intel® Xeon Phi™ coprocessors (code named Knights Landing), developers are interested in improving two key aspects of their workloads:

  1. Vectorization/code generation
  2. Thread parallelism

This article mainly talks about vectorization/code generation and lists some helpful tools and resources for thread parallelism.

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  • 哈工大计算机网络实验一 :多线程服务器编程

    思路:linux下包含头文件#include <pthread.h>

    编译的时候加上参数 -lpthread

    对于服务器端,服务器对socket处理的部分与接收客户端字符串的部分分开写,

    服务器端的主函数中首先使用socket()函数创建socket,然后使用bind()函数将socket与ip地址和端口绑定,

    再调用listen()函数设置为监听端口状态和监听的最大值,最后在while(1)循环里写accept()函数,每接收到一个客户端

    就响应并且创建一个线程来处理。

    服务器端代码:

    server_tcp.c

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  • 介绍一种服务器缓存结构 --- 多级 Hash

           现在的服务器网络数据收发与存储没有不做缓存的。如果公司的重要数据存储在磁盘中,且数据接近静态但每天局有部更新而且也有大量访问,不做缓存不能发挥机器的高性能。

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  • 基于 hadoop 文件系统以及 Hbase 的微博系统

    一、部署前提

    1.在Linux环境

    2.安装部署了hadoop

    3.安装部署了hbase

    4.安装了web应用服务器,如tomcat、或者jetty等

    5.部署struts2

    二、应用介绍

         以基于Hbase的hadoop为数据库,实现用户发布微博和,关注用户及等功能,涉及到Hbase表结构设计,相应实现的Java API等一些内容。使用hbase作为微博系统的数据存储平台有如下好处:根据微博系统的特点,微博用户数量庞大,且关注和被关注数据严重不相等,这些特点刚好可以通过hbase分布式处理数据的一些特性得以满足,如果使用旧的关系数据库可能对一个单独的服务器要求非常之高。

    三、部分实现

    由于篇幅较长,就用最常见的用户注册和登录来举例说明,其他功能其实都类似,总的架构来说都是比较熟悉的MVC,浏览器发送请求到服务器,通过struts分发请求,最终结果又返回到浏览器。

    1.用户注册/登录,前台页面就不一一描述了,就是普通的输入用户名密码然后点击注册/登录等。

    struts配置

    Use which hardware PMU events to calculate FLOPS on Intel(R) Xeon Phi(TM) coprocessor?

    FLOPS means total floating point operations per second, which is used in High Performance Computing. In general, Intel(R) VTune(TM) Amplifier XE
    only provides metric named Cycles Per Instruction (average CPI), that is to measure performance for general programs.

    Intel® Memory Protection Extensions Enabling Guide

    Abstract: This document describes Intel® Memory Protection Extensions (Intel® MPX), its motivation, and programming model. It also describes the enabling requirements and the current status of enabling in the supported OSs: Linux* and Windows* and compilers: Intel® C++ Compiler, GCC, and Visual Studio*.  Finally, the paper describes how ISVs can incrementally enable bounds checking in their Intel MPX applications.

    Introduction

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  • Establish XDB connection on non-shared JTag design

    The 60 Pin Debug Port (XDP) Specification Document (DPS) specifies the open chassis Platform requirements to implement a 60 Pin XDP connector to use PHG XDP debug tools and third party vendors that support the 60 Pin XDP interface.

    Since Skylake platform, internal boards that will be used as a reference to external customers are required to implement 1 X Merged 60 Pin XDP Connector.

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  • SDN, NFV, DPDK and the Open Networking Platform - FAQ

    Frequently Asked Questions on SDN, NFV, DPDK and the Intel® Open Network Platform Server

    Why are SDN and NFV so important?

    Software Defined Networking (SDN) and Network Functions Virtualization (NFV) are emerging as an alternative to traditional network design because they address many of the drawbacks of traditional hardware based networks.  SDN and NFV offer four primary benefits:

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