Real-Time Lunch

RT Lunch is a weekly seminar focussed on current research in real-time systems and related fields. It is open to all and a great way to get to know UNC's Real-Time Systems group. Y'all should come!

We also have a weekly LITMUSRT Lunch as well.

Mailing List

RT Lunch is coordinated via our mailing list rtlunch@listserv.unc.edu. This list is also used to share other relevant news and to coordinate upcoming events. All members of the Real-Time Systems group should subscribe to this list.

Time and Location

For the Spring 2014 semester, RT Lunch is held each Thursday from 12:30 to 1:30 in FB 120.

Spring 2014

Date Presenter Topic
4/24/2014 Bipasa Chattopadhyay Proposal practice talk
4/17/2014 Prof. Sanjoy Baruah Mixed Criticality
4/10/2014 Bryan Ward Multi-resource Real-time reader/writer locks for Multiprocessors
4/3/2014 Jeremy Erickson Dissipation Bounds: Recovering from Overload in Multicore Mixed-Criticality Systems
3/27/2014 Kecheng Yang Soft real-time scheduling on Heterogeneous Systems
3/20/2014 Zhishan Guo The concurrent consideration of uncertainty in WCETs and processor speeds in Mixed-criticality systems
3/6/2014 Glenn Elliott Response-time minimization of automotive-inspired dataflows on Multicore platforms
2/27/2014 Bipasa Chattopadhyay Limited-preemption scheduling on Multiprocessors motivated by multi-GPU systems
2/20/2014 Namhoon Kim/ Tahsin Kabir Cache coloring implementation in Litmus
2/6/2014 Rui Liu Extreme Value Theory and pWCET
1/23/2014 Mac Mollison Proposal practice talk
1/16/2014 - Lunch
1/9/2014 Kecheng Yang Tardiness Bound on Heterogeneous Systems

Fall 2013

Date Presenter Topic
11/20/2013 Glenn Elliott GPUSYNC: A Framwork for Real-Time GPU Managment
11/13/2013 Zhishan Guo Mixed-criticality Scheduling upon Varying-speed Porcessors
11/6/2013 Prof. Jim Anderson Soft Real-time Scheduling
10/30/2013 Bipasa Chattopadhyay GPU as a shared processing unit
10/23/2013 Glenn Elliott CPS PI-meeting report
10/16/2013 - Lunch
10/09/2013 Prof. Harini Ramaprasad Adaptive Scheduling in a Cyber-Physical Smart Grid System using Cooperating Invariants
09/25/2013 Abhilash Thekkilakattil Resource Augmentation for Performance Guarantees in Embedded Real-time Systems
09/18/2013 Jeremy Erickson Real-time 103
09/11/2013 Jeremy Erickson Real-time 102
09/4/2013 Everyone/ Bryan Ward Summer Updates/ Real-time 101

Fall 2012

Date Presenter Topic
12/5/2012 Glenn Elliott Practice Dissertation Proposal Defense
11/28/2012 No Talk No Talk
11/19/2012 Cong Liu An O(m) Analysis Technique for Supporting Real-Time Self-Suspending Task Systems
11/14/2012 Jeremy Erickson Practice Dissertation Proposal Defense
11/7/2012 No Talk No Talk
10/31/2012 Glenn Elliott and Jeremy Erickson RTAS submission overviews
10/24/2012 No Talk No Talk
10/17/2012 Glenn Elliott The Limitations of Fixed-Priority Interrupt Handling in PREEMPT_RT and Possible Solutions
10/10/2012 No Talk No Talk
10/3/2012 Sanjoy Baruah Review of the ARTIST summer school.
09/24/2012 Cong Liu Practice Job Talk
09/19/2012 Haohan Li Global Mixed-Criticality Scheduling on Multiprocessors
09/12/2012 Jeremy Erickson Fair Lateness Scheduling: Reducing Maximum Lateness in G-EDF-like Scheduling
09/05/2012 Everyone Updates from the summer

