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Full-Text Articles in Physical Sciences and Mathematics
An Efficient Collective Communication Library For Pvm, Chirapol Mathawaphan
An Efficient Collective Communication Library For Pvm, Chirapol Mathawaphan
Masters Theses
PVM enables the use of network of workstations for parallel and distributed computation. PVM provides the message-passing primitives which include those for point-to-point communication and collective communications. The current approaches for the collective communication operations in PVM use algorithms that do not exhibit good performance.
In this thesis, we develop new approaches to improve the performance of collective communication operations in PVM by using shared memory with IP broadcasting and IP multicasting mechanism. We have implemented these approaches and have run extensive tests. This report shows the comparison of the time used by current approaches and our approaches.
A Strategy For Distributed Relational Database Design, Ismail Omar Hababeh
A Strategy For Distributed Relational Database Design, Ismail Omar Hababeh
Masters Theses
This thesis presents a strategy for the fragmentation and allocation of data in a distributed relational database. The strategy introduces a way to fragment and allocate data to accomplish the benefits of allocating each fragment independently for each site. Some fragments may be allocated to multiple sites in order to achieve some constraints such as availability, consistency, and integrity. The strategy is appropriate for different types of computers at various sites connected to a network, with different costs of retrieval, update, and communication.
To increase the system 1/0 performance, sites having similar communication costs are grouped into clusters to which …