ITEC 1000 Lecture Notes - Intel Core, Amd Phenom, Beowulf Cluster

• School: York University
• Department: Information Technology
• Course: ITEC 1000
• Professor: All

Document Summary

Itec 1000 winter 2010 peter khaiter. Lecture 11 computer systems and networks mar 22. Multiple cpus: sharing memory and i/o facilities, conflict among the cpus for shared resources. Faster clock speed, buses and circuits: improving technology to design faster cpu circuits and buses. Wider instruction and data paths: wider interface between the cpu and memory allows to fetch more data in a single operation. Faster disk access: smaller discs, more density packed, increased storage, raid: data on different discs, multiple access simultaneously. More and faster memory: reduces the time to access instructions and data. Reasons: increase the processing power of a system, parallel processing. Types of multiprocessor systems: tightly coupled systems, loosely coupled systems. Identical access to programs, data, shared memory, i/o, etc. Easily extends multi-tasking, and redundant program execution. Two ways to configure: master-slave multiprocessing, symmetrical multiprocessing (smp) Master cpu: manages the system, controls all resources and scheduling, assigns tasks to slave cpus.