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Main Topics | Schedule | Speaker | Affiliation | Type of presentation | Title (tentative) | Download |
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Dinner Before the Workshop | 7:30 PM | Only people registered for the dinner |
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Workshop Day 1 | Wednesday June 12th |
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| TITLES ARE TEMPORARY (except if in bold font) |
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Registration | 08:00 |
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Welcome and Introduction | 08:30 | Marc Snir + Franck Cappello | INRIA&UIUC&ANL | Background | Welcome, Workshop objectives and organization |
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| 08:45 | Bill Kramer | UIUC | Background | NCSA updates and vision of the collaboration |
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| 09:00 | Marc Snir | ANL | Background | ANL updates vision of the collaboration |
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| 09:15 | Frederic Desprez | Inria | Background | INRIA updates and vision of the collaboration |
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Big systems | 9:30 | Bill Kramer | UIUC | Background | Update on BlueWaters |
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| 10:00 | Break |
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| 10:30 | Mitsuhisa Sato | U. Tsukuba & AICS | Background | AICS and the K computer |
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CANCELED | 11:00 | Paul Gibbon | Juelich | Background | Meeting the Exascale Challenge at the Juelich Supercomputing Centre. |
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Resilience&fault tolerance and simulation | 11:00 | Marc Snir | ANL&UIUC | Report | ICIS report on Resilience |
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11:30 | Vincent Baudoui | Total & ANL | Joint-Results | Round-off error and silent soft error propagation in exascale applications | ||
| 12:00 | Lunch |
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Numerical Algorithms | 13:30 | Bill Gropp | UIUC | Background | Topics for Collaboration in Numerical Libraries |
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14:00 | Paul Hoveland | ANL | Background | Argonne strategic plan in applied math |
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| 14:30 | Frederic Nataf | INRIA&P6 | Background | Toward black-box adaptive domain decomposition methods |
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| 15:00 | Luke Olson | UIUC | Background | Opportunities in developing a more robust and scalable multigrid solver |
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15:30 | Break | |||||
| 16:00 | Marc Baboulin | INRIA | Background | Using condition numbers to assess numerical quality in high-performance computing applications |
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Resilience&fault tolerance and simulation Chair: Franck Cappello | 16:30 | Bogdan Nicolae | IBM | Joint Result | AI-Ckpt: Leveraging Memory Access Patterns for Adaptive Asynchronous Incremental Checkpointing | |
17:00 | Martin Quison | INRIA | Result | Improving Simulations of MPI Applications Using A Hybrid Network Model with Topology and Contention Support | ||
| 17:30 | Adjourn |
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| 19:00 | Dinner |
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Workshop Day 2 | Thursday June 13th |
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Programming Models (cont.) | 08:30 | Jean-François Mehaut | INRIA | Result | Progresses in the European FP7 Mont-Blanc 1 project and objectives of its follow up: Mont-Blanc 2 |
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| 09:00 | Rajeev Thakur | ANL | Background | TBA |
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| 09:30 | Andra Ecaterina Hugo | INRIA | Results | TBA |
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| 10:00 | Celso Mendes | UIUC | Background | Dynamic Load Balancing for Weather Models via AMPI |
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| 10:30 | Break |
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Big Data, I/O, Visualization | 11:00 | Dries Kimpe | ANL | Results | TBA |
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| 11:30 | Gilles Fedak | INRIA | Result | Active Data: A Programming Model to Manage Data Life Cycle Across Heterogeneous Systems and Infrastructures |
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| 12:00 | Matthieu Dorrier | INRIA | Joint Result | Data Analysis of Ensemble Simulations: an In Situ Approach using Damaris |
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| 12:30 | Ian Foster | ANL | Background | TBA |
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| 13:00 | Lunch |
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Mini Workshop1 |
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Resilience | 14:00 | Ana Gainaru | UIUC | Results | Failure prediction on Challenges in predicting failures on the Blue Waters system. |
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| 14:30 | Xiang Ni | UIUC | Results | ACR: Automatic Checkpoint/Restart for Soft and Hard Error Protection. |
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| 15:00 | Tatiana | INRIA & ANL | Result | TBA |
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| 15:30 | Mohamed Slim Bouguerra | INRIA & ANL | Result | TBA |
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| 16:00 | Break |
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| 16:30 | Amina Guermouche | UVSQ | Result | Multi-criteria Checkpointing Strategies: Response-time versus Resource Utilization |
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| 17:00 | Thomas Ropars | EPFL | ResultTBA | Towards efficient replication of HPC applications to deal with crash failures |
