GridSim安装报告

清华大学　朱穗晖 2004-5-19
GridSim是一个在Windows和Linux的平台上都可以运行的网格模拟器。这个模拟器是用Java编写的所以具有跨平台特性。GridSim可以进行网格调度算法的模拟、，可以通过提供的method来编写模拟文件，从而完成模拟的过程。
1 与其他模拟器的比较
在网格领域几个比较著名的模拟器有MicroGrid，SimGrid，和Bricks。与它们相比，GridSim对于人们来说是比较陌生的。下面先来简单总结一下我这段时间根据阅读的材料，得出对这几个模拟器的一些总结。
（1）       MicroGrid
这个模拟器是最有名的模拟器，关于它的详细资料可以参阅刘鹏的网格信息中转站www.chinagrid.net，上面有比较多的人研究这个。在这个网格中转站上有一个关于模拟器的虚拟学习组织，经过这几天的阅读获益匪浅。
从模拟器的意义上来说，MicroGrid是这几个模拟器中比较最接近真实的模拟器。它基于Linux，建立在Globus平台上，所有的程序都模拟在Globus的基础上运行。这个模拟器现在有比较多研究算法的人采用。
不过它有一个很致命的缺点，就是它要基于Globus，而且现在还没有支持Globus3的版本。只支持到Globus2.2，这也是我不选择这个模拟器的原因。
（2）       SimGrid
这个模拟器也是一个工具包，准确来说是一个API包。SimGrid也属于比较有名的一个工具包。它也是基于Linux平台，使用C来开发模拟器。这是我觉得最理想的一个模拟器，无奈想尽办法也装不上。如果能够装上，也希望能够在这个平台上跑模拟程序。
2 GridSim简介
很多人将GridSim与SimGrid混淆起来。其实SimGrid完全是Linux下面用C开发的。而GridSim完全是用Java开发的，因此具有跨平台特性。我选择Windows作为我的测试平台。
GridSim也是一套API的工具包，它也可以产生资源如处理器，也可以产生计算任务。这些都由API来完成。使用J2SDK1.42编译。然后输出结果到文件中。
3 GridSim安装步骤
下面以Window版本为例说明GridSim的安装。
（1）安装准备工作
从网站http://www.cs.mu.oz.au/~raj/gridsim/ 上面下载gridsimtoolkit-2.2（现在的最新版本）。下来是一个Zip包。
首先确认机器上是否有J2SDK。可以从java.sun.com上下载J2SDK的最新版本。一般是exe文件，点击装上即可。
设置Java环境变量的时候要非常注意。下面是在Windows XP上的设置方法。
在我的电脑—属性—高级—环境变量。双击Path，加入
.;C:\j2sdk1.4.1_01\bin;
点击“新建”，添加classpath项，值如下：
.;C:\j2sdk1.4.1_01\lib\dt.jar;C:\j2sdk1.4.1_01\lib\tools.jar;
点击“确定”完成设置。
（2）GridSim安装
点击解压后的安装文件。解压文件夹结构如下：
gridsimtoolkit-2.2/
index.html          -- This file
classes/            -- The .class files
doc/                -- API Documentation
eduni/
gridbroker/
gridsim/
visualmodeler/
examples/           -- Examples, see README.txt for details
jars/               -- jar archives
source/             -- The Java source code
gridbroker/*.java
gridsim/*.java
visualmodeler/*.java
（3）       编译与运行设置
这一部分在帮助文档上没有，但是为了编译方便我自己尝试加入如下内容。
在Classpath加入C:\gridsimtoolkit-2.2\jars\all.jar
这样可以在任意目录编译运行Gridsim的Java程序了。
（4）       测试运行结果
测试文件是软件包中的Example1
该文件显示了如何使用API来讲三台机器初始化为一个网路资源/
测试文件如下
Example1.java
/*
* Author: Anthony Sulistio
* Date: April 2003
* Description: A simple program to demonstrate of how to use GridSim package.
*              This example shows how to create one Grid resource with three
*              machines.
*
* NOTE: The values used from this example are taken from the GridSim paper.
*       http://www.gridbus.org/gridsim/
* $Id: Example1.java,v 1.5 2003/12/14 05:35:24 anthony Exp $
*/
import java.util.*;
import gridsim.*;
/**
* This class creates one Grid resource with three machines. Before creating
* any of GridSim entities, you should remember to call
* GridSim.Init().
