A Simple Distributed Computing Platform , Programming Languages

Assignment Help:
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:- A Simple Distributed Computing Platform

Write a program to create map function, Given a list of numbers, say my ...

Given a list of numbers, say my @input_numbers = (1, 1, 3, 5, 8, 13, 21, 34, 55, 89, 144); write a program map1.pl that will use the function map (a) to produce a list of

Selection structure, Name : Jaya Malathy IC No : 99011460923 Quiz 1 : 20....

Name : Jaya Malathy IC No : 99011460923 Quiz 1 : 20.5 Quiz 2 : 22.5 Quiz 3 40.5 Total marks = 83.5 Name IC No Quiz1 Quiz2 Quiz3 Grade --- ---- ---- ---- ---- ---- Jaya 990

Visual Basic 2010 Karate Payments MDI Application, The following are requir...

The following are required for this lesson: Complete the Project "Adding New Payments," which is the Karate Payments that includes the Adding New Payments, Deleting Payments,

Language processors, explain steps of program execution in language process...

explain steps of program execution in language processors

Pop game application , In this exercise you will develop a small 'Pop Game'...

In this exercise you will develop a small 'Pop Game' in which the user will "pop" shapes that are drawn on the screen. The game will be time based, showing a shot clock at the top

Matlab, want to do an image-mean. but image is and mean is so an error ...

want to do an image-mean. but image is and mean is so an error showing Error using ==> minus Number of array dimensions must match for binary array op. wat to do?

Mobile application in android platform phones, Recent problems in finishing...

Recent problems in finishing implementation: This mobile application is built with Sencha Touch framework. Source code is attached in this zip package. The daily rest calc

How will you add styles to a document, Question 1 How will you add styles ...

Question 1 How will you add styles to a document? Question2 How will you view XML in different ways? Question 3 Explain various file handling mechanism available in PERL

Read Multiple Text Files, How to read datasets in multiple text files in an...

How to read datasets in multiple text files in an non interactive program?

Selfcare project - strut frame work, Selfcare Project:   Technology U...

Selfcare Project:   Technology Used Strut Frame work, WAS 5.1, WPS 6.0, DB2, AJAX, Eclipse, Rational Application Developer 6 and  DB2 Selfcare is a big umbrella under whic

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