[hpc-announce] Call for Papers: Fault-Tolerance for HPC at Extreme Scale Workshop (FTXS 2012)

[Stearley, Jon]

CALL FOR PAPERS

2nd International Workshop on
Fault-Tolerance for HPC at Extreme Scale (FTXS 2012)

In conjunction with
The 42nd Annual IEEE/IFIP International Conference on
Dependable Systems and Networks (DSN 2012)
Boston, Massachusetts, USA on June 25-28, 2012.

WORKSHOP MOTIVATION
For the HPC community, a new scaling in numbers of processing elements
has superseded the historical trend of Moore's Law scaling in
processor frequencies. This progression from single core to multi-core
and many-core will be further complicated by the community's immanent
migration from traditional homogeneous architectures to ones that are
heterogeneous in nature. As a consequence of these trends, the HPC
community is facing rapid increases in the number, variety, and
complexity of components, and must thus overcome increases in
aggregate fault rates, fault diversity, and complexity of isolating
root cause.

Recent analyses demonstrate that HPC systems experience simultaneous
(often correlated) failures. In addition, statistical analyses suggest
that silent soft errors can not be ignored anymore, because the
increase of components, memory size and data paths (including
networks) make the probability of silent data corruption (SDC)
non-negligible. The HPC community has serious concerns regarding this
issue and application users are less confident that they can rely on a
correct answer to their computations. Other studies have indicated a
growing divergence between failure rates experienced by applications
and rates seen by the system hardware and software. At Exascale, some
scenarios project failure rates reaching one failure per hour. This
conflicts with the current checkpointing approach to fault tolerance
that requires up to 30 minutes to restart a parallel execution on the
largest systems.  Lastly, stabilization periods for the largest
systems are already significant, and the possibility that these could
increase in length is of great concern.  During the Approaching
Exascale report at SC11, DOE program managers identified resilience
as a black swan - the most difficult under-addressed issue facing HPC.

OPEN QUESTIONS
What does the fault-tolerance community need to do in order to be
prepared to face the challenges of extreme scale computing? What is
needed to keep applications with billions of threads of parallelism up
and running on systems that fail tens of times per day? As models
predict less than 50% efficiency of traditional checkpoint/restart
methods on future systems, are we ready to pay the cost of full
redundancy, effectively performing redundant multi-threading (RMT)
across entire systems? Do we even have the infrastructure necessary to
implement an RMT strategy?

How is the supercomputing community going to efficiently isolate
failures on enormously complex systems? Is there any chance to
understand these systems in such a way that some failure could be
predicted with enough accuracy and anticipation to trigger useful
failure avoidance actions? What can the community do to protect
applications from SDC in memory and logic? How far the user and the
programmer should be involved in managing faults? What are the most
promising self-healing numerical methods?

GOALS
The goals of this workshop are to consider these complex questions, to
discuss the unique limitations that extreme scale and complexity
impose on traditional methods of fault-tolerance, and to explore new
strategies for dealing with those challenges.

PAPER SUBMISSIONS
Submissions are solicited in the following categories:
* Regular papers presenting innovative ideas improving the state of the art.
* Experience papers discussing the issues seen on existing extreme-scale
 systems, including some form of analysis and evaluation.
* Extended abstracts proposing disruptive ideas in the field,
 including some form of preliminary results

Submissions shall be sent electronically, must conform to IEEE
conference proceedings style and should not exceed six pages including
all text, appendices, and figures.

All papers will be published, as workshop papers, in the DSN 2012 proceedings
and on IEEE Xplore.

TOPICS
Assuming hardware and software errors will be inescapable at extreme
scale, this workshop will consider aspects of fault tolerance peculiar
to extreme scale that include, but are not limited to:
* Quantitative assessments of cost in terms of power, performance, and
 resource impacts of fault-tolerant techniques, such as checkpoint
 restart, that are redundant in space, time or information
* Novel fault-tolerance techniques and implementations of emerging
 hardware and software technologies that guard against silent data
 corruption (SDC) in memory, logic, and storage and provide
 end-to-end data integrity for running applications; Studies of
 hardware / software tradeoffs in error detection, failure
 prediction, error preemption, and recovery
* Advances in monitoring, analysis, and control of highly complex systems
* Highly scalable fault-tolerant programming models
* Metrics and standards for measuring, improving and enforcing the
 need for and effectiveness of fault-tolerance
* Failure modeling and scalable methods of reliability, availability,
 performability and failure prediction for fault-tolerant HPC
 systems
* Scalable Byzantine fault tolerance and security from single-fault
 and fail-silent violations
* Benchmarks and experimental environments, including fault-injection
 and accelerated lifetime testing, for evaluating performance of
 resilience techniques under stress

IMPORTANT DATES
Submission of papers:   March 16, 2012
Author notification:    April 6, 2012
Camera ready papers:    April 27, 2012
Workshop:               June 25, 2012

WORKSHOP ORGANIZERS
Nathan DeBardeleben - Los Alamos National Laboratory
Jon Stearley - Sandia National Laboratories
Franck Cappello - INRIA & University of Illinois at Urbana Champaign

PROGRAM COMMITTEE
George Bosilca - University of Tennessee, Knoxville
Greg Bronevetsky - Lawrence Livermore National Laboratory
John Daly - Department of Defense
Christian Engelmann - Oak Ridge National Laboratory
Kurt Ferreira - Sandia National Laboratories
Ana Gainaru - University of Illinois, Urbana-Champaign
Hideyiki Jitsumoto - University of Tokyo
Zbigniew Kalbarczyk - University of Illinois, Urbana-Champaign
Rakesh Kumar - University of Illinois, Urbana-Champaign
Zhiling Lan - Illinois Institute of Technology
Yve Robert - ENS Lyon
Wuyts Roel - (Intel ExaScience Lab, Leuven, Belgium) and KU Leuven (Leuven, Belgium)
Felix Salfner - SAP Innovation Center Potsdam
Mitsuhisa Sato - University of Tsukuba
Stephen Scott - Oak Ridge National Laboratory and Tennessee Tech University

See http://institute.lanl.gov/resilience/workshops/ftxs2012/
and http://2012.dsn.org for more information.


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