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  2. Semaphore (programming) - Wikipedia

    en.wikipedia.org/wiki/Semaphore_(programming)

    In computer science, a semaphore is a variable or abstract data type used to control access to a common resource by multiple threads and avoid critical section problems in a concurrent system such as a multitasking operating system.

  3. Lock (computer science) - Wikipedia

    en.wikipedia.org/wiki/Lock_(computer_science)

    Visual C++ provides the synchronize attribute of methods to be synchronized, but this is specific to COM objects in the Windows architecture and Visual C++ compiler. [10] C and C++ can easily access any native operating system locking features. C# provides the lock keyword on a thread to ensure its exclusive access to a resource.

  4. Context switch - Wikipedia

    en.wikipedia.org/wiki/Context_switch

    In computing, a context switch is the process of storing the state of a process or thread, so that it can be restored and resume execution at a later point, and then restoring a different, previously saved, state. [1]

  5. Barrier (computer science) - Wikipedia

    en.wikipedia.org/wiki/Barrier_(computer_science)

    In parallel computing, a barrier is a type of synchronization method. [1] A barrier for a group of threads or processes in the source code means any thread/process must stop at this point and cannot proceed until all other threads/processes reach this barrier.

  6. Multiprocessing - Wikipedia

    en.wikipedia.org/wiki/Multiprocessing

    Multiprocessing is the use of two or more central processing units (CPUs) within a single computer system. [ 1 ] [ 2 ] The term also refers to the ability of a system to support more than one processor or the ability to allocate tasks between them.

  7. Monitor (synchronization) - Wikipedia

    en.wikipedia.org/wiki/Monitor_(synchronization)

    } // Ensure this interrupt can't happen again which would foul up the context switch: systemCall_disableInterrupts (); // Get all of the registers of the currently-running process. // For Program Counter (PC), we will need the instruction location of // the "resume" label below.

  8. Multithreading (computer architecture) - Wikipedia

    en.wikipedia.org/wiki/Multithreading_(computer...

    From the software standpoint, hardware support for multithreading is more visible to software, requiring more changes to both application programs and operating systems than multiprocessing. Hardware techniques used to support multithreading often parallel the software techniques used for computer multitasking. Thread scheduling is also a major ...

  9. OpenMP - Wikipedia

    en.wikipedia.org/wiki/OpenMP

    OpenMP (Open Multi-Processing) is an application programming interface (API) that supports multi-platform shared-memory multiprocessing programming in C, C++, and Fortran, [3] on many platforms, instruction-set architectures and operating systems, including Solaris, AIX, FreeBSD, HP-UX, Linux, macOS, and Windows.