| Summary: | Challenges in the research and development of uniprocessors have led to the rise of multi-cores. However, multi-cores introduce new challenges to software development: applications will need to be developed using concurrent programming techniques and highly scalable to improve performance on successive generations of multi-cores, i.e. as the number of cores increases. Traditionally concurrent programming has employed locks to safeguard concurrent access to shared data, but these are known to be challenging to use, and only a minority of developers have the expertise to write correct, let alone highly scalable, lock-based code.
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