008. OCR A Level (H046-H446) SLR2 – 1.1 Multi-core & parallel systems
About this video
OCR Specification Reference
AS Level 1.1.2b
A Level 1.1.2c
Modern computers have many ways of increasing their power, two involve using multiple cores and making use of parallel systems, in this video we discuss both approaches.
Key question:
- How does having multiple cores affect the speed of processing?
00:00 Multi-core & parallel systems
00:05 Intro
00:10 What do we mean by a multi-core system?
01:12 Chip Multiprocessors (CMPs)
01:45 Multiple cores
02:10 Cache and inter-core communication
02:23 Limitations of multicore
02:54 What is parallel processing?
03:24 How can parallel processing be achieved?
04:18 Limitations of parallel processing
04:42 Key question
04:54 Going beyond the specification
05:05 Amdahl's law
05:47 Parallel processing vs concurrent processing
06:21 Outro
Last updated: 18.03.26
