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Instructors: | Mackale Joyner, DH 2063 Zoran Budimlić, DH 10383003 | TAs: | Adrienne Li, Austin Hushower, Claire Xu, Diep Hoang, Hunena Badat, Maki Yu, Mantej Singh, Rose Zhang, Victor Song, Yidi Wang |
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Admin Assistant: | Annepha Hurlock, annepha@rice.edu , DH 3122, 713-348-5186 |
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Piazza site: | https://piazza.com/rice/spring2022/comp322 (Piazza is the preferred medium for all course communications) | Cross-listing: | ELEC 323 |
Lecture location: | Herzstein Amphitheater (online 1st 2 weeks) | Lecture times: | MWF 1:00pm - 1:50pm |
Lab locations: | Keck 100 (online 1st 2 weeks) | Lab times: | Mon 3:00pm - 3:50pm (Austin, Claire) Wed 4:30pm - 5:20pm (Hunena, Mantej, Yidi, Victor, Rose, Adrienne, Diep, Maki) |
Course Syllabus
A summary PDF file containing the course syllabus for the course can be found here. Much of the syllabus information is also included below in this course web site, along with some additional details that are not included in the syllabus.
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The desired learning outcomes fall into three major areas (course modules):
1) Parallelism: functional programming, Java streams, creation and coordination of parallelism (async, finish), abstract performance metrics (work, critical paths), Amdahl's Law, weak vs. strong scaling, data races and determinism, data race avoidance (immutability, futures, accumulators, dataflow), deadlock avoidance, abstract vs. real performance (granularity, scalability), collective & point-to-point synchronization (phasers, barriers), parallel algorithms, systolic algorithms.
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3) Locality & Distribution: memory hierarchies, locality, cache affinity, data movement, message-passing (MPI), communication overheads (bandwidth, latency), MapReduce, accelerators, GPGPUs, CUDA, OpenCL.
To achieve these learning outcomes, each class period will include time for both instructor lectures and in-class exercises based on assigned reading and videos. The lab exercises will be used to help students gain hands-on programming experience with the concepts introduced in the lectures.
To ensure that students gain a strong knowledge of parallel programming foundations, the classes and homeworks homework will place equal emphasis on both theory and practice. The programming component of the course will mostly use the Habanero-Java Library (HJ-lib) pedagogic extension to the Java language developed in the Habanero Extreme Scale Software Research project at Rice University. The course will also introduce you to real-world parallel programming models including Java Concurrency, MapReduce, MPI, OpenCL and CUDA. An important goal is that, at the end of COMP 322, you should feel comfortable programming in any parallel language for which you are familiar with the underlying sequential language (Java or C). Any parallel programming primitives that you encounter in the future should be easily recognizable based on the fundamentals studied in COMP 322.