*/
class Example1
{
/**
* Main function to run this example
*/
public static void main(String[] args)
{
System.out.println("Starting example of how to create one Grid " +
"resource");
try
{
// First step: Initialize the GridSim package. It should be called
// before creating any entities. We can‘t run GridResource
// entity without initializing GridSim first. We will get run-time
// exception error.
int num_user = 0;   // number of users need to be created
Calendar calendar = Calendar.getInstance();
boolean trace_flag = true; // mean trace GridSim events/activities
// list of files or processing names to be excluded from any
//statistical measures
String[] exclude_from_file = { "" };
String[] exclude_from_processing = { "" };
// the name of a report file to be written. We don‘t want to write
// anything here. See other examples of using the
// ReportWriter class
String report_name = null;
// Initialize the GridSim package
System.out.println("Initializing GridSim package");
GridSim.init(num_user, calendar, trace_flag, exclude_from_file,
exclude_from_processing, report_name);
// Second step: Create one Grid resource
GridResource gridResource = createGridResource();
System.out.println("Finish the 1st example");
}
catch (Exception e)
{
e.printStackTrace();
System.out.println("Unwanted error happens");
}
}
/**
* Creates one Grid resource. A Grid resource contains one or more
* Machines. Similarly, a Machine contains one or more PEs (Processing
* Elements or CPUs).
*

* In this simple example, we are simulating one Grid resource with three
* Machines that contains one or more PEs.
* @return a GridResource object
*/
private static GridResource createGridResource()
{
System.out.println("Starting to create one Grid resource with " +
"3 Machines ...");
// Here are the steps needed to create a Grid resource:
// 1. We need to create an object of MachineList to store one or more
//    Machines
MachineList mList = new MachineList();
System.out.println("Creates a Machine list");
// 2. A Machine contains one or more PEs or CPUs. Therefore, should
//    create an object of PEList to store these PEs before creating
//    a Machine.
PEList peList1 = new PEList();
System.out.println("Creates a PE list for the 1st Machine");
// 3. Create PEs and add these into an object of PEList.
//    In this example, we are using a resource from
//    hpc420.hpcc.jp, AIST, Tokyo, Japan
//    Note: these data are taken the from GridSim paper, page 25.
//          In this example, all PEs has the same MIPS (Millions
//          Instruction Per Second) Rating for a Machine.
int MIPSRating = 377;
peList1.add( new PE(0, MIPSRating) );  // store PE id and MIPS Rating
peList1.add( new PE(1, MIPSRating) );
peList1.add( new PE(2, MIPSRating) );
peList1.add( new PE(3, MIPSRating) );
System.out.println("Creates 4 PEs with same MIPS Rating and put " +
"them into the PE list");
// 4. Create one Machine with its id and list of PEs or CPUs
mList.add( new Machine(0, peList1) );   // First Machine
System.out.println("Creates the 1st Machine that has 4 PEs and " +
"stores it into the Machine list");
// 5. Repeat the process from 2 if we want to create more Machines
//    In this example, the AIST in Japan has 3 Machines with same
//    MIPS Rating but different PEs.
// NOTE: if you only want to create one Machine for one Grid resource,
//       then you could skip this step.
PEList peList2 = new PEList();
System.out.println();
System.out.println("Creates a PE list for the 2nd Machine");
peList2.add( new PE(0, MIPSRating) );
peList2.add( new PE(1, MIPSRating) );
peList2.add( new PE(2, MIPSRating) );
peList2.add( new PE(3, MIPSRating) );
System.out.println("Creates 4 PEs with same MIPS Rating and put " +
"them into the PE list");
mList.add( new Machine(1, peList2) );   // Second Machine
System.out.println("Creates the 2nd Machine that has 4 PEs and " +
"stores it into the Machine list");
PEList peList3 = new PEList();
System.out.println();
System.out.println("Creates a PE list for the 3rd Machine");
peList3.add( new PE(0, MIPSRating) );
peList3.add( new PE(1, MIPSRating) );
System.out.println("Creates 2 PEs with same MIPS Rating and put " +
"them into the PE list");
mList.add( new Machine(2, peList3) );   // Third Machine
System.out.println("Creates the 3rd Machine that has 2 PEs and " +
"stores it into the Machine list");
// 6. Create a ResourceCharacteristics object that stores the
//    properties of a Grid resource: architecture, OS, list of
//    Machines, allocation policy: time- or space-shared, time zone
//    and its price (G$/PE time unit).
String arch = "Sun Ultra";      // system architecture