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[[Category:Fall 2014 SPO600]]
{{Admon/important|It's Alive!|This [[SPO600]] weekly schedule will be updated as the course proceeds - dates and content are subject to change. The cells in the summary table will be linked to relevant resources and labs as the course progresses.}}
{|cellspacing="0" width="100%" cellpadding="5" border="1" style="background: #e0e0ff"
|-
!Week!!Week of...!!Tuesday!!ThursdayFriday!!Deliverables<br/>(Summary - click for details)
|-
|1||Sep 1||(''Experience Seneca'' Orientation - No Class)||[[#Thursday Friday (Sep 45)|Introduction to Software Porting, Portability, Benchmarking, and Optimization/ How is code accepted into an open source project?]]||[[#Week 1 Deliverables|Set up accountsand a Fedora system]]
|-
|2||Sep 8||[[#Tuesday (Sep 9)|How is Code Accepted? - Analyze code submissions in two separate open source projectsComputer Architecture Overview]]||[[#Thursday Friday (Sep 1112)|Computer Architecture OverviewCompiled C Lab]]||rowspan="2"|[[#Week 2 Deliverables|Blog a commentary on code reviews in two communities (Lab 1)and on the Compiled C Code lab (Lab 2).]]
|-
|3||Sep 15||colspan="2" align="center"|Linaro Connect 2014 - No classes scheduled - Prepare your [[#Week 3|presentation on assembly language code]]||[[#Week 3 Deliverables|Assembly language presentation]] ready for presentation next Tuesday (TBASeptember 23).
|-
|4||Sept 22||Introduction to [[#Tuesday (Sep 23)|Assembly Languagelanguage presentations & Assembly Basics]]||Hello World - Compile a basic C program and analyze the resultant binary[[#Friday (Sep 26)|Assembly language presentations, continued]]||[[#Week 4 Deliverables|Set up a Fedora system / Blog on binary analysis (Lab 2)the content of your presentation]]
|-
|5||Sep 29||Writing x86 [[#Tuesday (Sep 30)|Assembly Languagelab (Lab 3)]]||Writing Aarch64 Assembley Language[[#Friday (Oct 3)| Inline assembler and compiler optimizations / Potential Project Triage – Scan the potential project list from the Linaro Performance site]]||[[#Week 5 Deliverables|Blog post about writing in assembly language lab (Lab lab 3)and potential projects]]
|-
|6||Oct 6||Lab 3 results, inline assembler, [[#Tuesday (Oct 7)|Guest Speaker: Jon "Maddog" Hall]]||[[#Friday (Oct 10)|Codebase analysis / Memory barriers and compiler optimizationsAtomics]]||Potential Project Analysis [[#Week 6 Deliverables|Analyze the platform- Analyzing a codebase for assembler and non-portable specific code||Blog post about your selected projectsin 3 packages.]]
|-
|7||Oct 13||Memory Barriers and Atomics[#Tuesday (Oct 15)|[[#Tuesday (Oct 14)|Group hack session Architecture- Portingspecific Code - Why?]]||Identify the assembler in [[#Friday (Oct 17)|Compiler Intrinsics and Picking your projects Package]]||[[#Week 7 Deliverables|Pick your package and contact your upstream communitiesblog about it.]]
|-style="background: #f0f0ff"
|Study Week||Oct 20||colspan="3" align="center"|Study Week<br />'''[http://fsoss.ca FSOSS 2014] on Thursday-Friday'''
|-
|8||Oct 27||Architecture-specific [[#Tuesday (Oct 28)|Working with the Code for Performance]]||[[#Friday (Oct 31)|Group hack session - Porting||Blog about your progress.|- |9||Nov 3||Portability - Removing platform-specific codeProfiling]]||Group hack session - Portability|[[#Week 8 Deliverables|Blog about your progress.]]
|-
|89||Nov 103||Project Work[[#Tuesday (Nov 4)|Profiling review]]||Project Work[[#Friday (Nov 11)|Group hack session]]|Get code into review and blog about it|[[#Week 9 Deliverables|Post baseline stats for your software.]]
|-
|910||Nov 1710||Status Update[[#Tuesday (Nov 11)|Presentations]]||[[#Friday (Nov 14)|AArch64 on x86_64 / Hack session]]|Foundation Models|[[#Week 10 Deliverables|Install and Test With Foundation Model and blog Blog about ityour project status - 1st project marks.]]
