16-07-2014, 09:50 AM
Classification
of Cluster Computer
Cluster Computer.ppt (Size: 386 KB / Downloads: 10)
Clusters Classification..1
Based on Focus (in Market)
High Performance (HP) Clusters
Grand Challenging Applications
High Availability (HA) Clusters
Mission Critical applications
Based on Workstation/PC Ownership
Dedicated Clusters
Dedicated Clusters
Non-dedicated clusters
Adaptive parallel computing
Also called Communal multiprocessing
Group Clusters (#nodes: 2-99)
(a set of dedicated/non-dedicated computers - mainly connected by SAN like Myrinet)
Departmental Clusters (#nodes: 99-999)
Organizational Clusters (#nodes: many 100s)
(using ATMs Net)
Internet-wide Clusters=Global Clusters: (#nodes: 1000s to many millions)
Metacomputing
Web-based Computing
Agent Based Computing
Java plays a major in web and agent based computing
What is Cluster Middleware
An interface between user applications and cluster hardware and OS platform.
Middleware packages support each other at the management, programming, and implementation levels.
Middleware Layers:
SSI Layer
Availability Layer: It enables the cluster services of
Checkpointing, Automatic Failover, recovery from failure,
fault-tolerant operating among all cluster nodes
What is Single System Image (SSI)
A single system image is the illusion, created by software or hardware, that a collection of computing elements appear as a single computing resource.
SSI makes the cluster appear like a single machine to the user, to applications, and to the network.
A cluster without a SSI is not a cluster
Conclusions
Clusters are promising..
Solve parallel processing paradox
Offer incremental growth and matches with funding pattern.
New trends in hardware and software technologies are likely to make clusters more promising..so that
Clusters based supercomputers can be seen everywhere!