Translations:Pthreads/2/en

As one of the earliest forms of parallelization, pthreads have also served as the basis for later approaches to shared memory parallelization like OpenMP and can be thought of as forming a toolkit of threading primitives that permit the most general and low-level parallelization, at the price of sacrificing much of the simplicity and ease of use of a high level API like OpenMP. The essential model for pthreads is the dynamic spawning of lightweight sub-processes (threads) that asynchronously carry out operations and then are extinguished by rejoining the program's master process. As all the threads of a program reside in the same memory space, sharing data among them through global variables isn't difficult in comparison with a distributed approach like MPI but any modifications of this shared data have to be managed with care to avoid race conditions.