[![Haswell die photo, c/o Anandtech](images/HSW_Wafer_03.jpg "Haswell die photo, c/o Anandtech")](http://www.anandtech.com/show/7003/the-haswell-review-intel-core-i74770k-i54560k-tested/5) <h2>CIS 501: Computer Architecture <small>Spring 2015</small></h2> ### Course Information **instructor**: [Joe Devietti](http://www.cis.upenn.edu/~devietti/) **when**: Monday/Wednesday 1:30-3:00pm **where**: Berger Auditorium in the basement of [Skirkanich Hall](http://www.facilities.upenn.edu/maps/locations/skirkanich-hall) **contact**: [**piazza**](https://piazza.com/class/i4lg7532cd62ex), [**email**](mailto:cis501@cis), [**canvas**](https://canvas.upenn.edu/courses/1270840) **lecture recordings**: [mediasite](https://ex.cts.isc.upenn.edu/Mediasite/Catalog/Full/1123c78526fe419eaa2f9d14fde06d0821) **TAs**: Liang Luo and Akshitha Sriraman **Graders**: Honnesh Ramachandra and Nivedita Velagaleti **office hours**: + Liang: Mondays 5-6pm in Levine 5th floor breakout space by elevators + Joe: Tuesdays 2-3pm in Levine 572 + Akshitha: Thursdays 3-4pm in Levine 5th floor breakout space by elevators ### Course Description This course is a graduate course on computer architecture with an emphasis on a quantitative approach to cost/performance design tradeoffs. The course covers the fundamentals of classical and modern processor design: performance and cost issues, instruction sets, pipelining, caches, physical memory, virtual memory, I/O superscalar and out-of-order instruction execution, speculative execution, long (SIMD) and short (multimedia) vector execution, multithreading, and an introduction to shared memory multiprocessors. ### Prerequisites CIS 501 is a graduate-level course on computer architecture that assumes significant prior knowledge of computer organization and architecture. You should already be familiar with hardware caches, instruction execution pipelines, basic logic design, and some assembly-level programming. Students are expected to have had a course that covers the material in a textbook such as Patterson and Hennessy's "Computer Organization and Design: The Hardware/Software Interface". Penn's [CIS 371](http://www.cis.upenn.edu/~cis371/) is an example of such a course. If you do not have the appropriate background, you should either 1) not take this class or 2) spend significant time reviewing the textbook and lecture notes from [CIS 371](http://www.cis.upenn.edu/~cis371/). ### Course Materials There is *no required textbook* for this course. For additional review, students may find [Microprocessor Architecture: From Simple Pipelines to Chip Multiprocessors](http://www.cambridge.org/us/catalogue/catalogue.asp?isbn=9780521769921) by Jean-Loup Baer to be helpful. There is an electronic version of this book at [Cambridge Books Online](http://dx.doi.org/10.1017/CBO9780511811258) that up to 3 students can view at one time from the Penn network. If you have no undergraduate coursework in computer architecture you may also want to acquire a copy of Patterson and Hennessy's [Computer Organization and Design: The Hardware/Software Interface](http://textbooks.elsevier.com/web/product_details.aspx?isbn=9780123747501). The Penn Library provides unlimited access to [an online version of this book](http://hdl.library.upenn.edu/1017.12/876659). ### Grading Paper Reviews: 5% Homework: 20% Midterm exam: 30% Final exam: 45% There will be a **midterm exam** and a **final exam**. The final exam will be cumulative and will be held during the final time slot for the course. The final exam will also count as the PhD Architecture WPE I exam. There will be several **homework assignments**, consisting of problems to be worked out by hand and/or coding of simulations. You are granted two 48-hour "grace" periods, and can use at most one per assignment. If you'd like to use a grace period, just email me and I will unlock the assignment on Canvas, no questions asked. No assignment will be accepted after the solutions are posted. Note that grace periods cannot be used for paper reviews. There will be several **paper reviews** of academic papers from the computer architecture research literature. Before we discuss the paper in class, you will