Advance operating systems, computer programming, Programming Languages

Assignment Help:
Project2: A Simple Distributed Computing Platform (Due at 11:59:59pm on 04/12/2012 (EST))
Description:
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.
System Architecture:
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:
1:100000:999:2:0.5:1.124571e+00:7.744712e-04:6.245814e-01:6.957320e-04:0.000000e+00:0.000000e+00.
Requirements:
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.
Submission:
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

Related Discussions:- Advance operating systems, computer programming

Created xml document using the css stylesheet, After studying the concept, ...

After studying the concept, terminology, and implementation of CSS stylesheets, create a stylesheet to accompany your solutions to Question 1. A rich collection of styles should be

Write a program that makes a drawing of a skyscraper, 1. Write a program th...

1. Write a program that figures out how long it will take to pay off a credit card by making payments of $10 each month. Take care to avoid infinite loops. (How would a bank preven

Complementary slackness and duality, Consider the following LP problem: ...

Consider the following LP problem: min x 1 +3 x2 +x 3 -x 4 s.t. x 1 +x 2 +x 3 +x 4 ≥ 0 x 1 +x 2 -x 3 -x 4 ≥ 1 x 2 , x 3 ≥ 0 x 1 , x 4 ≤ 0. 1. Unique pr

Write a perl script that accepts two integer arguments, 1. Write a Perl scr...

1. Write a Perl script that accepts exactly 2 integer arguments where the first argument must be less than the second argument. The script will print a comma separated list of inte

Html code to create a web page design , 1.  Develop HTML code to create a W...

1.  Develop HTML code to create a Web page with the red background and title "My First Page" in any other color. 2.  Develop an HTML document with details of your name, telephon

Write a program to handle a book collection, Write a program to handle a bo...

Write a program to handle a book collection. The data on each book might be title, author, publication date, book number and  cataloging details. Allow for adding or deleting books

Visual logic, how much it will cost? i need learn how to make rightsided tr...

how much it will cost? i need learn how to make rightsided triangle in forloop

Shell script to delete all files from system have size zero, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Class a abstract data type, Class a Abstract Data Type: is a template for c...

Class a Abstract Data Type: is a template for creating objects. A class describes a collection of related objects i.e. instances of the classes. Basically classes are user-defined

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd