Implementing a Linux Cluster for Efficient Computations

8/3/2019 Implementing a Linux Cluster for Efficient Computations

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A computer cluster is a group of loosely

coupled computers that work together

closely so that in many respects they can

be viewed as though they are a singlecomputer.

Clusters are usually deployed to improve

performance and/or availability over that

provided by a single computer, while

typically being much more cost-effective

than single computers of comparable

speed or availability.


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Many enterprises are now choosing to

invest their IT budgets in computer clusters

networks of high-powered, low-cost

desktop computers that provide an

attractive alternative to mainframe

computers.


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High Availability Clusters - HA Clusters are

designed to ensure constant access to

service applications.

Load-balancing Clusters - Load-balancing

clusters operate by routing all work through

one or more load-balancing front-end

nodes, which then distribute the workloadefficiently between the remaining active

nodes.


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High-performance Clusters - HPC clusters

are designed to exploit the parallel

processing power of multiple nodes. They

are most commonly used to perform

functions that require nodes to

communicate as they perform their tasks

for instance, when calculating results fromone node will affect future results from

another.


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We will use Waterfall Model

Requirements specification

Software Design Integration

Testing


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1. The time taken by the cluster to produce theoutput should be much less as compared to a singlenode of the cluster.

2. The cluster should be able to work properly in everynetwork i.e. wireless LAN, LAN.

3. There should be no interruption in services. 4. The interface should be easy to use. 5. The cluster should be able to modify/update at

later stages. 6. Nodes should be added/removed easily from the

cluster at any stage. 7. Effective computer security should be

accomplished so as to ensure the safety of the data.


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To achieve Clustering in Linux, a solution

should meet the following expectations:

The cluster can be used in a network where wehave to increase the computational power.

The performance of a cluster should be morethan a single node of that cluster.

The cluster should be failsafe i.e. if a node in thecluster fails then the entire network should not godown.


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1. Improving performance.

2. Cost-effective solution to mainframe

computers. 3. Scalability.

4. Availability.


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Linux : We chose Linux as the OS on which we willbe working because Linux provides an opensource environment which provides the authority to

the user to change/modify the kernel according tohis needs.

C/C++


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We have studied the basics of LINUX.

Topics covered :

Basics about files and directories Job scheduling (crontab)

Package installation

Partitioning

Sudo

RAID


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Creating and deleting files anddirectories

Setting permissions on files anddirectories

Compressing and decompressing

Access control list


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What is job scheduling?

Why we need scheduling?

How to implement crontab


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How to install a package by RPM

Difference between RPM and YUM

How to install a package by YUM


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Why partitioning is important?

How to create a disk partition

What is swap partition? How to create a swap partition


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What is a difference between super userand normal user?

How to assign rights of super user to anormal user


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What is RAID ?

What is the need of RAID?

What is RAID1? How to implement RAID1?


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Studying about Clusters and how to

implement it using the book

Linux Clustering: Building and Maintaining LinuxClusters

And different research papers.


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THANK YOU

Documents

Implementing a Linux Cluster for Efficient Computations