meet in groups to discuss the paper and write a concise response to a few high-level questions about the paper. To avoid the same groups for each paper, you may be in a group with a student at most once. If you would like a **regrade** of an assignment or exam, you must email me your request **within 1 week** from the date when grades are announced. ### Academic Misconduct Academic misconduct such as cheating will not be tolerated. The work you submit in this class is expected to be entirely your own. If you submit work that has in part or in whole been copied from some published or unpublished source (including current or former students), or that has been prepared by someone other than you, or that in any way misrepresents somebody else's work as your own, you will face severe discipline by the university. (Adapted from text appearing at the Office of Student Conduct page.) Any detected cases of cheating will be pursued. Penalties can include: receiving a zero on the assignment (the minimum penalty), failing the course, having a note placed in your permanent academic record, suspension, and ultimately expulsion. See Penn's [Code of Academic Integrity](https://provost.upenn.edu/policies/pennbook/2013/02/13/code-of-academic-integrity) for more information. ### Paper Reviews 1. [Cramming More Components onto Integrated Circuits](papers/mooreslaw-reprint.pdf) by Gordon Moore 2. [Producing Wrong Data Without Doing Anything Obviously Wrong!](papers/producing-wrong-data.pdf) by Todd Mytkowicz, Amer Diwan, Matthias Hauswirth and Peter F. Sweeney 3. [Two-Level Adaptive Training Branch Prediction](papers/two-level-branch-pred.pdf) by Tse-Yu Yeh and Yale Patt. 4. [Improving Direct-Mapped Cache Performance by the Addition of a Small Fully-Associative Cache and Prefetch Buffers](papers/jouppi-victim.pdf) by Norm Jouppi 5. [Memory Dependence Prediction using Store Sets](papers/store-sets.pdf) by George Chrysos and Joel Emer ### Important Links + [Recordings](https://ex.cts.isc.upenn.edu/Mediasite/Catalog/Full/1123c78526fe419eaa2f9d14fde06d0821) of each lecture are available online. + The [trace file format](homework/trace-format.html) used in the homework assignments. Lecture slides: + [Introduction](slides/01_intro.pptx) [[pdf]](slides/01_intro.pdf) + [Trends](slides/02_trends.pptx) [[pdf]](slides/02_trends.pdf) + [ISAs](slides/03_isa.pptx) [[pdf]](slides/03_isa.pdf) + [Transistors](slides/04_technology.pptx) [[pdf]](slides/04_technology.pdf) + [Performance](slides/05_performance.pptx) [[pdf]](slides/05_performance.pdf) + [Pipelining](slides/06_pipeline.pptx) [[pdf]](slides/06_pipeline.pdf) + [Caches](slides/07_caches.ppt) [[pdf]](slides/07_caches.pdf) + [Virtual Memory](slides/08_virtual_memory.pptx) [[pdf]](slides/08_virtual_memory.pdf) ### Course Schedule *This schedule is subject to change* <iframe src="https://www.google.com/calendar/embed?showTitle=0&amp;showPrint=0&amp;mode=AGENDA&amp;height=600&amp;wkst=1&amp;bgcolor=%23FFFFFF&amp;src=devietti.net_vn9uev6gb4de8d5akqqeo7buro%40group.calendar.google.com&amp;color=%23060D5E&amp;src=devietti.net_akdn7u5rt6mc1tb6n8g39injik%40group.calendar.google.com&amp;color=%23A32929&amp;ctz=America%2FNew_York" style=" border-width:0 " width="600" height="600" frameborder="0" scrolling="no"></iframe> ### Previous Exams - [Fall 2013 midterm with solutions](https://www.cis.upenn.edu/~devietti/classes/cis501-fall2013/exams/midterm13-solution.pdf) - [Fall 2012 midterm](https://www.cis.upenn.edu/~devietti/classes/cis501-fall2013/exams/midterm12.pdf), [solutions](https://www.cis.upenn.edu/~devietti/classes/cis501-fall2013/exams/midterm12-solution.pdf) + [Fall 2013 final with solutions](https://www.cis.upenn.edu/~devietti/classes/cis501-fall2013/exams/final13-rubric.pdf) + [Fall 2012 final](https://www.cis.upenn.edu/~devietti/classes/cis501-fall2013/exams/final12.pdf), [solutions](https://www.cis.upenn.edu/~devietti/classes/cis501-fall2013/exams/final12-solution.pdf) ### Previous Editions of CIS 501 - [Fall 2013](http://cis.upenn.edu/~devietti/classes/cis501-fall2013/) - [Fall 2012](http://www.cis.upenn.edu/~milom/cis501-Fall12/) - [Fall 2011](http://www.cis.upenn.edu/~milom/cis501-Fall11/)