|-
|1011||Nov 2417||Profiling[[#Tuesday (Nov 18)|Discussion and hack session]]||Baseline Profiling[[#Friday (Nov 21)|Discussion and hack session: Commercial vs. Technical Reality]]|Post baseline stats for |[[#Week 11 Deliverables|Upstream your software.work and blog about it]]
|-
|1112||Nov 1724||Optimizing Code[[#Tuesday (Nov 25)|Project Update Presentations]]|Group |[[#Friday (Nov 28)|Discussion and hack - Profiling and optimizingsession]]||[[#Week 12 Deliverables|Post a code review updateBlog about your project status - 2nd project marks.]]
|-
|1213||Nov 24Dec 1||Using complier optimizations||Project Work||Post a code review update.|- [[#Tuesday (Dec 2)|13Discussion and Hack Session]]||[[#Friday (Dec 1||Final Presentations|5)|Final PresentationsDiscussion and Hack Session]]||Code accepted upstream. Blog about it!
|-style="background: #f0f0ff"
!Category!!Percentage!!Evaluation Dates
|-
|Communication||align="right"|20%||<strike>September 30</strike>, <strike>October 31</strike>, November 21, December 10
|-
|Quizzes||align="right"|10%||May be held during any class, usually at the start of class. A minimum of 5 one-page quizzes will be given. No make-up/retake option is offered if you miss a quiz. Lowest 3 scores will not be counted.
|Labs||align="right"|10%||See deliverables column above.
|-
|Project work||align="right"|60%||October 10<strike>November 11</strike> (15%), November 2125 (20%), December 10(25%)
|}
== Week 1 ==
=== Tuesday Friday (Jan 7Sep 5) ===
In this course, you will:# Select two software packages from a list compiled by Steve Macintyre of Linaro. Each of the packages on this list contains assembly language code which is platform-specific.# Prepare a fix/patch for the software so that it will run on 64-bit ARM systems (aarch64). This may be done at either of two levels:## Port - Add additional assembly language code for aarch64 (basic solution).## Make Portable - Remove architecture-specific code, replacing it with compiler intrinsics or high-level code so that the software will successfully build on multiple platforms.# Benchmark - Prove that your changes do not cause a performance regression on existing platforms, and that (ideally) it improves performance.# Upstream your Code - Submitting your code to the upstream (originating) software project so that it can be incorporated into future versions of the software. This will involve going through a code review to ensure that your code is compatible with and acceptable to the upstream community. ==== General Course Information ==== * Course resources are linked from the CDOT wiki, starting at http://zenit.senecac.on.ca/wiki/index.php/SPO600 (Quick find: This page will usually be Google's top result for a search on "SPO600").* Coursework is submitted by blogging.* Quizzes will be short (1 page) and will be held without announcement at any time. Your lowest three quiz scores will not be counted, so do not worry if you miss one or two.* Course marks (see Weekly Schedule for dates):** 60% - Project Deliverables** 20% - Communication (Blog and Wiki writing)** 20% - Labs and Quizzes (10% labs - completed/not completed; 10% for quizzes - lowest 3 scores not counted)* All classes will be held in an [[Active Learning Classroom]] -- you are encouraged to bring your own laptop to class. If you do not have a laptop, consider signing one out of the Learning Commons for class, or using a smartphone with an HDMI adapter.* For more course information, refer to the SPO600 Weekly Schedule (this page), the [http://www.senecacollege.ca/ssos/findWithoutSemester/spo600/sict Course Outline], and [[SPO600 Course Policies]].<!-- * Introduction to the [http://linaro.org Linaro] Code Review LabPorting/Optimization project. --><!-- * Optional: You can participate in the [http://linaro.org Linaro]Code Porting/Optimization contest. For details, see the [http://www.youtube.com/watch?v=Lo1dBB3tke8 YouTube video]of Jon "maddog" Hall and Steve Mcintyre at Linaro Connect USA 2013. --> * Start thinking about ==== Discussion of how you want to set up your open source communities work ==== (Background for the [[SPO600 SoftwareCode Review Lab|Code Review Lab (Lab 1)]]which is homework due Week 2).
=== Week 1 Deliverables ===
# Set up your [[SPO600 Communication Tools|Set ]] - in particular, set up a blog and add it to [http://zenit.senecac.on.ca/~chris.tyler/planet/ Planet CDOT]].# Blog your conclusion to (via the [[SPO600 Code Review LabPlanet CDOT Feed List]]).# Add yourself to the [[Winter Fall 2014 SPO600 Participants]] page (leave the projects columns blank).# Generate a [[SSH#Using_Public_Keys_with_SSH|pair of keys]] for [[SSH]] and email the public key to your professor.
