UNDER construction: The agenda below is not the final one
This event is supported by INRIA, UIUC, NCSA, ANL, BSC, PUF NEXTGEN,
Main Topics | Schedule | Speaker | Affiliation | Type of presentation | Title (tentative) | Download |
| Sunday June 8th |
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Dinner Before the Workshop | 7:30 PM | Only people registered for the dinner (included) |
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| Mercure Hotel |
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Workshop Day 1 | Monday June 9th |
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| TITLES ARE TEMPORARY (except if in bold font) |
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Registration | 08:00 | At Inria Sophia Antipolis |
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Welcome and Introduction Amphitheatre | 08:30 | Franck Cappello + Marc Snir + Yves Robert + Bill Kramer + Jesus Labarta | INRIA&UIUC&ANL&BSC | Background | Welcome, Workshop objectives and organization | |
Plenary Amphitheatre Chair: Franck Cappello | 09:00 | Jesus Labarta | BSC | Background | Presentation of BSC activities |
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Mini Workshop Math app. Room 1 | ||||||
| Chair: Paul Hovland | 09:30 | Bill Gropp | UIUC | |||
| 10:00 | Jed Brown | ANL | ||||
| 10:30 | Break |
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11:00 | Laureant Hascoet | Inria |
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| 11:30 | Luke Olson | UIUC | ||||
| 12:00 | Lunch | |||||
Chair: Bill Gropp | 13:30 | Vincent Baudoui | Inria |
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| 14:00 | Paul Hovland | ANL |
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| 14:30 | Stephane Lateri | Inria | ||||
Mini Workshop I/O Room 1 | ||||||
| Chair: Rob Ross | 15:00 | Wolfgang Frings | JSC | |||
| 15:30 | Break | |||||
16:00 | Jonathan Jenkins | ANL |
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16:30 | Matthieu Dorier | Inria | Omnisc'IO: A Grammar-Based Approach to Spatial and Temporal I/O Patterns Prediction | |||
| 17:00 | Adjourn | |||||
18:30 | Bus for dinner (dinner included) | |||||
Mini Workshop Runtime Room 2 |
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Chair: Sanjay Kale | 9:30 | Pavan Balaji | ANL | |||
| 10:00 | Augustin Degomme | Inria | ||||
| 10:30 | Break |
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| 11:00 | Ronak Buch | UIUC |
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| 11:30 | Victor Lopez | BSC |
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| 12:00 | Lunch | |||||
| Chair: Jesus Labarta | 13:30 | Xin Zhao | ANL | |||
| 14:00 | Brice Videau | Inria | ||||
| 14:30 | Pieter Bellens | BSC | ||||
| 15:00 | Martin Quison | Inria | ||||
| 15:30 | Break | |||||
| Chair: Martin Quison | 16:00 | Florentino Sainz | BSC | |||
| 16:30 | Jean-François Mehaud | Inria | ||||
| 17:00 | Adjourn | |||||
18:30 | Bus for dinner (dinner included) | |||||
Workshop Day 2 | Tuesday June 10th | |||||
Formal opening Amphitheatre Chair: Bill Kramer | 08:30 | Marc Snir + Franck Cappello | INRIA&UIUC&ANL | Background | ||
| 08:40 | TBD | Inria | Background | Inria updates and vision of the collaboration | TBD |
| 08:50 | TBD | ANL | Background | ANL updates vision of the collaboration | TBD |
Plenary Amphitheatre | 09:00 | Wolfgan Frings | JSC | Background | JSC activities in HPC | TBD |
Mini Workshop I/O Room 1 | ||||||
Chair: Gabriel Antoniu | 09:30 | Rob Ross | ANL |
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| 10:00 | Guillaume Aupy | Inria |
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| 10:30 | Break | |||||
| 11:00 | Lokman Rahmani | Inria | ||||
| 11:30 | ??? |
