Difference between Grid computing and Cluster computing
A Computer Cluster is a local network of two or more homogeneous computers.A computation process on such a computer network i.e. cluster is called Cluster Computing.
Grid Computing can be defined as a network of homogeneous or heterogeneous computers working together over a long distance to perform a task that would rather be difficult for a single machine.
Difference between Cluster and Grid Computing:
|Nodes must be homogeneous i.e. they should have same type of hardware and operating system.
||Nodes may have different Operating systems and hardwares. Machines can be homogeneous or heterogeneous.
|Computers in a cluster are dedicated to the same work and perform no other task.
||Computers in a grid contribute their unused processing resources to the grid computing network.
|Computers are located close to each other.
||Computers may be located at a huge distance from one another.
|Computers are connected by a high speed local area network bus.
||Computers are connected using a low speed bus or the internet.
|Computers are connected in a centralized network topology.
||Computers are connected in a distributed or de-centralized network topology.
|Scheduling is controlled by a central server.
||It may have servers, but mostly each node behaves independently.
|Whole system has a centralized resource manager.
||Every node manages it’s resources independently.
|Whole system functions as a single system.
||Every node is autonomous, and anyone can opt out anytime.
|Cluster computing is used in areas such as WebLogic Application Servers, Databases, etc.
||Grid computing is used in areas such as predictive modeling, Automation, simulations, etc.
|It has Centralized Resource management.
||It has Distributed Resource Management.
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