what is multiprocessor system and types of multiprocessor sytem

Introduction

• A Multiprocessor system is system that has more than one processor on-board in the computer.They execute independent stream of instructions
• They share System buses.
• They share System clock.
• They share System Memory.
• They perform simultaneous process execution.
• They are Tightly coupled system.
• They can execute different processes at same time.

Models of Multiprocessor System

Symmetric

Asymmetric

model of multiprocessor system

Interconnection Networks of multiprocessor System

Bus:

• low cost
• one cpu-memory conversation at a time
• shared memory

Crossbar Switch:

• high cost.
• low expansion.
• CPU and memory units are connected to switch.

Multistage Network:

• compromise between bus and crossbar switch.
• Consists of many stages of 2*2 crossbar switches
• permits parllel conversations