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There are no required textbooks for the class. Instead, lecture handouts are provided for each module as follows. You are expected to read the relevant sections in each lecture handout before coming to the lecture. We will also provide a number of references in the slides and handouts.The links to the latest versions of the lecture handouts are included below:
There
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There are are also a few optional textbooks that we will draw from during the course. You are encouraged to get copies of any or all of these books. They will serve as useful references both during and after this course:
- Fork-Join Parallelism with a Data-Structures Focus (FJP) by Dan Grossman (Chapter 7 in Topics in Parallel and Distributed Computing)
- Java Concurrency in Practice by Brian Goetz with Tim Peierls, Joshua Bloch, Joseph Bowbeer, David Holmes and Doug Lea
- Principles of Parallel Programming by Calvin Lin and Lawrence Snyder
- The Art of Multiprocessor Programming by Maurice Herlihy and Nir Shavit
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Finally, here are some additional resources that may be helpful for you:
- Slides titled "MPI-based Approaches for Java" by Bryan Carpenter
Lecture Schedule
Week | Day | Date (2022) | Lecture | Assigned Reading | Assigned Videos (see Canvas site for video links) | In-class Worksheets | Slides | Work Assigned | Work Due | Worksheet Solutions | ||||||||||||||
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1 | Mon | Jan 10 | Lecture 1: Task Creation and Termination (Async, Finish) | Module 1: Section 1.1 | Introduction | Topic 1.1 Lecture, Topic 1.1 Demonstration | worksheet1 | lec1-slidesslides |
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| WS1-solution | |||||||||||||
| Wed | Jan 12 | Lecture 2: Computation Graphs, Ideal Parallelism | Module 1: Sections 1.2, 1.3 | Topic 1.2 Lecture, Topic 1.2 Demonstration, Topic 1.3 Lecture, Topic 1.3 Demonstration | worksheet2 | lec2-slides | Homework 1 |
| Functional Programming | GList.java | worksheet2 | lec02-slides |
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| WS2-solution | ||||||||
Fri | Jan 14 | Lecture 3: Abstract Performance Metrics, Multiprocessor Scheduling | Module 1: Section 1.4 | Topic 1.4 Lecture, Topic 1.4 Demonstration | worksheet3 | Higher order functions | worksheet3 | lec3-slides lec3-slides |
| WS3-solution | ||||||||||||||
2 | Mon | Jan 17 | Lecture 4: Parallel Speedup and Amdahl's Law | Module 1: Section 1.5 | Topic 1.5 Lecture, Topic 1.5 Demonstration | worksheet4 | lec4-slides | No class: MLK | Quiz for Unit 1 | |||||||||||||||
| Wed | Jan 19 | Lecture 5: Future Tasks, Functional Parallelism ("Back to the Future") | Module 1: Section 2.1 | Topic 2.1 Lecture, Topic 2.1 Demonstration | worksheet5 | 4: Lazy Computation | LazyList.java Lazy.java | worksheet4 | lec4lec5-slides | WS4-solution | |||||||||||||
| Fri | Jan 21 | Lecture 65: Java Streams | Finish Accumulators | Module 1: Section 2.3 | Topic 2.3 Lecture, Topic 2.3 Demonstration | worksheet6 | lec6-slides | Quiz for Unit 1 | worksheet5 | lec5-slides | Homework 1 | WS5-solution | |||||||||||
3 | Mon | Jan 24 | Lecture 76: Map Reduce with Java Streams | Module 1: Section 2.4 | Topic 2.4 Lecture, Topic 2.4 Demonstration | worksheet7worksheet6 | lec7lec6-slides |
| WS6-solution | |||||||||||||||
