Welcome to the Spring 2020 CS152 and CS252 web page. This semester the undergraduate and graduate computer architecture classes will be sharing lectures, and so the course web page has been combined.

CS152 is intended to provide a foundation for students interested in performance programming, compilers, and operating systems, as well as computer architecture and engineering. Our goal is for you to better understand how software interacts with hardware, and to understand how trends in technology, applications, and economics drive continuing changes in the field. The course will cover the different forms of parallelism found in applications (instruction-level, data-level, thread-level, gate-level) and how these can be exploited with various architectural features. We will cover pipelining, superscalar, speculative and out-of-order execution, vector machines, VLIW machines, multithreading, graphics processing units, and parallel microprocessors. We will also explore the design of memory systems including caches, virtual memory, and DRAM. An important part of CS152 is series of lab assignments using real microprocessor designs implemented in the Chisel hardware description language, and running as simulators and FPGA emulators hosted in the Amazon cloud (FireSim). These simulators will give you an in-depth look at a variety of processor architectural techniques. Our objective is that you will understand all the major concepts used in modern microprocessors by the end of the semester.

CS252 is intended to provide essential background for students intending to pursue research in computer architecture or related fields, and also provides preparation for the Berkeley EECS computer architecture oral prelim examination. An important part of CS252 is reading and discussion of classic architecture papers, as well as a substantial course project.

Course Calendar with Handouts

Note: Tentative, schedule subject to change!