Spring 2012

Date Presenter Topic
04/25/2012 No Talk No Talk
04/18/2012 No Talk No Talk
04/11/2012 Jeremy Erickson RTAS practice talk
04/04/2012 Jonathan Herman RTAS practice talk
03/28/2012 No Talk No Talk
03/21/2012 No Talk No Talk
03/14/2012 Glenn Elliott, Chris Kenna, Jonathan Herman Litmus Organizational Meeting
03/07/2012 No Talk Spring Break
02/29/2012 Cong Liu Real-Time Scheduling of Tasks with Suspensions
02/22/2012 Alan Burns Multiprocessor Synchronization
02/15/2012 Bryan Ward Supporting Nested Locking in Multiprocessor Real-Time Systems
02/08/2012 Haohan Li On Mixed-Criticality Scheduling
02/01/2012 Jeremy Erickson Soft Real-Time Scheduling in Google Earth
01/25/2012 No talk Group lunch
01/18/2012 Chris Kenna, Jonathan Herman, Alex Mills RTSS conference review

Fall 2011

Date Presenter Topic
12/07/2011 Jeremy Erickson Practice talk for OPODIS
11/30/2011 No talk No talk
11/21/2011 Bipasa Chattopadhyay Two resource partitioning problem(Monday 12:30 to 1:30 in FB 120)
11/16/2011 Haohan Li Mixed Criticality
11/9/2011 Sanjoy Baruah Flex Ray
11/2/2011 Glenn Elliott RTCSA talk
10/24/2011 Chris Kenna, Jonathan Herman PRP waiver talks(Monday 12:30 to 2:00 in FB 120)
10/19/2011 Jeremy Erickson, Jonathan Herman Summary of papers submitted to RTAS
10/12/2011 No talk No talk
10/05/2011 No talk No talk
09/28/2011 No talk No talk
09/21/2011 Glenn Elliott An Optimal k-Exclusion Real-Time Locking Protocol Motivated by Multi-GPU Systems
09/14/2011 Mac Mollison Summer school
09/14/2011 Cong Liu Improving the Schedulability of Sporadic Self-Suspending Soft Real-Time Multiprocessor Task Systems
09/07/2011 Various group members Discussion of summer projects
08/31/2011 Risat Pathan Improved Schedulability Tests for Global Fixed-Priority Scheduling
08/24/2011 Alex Mills A Multiprocessor Server-Based Scheduler for Soft Real-time Tasks with Stochastic Execution Demand

Spring 2011

Date Presenter Topic
02/28/2011 Björn Brandenburg OS Infrastructure for Multiprocessor Real-Time Systems: Scheduling and Synchronization
02/21/2011 Bipasa Chattopadhyay Lookup Tables for Partitioned Scheduling
02/14/2011 Cong Liu Precedence Constraints
02/07/2011 Glenn Elliott GPUs
01/31/2011 Alex Mills Integer Programming
01/26/2011 Entire Group Research Plans for Semester
01/19/2011 No talk No talk (social lunch only)

Fall 2010

Date Presenter Topic
12/08/2010 Jeremy Erickson Tardiness Bounds for Global EDF with Deadlines Different from Periods
12/01/2010 No talk No RT Lunch (RTSS)
11/24/2010 No talk No RT Lunch (Thanksgiving Break)
11/17/2010 Mac Mollison The Industrial-Academic Interface: Success Stories from Academic-Industrial Collaboration
11/17/2010 Haohan Li An algorithm for scheduling certifiable mixed-criticality sporadic task systems
11/10/2010 Jonathan Herman Fault Tolerance (COMP790 rescheduled from Friday)
11/03/2010 None No RT Lunch
10/27/2010 Andrea Bastoni An Empirical Comparison of Global, Partitioned, and Clustered Multiprocessor EDF Schedulers
10/20/2010 Glenn Elliott Globally Scheduled Real-Time Multiprocessor Systems with GPUs
10/13/2010 Various group members Overview of recently submitted papers
10/6/2010 Mac Mollison Mixed-Criticality Real-Time Scheduling for Multicore Systems (PRP Waiver talk)
09/29/2010 Cong Liu Supporting Complex Applications with Precedence Constraints on Soft Real-Time Multiprocessors with No Utilization Loss
09/22/2010 Jeremy Erickson Improved Tardiness Bounds for Global EDF
09/15/2010 Andrea Bastoni Cache-Related Preemption and Migration Delays: Empirical Approximation and Impact on Schedulability (Continued)
09/08/2010 Andrea Bastoni Cache-Related Preemption and Migration Delays: Empirical Approximation and Impact on Schedulability
09/01/2010 No talk No talk (Social lunch only)