| Wed | Jan 26 | Lecture 8: Data Races, Functional & Structural Determinism7: Futures | Module 1: Section 2.5, 2.61 | Topic 2.5 1 Lecture , Topic 2.5 Demonstration, Topic 2.6 Lecture, Topic 2.6 Demonstration | worksheet8 | 1 Demonstration | worksheet7 | lec7lec8-slides | Homework 2 | Homework 1 | WS7-solution | ||||||||||||
| Fri | Jan 28 | Lecture 9: Java’s Fork/Join Library | Topic 2.7 Lecture, Topic 2.7 Demonstration, Topic 2.8 Lecture, Topic 2.8 Demonstration | worksheet9 | lec9-slides | Quiz for Unit 2 | 8: Computation Graphs, Ideal Parallelism | Module 1: Sections 1.2, 1.3 | Topic 1.2 Lecture, Topic 1.2 Demonstration, Topic 1.3 Lecture, Topic 1.3 Demonstration | worksheet8 | lec8-slides | WS8-solution | |||||||||||
4 | Mon
| Jan 31 | Lecture 9: Async, Finish, Data-Driven Tasks | Module 1: Section 1.1, 4.5
| Topic 1.1 Lecture, Topic 1.1 Demonstration, Topic 4.5 Lecture, Topic 4.5 Demonstration | worksheet9 | lec9-slides | WS9-solution | ||||||||||||||||
Wed | Feb 02 | Lecture 10: Event-based programming model
| worksheet10 | lec10-slides | WS10-solution | |||||||||||||||||||
Fri | Feb 04 | Lecture 11: GUI programming as an example of event-based, futures/callbacks in GUI programming | worksheet11 | lec11-slides | Homework 2 | Homework 1 | WS11-solution | |||||||||||||||||
5 | Mon | Feb 07 | Lecture 10: Loop-Level Parallelism, Parallel Matrix Multiplication12: Scheduling/executing computation graphs Abstract performance metrics | Module 1: Sections 3.Section 1, 3.24 | Topic 31.1 4 Lecture , Topic 31.1 Demonstration , Topic 3.2 Lecture, Topic 3.2 Demonstration | worksheet10 | 4 Demonstration | worksheet12 | lec12lec10-slides | WS12-solution | ||||||||||||||
| Wed | Feb 09 | Lecture 11: Iteration Grouping (Chunking), Barrier Synchronization 13: Parallel Speedup, Critical Path, Amdahl's Law | Module 1: Sections 3.3, 3.4Section 1.5 | Topic 31.3 5 Lecture , Topic 31.3 Demonstration, Topic 3.4 Lecture , Topic 3.4 Demonstration | worksheet11 | lec11-slides | 5 Demonstration | worksheet13 | lec13-slides | WS13-solution | |||||||||||||
| Fri | Feb 11 | No class: Spring Recess Lecture 12: Data-Driven Tasks | Module 1: Sections 4.5 | Topic 4.5 Lecture Topic 4.5 Demonstration | worksheet12 | lec12-slides | Quiz for Unit 2 | ||||||||||||||||
6 | Mon | Feb 14 |
| Lecture 14: Accumulation and reduction. Finish accumulators | Module 1: Section 2.3 | Topic 2.3 Lecture Topic 2.3 Demonstration | worksheet14 | lec14-slides | WS14-solution | |||||||||||||||
| Wed | Feb 16 | Lecture 1315: Parallelism in Java Streams, Parallel Prefix Sums | Module 1: Sections 3.7 | Topic 3.7 Lecture , Topic 3.7 Demonstration | worksheet13 | lec13-slides | Homework 3 (includes one intermediate checkpoint)
| Homework 2 | Recursive Task Parallelism | worksheet15 | lec15-slides |
| WS15-solution | ||||||||||
Fri | Feb 18 | Lecture 14: Iterative Averaging Revisited, SPMD pattern16: Data Races, Functional & Structural Determinism | Module 1: Sections 32.5, 32.6 | Topic 32.5 Lecture , Topic 32.5 Demonstration, Topic 32.6 Lecture, Topic 32.6 Demonstration | worksheet14 worksheet16 | lec14lec16-slides | Quiz for Unit Homework 3 | Homework 2 | WS16-solution | |||||||||||||||
7 | Mon | Feb 21 | Lecture 1517: Point-to-point Synchronization with Phasers | Module 1: Section 4.2, 4.3 | Topic 4.2 Lecture , Topic 4.2 Demonstration, Topic 4.3 Lecture, Topic 4.3 Demonstration | worksheet15 | Midterm Review | lec17lec15-slides | ||||||||||||||||
