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

Laplace transforms, There actually isn't all that much to this section. All...

There actually isn't all that much to this section. All we are going to do now is work a quick illustration using Laplace transforms for a 3 rd order differential equation therefo

Random number generator guessing game, The GuessingGame class contains a sk...

The GuessingGame class contains a skeleton for a program to play a guessing game with the user. The program should randomly generate an integer between 1 and 10 and then ask the us

Create a directory, The ?rst task in the project is to develop a sane syste...

The ?rst task in the project is to develop a sane system to store change logs and versions of ?les. The simplest approach is to create a "dot" directory in the location of the ?le

Small code have missing part, #question. /* * * * * * * * * * * * * * * * *...

#question. /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Description: *

Lalr parser - xml table output, LALR Parser: Rule Table - Contains de...

LALR Parser: Rule Table - Contains definitions of production rules within the grammar. Attributes: Count - Number of production rules in the table Child items:

C language, write a program to find the output 1 ...

write a program to find the output 1 1 2 1 1 2 3 2 1 1 2 3 4 3 2 1 1 2 3 2 1 1 2 1 1

Define the syntax of for loop, Define the Syntax of FOR Loop? The unive...

Define the Syntax of FOR Loop? The universal form of this statement is for(initialization;condition;increment/decrement)             { statements;             }

Program that will allow to print grade list of student, We want a program t...

We want a program that will allow us to print a "grade list" of the students in a class. The program should loop, asking for a name, midterm score, and final score. It should th

Explain inheritance and polymorphism in lingo programming, Question: (a...

Question: (a) Explain the concepts of Inheritance and Polymorphism in Lingo programming. (b) Write short descriptions on parent scripts and child objects in Lingo object

Implement a two-dimensional table in prolog, Implement a two-dimensional ta...

Implement a two-dimensional table in Prolog. Your program will contain: 1.  An insert_entry predicate that takes a table, row, column and an entry and inserts the entry at the g

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