Distributed Systems Fall 2014 Introduction
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Introduction slides for Distributed Systems course at Department of Computer Science at University of Helsinki in Fall 2014.
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Distributed Systems Fall 2014 Introduction
- 1. Distributed Systems Fall 2014 Jussi Kangasharju
- 2. Course Goals • Distributed Systems and their • Basic concepts • Main issues, problems, solutions • Examples from research
- 3. Course Content • Distributed systems • Architectures, goal, challenges • Where our solutions are applicable • Synchronization: Time, coordination, decision making • Replicas and consistency • Fault tolerance • Large-scale distributed systems in real world
- 4. Course Format • Drastically different from previous years :-) • No exam, no weekly exercise sessions • Very few slides and traditional lectures • Instead: • Reading research articles and writing essays • Larger home work exercises (writing + programming) • Smaller exercises, mostly algorithms or programming
- 5. Course Material • Research articles provided on website • Reading list will be made available soon • List covers a few following weeks • Algorithms • Wikipedia is a good source • Selected content from Barroso L. A. et al.: The Datacenter as a Computer (available online, see course website) • No book to buy • Books used in past courses may help with algorithms, but not other stuff
- 6. Weekly Schedule • Sunday: Article essay due • Monday lecture: Discussion about article, new material, e.g., algorithms • Thursday lecture: Workshop session • First three workshops mainly tutorials for new students • Later workshops discussion about exercises • Home exercise deadlines: (hard deadlines!) • Exercises 1 and 2: October 19 • Exercises 3 and 4: December 14
- 7. Passing the Course • 10-12 article essays to be returned! • Graded 0-3 points, can get 0 one time • 4 larger home exercises! • Graded 0-6 points, must get at least 1 in each • Additional exercises (~ 4-6)! • Graded 0-2 points • All points summed up and grading based on 60 point maximum • Need 30 points overall to pass, 50 points for 5 • Must still pass each required exercise
- 8. Spring and Summer? • It will be possible to pass the course in Spring and Summer 2015 • Exact format still open, alternatives: • Exam based on some material • A self-study variant of this Fall's course
- 9. People • Jussi Kangasharju! • Lectures/workshops: Mon, Thu 10-12, C222 • Office hour: Mon 13-14, D233 or ask appointment by email • Ossi Karkulahti! • Workshops: Thu 10-12, C222 • Twitter hashtag #UnivHelsinkiCS_DS14 • Announcements, quick questions • Also displayed on course website
- 10. Questions?
- 11. What is a Distributed System? • Traditional definition: • “A collection of independent computers that appears to its users as a single coherent system or as a single system.” • Modern definition: • “???”
- 12. Where Does the Definition Leave Us? Multi-core processor Parallel systems Multi-processor computer One data center Internet Computing cluster Corporate intranet Network of data centers Local Area Network Web
- 13. What About the Following? Ticket reservation system My office Car Airplane My home theater setup Nuclear power plant Mobile phone Factory