| Wed | Feb 23 | Lecture 16: Midterm Review | 18: Limitations of Functional parallelism. | worksheet18 | lec18lec16-slides | WS18-solution | |||||||||||||||||
| Fri | Feb 25 | Lecture 17: Pipeline Parallelism, Signal Statement, Fuzzy Barriers | Module 1: Sections 4.4, 4.1 | Topic 4.4 Lecture , Topic 4.4 Demonstration, Topic 4.1 Lecture, Topic 4.1 Demonstration | worksheet17 | 19: Fork/Join programming model. OS Threads. Scheduler Pattern | Topic 2.7 Lecture, Topic 2.7 Demonstration, Topic 2.8 Lecture, Topic 2.8 Demonstration, | worksheet19 | lec19lec17-slides | WS19-solution | |||||||||||||
8 | Mon | Feb 28 | Lecture 18: Abstract vs. Real Performance | worksheet18 | lec18-slides | Quiz for Unit 4 | Quiz for Unit 3 | 20: Confinement & Monitor Pattern. Critical sections |
| Wed | Mar 02 | Lecture 19: Critical Sections, Isolated construct (start of Module 2) | Module 2: Sections 5.1, 5.2, 5.6 , | Topic 5.1 Lecture, Topic 5.1 Demonstration, Topic 5.2 Lecture, Topic 5.2 Demonstration, Topic 5.6 Lecture, Topic 5.6 Demonstration | worksheet19worksheet20 | lec19lec20-slides | WS20-solution | |||||||
| FriWed | Mar 0402 | Lecture 20: Parallel Spanning Tree algorithm, 21: Atomic variables, Synchronized statements | Module 2: Sections 5. 3, 5.4, 57. 52 | Topic 5.3 Demonstration, Topic 5.4 Lecture, Topic 5.4 Demonstration, Topic 57.5 Lecture, Topic 5.5 Demonstration | worksheet20 | lec20-slides | 2 Lecture | worksheet21 | lec21-slides | WS21-solutionQuiz for Unit 4 | |||||||||||||
| 9 | MonFri | Mar 0704 | Lecture 21: Actors | Module 2: 6.1, 6.2 | Topic 6.1 Lecture , Topic 6.1 Demonstration , Topic 6.2 Lecture, Topic 6.2 Demonstration | worksheet21 | lec21-slides | Quiz for Unit 5 |
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| Wed | Mar 09 | Lecture 22: Actors (contd) | Module 2: 6.3, 6.4 | Topic 6.3 Lecture, Topic 6.3 Demonstration, Topic 6.4 Lecture , Topic 6.4 Demonstration | worksheet22 | lec22-slides | Homework 3, Checkpoint-1 | ||||||||||||||||
| Fri | Mar 11 |
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Mon | Mar 14 | Lecture 23: Actors (contd) | Module 2: 6.5, 6.6 | Topic 6.5 Lecture, Topic 6.5 Demonstration, Topic 6.6 Lecture, Topic 6.6 Demonstration | worksheet23 | lec23-slides | Quiz for Unit 5 | |||||||||||||||||
22: Parallel Spanning Tree, other graph algorithms | worksheet22 | lec22-slides | Homework 4 | Homework 3 | WS22-solution | |||||||||||||||||||
9 | Mon | Mar 07 | Lecture 23: Java Threads and Locks | Module 2: Sections 7.1, 7.3 | Topic 7.1 Lecture, Topic 7.3 Lecture | worksheet23 | lec23-slides |
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| Wed | Mar 09 | Lecture 24: Java Locks - Soundness and progress guarantees | Module 2: 7.5 | Topic 7.5 Lecture | worksheet24 | lec24-slides |
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| Fri | Mar 11 | Lecture 25: Dining Philosophers Problem | Module 2: 7.6 | Topic 7.6 Lecture | worksheet25 | lec25-slides |
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Mon | Mar 14 | No class: Spring Break | Wed | Mar 16 | Lecture 24: Java Threads, Java synchronized statement | Module 2: 7.1, 7.2 | Topic 7.1 Lecture, Topic 7.2 Lecture | worksheet24 | lec24-slides | Quiz for Unit 6 |
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Fri | Wed | Mar | 1816 | Lecture 25: Java Threads, Java synchronized statement (contd), wait/notify | Module 2: 7.1, 7.2 | Topic 7.1 Lecture, Topic 7.2 Lecture | worksheet25 | lec25-slidesNo class: Spring Break |
