Computer processor on a single integrated circuit with two or more separate processing units, called cores, each of which reads and executes program instructions.- Multi-core processor
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Hardware cache used by the central processing unit of a computer to reduce the average cost (time or energy) to access data from the main memory.
Every core of a multi-core processor has a dedicated L1 cache and is usually not shared between the cores.
CPU that implements a form of parallelism called instruction-level parallelism within a single processor.
Each execution unit is not a separate processor (or a core if the processor is a multi-core processor), but an execution resource within a single CPU such as an arithmetic logic unit.
Set of computer programs and associated documentation and data.
, most personal computers, smartphone devices and servers have processors with multiple execution units or multiple processors performing computation together, and computing has become a much more concurrent activity than in the past.
Symmetric multiprocessing or shared-memory multiprocessing (SMP) involves a multiprocessor computer hardware and software architecture where two or more identical processors are connected to a single, shared main memory, have full access to all input and output devices, and are controlled by a single operating system instance that treats all processors equally, reserving none for special purposes.
In the case of multi-core processors, the SMP architecture applies to the cores, treating them as separate processors.
Heterogeneous computing refers to systems that use more than one kind of processor or cores.
Use of two or more central processing units within a single computer system.
There are many variations on this basic theme, and the definition of multiprocessing can vary with context, mostly as a function of how CPUs are defined (multiple cores on one die, multiple dies in one package, multiple packages in one system unit, etc.).
Type of computation in which many calculations or processes are carried out simultaneously.
As power consumption (and consequently heat generation) by computers has become a concern in recent years, parallel computing has become the dominant paradigm in computer architecture, mainly in the form of multi-core processors.
In computer architecture, multithreading is the ability of a central processing unit (CPU) (or a single core in a multi-core processor) to provide multiple threads of execution concurrently, supported by the operating system.
Electronic circuitry that executes instructions comprising a computer program.
Microprocessor chips with multiple CPUs are multi-core processors.
Form of computing in which several computations are executed concurrently—during overlapping time periods—instead of sequentially—with one completing before the next starts.
In parallel computing, execution occurs at the same physical instant: for example, on separate processors of a multi-processor machine, with the goal of speeding up computations—parallel computing is impossible on a (one-core) single processor, as only one computation can occur at any instant (during any single clock cycle).