Customer Service Chat
Get quote & make Payment
Advance operating systems, computer programming, Programming Languages
Project2: A Simple Distributed Computing Platform (Due at 11:59:59pm on 04/12/2012 (EST))
You are asked to develop a replicator (client) that distributes a large job over a number of computers (a server group) on a single switched LAN (our BU04 lab). In this assignment, a large (simulation) job can be divided into a number of small jobs, each of which can be assigned to one machine from the server group for execution. The execution results of the small jobs can be merged once all of them successfully terminate.
client server1 server2 server3 ...
| | | |
| | | |
| LAN | | |
The client and servers are running Network File System (NFS) so that user files are visible at $HOME directory. You may want to set up the following environment:
• $HOME/replicate.hosts: a list of (server) hostnames which participate in the simulation.
• $HOME/replicate_out: the directory that stores the small job execution result.
The simulation program "hyper_link" (binary) is provided. In this assignment, you don''t need to know or care what "hyper_link" does, and actually it is a computing intensive (CPU demanding) simulator. The command line arguments of "hyper_link" are job# 100000 999 1 2 2 100, where the job number determines the number of small jobs in your simulation. To allow the client to run a large job, the job# should be given in a tuple: start, end, and step. For example, the command "hyper_link 1 100 1 100000 999 1 2 2 100" yields 100 small jobs with the job# starting from 1 to 100. Each small job produces a screen output (see example below) at the end (if finished successfully). Your code needs to redirect the output to a file and save it in $HOME/replicate_out. For example,
./hyper_link 1 100000 999 1 2 2 100
will produce a screen output looks like:
1. The communications between the replicator and servers are achieved through remote procedure calls.
2. A user interface is required for the replicator to control the server. A command line interface will be acceptable. A (working) graphic user interface (GUI) will impress the instructor and earn up to 20 bonus credits. Your interface should at least support the following operations.
o show the current CPU load of a certain server (if the server is active).
o show the current server status (active or inactive).
o stop a certain server.
o restart a certain server.
o show the CPU load (with the mark of hi-threshold) in the real time (for GUI interface only).
3. The replicator has to make sure all small jobs are successfully finished.
o If a server crashes (or not responsive), the running job (not finished yet) will be killed and rescheduled for execution.
o If a server CPU load exceed the preset threshold (the higher threshold), the replicator stops the server (and therefore kills the job).
o The replicate should keep polling the CPU load of the stopped server. Once the load becomes lower than the lower threshold (a preset value), the server should be reactivated to run the jobs.
o The replicator can also stop any server (through user interface) if needed. Once happened, the unfinished job will be killed.
o If a job terminates abnormally (e.g., being killed), the replicator has to reschedule the job execution later.
Create a folder with the name of your Linux account, and copy all source code (better be divided into client and server two subdirectories) files/directories into the created folder. Make sure you have sshed to grail.cba.csuohio.edu, and then type: .
$ turnin -c cis620w -p proj2 your_folder
Posted Date: 3/21/2012 12:39:31 PM | Location : United States
Ask an Expert
Advance operating systems, computer programming, Assignment Help, Ask Question on Advance operating systems, computer programming, Get Answer, Expert's Help, Advance operating systems, computer programming Discussions
Write discussion on Advance operating systems, computer programming
Your posts are moderated
Write your message here..
Design and create a new class, You are to design and create a new class cal...
You are to design and create a new class called SelectCallDataDialog, which opens by clicking browse buttons for selection of ringtones, vibrations or leds. Depending on which th
Create a one to two page html document, Task 1 Think about a Web site...
Task 1 Think about a Web site you would like to work on for Assignment 2. For example, you can do a personal interest site, a site for your favourite nonprofit organization,
New features of visual studio 2008, New Features of Visual Studio 2008 1. L...
New Features of Visual Studio 2008 1. LINQ Support LINQ primarily is the structure of many conventional question employees that allow you to perform with information in a more user
What are the characteristics of a good algorithm, What is an algorithm? Wha...
What is an algorithm? What are the characteristics of a good algorithm? An algorithm is defined as “a step-by-step procedure of accomplishing some task'''' An algorithm may be sh
Write c sharp application to read a data, A number of simple student record...
A number of simple student records are written to a text file. The format of some typical linesshould be - Task (1): Using a text editor, create a file with 10 such reco
Object-oriented languages, Object-oriented languages Languages that sup...
Object-oriented languages Languages that support OOP features can be classified into the following two categories: 1. Object-based programming languages, and 2. O
(l)unix commands, 1. Logon to Linux. 2. Create a directory ...
1. Logon to Linux. 2. Create a directory "Unix" under your home directory. Command(s): …………………………………………. 3. Create four sub-directories bin, conf, docs
Write a program to use a robot to move, Write a program to use a robot to m...
Write a program to use a robot to move the stack of blocks from a source location to a target location, based. Movement of robot arms, picking and dropping, can be controlled usi
Data normalization and schema refinement, What is Data Normalization and Sc...
What is Data Normalization and Schema Refinement? Define briefly..
Shell script for to change & display system prompt and path, Normal 0 ...
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
IT Courses and Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Follow Us |
T & C
Copyright by ExpertsMind IT Educational Pvt. Ltd.