1. Albert Chae, Instructor
inst.eecs.berkeley.edu/~cs61c CS61C : Machine Structures Lecture #31 – Summary and Goodbye
Greet class
Albert Chae, Instructor

2. Today’s Schedule
9:30-11 : Summary Lecture
11-12 : Proj3 Regrade OH
12-1:30 : General OH
2-4 : Faux Final Review Session (320 Soda)
4-5 : Omar’s OH (711 Soda)
5-6 : Richard’s Discussion (320 Soda)

3. CS61C: So what's in it for me? (1st lecture)
Learn some of the big ideas in CS & engineering:
5 Classic components of a Computer
Principle of abstraction, systems built as layers
Data can be anything (integers, floating point, characters): a program determines what it is
Stored program concept: instructions just data
Compilation v. interpretation thru system layers
Principle of Locality, exploited via a memory hierarchy (cache)
Greater performance by exploiting parallelism (pipelining, superscalar, MapReduce, multi-..)
Principles/Pitfalls of Performance Measurement
We will take a break and talk about class philosophy.

4. What are “Machine Structures”?
Application (ex: browser)
CS61C
Operating
Compiler
System
(Mac OSX)
Software
Assembler
Instruction Set
Architecture
Hardware
Processor
Memory
I/O system
Datapath & Control
Digital Design
Circuit Design
transistors
Coordination of many levels (layers) of abstraction

5. 61C Levels of Representation
temp = v[k];
v[k] = v[k+1];
v[k+1] = temp;
High Level Language Program (e.g., C)
Compiler
lw $t0, 0($2)
lw $t1, 4($2)
sw $t1, 0($2)
sw $t0, 4($2)
Assembly Language Program (e.g.,MIPS)
Assembler
Machine Language Program (MIPS)
Machine Interpretation
Hardware Architecture Description (Logic, Logisim, Verilog, etc.)
Architecture Implementation
Logic Circuit Description (Logisim, etc.)

6. Upper Div’s that Build on CS61C
CS150 - Design Techniques for SDS
CS152 - Computer Architecture
CS162 - Operating Systems
CS164 - Prog. Lang. & Compilers
EE122 – Networking
EE192 – Mechatronics Design Lab

7. Cool Classes EE143 – Fabricate a wafer CS150 – Program an FPGA
Pong
Tron
Battleship
“cell phone”
CS152 – CPU architecture
Learn about interesting advanced architectures
No longer a crazy project class

8. Cool Classes CS162 – Operating systems CS164 – Compilers
Implement several features of NachOS in Java
Write C code, compile to MIPS binary, RUN ON YOUR OS!!!
CS164 – Compilers
If you liked writing assembler/compiler for proj3 or liked the MCE from 61A
CS170,172,174 – Theory

9. Cool Classes
CS 184 – Graphics
CS 188 – AI
Pacman

10. Coolest class
EE192
Need 2/3 prereqs, but really anything in EECS can probably help
Knowledge of C, CS150, EE120
Can only take in spring
Limited space

11. 20th vs. 21st Century IT Targets
20th Century Measure of Success
Performance (peak vs. delivered)
Cost (purchase cost vs. ownership cost, power)
21st Century Measure of Success? “SPUR”
Security
Privacy
Usability
Reliability
Massive parallelism greater chance (this time) if
Measure of success is SPUR vs. only cost-perf
Uniprocessor performance improvement decelerates

12. Need to revisit chronic unsolved problem
Other Implications
Need to revisit chronic unsolved problem
Parallel programming!!
Implications for applications:
Computing power >>> CDC6600, Cray XMP (choose your favorite) on an economical die inside your watch, cell phone or PDA
On your body health monitoring
Google + library of congress on your PDA
As devices continue to shrink…
The need for great HCI critical as ever!

13. Today’s Schedule
9:30-11 : Summary Lecture
11-12 : Proj3 Regrade OH
12-1:30 : General OH
2-4 : Faux Final Review Session (320 Soda)
4-5 : Omar’s OH (711 Soda)
5-6 : Richard’s Discussion (320 Soda)

14. Proj3 – 66% done… if you need regrade come to OH today or tomorrow
Administrivia
Proj3 – 66% done… if you need regrade come to OH today or tomorrow
Course Surveys
Anonymous Online Survey posted tomorrow
Grading complaint OH
Thursday after the final
Possibly all day Friday

15. Administrivia
Final 8/14 – 9:30-12:30pm in 105 North Gate
Only bring pencils, two 8.5”x11” handwritten sheets + green. Leave backpacks, books, calculators home! Everyone must take ALL of the final!

16. Join Us…
If you did well in CS3 or 61{A,B,C} (A- or above) and want to be on staff?
Usual path: Lab assistant  Reader  TA
Contact Jenny Jones in 395 Soda before first week of semester for LA signup…
Reader/TA forms:
I strongly encourage anyone who gets an A- or above in the class to follow this path…
It will help you internalize the material
Help fellow students, (and get paid for it)

17. Taking advantage of Cal Opportunities
Why are we the #2 Univ in the WORLD?
Research, research, research!
Whether you want to go to grad school or industry, you need someone to vouch for you! (as is the case with the Mob)
Techniques
Find out what you like, do lots of web research (read published papers), hit OH of Prof, show enthusiasm & initiative
research.berkeley.edu/
So says the 2004 ranking from the “Times Higher Education Supplement”

18. RADLab (Reliable Adaptive Distributed)
Some Current Research
RADLab (Reliable Adaptive Distributed)
Looking at datacenter architectures
RAMP (Research Accelerator for Multiple Processors)
Use FPGA’s to get many cores
Picture on right is 1008 cores in 1 rack
Berkeley View
Vision for future of parallel

19. Learn/use some unixy environment
General Advice
Find good partners
Learn/use some unixy environment
Linux, cygwin+X, OS X
CS9G?
Learn some scripting language
CS9H, etc
Grades
Learn and use Vim or emacs

20. Penultimate slide: Thanks to the staff!
Readers
Rick Schmidt
Jillian Moore
TAs
Bill Kramer
Omar Akkawi
Richard Guo
Lab Assistants
Gilbert Chou
Rick Schmidt
Thanks
to Dan Garcia and Scott Beamer for most of the lecture slides
to Matt Johnson for proj1 and parallel material
to other past instructors of CS61C for building this class and its material

21. The Future for Future Cal Alumni
What’s The Future?
New Millennium
Wireless, Nanotechnology, Quantum Computing, 10 M “volunteer” CPUs, the Parallel revolution...
Rapid Changes in Technology
World’s 2nd Best Education
Never Give Up!
“The best way to predict the future is to invent it” – Alan Kay
The Future is up to you!