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10 | MonFri | Mar 2118 | No class: Spring Break |
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10 | Mon | Mar 21 | Lecture 26: N-Body problem, applications and implementations | Lecture 26: Java Locks | Module 2: 7.3 | Topic 7.3 Lecture | worksheet26 | lec26-slides | Homework 4 (includes one intermediate checkpoint) | Homework 3 (all) | WS26-solution | |||||||||||||
| Wed | Mar 23 | Lecture 27: Read-Write Locks, Linearizability of Concurrent Objects | Module 2: 7.3, 7.4 | Topic 7.3 Lecture, Topic 7.4 Lecture | worksheet27 | lec27-slides |
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| Fri | Mar 25 | Lecture 28: Safety and Liveness Properties, Java Synchronizers, Dining Philosophers Problem | : Message-Passing programming model with Actors | Module 2: 6.1, 6.2 | Topic 6.1 Lecture, Topic 6.1 Demonstration, Topic 6.2 Lecture, Topic 6.2 Demonstration Topic 7.5 Lecture, Topic 7.6 Lecture | worksheet28 | lec28-slides |
| Quiz for Unit 7 |
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11 | Mon | Mar 28 | Lecture 29: Message Passing Interface (MPI), (start of Module 3) | Active Object Pattern. Combining Actors with task parallelism | Module 2: 6.3, 6.4 | Topic 6.3 Lecture, Topic 6.3 Demonstration, Topic 6.4 Lecture, Topic 6.4 DemonstrationTopic 8.1 Lecture, Topic 8.2 Lecture, Topic 8.3 Lecture | worksheet29 | lec29-slides | Quiz for Unit 6 |
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| Wed | Mar 30 | Lecture 30: Message Passing Interface (MPI, contd) Task Affinity and locality. Memory hierarchy | Topic 8.4 Lecture | worksheet30 | lec30-slides |
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| Fri | Apr 01 | Lecture 31: Message Passing Interface (MPI, contd) | Data-Parallel Programming model. Loop-Level Parallelism, Loop Chunking | Module 1: Sections 3.1, 3.2, 3.3 | Topic 3.1 Lecture, Topic 3.1 Demonstration , Topic 3.2 Lecture, Topic 3.2 Demonstration, Topic 3.3 Lecture, Topic 3.3 Demonstration Topic 8.5 Lecture, Topic 8 Demonstration Video | worksheet31 | lec31-slides | Quiz for Unit 8 | Quiz for Unit 7 | ||||||||||||||
12 | Mon | Apr 04 | Lecture 32: Task Affinity with Places | worksheet32 | lec32-slides |
| Homework 4 Checkpoint-1 | |||||||||||||||||
| Wed | Apr 06 | Lecture 33: Eureka-style Speculative Task Parallelism | worksheet33 | lec33-slides |
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Homework 5 | Homework 4 | WS31-solution | ||||||||||||||||||||||
12 | Mon | Apr 04 | Lecture 32: Barrier |
| Fri | Apr 08 | Lecture 34: Stencil computation. Point-to-point Synchronization with Phasers | Module 1: Section 4Section 3.2, 4.3 | Topic 4.2 Lecture , Topic 4.2 Demonstration, Topic 4.3 Topic 3.4 Lecture, Topic 3.4 .3 Demonstration | worksheet34worksheet32 | lec34lec32-slides | Quiz for Unit 8 |
| WS32-solution | ||||||||||
| 13 | MonWed | Apr 1106 | Lecture 35: Message-Passing programming model with Actors | Module 2: 6.1, 6.2 | Topic 6.1 Lecture , Topic 6.1 Demonstration , Topic 6.2 Lecture, Topic 6.2 Demonstration | worksheet35 | lec3533: Stencil computation. Point-to-point Synchronization with Phasers | Module 1: Section 4.2, 4.3 | Topic 4.2 Lecture, Topic 4.2 Demonstration, Topic 4.3 Lecture, Topic 4.3 Demonstration | worksheet33 | lec33-slides |
