9.2. The OpenMP programming model
OpenMP uses the fork-join model of parallel execution. Although this fork-join model can be useful for solving a variety of problems, it is somewhat tailored for large array-based applications. OpenMP is intended to support programs that will execute correctly both as parallel programs (multiple threads of execution and a full OpenMP support library) and as sequential programs (directives will be ignored and a stub library will be linked).
A program written with the OpenMP C/C++ API begins execution as a single thread of execution called the master thread. The master thread executes in a serial region until the first parallel construct is executed. In the OpenMP C/C++ API, the parallel directive constitutes ...
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