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Indian Institute of Technology Guwahati

Parallel Computer Architecture

Indian Institute of Technology Guwahati and NPTEL via Swayam

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Overview

ABOUT THE COURSE: With the emergence of application domains requiring large data processing as well as faster compute performance, parallel computing has become a critical component. This involves the use of multi-core processors as well as tightly integrated clusters of PCs and workstations. The most exciting development is the convergence of traditionally disparate approaches of shared memory, message passing and data driven computing onto the same platformAs the parallel applications communicate with each other using sharing data; it is important to correctly manage the shared data within the memory hierarchy to avoid inconsistency. Here, we need to understand the mechanisms used for data access, communication and coordination of work and its correct implementation.This course will introduce the eld of parallel architectures and discuss in-depth shared memory management for parallel architectures. We will also learn about the interconnection topologies and routing methods which are important for connection and communication of the multiple cores executing the parallel applications. The course will conclude with overview of various parallel architectures and on-going research directions.INTENDED AUDIENCE: Final year UG as well as PGPREREQUISITES: Final year undergraduate as well as post-graduate students in the disciplines of CSE, IT, CS, ECE, EEE, etc. Can benet from this course. A basic knowledge in Computer Organisation is sucient to take this subject.INDUSTRY SUPPORT: Intel, Micron, AMD, IBM, NVIDIA, HP, Samsung, etc.

Syllabus

Week 1 :Introduction to Parallel Architectures
Week 2 :Memory Hierarchy-Cache and Virtual memory
Week 3 :Overview of Cache coherence, Coherence Protocols- Snooping, Directory based protocols, VI, MSI, MESI
Week 4 :Dragon protocol and Correctness of coherence protocols- Types of cache misses, update vs invalidate protocol
Week 5 :Bus based shared memory systems: Snooping coherence protocols, Single and multilevel cache, Split transaction buses
Week 6 :Scalable shared memory systems: Directory coherence protocols- Memory based, cache based, correctness
Week 7 :Case study: Origin- Architecture, protocol, correctness
Week 8 :Case study: Sequent NUMA Q- Architecture, protocol, correctness
Week 9 :Memory consistency models- Sequential, Relaxed consistency models
Week 10 :Synchronization- LL-SC, point to point, barrier synchronization, Introduction to Interconnects
Week 11 :Interconnects- Topologies, routing, ow control
Week 12 :Existing Parallel Programming models and. Architectures: Vector, GPU, warehouse, DNN accelerators. Overview of programming and simulators

Taught by

Prof. Hemangee K. Kapoor

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