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| 12:00 | Lunch |
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Mini Workshop Runtime | ||||||
| Chair: Jean François Mehaud | 09:30 | Sanjay Kale | UIUC | |||
| 10:00 | Francois Tessier | Inria | ||||
| 10:30 | Break | Inria | ||||
| 11:00 | Arnaud Legrand | Inria | ||||
| 11:30 | Grigori Fursin | |||||
| 12:00 | Lunch | |||||
Formal encouragments Amphitheatre Chair: Franck Cappello | 13:45 | Ed Seidel | UIUC | Background | NCSA updates and vision of the collaboration | |
Plenary Amphitheatre Chair: Wolfgan Frings | 14:00 | Yves Robert | Inria | |||
| 14:30 | Marc Snir | ANL | ||||
| 15:00 | Break | |||||
Mini Workshop Resilience | ||||||
| Chair: Franck Cappello | 15:30 | Luc Jaulmes | BSC | |||
| 16:00 | Ana Gainaru | UIUC | ||||
| 16:30 | Tatiana Martsinkevich | Inria | ||||
| 17:00 | Adjourn | |||||
Mini Workshop Cloud & Cyber-infrastructure Room 2 | ||||||
| Chair: Kate Keahey | 15:30 | Justin Wozniak | ANL | |||
| 16:00 | Shaowen Wang | UIUC | CyberGIS @ Scale | |||
| 16:30 | Christine Morin | Inria | ||||
| 17:00 | Adjourn | |||||
| 18:30 | Bus for Dinner (dinner included) |
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Workshop Day 3 | Wednesday June 11th |
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Plenary Amphitheatre Chair: Jesus Labarta | 8:30 | Bill Kramer | NCSA |
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Mini Workshop Resilience | ||||||
| Chair: Yves Robert | 9:00 | Leonardo Bautista Gomez | ANL | |||
| 9:30 | Slim Bougera | Inria | ||||
| 10:00 | Break | |||||
| 10:30 | Sheng Di | ANL | ||||
| 11:00 | Franck Cappello | ANL | Five open questions on Resilience for the Exascale era | |||
Plenary Amphitheatre | 11:30 | Closing | ||||
| 12:00 | Lunch (included) | |||||
Mini Workshop Cloud & Cyber-infrastructure | ||||||
| Chair: Christine Morin | 09:00 | Kate Keahey | ANL | |||
| 09:30 | Radu Tudoran | Inria | ||||
| 10:00 | Break | |||||
| 10:30 | Sri Hari Krishna Narayanan | ANL | ||||
| 11:00 | Timothy Armstrong | ANL | ||||
Plenary Amphitheatre | 11:30 | Closing | ||||
| 12:00 | Lunch (included) |
Abstract
Matthieu Dorier
Title: Omnisc'IO: A Grammar-Based Approach to Spatial and Temporal I/O Patterns Prediction
The increasing gap between the computation performance of post-petascale machines and the performance of their I/O subsystem has motivated many I/O optimizations including prefetching, caching, and scheduling techniques. To further improve these techniques, modeling and predicting spatial and temporal I/O patterns of HPC applications as they run have become crucial.
This presentation introduces Omnisc'IO, an original approach that aims to make a step forward toward an intelligent I/O management of HPC applications in next-generation post-petascale supercomputers. It builds a grammar-based model of the I/O behavior of any HPC application and uses that model to predict when future I/O operations will occur, as well as where and how much data will be accessed. Omnisc'IO is transparently integrated into the POSIX and MPI I/O stacks and does not require any modification to application sources or to high level I/O libraries. It works without prior knowledge of the application, and converges to accurate predictions within a couple of iterations only. Its implementation is efficient both in computation time and in memory footprint. Omnisc'IO was evaluated with four real HPC applications -- CM1, Nek5000, GTC, and LAMMPS -- using a variety of I/O backends ranging from simple POSIX to Parallel HDF5 on top of MPI I/O. Our experiments show that Omnisc'IO achieves from 79.5% to 100% accuracy in spatial prediction and an average precision of temporal predictions ranging from 0.2 seconds to less than a millisecond.