Spring 2010

Date Presenter Topic
4/21/2010 No talk No talk (Approaching end of semester)
4/14/2010 No talk No talk (Coincides with RTAS)
4/7/2010 Haohan Li Towards the design of certifiable mixed-criticality systems
Alex Mills Stochastic Analysis of Multiprocessor Global Soft Real-Time Scheduling
Cong Liu Scheduling suspendable pipelined tasks with non-preemptive sections in soft real-time multiprocessor systems
3/31/2010 Andrea Bastoni Update on overhead measurement methodology
Cong Liu Update on overhead analysis refactoring
3/24/2010 Cong Liu, Andrea Bastoni, etc. Discussion of overhead analysis and measurement for upcoming paper
3/17/2010 Cong Liu, etc. Discussion of overhead analysis for upcoming paper
3/10/2010 No talk No talk (Spring Break)
3/3/2010 Hennadiy Leontyev Dissertation practice talk
2/24/2010 Haohan Li Mixed-criticality scheduling: improved resource-augmentation results
2/17/2010 No talk No talk
2/10/2010 No talk No talk
2/3/2010 Hennadiy Leontyev Compositional Analysis Techniques for Multiprocessor Soft Real-Time Scheduling
1/27/2010 Jeremy Erickson Improved Tardiness Bounds for Global EDF
1/20/2010 Andrea Bastoni Discovering hypervisor overheads using micro and macrobenchmarks

Fall 2009

Date Presenter Topic
12/1/2009 Björn Brandenburg On the Implementation of Global Real-Time Schedulers
Hennadiy Leontyev Multiprocessor Extensions to Real-Time Calculus
11/25/2009 No talk No talk
11/18/2009 Alex Mills A Stochastic Framework for Multiprocessor Real-Time Scheduling
11/11/2009 Cong Liu Task Scheduling with Self Suspensions in Soft Real-Time Multiprocessor Systems
11/4/2009 Andrea Bastoni Working with high precision event timers (HPETs)
10/28/2009 No talk No talk
10/21/2009 Guruprasad Aphale BFS by Con Kolivas
10/14/2009 Haohan Li Mixed Criticality Schedulability
10/7/2009 Raphael Guerra A Gravitational Task Model
9/30/2009 No talk No talk
9/23/2009 Hennadiy Leontyev Compositional Analysis Techniques for Multiprocessor Real-Time Scheduling
9/16/2009 Cong Liu Supporting Pipelines In Soft Real-Time Multiprocessor Systems
9/9/2009 Björn Brandenburg Introduction to Sporadic Tasks and Real-Time Synchronization

Spring 2009

Date Presenter Topic
March 2009 Björn Brandenburg Tutorial: Getting Started with LITMUSRT Development
2/23/2009 John Calandrino On the Design and Implementation of a Cache-Aware Multicore Scheduler
2/16/2009 Björn Brandenburg Recap of the Transactional Memory Workshop held in conjunction with PPoPP'09
2/2/2009 Cong Liu Supporting Pipelines in Soft Real-Time Multiprocessor Systems

Note: Listing is incomplete.

Fall 2008

Date Presenter Topic
11/12/2008 Stephen Olivier A Brief Introduction to a Concise Overview to Transactional Memory
10/22/2008 Sanjoy Baruah Demand Bound Function Related Schedulability Tests
10/8/2008 Björn Brandenburg A Partial Overview of Real-Time Synchronization (Part 3)
10/1/2008 Björn Brandenburg A Partial Overview of Real-Time Synchronization (Part 2)
9/24/2008 Björn Brandenburg A Partial Overview of Real-Time Synchronization (Part 1)
9/17/2008 John Calandrino LinSched: The Linux Scheduler Simulator
9/10/2008 Björn Brandenburg An Overview of Litmus
9/3/2008 Hennadiy Leontyev Flexible Support for Soft Real-Time Multiprocessing Systems
8/27/2008 John Calandrino Cache-Aware Real-Time Scheduling on Multicore Platforms

Pre 2008

Real-Time Lunch has been around forever (i.e., longer than the current grad student generation), but the old schedules have been lost in the sands of time. Rumor has it that the talks were great, though. ;-)