CAR-STM

Abstract

Transactional memory (TM) is a key concurrent programming abstraction. Several software-based transactional memory (STM) implementations have been developed in recent years. All STM implementations must guarantee transaction atomicity but different STM implementations may provide different progress guarantees. In order to ensure progress, an STM implementation must resolve transaction conflicts. This is done either by the implementation itself or by delegating conflict resolution to a separate contention manager module that tries to resolve transaction collisions once they are detected.