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

Genetic diseases, Genetic Diseases Problem Description Many human di...

Genetic Diseases Problem Description Many human diseases could be controlled by the knowledge of the gene's structure and pattern. The human gene could be represented by fou

Shell script to compare that given two files are same or not, Normal 0 ...

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

Shell script toconvert all lowercase to uppercase characters, Normal 0 ...

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

Non empty string - minimal unique substring, A non-empty string is called a...

A non-empty string is called a minimal unique substring of s if and only if it satisfies: (i) α occurs exactly once in s (uniqueness), (ii) all proper prefixes of occur at le

Arithmetic involving matrices, We next require taking a look at arithmetic ...

We next require taking a look at arithmetic involving matrices. We'll begin with addition and subtraction of two matrices. Therefore, assume that we have two n x m matrices, which

Silver light uses wpf to provide included web handles, Silver light uses WP...

Silver light uses WPF to provide included web handles Microsoft Technologies Silverlight uses WPF to provide included web handles similar to Adobe Display, but with more focus on a

Object-oriented programming paradigm, Object-oriented programming paradigm ...

Object-oriented programming paradigm Object  Oriented  Programming  is  an  aproach  in  which  a  program  is  viewed  as  a  dynamic  network  of collaborating objects, where

Describe the term inter-process communication, UNIX Operating System 1....

UNIX Operating System 1. Explain all the layers present in a UNIX Architecture? List and explain each of them. 2. Describe the term Inter-Process Communication. What are var

Programming code for supermarket software , The software development team i...

The software development team identified the following classes based on the analysis of given requirements: Product, Employee, ProductList, Supplier. 1.  Identify the relationsh

Write script to clear the variables in the workspace, Write a script called...

Write a script called 'prob2.m' that asks the user if they wish to clear the variables in the workspace. If the user responds with the strings 'y' or 'yes' then the workspace shoul

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