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Abstract

To develop composable parallel programs easily and get high performance, many transactional memory systems have been proposed to solve the synchronization problem of multicore processors. Transactional memory can be implemented in hardware, software, or a hybrid of the two. There are many hot topics in current transactional memory systems. In this study, we give a review of the current transactional memory systems for multicore processors according to the following aspects: version management, conflict detection and contention management. Then we separately present exclusive research area for hardware and software transactional memory. Finally, we separately discuss research challenges for software and hardware transactional memory.