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About Kinds of Sharing Problems

A data sharing problem happens when two tasks access the same memory location, and the behavior of the program depends on the order of accesses. This group of topics describes two common data access patterns - incidental sharing and independent updates - that result in data sharing problems that are relatively easy to fix. The fixes are described in Problem Solving Strategies.

About Eliminating Incidental Sharing

Sharing problems involving a task and a memory location are incidental if the memory location does not carry information into or out of the task. Therefore, if you replace all uses of the shared memory location in the task with uses of some non-shared memory location, you eliminate the sharing problem without changing the behavior of the program.

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