- published: 21 Sep 2013
- views: 5116
A multi-core processor is a single computing component with two or more independent actual 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. In the mid 1980s Rockwell International manufactured versions of the 6502 with two 6502 cores on one chip as the R65C00, R65C21, and R65C29, sharing the chip's pins on alternate clock phases. Other multi-core processors were developed in the early 2000s by Intel, AMD and others.
Multi-core processors may have two cores (dual-core CPUs, for example, AMD Phenom II X2 and Intel Core Duo), three cores (tri-core CPUs, for example, AMD Phenom II X3), 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 (octa-core CPUs, for example, Intel Xeon E7-2820 and AMD FX-8350), ten cores (deca-core CPUs, for example, Intel Xeon E7-2850), or more.
Lecture 4: Multi-Core Processors Lecturer: Prof. Onur Mutlu (http://users.ece.cmu.edu/~omutlu/) Date: September 14, 2012. Lecture 4 slides (pdf): http://www.ece.cmu.edu/~ece742/lib/exe/fetch.php?media=onur-18-742-fall12-lecture4-multicore-i-afterlecture.pdf Lecture 4 slides (ppt): http://www.ece.cmu.edu/~ece742/doku,php?=lectures Course webpage: http://www.ece.cmu.edu/~ece742/doku.php Lecture materials: http://www.ece.cmu.edu/~ece742/doku.php?=lectures
Understanding how single / dual / multi core processor CPU work and which is ideal processor for you bcoz it's not like if you have a quad core processor you will get 400% performance compared to a single core processor all the time. http://www.tech2buzz.com
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 ...
A multi-core processor is a single computing component with two or more independent actual central processing units , 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 , or onto multiple dies in a single chip package. This video targeted to blind users. Attribution: Article text available under CC-BY-SA Public domain image source in video
Multicore CPU architecture is discussed in this video. The evolution from single core to multi-core, the internal organization, cache coherence problems are explained. Parallel processing application design that can utilize multiple cores is covered. This video is part of the computer architecture video series. Visit us @ www.opengyan.com or @ www.facebook.com/opengyan
Hyper Threading Vs Dual Core / Multi-Core is probably more about price than performance. Having Both is always the best, and typically if you have a choice it is between 4 real cores or 8. I didn't say it in the video, but if you had the choice between 1 core with HyperTheading and 2 cores without. You should get the Dual Core (2 core) but most of the time you won't be presented that choice so I talked about i5 and i7 with 4 cores with and with out hyper-threading
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Andy and Sean break out pudding and blenders to explain how the latest generation of processors double up their work. - Andy's Famous Food Demo -showing the workings of modern core processors. - IBM had a dual-core chip in 2000, but dual-core didn't hit the consumer desktop until 2004. - Core- tiny di on the processor chip iself that will actully do the work. - Hyperthreading- takes the single processor that you had before and actully splits up the tasks into two virtul processors. So when one is doing a specific task the other virtul processor does the other task. Both "threads" share the same cache and transistors. - Dual-Core- features two sets of transistors and cache, keeping the cores seperated. Each core is sending and recieving seperate data and performing seperate tasks, thus...
Source - http://serious-science.org/videos/890 MIT Prof. Anant Agarwal on parallel computing, problems of processors' communication, and research funding
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[ DUNDEE ]
In parti, 3 cuori, 6 mani, 6 occhi, 6 gambe, 3 matti,
Compatti esaltati sui banchi scriviamo parole che vanno distanti,
Emani calore le mani più in aria se vieni a sto party Dundee,
Io scrivo parole ho la mano sul cuore ci metto passione, Pasqui,
Io scrivo parole ho la mano sul cuore ci metto passione, Marco,
Assembla campioni, mischia con cura, senti sti suoni in cambio,
Tira su le mani in alto se siamo sul palco,
Son metriche lettere elettriche le dedico a chi sta al mio fianco,
10 sulle tue mani gli altri sono solo squali,
letali animali spietati che come pugnali ti fanno del male, e poi,
scende il morale, ciò che puoi fare, scegliere e spingere, liriche,
sopra dei ritmi, che trovano limiti, solo se non ci vuoi provare,
qui, qui cosa trovi, sai cosa trovi, sono vagoni, di rime a colori,
foto ricordo di giorni vissute col cuore e passione di fuori,
6 mani, 6 braccia, 6 gambe, 3 teste, si muovono su questi suoni,
la musica carica l’anima, ora basta che ti muovi.
[ CHORUS ]
Ritmo, musica, voci, campioni, parole suoni sogni sono solo illusioni,
Marco, Pasqui, Dundee, 3 nomi, l’hip hop come veicolo per 1000 direzioni,
Ritmo, musica, voci, campioni, parole suoni sogni sono solo illusioni,
Marco, Pasqui, Dundee, 3 nomi, l’hip hop come veicolo per 1000 direzioni,
[ PASQUI ]
Lugano ci siamo la mano sul petto lo sguardo più forte deciso,
C’è Pasqui sul micro con dundee più Marco gl’infami non c’hanno diviso,
T’invito all’ascolto di un suono profondo leggero sincero e pulito,
Ti leggo il racconto di un mondo malato un sistema piegato impazzito,
Noi restiamo fuori da politica e partito,
Perchè tanto chi ci ascolta non è un povero fallito,
Chi ha preso la mira respira, non mi ha mai colpito,
Chi vuole azzittirmi continua, ma non c’è mai riuscino,
Il mio nome lo spingo convinto e difendo ciò per cui ho lottato,
Qui chi mi disperzza il culo me lo ha già leccato,
Pasqui domani ti chiamo, per un tot non ci sentiamo,
Riguardo rapporti già morti, giuro in fondo ci speravo,
Chiedimi perchè perchè di loro non mi fido,
Io sfido un amico che stimo, se dice che lo invidio,
Ad occhi chiusi affronto un mondo cinico e spietato,