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| WedFri | Apr | 1308 | Lecture | 36: Active Object Pattern. Combining Actors with task parallelism34: Fuzzy Barriers with Phasers | Module 1: Section 4.1 | Topic 4.1 Lecture, Topic 4.1 Demonstration | worksheet34 | lec34 | Module 2: 6.3, 6.4 | Topic 6.3 Lecture , Topic 6.3 Demonstration , Topic 6.4 Lecture, Topic 6.4 Demonstration | worksheet36 | lec36-slides | Homework 4 (all) |
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13 | FriMon | Apr | 1511 | Lecture | 3735: Eureka-style Speculative Task Parallelism |
| worksheet37worksheet35 | lec37lec35-slides |
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14Wed | Mon | Apr 1813 | Lecture 38: Overview of other models and frameworks36: Scan Pattern. Parallel Prefix Sum |
| worksheet36 | lec38lec36-slides | WS36-solution | |||||||||||||||||
WedFri | Apr 2015 | Lecture 39: Course Review (Lectures 19-38)37: Parallel Prefix Sum applications | worksheet37 | lec39lec37-slides | ||||||||||||||||||||
14 | FriMon | Apr 2218 | Lecture 40: Course Review (Lectures 19-38)38: Overview of other models and frameworks | lec40lec38-slides |
Lab Schedule
Wed | Apr 20 | Lecture 39: Course Review (Lectures 19-38) | lec39-slides | |||||||||||
Lab # | Date (2021) | Topic | Handouts | Examples | ||||||||||
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0 | Infrastructure Setup | lab0-handout | ||||||||||||
1 | Jan 10 | Async-Finish Parallel Programming with abstract metrics | lab1-handout | |||||||||||
- | Jan 17 | 2 | ||||||||||||
Jan 24 | Fri | Futures | lab2-handout Apr 22 | Lecture 40: Course Review (Lectures 19-38) | lec40- | slides | Homework 5Jan 31 |
Lab Schedule
Lab # | Date (2022) | Topic | Handouts | Examples | ||||
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1 | Jan 10 | Infrastructure setup | lab0-handout lab1 | 3 | Feb 07 | Cutoff Strategy and Real World Performance | lab3 -handout | |
2 | Feb 14 | DDFs | lab4-handout Jan 17 | Functional Programming | lab2-handout | |||
3 | Feb 21 | No lab this week (Midterm exam) | Jan 24 | Java Streams | lab3-handout | |||
-4 | Feb 28Jan 31 | Futures | lab4-handout | |||||
5 | Mar Feb 07 | LoopData- | level ParallelismDriven Tasks | lab5-handout | lab5-intro||||
6 | MarFeb 14 | Isolated Statement and Atomic VariablesAsync / Finish | lab6-handout | |||||
- | Mar Feb 21 | No lab this week (Midterm) | ||||||
7 | Mar Feb 28Java Threads, Java Locks | Recursive Task Cutoff Strategy | lab7-handout | |||||
8 | Apr 04 | Mar 07 | Java ThreadsActors | lab8-handout | ||||
- | Apr 11 | Message Passing Interface (MPI) | Mar 14 | No lab this week (Spring Break) | ||||
9 | Mar 21 | Concurrent Lists | lab9-handout | |||||
10 | Mar 28 | Actors | lab10-handout | |||||
11 | Apr 04 | Loop Parallelism | lab11-handout | - | Apr 18 | Apache Spark | ||
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| Apr 11 | No lab this weekEureka-style Speculative Task Parallelism | |||||
- | Java's ForkJoin Framework | Apr 18 | No lab this week |
Grading, Honor Code Policy, Processes and Procedures
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Labs must be submitted by the following Monday Wednesday at 114:59pm30pm. Labs must be checked off by a TA.
Worksheets should be completed by the deadline listed in Canvas before the start of the following class (for full credit) so that solutions to the worksheets can be discussed in the next class.
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