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Concept
Multiprocessor system on a chip
Résumé
A multiprocessor system on a chip ( (), ˌɛmˌpiː'sɒk or ˌɛmˌpiːˌɛsˌoʊˈsiː ) is a system on a chip (SoC) which includes multiple microprocessors. As such, it is a multi-core system on a chip.
MPSoCs are usually targeted for embedded applications. It is used by platforms that contain multiple, usually heterogeneous, processing elements with specific functionalities reflecting the need of the expected application domain, a memory hierarchy and I/O components. All these components are linked to each other by an on-chip interconnect, such as buses and Networks on chip (NoCs). These architectures meet the performance needs of multimedia applications, telecommunication architectures, network security and other application domains while limiting the power consumption through the use of specialised processing elements and architecture.
System on a chip#Structure
A multiprocessor system on a chip must by definition have multiple processor cores. MPSoCs often contain multiple logically distinct processor modules as well. Additionally, MPSoCs typically contain:
Memory blocks, often using scratchpad RAM and direct memory access
timing sources to generate clock signals to control execution of SoC functions
crystal oscillators and phase-locked loops are popular clock generators.
peripherals including counters and power-on reset generators
external interfaces, typically for communication protocols
These are often based upon industry standards such as USB, FireWire, Ethernet, USART, SPI, HDMI, I2C, etc.
each interface is typically to one given core or logical unit on the MPSoC
a network on a chip (NoC) to communicate and share data between the processors and functional units of the MPSoC
MPSoCs are used when microcontrollers or systems-on-chip must have multiprocessing capabilities. This can include smartphone devices, embedded systems, digital signal processors and other various applications.
This section is a short list of multiprocessor systems-on-chip.
Cell processor
Adapteva's Epiphany architecture
Xilinx Zynq UltraScale
MPSoC research and development often compares many options.
Source officielle
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Proximité ontologique
Cours associés (2)
CS-471: Advanced multiprocessor architecture
Multiprocessors are now the defacto building blocks for all computer systems. This course will build upon the basic concepts offered in Computer Architecture I to cover the architecture and organizati
CS-472: Design technologies for integrated systems
Hardware compilation is the process of transforming specialized hardware description languages into circuit descriptions, which are iteratively refined, detailed and optimized. The course presents a
Séances de cours associées (1)
Multiprocesseurs : aperçu et défis
Couvre l'évolution et les défis des multiprocesseurs, en mettant l'accent sur l'efficacité énergétique, la programmation parallèle, la cohérence du cache et le rôle des GPU.
Concepts associés (5)
Calcul hétérogène
Heterogeneous computing refers to systems that use more than one kind of processor or core. These systems gain performance or energy efficiency not just by adding the same type of processors, but by adding dissimilar coprocessors, usually incorporating specialized processing capabilities to handle particular tasks. Usually heterogeneity in the context of computing referred to different instruction-set architectures (ISA), where the main processor has one and other processors have another - usually a very different - architecture (maybe more than one), not just a different microarchitecture (floating point number processing is a special case of this - not usually referred to as heterogeneous).
Zero ASIC
Zero ASIC Corporation, formerly Adapteva, Inc., is a fabless semiconductor company focusing on low power many core microprocessor design. The company was the second company to announce a design with 1,000 specialized processing cores on a single integrated circuit. Adapteva was founded in 2008 with the goal of bringing a ten times advancement in floating-point performance per watt for the mobile device market.
Xilinx
thumb|FPGA Xilinx Spartan-3 (référence XC3S400) contenant portes logiques Xilinx (nom complet Xilinx, Inc.) est une entreprise américaine de semi-conducteurs. Inventeur du FPGA, Xilinx fait partie des plus grandes entreprises spécialisées dans le développement et la commercialisation de composants logiques programmables, et des services associés tels que les logiciels de CAO électroniques, blocs de propriété intellectuelle réutilisables et formation. Le , AMD annonce son intention de racheter Xilinx.