# Sign and return the [[Open Source Professional Option Student Agreement]].
# [[SPO600 Host Setup|Set up a Fedora 20 system]].
== Week 2 ==
=== Tuesday (Jan 14Sep 9) ===* [[Computer Architecture]] (see also the [[:Category:Computer Architecture|Computer Architecture Category]])
* [[Computer Architecture]] overview (see also the [[:Category:Computer Architecture|Computer Architecture Category]]) === Friday (Jan 17Sep 12) ==={{Admon/tip|Bring Your Laptop|Classes are held in a [[Active Learning Classroom]]. If you have a laptop or other device with a VGA or HDMI output (such as a smartphone!) please bring it. You'll need either a local linux environment or an SSH client -- which is built-in to Linux, Mac, and Chromebook systems, and readily available for Windows, Android, and iOS devices.}}* Perform the [[SPO600 Compiled C Lab|Compiled C Lab (Lab 2)]]in groups
=== Week 2 Deliverables ===
* Blog Complete and blog your conclusion to the [[SPO600 Compiled C Code Review Lab|Code Review Lab (Lab1)]].* Blog your conclusion to the [[SPO600 Host SetupSPO600_Compiled_C_Lab|Set up a Fedora 20 systemCompiled C Lab (Lab 2)]]
== Week 3 ==
This week [[User:Chris Tyler|your professor]] is at [https://www.linaro.org/connect/lcu/lcu14/ Linaro Connect], an engineering conference run by [http://www.linaro.org Linaro] - a distributed not-for-profit collaborative technology company focused on Linux on ARM. You can [https://www.linaro.org/connect/lcu/lcu14/remote/ participate remotely] and may find some of the sessions interesting.
=== Week 3 Deliverables ===
* Blog Be prepared to give your conclusion to the [[Fall 2014 SPO600 Assembler LabAssembly Language Presentation|presentation]]on Tuesday of next week (September 23).
== Week 4 ==
=== Tuesday (Jan 28Sep 23) ===* Give your [[Fall 2014 SPO600 Assembly Language Presentation|presentation about an assembly language topic]] - teach your SPO600 colleagues === Friday (Sep 26) ===* Remainder of the [[Fall 2014 SPO600 Assembly Language Presentation|presentations about an assembly language topic]]* [[Assembler Basics|Introduction to assembly language]]* Writing x86_64 and aarch64 code in the [[SPO600 Assembler Lab|Assembly language lab (Lab 3)]] === Week 4 Deliverables ===* Blog your [[Fall 2014 SPO600 Assembly Language Presentation|presentation]] == Week 5 == === Tuesday (Sep 30) ===* [[SPO600 Assembler Lab|Assembler Lab]] review === Friday (Oct 3) ===
* [[Inline Assembly Language]]
* [[Compiler Optimizations]]
The [http://performance.linaro.org/ Linaro Performance Challenge] is a project initiated by [http://en.wikipedia.org/wiki/Jon_Hall_%28programmer%29 Jon "Maddog" Hall] and [http://www.linaro.org Linaro] to port or make portable open source software packages which contain platform-specific code and which may not build on the new Aarch64 architecture. (There are two videos about the challenge, both of which are from late 2013 while the program was being finalized: [https://www.youtube.com/watch?v=== Friday Lo1dBB3tke8 One of an interview with Maddog and Steve Macintyre], and [http://people.linaro.org/linaro-connect/lcu13/videos/10-28-Monday/LCU13%20ARM%20Performance%20Optimizations.mp4 the other of a Linaro Connect presentation by Maddog]). The [http://performance.linaro.org/find/ list of packages] for this project was originally developed by the UK Debian developer Steve Macintyre, who works for Linaro. His focus in developing that list was to find packages that contained assembly language code for x86 (Jan 31or other platforms) ===and which did not have assembly language code for ARM, especially Aarch64. As a result, the list includes many false-positives: there are many packages on there that can successfully build on ARM, either due to C work-arounds for the missing assembly code, or conditional compilation of the assembly code, or recent updates to the software, or other reasons. In this class, we're going to start to triage this list by analyzing which packages exist in the Fedora package set and which have been successfully built for the aarch64 architecture. The list has been processed with these steps:# Grab the list of packages from the Linaro Performance Challenge site.# Find out the corresponding names of the packages in the Fedora package set. Most of these will be the same as in the list, but some may be different.# Find out which packages have not been built for Fedora on aarch64# Divide the resulting list up between the members of the class for further analysis '''Please see the [[Fall 2014 SPO600 Packages by Participant]] and perform the steps listed there.''' {{Admon/tip|Participating in the Linaro Performance Challenge|You are invited to participate in the [http://performance.linaro.org Linaro Performance Challenge] directly, utilizing the work you are doing in the SPO600 course. Doing so may enable you to receive a prize for participation and the chance to win a trip to a Linaro Connect conference. In order to participate in the Challenge, you will need to comply with the technical requirements and rules of the Challenge.<br/><br/>Your participation in this course, and the mark you receive in this course, are independent of your participation in the Linaro Performance Challenge.<br/><br/>In other words: Linaro and Seneca are distinct entities, and although you can participate in both the Challenge and SPO600 with the same project, Seneca assumes no responsibility for your interaction with Linaro, and vice-versa.}}
=== Week 5 Deliverables ===* Blog about the [[Codebase Analysis SPO600 Assembler Lab|assembler lab (Lab 3)]].* Do the tasks assigned on the [[Fall 2014 SPO600 Packages by Participant]]page, and blog about it.
