Multiprocessor Systems

Ventajas
1. Mayor rendimiento
  1. Al aumentar la cantidad de procesadores, esperamos hacer más trabajo en menos tiempo
2. Economía de escala
  1. . Los sistemas multiprocesador pueden costar menos que los sistemas de un solo procesador múltiples equivalentes, ya que pueden compartir periféricos, almacenamiento masivo y fuentes de alimentación.
3. Mayor confiabilidad
  1. Si las funciones se pueden distribuir adecuadamente entre varios procesadores, entonces la falla de un procesador no detendrá el sistema, solo lo ralentizará.
graceful degradation.
1. The ability to continue providing service proportional to the level of surviving hardware
Faul tolerant
1. because they can suffer a failure of any single component and still continue operation
Tipos
1. asymmetric
2. multiprocessing
CORE AND MULTICORE
1. A recent trend in CPU design is to include multiple computing cores on a single chip. Such multiprocessor systems are termed multicore. They can be more efficient than multiple chips with single cores because on-chip communication is faster than between-chip communication.
Estructura de operación
1. 1. The idea is as follows: The operating system keeps several jobs in memory simultaneously (Figure 1.9). Since, in general, main memory is too small to accommodate all jobs, the jobs are kept initially on the disk in the job pool.

Resource summary

	Created by Leonardo Mata Mora almost 7 years ago