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Multi Core Architecture Advantages And Disadvantages

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Multi-core architecture

1. Introduction

when a processor has many (two or more ) processing units , these units are called (cores ) ,cores are units which are responsible for reading and running the program instructions , multi-core processor can execute many of these instructions such as : subtract , jump , add and branch ,at the same time , this lead to improve the speed of running the programs which are adjustable for parallel computing .

2. Objectives and advantages

multi-core technology concept is fundamentally based on the possibility of parallel computing , which lead to significantly …show more content…

Also, the ability of multi-core processors to increase application performance depends on the use of multiple threads within applications. The situation is improving: for example the Valve Corporation's Source engine, offers multi-core support, and Crytek has developed similar technologies for CryEngine 2, which powers their game, Crysis. Emergent Game Technologies' Gamebryo engine includes their Floodgate technology which simplifies multi-core development across game platforms. But in the case of single-threaded application, multi-core processors are useless. As the application will use only one processors and all the rest of processors will in idle …show more content…

Some detail explanations

The CPU (central processing unit) in the computer is responsible for the computational work such as :running the programs ,but in the one cycle CPU- processor only one task can be performed at a time , while having more than a CPU make it applicable to run more than one single program at a single time. before multi-core and hyper threading , additional processing power have been added to the computer by adding additional CPU's so the motherboard needed additional CPU socket to connect the CPU's to it a additional hardware resources to connect the CPU to the RAM which lead to a lot of overhead , also communicating the CPU's which each other result in additional latencies and consuming more power.

the need of bringing a parallel computation to PC's was then arise ,so Intel introduced the hyper threading, by using hyper threading a single physical CPU is appear to the operating system as two logical CPU's ,hyper- threading allow the two (logical ) CPU's to share the single execution resources ,for example : if one virtual CPU is waited or stalled the other logical CPU can be allowed to gain its execution resources ,this can help in speeding up the system

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