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- Multi-core_processor abstract "A multi-core processor is a single computing component with two or more independent actual central processing units (called "cores"), which are the units that read and execute program instructions. The instructions are ordinary CPU instructions such as add, move data, and branch, but the multiple cores can run multiple instructions at the same time, increasing overall speed for programs amenable to parallel computing. Manufacturers typically integrate the cores onto a single integrated circuit die (known as a chip multiprocessor or CMP), or onto multiple dies in a single chip package. Processors were originally developed with only one core. Multi-core processors were developed in the early 2000s by Intel, AMD and others. Multicore processors may have two cores (dual-core CPUs, for example AMD Phenom II X2 and Intel Core Duo), four cores (quad-core CPUs, for example AMD Phenom II X4, Intel's i5 and i7 processors), six cores (hexa-core CPUs, for example AMD Phenom II X6 and Intel Core i7 Extreme Edition 980X), eight cores (octo-core CPUs, for example Intel Xeon E7-2820 and AMD FX-8350), ten cores (for example, Intel Xeon E7-2850), or more. A multi-core processor implements multiprocessing in a single physical package. Designers may couple cores in a multi-core device tightly or loosely. For example, cores may or may not share caches, and they may implement message passing or shared memory inter-core communication methods. Common network topologies to interconnect cores include bus, ring, two-dimensional mesh, and crossbar. Homogeneous multi-core systems include only identical cores, heterogeneous multi-core systems have cores that are not identical. Just as with single-processor systems, cores in multi-core systems may implement architectures such as superscalar, VLIW, vector processing, SIMD, or multithreading.Multi-core processors are widely used across many application domains including general-purpose, embedded, network, digital signal processing (DSP), and graphics.The improvement in performance gained by the use of a multi-core processor depends very much on the software algorithms used and their implementation. In particular, possible gains are limited by the fraction of the software that can be run in parallel simultaneously on multiple cores; this effect is described by Amdahl's law. In the best case, so-called embarrassingly parallel problems may realize speedup factors near the number of cores, or even more if the problem is split up enough to fit within each core's cache(s), avoiding use of much slower main system memory. Most applications, however, are not accelerated so much unless programmers invest a prohibitive amount of effort in re-factoring the whole problem. The parallelization of software is a significant ongoing topic of research.".
- Multi-core_processor thumbnail Dual_Core_Generic.svg?width=300.
- Multi-core_processor wikiPageExternalLink embedded-moves-multicore.
- Multi-core_processor wikiPageExternalLink raw.
- Multi-core_processor wikiPageExternalLink 6912.
- Multi-core_processor wikiPageExternalLink wavescalar.cs.washington.edu.
- Multi-core_processor wikiPageExternalLink www.multicorezone.com.
- Multi-core_processor wikiPageExternalLink www.openhmpp.org.
- Multi-core_processor wikiPageExternalLink www.streamprocessors.com.
- Multi-core_processor wikiPageID "3503207".
- Multi-core_processor wikiPageRevisionID "605856730".
- Multi-core_processor hasPhotoCollection Multi-core_processor.
- Multi-core_processor subject Category:Computer_architecture.
- Multi-core_processor subject Category:Digital_signal_processing.
- Multi-core_processor subject Category:Flynn's_taxonomy.
- Multi-core_processor subject Category:Microprocessors.
- Multi-core_processor subject Category:Parallel_computing.
- Multi-core_processor type Artifact100021939.
- Multi-core_processor type Chip103020034.
- Multi-core_processor type Conductor103088707.
- Multi-core_processor type Device103183080.
- Multi-core_processor type Instrumentality103575240.
- Multi-core_processor type Microprocessor103760310.
- Multi-core_processor type Microprocessors.
- Multi-core_processor type Object100002684.
- Multi-core_processor type PhysicalEntity100001930.
- Multi-core_processor type SemiconductorDevice104171831.
- Multi-core_processor type Whole100003553.
- Multi-core_processor comment "A multi-core processor is a single computing component with two or more independent actual central processing units (called "cores"), which are the units that read and execute program instructions. The instructions are ordinary CPU instructions such as add, move data, and branch, but the multiple cores can run multiple instructions at the same time, increasing overall speed for programs amenable to parallel computing.".
- Multi-core_processor label "Mehrkernprozessor".
- Multi-core_processor label "Microprocesseur multi-cœur".
- Multi-core_processor label "Multi core".
- Multi-core_processor label "Multi-core processor".
- Multi-core_processor label "Multikernprocessor".
- Multi-core_processor label "Multinúcleo".
- Multi-core_processor label "Procesador multinúcleo".
- Multi-core_processor label "Procesor wielordzeniowy".
- Multi-core_processor label "Многоядерный процессор".
- Multi-core_processor label "معالج متعدد اللب".
- Multi-core_processor label "マルチコア".
- Multi-core_processor label "多核心處理器".
- Multi-core_processor sameAs Mehrkernprozessor.
- Multi-core_processor sameAs Procesador_multinúcleo.
- Multi-core_processor sameAs Microprocesseur_multi-cœur.
- Multi-core_processor sameAs Multi_core.
- Multi-core_processor sameAs マルチコア.
- Multi-core_processor sameAs 멀티_코어.
- Multi-core_processor sameAs Multikernprocessor.
- Multi-core_processor sameAs Procesor_wielordzeniowy.
- Multi-core_processor sameAs Multinúcleo.
- Multi-core_processor sameAs m.09h1l3.
- Multi-core_processor sameAs Q555032.
- Multi-core_processor sameAs Q555032.
- Multi-core_processor sameAs Multi-core_processor.
- Multi-core_processor wasDerivedFrom Multi-core_processor?oldid=605856730.
- Multi-core_processor depiction Dual_Core_Generic.svg.
- Multi-core_processor isPrimaryTopicOf Multi-core_processor.