z/OS V1R13 XL C/C++ September 2012 PTF provides compiler built-in function for programmers to access the transactional memory facilities that are shipped with IBM zEnterprise® EC12 (zEC12) hardware.
Transactional memory is a model for controlling concurrent memory accesses in the scope of parallel programming. In this model, you can designate a block of instructions or statements to be treated atomically. Such a block is called a transaction. For parallel programming, a transaction implementation can be tremendously more efficient... [More]