An efficient logging scheme for lazy release consistent distributed shared memory systems

We propose a low-overhead logging scheme for the distributed shared memory system based on the lazy release consistent memory model. In the proposed scheme, stable logging is performed when a lock grant causes an actual dependency relation between the processes, which significantly reduces the logging frequency. Also, instead of making a stable log of the accessed data items, a process logs stably only some access information, and the accessed data items are saved in the volatile log. For the recovery from a failure, the correct version of the accessed data items can be effectively traced by using the logged access information. As a result, the amount of logged information is also reduced.