== Week 6 == === Tuesday (Oct 7) === Jon "Maddog" Hall will be joining us for a remote talk and Q&A via Google Hangout. === Friday (Oct 10) === In groups, we'll be analyzing software pacakges from the [[Fall 2014 SPO600 Packages by Participant|Packages by Participant]] list to find the platform-specific code and build instructions. === Week 4 6 Deliverables ===
* '''Reminder:''' Week 1Pick three additional packages (not the ones done in class) from your section of the [[Fall 2014 SPO600 Packages by Participant|Packages by Participant]] list and find the platform-3 blog posts are due for marking specific code (or build instructions). Figure out what that code does, and document that on Friday, January 31the list page.* Blog about your results and your reflections on the [[Codebase Analysis Lab]]task.
== Week 5 7 ==
=== Tuesday (Feb 4Oct 14) ===
==== Memory Barriers ====
** [http://blogs.msdn.com/b/oldnewthing/archive/2008/10/03/8969397.aspx MSDN Blog Post] with a very clear explanation of Acquire-Release.
** [http://preshing.com/20130922/acquire-and-release-fences/ Preshing on Programming post] with a good explanation.
** [http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.genc010197a/index.html ARMv8 Instruction Set Architecture Manual] (ARM InfoCentre registration required) - See the section on Acquire/Release and Load/Store, especially Load/Store Exclusive (e.g., LDREX)
==== Atomics ====
'''Atomics''' are operations which must be completed in a single step (or appear to be completed in a single step) without potential interruption.
* Wikipedia has a good basic overview of the need for atomicity in the article on [http://en.wikipedia.org/wiki/Linearizability Linerarizability]
=== Week 5 7 Deliverables ===
== Week 8 ==
=== Week 9 Deliverables Friday (Oct 31) ===* Set up the Foundation Model* Upstream your proposed code changes* Blog about your work == Week 10 ==Benchmarking and Profiling
* Profiling with <code>gprof</code>
** Build with profiling enabled (use the option <code>-pg</code>with both gcc and ld)
** Run the profile-enabled executable
** Analyze the data in the <code>gmon.out</code> file
* [http://www.thegeekstuff.com/2012/08/gprof-tutorial/ Profiling with GProf]
=== Week 8 Deliverables ===* Blog about your progress connecting with the communities associated with your projects and working with the code. == Week 9 ===== Tuesday (Nov 4) ==* Profiling/baseline benchmarking review* Hacking session === Friday (March 21Nov 7) ===* Gather Hacking session === Week 9 Deliverables ===* Blog about your baseline statistics for benchmarking/profiling. == Week 10 ===== Tuesday (Nov 11) ===* Presentation on your softwareproject status === Friday (Nov 14) ===* Running AArch64 code on x86** Foundation models** [[AArch64 QEMU User Space Emulation]]
=== Week 10 Deliverables ===
* Blog about your baseline benchmark project status == Week 11 ===== Tuesday (Nov 18) ===* Discussion and hack session** Blog post about upstreaming: [https://www.linaro.org/blog/core-dump/working-upstream/ What do we mean by working upstream: A long-term contributor's view] === Friday (Nov 21) ===* Discussion and hack session === Week 11 Deliverables ===* Upstream your changes/test results/documentation* Blog about your work* '''Note: Blogs will be marked as of Nov 21 11:59 pm''' == Week 12 ===== Tuesday (Nov 25) ===* Project update presentations === Friday (Nov 28) ===* Discussion and hack session: ''Commercial vs. Technical Reality'' == Week 13 == === Tuesday (Dec 2) ===* Discussion and hack session === Friday (Dec 5) ===* Wrap--up session* '''Remember: Final project submissions via blog are due 11:59 pm December 10.''' <BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/><BR/>