Week Date Lecture Readings
5th Edition
6th Edition
Assignments / Handouts
1 Wed Jan 22 L1: Introduction, Early Machines PPTX PDF Ch. 1, App. A Ch. 1, App. A
Fri Jan 24 CS152 No section
2 Mon Jan 27 L2: Simple Machine Implementations, Microcoding PPTX PDF
Mon Jan 27 CS252 No Readings Discussion
Wed Jan 29 L3: Pipelining PPTX PDF App. C.1-C.3 App. C.1-C.3 PS 1 (PDF, DOC)
Fri Jan 31 CS152 Section 1: Microcode, Lab 1 Overview PDF Lab 1
Worksheet 1
Handout 1
Blank microcode table
3 Mon Feb 3 L4: Pipelining II PPTX PDF App. C.4-C.6 App. C.4-C.6
Wed Feb 5 L5: Memory Hierarchy PPTX PDF App. B.1-B.2, Ch. 2.1-2.3 App. B.1-B.2, Ch. 2.1-2.2  
Web Feb 5 CS252 Readings Discussion, 380 Soda 1-2pm "Design of the B5000 System", Lonergan, King, 1961
"Architecture of the IBM System/360", Amdahl, Blaauw, Brooks, 1964
Fri Feb 7 CS152 Section 2: Pipelining review PDF     Worksheet 2
4 Mon Feb 10 L6: Memory Hierarchy II PPTX PDF App. B.3 App. B.3 PS 1 due at start of class
Wed Feb 12 L7: Memory Hierarchy III PPTX PDF PS 2 (PDF, DOC)
Handout 2
Wed Feb 12 CS252 Readings Discussion "The Case for the Reduced Instruction Set Computer", Patterson, Ditzel, 1980
Comments on the "The Case for the RISC", Clark, Strecker, 1980
"Performance from architecture: comparing a RISC and CISC with similar hardware organization", Bhandarkar, Clark, 1991
Fri Feb 14 CS152 Section 3: PS 1 Review and Memory Hierarchy PDF     PS 1 solutions
Worksheet 3
5 Mon Feb 17 President's Day Holiday
Wed Feb 19 L8: Address Translation and Protection PPTX PDF App. B.4-7 App. B.4-7 Lab 1 due
Fri Feb 21 CS152 Section 4: Lab 2 Overview     Lab 2
6 Mon Feb 24 L9: Virtual Memory PPTX PDF    
Mon Feb 24 CS252 Readings Discussion "IBM's Single-Processor Supercomputer Efforts", Smotherman, Spicer, CACM, 53(1), 2010
"Implementation of Precise Interrupts in Pipelined Processors" , Smith, Pleszkun, ISCA, 1985 (IEEE Trans. Computer Journal version)
"Parallel Operation in the Control Data 6600", Thornton, Proceedings of the Fall Joint Computers Conference, vol 26, pp. 33-40, 1964
Wed Feb 26 L10: Complex pipelines, out-of-order issue, register renaming PPTX PDF
Guest Lecturer: Albert Ou
Ch. 3.1,3.4-3.5 Ch. 3.1,3.4-3.6 PS 2 due.
CS252 project proposals due.
Fri Feb 28 CS152 Section 5: Mid1 review and PS 2 review PDF     PS 2 solutions
Worksheet 4
7 Mon Mar 2 Midterm 1: (L1-L9) Solutions    
Mon Mar 2 CS252 No Readings Discussion
Wed Mar 4 L11: Out-of-order execution PPTX PDF Ch. 3.6, 3.8 Ch. 3.6, 3.8 PS 3 (PDF, DOC)
Fri Mar 6 CS152 Section 6: Out-of-order Execution PDF Worksheet 5
8 Mon Mar 9 L12: Branch Prediction and Advanced Out-of-Order Superscalars PPTX PDF
Guest Lecturer: Jerry Zhao
Ch. 3.3,3.9-3.10 Lab 2 due
Mon Mar 9 POSTPONED: CS252 Project Proposal Discussion
Wed Mar 11 L13: VLIW PPTX PDF
Guest Lecturer: Andrew Waterman
Ch. 3.2,3.7 Ch. 3.2,3.7
Fri Mar 13 CS152 Section 7: Branch Prediction, Lab 3 Overview PDF Lab 3
Worksheet 6 [DOC]
9 Mon Mar 16 L14: Multithreading PPTX PDF Ch. 3.12 Ch. 3.11 PS 3 due
Mon Mar 16 CS252 Readings Discussion "An Efficient Algorithm for Exploiting Multiple Arithmetic units", Tomasulo, IBM Journal, January 1967
"Decoupled Access/Execute Computer Architectures", Smith, ISCA 1982 (ACM TOCS version)
"The MIPS R10000 Superscalar microprocessor", Yeager, IEEE Micro 16(2), 1996
Wed Mar 18 L15: Vectors PPTX PDF Ch. 4.1-4.3 (App. G) PS 4 (PDF, DOC)
Fri Mar 20 CS152 Section 8: Multithreading and Vectors PDF PS 3 Solutions
Worksheet 7 [DOC]
10 Mar 23-27 Spring Break      
11 Mon Mar 30 L16: GPUs PPTX PDF Ch. 4.4-4.9 Ch. 4.4-4.9
Mon Mar 30 CS252 Readings Discussion "Combining Branch Predictors", McFarling, DEC WRL Technical Note TN-36, 1993
"Dynamic Branch Prediction with Perceptrons", Jimenez, Lin, HPCA 2001
" A case for (partially) TAgged GEometric history length branch prediction , Seznec, Michaud, Journal of Instruction Level Parallelism (JILP), 2006
Wed Apr 1 L17: Vectors II PPTX PDF Ch. 4.1-4.3 (App. G) Ch. 4.1-4.3 (App. G)
Fri Apr 3 CS152 Section 9: Vectors, GPUs, and Lab 4 Overview PDF Lab 4
RVV 0.9-draft [PDF]
Worksheet 8 [DOC]
12 Mon Apr 6 L18: Cache Coherence PPTX PDF Ch. 5.1-5.4 Ch. 5.1-5.4 PS4 due
Lab 3 due
Mon Apr 6 CS252 Readings Discussion
"The CRAY-1 Computer System", Russel, CACM 1978
"Very Long Instruction Word Architectures and the ELI-512", Fisher, ISCA 1983
"A VLIW Architecture for a Trace Scheduling Compiler", Colwell et al., IEEE Trans. Computers, 1988
Wed Apr 8 L19: Synchronization and Memory Consistency Models PPTX PDF Ch. 5.1, 5.5-5.6 Ch. 5.1, 5.5-5.6
Fri Apr 10 CS152 Section 10: Midterm 2 Review PDF PS 4 Solutions
Worksheet 9 [DOC]
13 Mon Apr 13 L20: 2017 Turing Award Lecture A New Golden Age for Computer Architecture: Domain-Specific Hardware/Software Co-Design, Enhanced Security, Open Instruction Sets, and Agile Chip Development, David Patterson and John Hennessy Ch. 6 Ch. 6
Mon Apr 13 CS252 Project Checkpoint Project update
Wed Apr 15 Midterm 2: L10-17 Solutions Ch. 5.4 PS 5 (PDF, DOC)
Handout 6
Handout 7
Fri Apr 17 CS152 Section 11: Cache Coherence PDF   Lab 5 Postponed to 4/20
Worksheet 10 [DOC]
14 Mon Apr 20 L21: Virtual Machines PPTX PDF Ch. 5.2-5.3 Ch. 5.2-5.3 Lab 5
Lab 4 due
Mon Apr 20 CS252 Readings Discussion "The Tera Computer System", Alverson et al, ICS 1990
"Shared Memory Consistency Models: A Tutorial", Adve, Gharachorloo, DEC WRL TR, 1995
"The SGI Origin: a ccNUMA highly scalable server", Laudon, Lenoski, ISCA 1997
Wed Apr 22 L22: Synchronization Primitives PPTX PDF
Fri Apr 24 CS152 Section 12: Memory Consistency PDF Worksheet 11 [DOC]
15 Mon Apr 27 L23: I/O and Warehouse-Scale Computing PPTX PDF Ch. 7 PS 5 due
Mon Apr 27 CS252 Project Checkpoint Project update
Wed Apr 29 L24: Last lecture: Putting it all together PPTX PDF Please complete course evaluations online!
Fri May 1 CS152 Section 13: Final Review PDF Lab 5 due Extended to 5/4
PS 5 Solutions
Final Review Part 1 [DOC]
16 Mon May 4 No lecture - RRR Week Lab 5 due
Wed May 6 No CS152 lecture - RRR Week
Wed May 6 CS 252 Final Project Presentations 10:40am-12:00pm PDT
Friday May 8 CS152 Section 14: Final Review PDF Final Review Part 2 [DOC]
17 Tues May 12 CS 152 Final Exam: 3:00pm-6:00pm PDT Solutions Course evaluations due!
Fri May 15 CS 252 Final Project Papers due, 11:59PM PDT Email pdf to all instructors.