CS 433G: Computer System Organization

1
CS 433GComputer System Organization

• Prof. Luddy Harrison
• Spring 2007
• Introduction

2
Administrative Matters

• Professor
• Luddy Harrison
• 4108 Siebel Center
• luddy_at_uiuc.edu (I encourage you to use this)
• Office Hours Friday at 10AM or by appointment
• Administrative assistant Molly Flesner, 4120
  Siebel Center
• Teaching Assistants
• Vytautas Valancius
• Contact information, office hours and location
  will be on the web site soon
• Textbook
• John L. Hennessy and David A. Patterson
• Computer Architecture A Quantitative Approach
  (Fourth Edition)

3
Web Site

• URL
• http//www.cs.uiuc.edu/class/cs433g
• What you will find there
• Schedule of lectures, homeworks, quizzes, exams
• Lecture notes
• Links to processor documentation
• Policies
• The Web Site Is Important
• All announcements will be made there
• It will be online by the end of this week

4
Newsgroup

• news.cs.uiuc.edu
• cs433g
• post questions for me and the TA here

5
Projects

• Every student will do a project
• Asssembly language programming
• Using either a simulator, development board, or
  other execution platform
• PERFORMANCE
• Three parts to the project
• Written Design 25 of grade
• Due by March 1
• Working but low-performance version 25 of
  grade
• Due by April 1
• Final version 50 of grade
• Due by May 1
• Easy projects on commonplace processors will get
  lower marks than difficult projects on
  special-purpose processors
• You are responsible for getting an execution
  platform or access to one. This will not be done
  for you, it is part of the project. I will help
  you but I will not do it for you.
• START EARLY!!

6
The Book

• I will follow it closely concerning
• Pipelining
• Tomasculo
• Cache
• Virtual Memory
• I will not always follow it closely
• I find it to be somewhat outdated
• Material in the assigned reading sections is fair
  game for tests and quizzes.

7
Goals and Focus

• Processor Architecture
• Therefore dropping CAAQA Chapters
• 7 (Secondary Storage) and
• 8 (Interconnects)
• Mechanisms for Performance
• Parallelism
• Pipelining
• Data parallelism
• ILP
• Static
• Dynamic
• Multithreading
• Multiprocessing
• Reduced Memory Latency / Increased Memory
  Bandwidth
• Caching
• Latency Hiding
• Wide Memory Interfaces
• Current Processors as Examples (this list is only
  preliminary)
• MIPS (general purpose, embedded control)

8
Skills You Will Develop

• Know the major classes of processor type
• What characterizes each in terms of
• Programming Model / Application
• Structure
• Performance
• Grasp a new processor architecture quickly
• Size it up in terms of
• Programming Model / Application
• Structure
• Performance
• Compare it intelligently to its ancestors
• Be able to understand assembly language programs
  for it
• Reason about processor and system performance
• Quantitatively (CAAQA)
• Qualitatively and Intuitively

9
What Kind of Person is a Computer Architect?

• Expert in target application domain
• Expert in circuit / logic design and highly
  proficient with CAD tools
• Good engineering team leader
• Can inspire others to follow
• Can promote and explain ideas tirelessly
• Can talk well with
• Customers
• Co-workers
• Investors, sponsors, etc.
• Can organize work for others
• Knows the history of computer architecture
• What has been done before
• What worked and did not work, etc.
• At least for the processor type under
  consideration, but most commonly for many types
  of processors

10
Course at a Glance

• Instruction Sets (Ch 2)
• MIPS
• ARM
• Pipelined Execution (App A)
• Performance Metrics (Ch 1)
• Instruction Level Parallelism
• Static Exploitation (Ch 4)
• C6x
• TigerSharc
• Dynamic Exploitation (Ch 3)
• IA32

• Memory Hierarchy (Ch 5)
• Caching
• Memory System Design
• Virtual Memory
• PowerPC
• Multithreading and Multiprocessing (Ch 6)
• Symmetric MP
• Distributed computing
• Simultaneous MultiThreading
• Stream Processing
• IXA

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Systems / Processors by Structure and Price

• RISC
• MIPS R3000, R4000,
• Alpha 21164, 21264
• Motorola 88000, 88100,
• IBM Power / PowerPC
• Sun Sparc
• Signal Processors (Harvard Architecture)
• Motorola 56000
• TI C54, C55
• VLIW
• TI TMS320C6000 (C6x)
• ADI TigerSharc
• Media Processors
• MicroUnity
• Trimedia TM32 (also VLIW)
• Network Processors
• MMC Network nP family
• Intel IXA
• Graphics Processors

• Mainframes
• CDC Cyber Series
• IBM 360
• Minicomputers
• PDP-11
• Vax 11/750
• Microprocessors
• Intel 8086
• Motorola 68000
• Supercomputers (Vector)
• Cray 2, XMP
• Minisupercomputers (Vector)
• Alliant FX/8
• Convex

We will cover these processor types
12
Processors by Programming Model and Application

• General Purpose
• Intel IA32, AMD (PC)
• IBM PowerPC (Apple)
• Low-Power General Purpose
• ARM (Palm Pilot)
• Embedded Control
• Intel IA32
• MIPS
• PowerPC
• ARM
• Scientific
• IBM Power3, Power4
• Sparc
• IA32, AMD
• IA64

• Cell Phone
• TI C54
• ADI Blackfin
• Cellular Infrastructure
• TI TMS320C6000
• ADI TigerSharc
• Network Routers and Switches
• Intel IXA
• Cisco Toaster
• MMC/AMCC nP
• Graphics
• Nvidia NV30/35, NV43
• ATI R350, R480