A Comparative Analysis of Performance of Shared Memory Cluster Computing Interconnection Systems

Table 1

Summary of performance comparison of cluster computing interconnection systems.

Parameters	SMC	DSMC	HSMC	VSMC
Network architecture	Intra- and intercluster bus	Interconnection network scheme	Intraconnection network hierarchical bus	Virtual network scheme
Memory access	All nodes access global shared memory with local cache for each	Each node has local memory with large global distributed shared memory	All nodes access global shared memory with hierarchical cache for each	Each node has local memory with large distributed and virtual memory
Communication	Explicit	Implicit	Explicit	Implicit
Data sharing	Fine grain between processes	Coarse grain process migration	Fine grain between processes	Coarse grain process migration
Abstraction	No abstraction	Simple abstraction	No abstraction	Full abstraction
Availability	High	Higher	Less	Same as that of physical cluster
Architecture	Communication on the fly	Distributed data structure in linked base type	Hierarchical memory	Virtual machine monitor with virtual cluster
Load balancing	Centralized dynamic load balancing	Distributed dynamic load balancing	Hierarchical load balancing	Virtual cluster server centralized dynamic load balancing
Fault tolerance	Shared memory checkpointing	Time based coordinated checkpointing	Hierarchical checkpointing	Replicated and distributed checkpointing
Scalability	Limited scalability	Highly scalable	Hard to scale	Good scalability
Latency	Lower	Higher	Low	High
Bandwidth	Higher	Lower	High	Low
Programming	Easier to program	Easy to program	Critical to program	Hard to program
End user	Difficult to use	Easier to use	Hard to design and use	Easy to use
Execution	Fastest	Fast	Faster	Moderate fast
Cost	Cheapest	Moderate	Cheap	High