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It is becoming increasingly important to manage databases as a repository resource and to allow application programs to access this resource in a heterogeneous distributed environment. Data requested by a query are sometimes available in multiple sites such that the query becomes executable in different ways. Under this circumstance, choosing the best(More)
Using a heterogeneous platform has became a common approach to improve performance. This trend leads to critical problems of synchronization and superfluous memory copy construct, thus a memory model can be built to overcome this performance bottleneck via data exchange. Consequently, keeping the benefits of service consolidation while not losing(More)
Developing a parallel program on Chip multi-processors (CMPs) is a critical and difficult issue. To overcome the synchronization obstacles of CMPs, transactional memory (TM) has been proposed as an alternative control concurrency mechanism, instead of using traditional lock synchronization. Unfortunately, TM has led to seven performance pathologies:(More)
How to write a parallel program is a critical issue for Chip multi-processors (CMPs). To overcome the communication and synchronization obstacles of CMPs, transactional memory (TM) has been proposed as an alternative for controlling concurrency mechanism. during the interaction between workload and system. Although this performance issue can be solved by(More)