CS603(A) Advanced Computer Architecture Unit 1 study material for RGPV CSE 6th Semester. This unit covers Flynn’s Classification, parallel computer models, multiprocessors, multicomputers, SIMD, MIMD, dependence, scheduling and interconnection networks.
Unit 1 gives the foundation of parallel computer architecture. It explains how computers are classified based on instruction and data streams, how parallel systems improve performance, and how processors communicate using interconnection networks.
Understand SISD, SIMD, MISD and MIMD computer systems with examples.
Study multiprocessors, multicomputers, SIMD computers and MIMD computers.
Learn bus systems, crossbar switch, multiport memory and multistage networks.
Complete syllabus-based topics of ACA Unit 1.
Classification of computer systems based on instruction stream and data stream: SISD, SIMD, MISD and MIMD.
Important system parameters that affect computer performance such as speed, throughput, latency and parallelism.
Basic models of parallel computers used to execute multiple tasks at the same time.
Architecture, working and comparison of multiprocessor and multicomputer systems.
Single Instruction Multiple Data systems used for vector and array processing.
Multiple Instruction Multiple Data systems used in modern parallel computing environments.
Concept of dependency between instructions, data and shared resources in parallel execution.
Parallelism supported by processor hardware and parallelism created through software techniques.
Breaking programs into smaller parallel tasks and scheduling them for execution.
Granularity of parallel tasks and delay involved in communication or execution.
Different execution models used in parallel computer systems.
Static and dynamic interconnection networks including bus systems, crossbar switch, multiport memory and multistage networks.
These questions are useful for 7 marks and 14 marks answers in RGPV exams.
High-priority topics from ACA Unit 1 for RGPV exam preparation.
| Topic | Asked In | Question Pattern | Importance |
|---|---|---|---|
| Flynn’s Classification | May 2024, June 2025 | Explain with examples / performance evaluation | ⭐⭐⭐⭐⭐ |
| Multiprocessor vs Multicomputer | June 2025 | Comparison based on architecture and use cases | ⭐⭐⭐⭐⭐ |
| Fine-Grained and Coarse-Grained Parallelism | May 2024 | Differentiate and explain latency | ⭐⭐⭐⭐ |
| Static Interconnection Networks | May 2024 | Mesh, tree, hypercube comparison | ⭐⭐⭐⭐ |
Flynn’s Classification is a method of classifying computer architectures based on the number of instruction streams and data streams.
Flynn’s classification, SIMD, MIMD and interconnection networks are highly important for exams.
SIMD stands for Single Instruction Multiple Data. In this architecture, one instruction operates on multiple data items at the same time.
MIMD stands for Multiple Instruction Multiple Data. In this architecture, multiple processors execute different instructions on different data.
Flynn’s Classification, SIMD, MIMD and interconnection networks are commonly asked in RGPV exams.
Parallel architecture, multiprocessors and interconnection networks are useful in computer architecture interviews.
This unit builds the base for pipeline processors, cache coherence, vector processing and parallel programming.