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| 17h30 | Mehdi Diouri | INRIA | Result | ECOFIT: A Framework to Estimate Energy Consumption of Fault Tolerance Protocols for HPC Applications |
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| 18:00 | Adjourn |
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Mini Workshop2 |
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Numerical Algorithms and Libraries | 14:00 | Laura Grigori | INRIA | Result | TBA |
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| 14:30 | Stefan Wild | ANL | Result | TBA |
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| 15:00 | Frederic Hecht | INRIA/P6 | Result | TBA |
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| 15:30 | Jed Brown | ANL | Result | Vectorization, communication aggregation, and reuse in stochastic and temporal dimensions |
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| 16:00 | Break |
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| 16:30 | Yushan Wang | INRIA P11 | Result | TBA |
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| 17:00 | Jean Utke | ANL | Result | Designing and implementing a tool-indedendent, adjoinable MPI wrapper library |
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| 17:30 | Laurent Hascoet | INRIA | Result | The adjoint of MPI one-sided communications |
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| 18:00 | Adjourn |
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| 19:00 | Banquet |
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| Lyon |
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Workshop Day 3 | Friday June 14th |
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Mini Workshop1 (cont.) |
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Resilience | 08:30 | Di Sheng | INRIA | Result | TBA |
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| 09:00 | Guillaume Aupy | INRIA | Result | TBA |
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| 09:30 | Discussion |
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| 10:00 | Break |
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Mini Workshop3 | 10:30 | Guillaume Mercier | INRIA | Result | TBA |
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Programming and Scheduling | 11:00 | Vincent Lanore | INRIA | Result | TBA |
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| 11:30 | Anne Benoit | INRIA | Result | Energy-efficient scheduling |
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| 12:00 | François Tessier | INRIA | Result | TBA |
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| 12:30 | Discussions |
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| 13:00 | Closing and Lunch |
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Mini Workshop2 (cont.) |
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Numerical Algorithms and Libraries | 08:30 | François Pellegrini | INRIA | Result | Shared memory parallel algorithms in Scotch 6 |
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| 09:00 | Luc Giraud | INRIA | Result | TBA |
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| 09:30 | Discussions |
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| 10:00 | Break |
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Mini Workshop4 | 10:30 | Kate Keahey | ANL | Result | TBA |
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Clouds | 11:00 | Gabriel Antoniu | INRIA | Result | TBA |
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| 11:30 | Christian Perez | INRIA | Result | TBA |
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| 12:00 | Eddy Caron | INRIA | Result | TBA |
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| 12:30 | Discussions |
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| 13:00 | Closing and Lunch |
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As the scale of machines increase, the HPC community has seen a steady decrease in reliability of the systems, and hence an increase in the down time. Moreover, soft errors such as bit flips do not prevent execution but generate incorrect results. Checkpoint/restart is by far the most commonly used fault tolerance method for hard errors, and its efficiency and scalability has been improved with recent research. In this talk, we will discuss a holistic methodology for automatically detecting and recovering from soft or hard faults with minimal application intervention. This is demonstrated by ACR: an automatic checkpoint/restart framework that performs application replication and automatically adapts the checkpoint period using online information about the current failure rate. ACR performs an application- and user-oblivious recovery. We empirically test ACR by injecting failures that follow different distributions for five applications and show low overhead when scaled to 131,072 cores. We also analyze the interaction between soft and hard errors and propose three recovery schemes that explore the trade-off between performance and reliability requirements.
Thomas Ropars,
Towards efficient replication of HPC applications to deal with crash failures
Ana Gainaru
Challenges in predicting failures on the Blue Waters system.
As the size of supercomputers increases, so does the probability of a single component failure within a time frame. With the growing operation cost of extreme scale supercomputers like Blue Waters, the act of predicting failures to prevent the loss of computation hours becomes cumbersome and presents a couple of challenges not encountered for smaller systems. The talk will focus on presenting online failure prediction and analyzing the Blue Water system. We show to what extent online failure prediction is a possibility at petascale and what are the challenges in achieving an effective fault prevention mechanism for Blue Waters.