SC06 - PERI

SC06

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Contents

Introduction

Many PERI researchers and collaborators attend the SC06 meeting in Tampa, Florida from Nov. 11-17, 2006. This page records planned activities and notes from that meeting.

SC06 home page: http://sc06.supercomp.org/

PERI + collaborators meeting

  • Date: Monday, Nov 13
  • Time: 9 am - 12 noon
  • Location:
    • Meeting Room 8 (Level 3)
    • Tampa Marriott Waterside
    • 700 South Florida Avenue
    • Tampa, FL 33602
    • Phone: 813-221-4900

A continental breakfast will be served at the start of the meeting.

Please note that there will be no network connections provided. There are no SCinet wireless hubs planned for this floor.

Below are the slides Bob Lucas presented on the 13th:

PERI overview

BOFs

Evaluating Petascale Infrastructure Systems: Benchmarks, Models, and Applications

  • Session: Evaluating Petascale
  • Event Type: BOF
  • Date: Wednesday November 15th
  • Time: 5:30pm - 7:00pm
  • Session Chair: Robert J. Fowler
  • Leader(s): Robert J Fowler, Allan Snavely, Daniel A Reed
  • Location: 17
  • Abstract:

This BOF is a venue for presentations and discussions of progress in the dual problems of evaluating the performance (including reliability) of petascale computing systems and of developing application codes that scale to run effectively on such systems. We therefore invite participation by representatives of large-system vendors, funding agencies, infrastructure operators, application-development groups, and others that have a stake in design, operation, and successful use of these systems.

Technical topics to be addressed include: scaling properties of benchmark suites; scalable machine models; application modeling to predict scaling for future machines; the problem of preparing applications for petascale environments; and the role of all of these topics in petascale acquisitions.

At this session we will start planning for a series of workshops on the subject.

Is 99% Utilization of a Supercomputer a Good Thing?

  • Session: 99% Utilization
  • Event Type: BOF
  • Date: Thursday November 16th
  • Time: 12:15pm - 1:15pm
  • Session Chair: Allan Snavely
  • Leader(s): Allan Snavely, Jeremy Kepner
  • Location: 18-19
  • Abstract:

This BOF will continue debate revolving around productivity metrics for supercomputers. At several recent user forums, consensus emerged that it is not possible to develop petascale applications without interactive access to thousands of processors. But most large systems are managed via a batch scheduler with long (and unpredictable) queue wait times. Most batch scheduler policies assume high system utilization as "good". But high utilization dilates average queue wait time and increases wait-time unpredictability, both of which are "bad" for application developer's productivity. What are the options to address these conflicting implications for running a supercomputer at high system utilization? Is it possible to manage a supercomputer to meet the high-throughput demands of stable applications and the on-demand access requirements of large-scale code developers concurrently? Or do these two usage scenarios inherently conflict? Participants will explain and debate several creative solutions that could enable high throughput and high availability for program development.

PAPI Users Group

  • Session: PAPI Users Group
  • Event Type: BOF
  • Date: Thursday November 16th
  • Time: 12:15pm - 1:15pm
  • Session Chair: Philip J. Mucci
  • Leader(s): Philip J. Mucci, Shirley V. Moore
  • Location: 1-2
  • Abstract:

The PAPI cross-platform interface to the hardware performance counters available on most microprocessors has become widely adopted and used for application performance analysis. PAPI is now incorporated into a number of end-user performance analysis tools, including both research and vendor tools. In years past, the PAPI Users BOF has provided an excellent opportunity for interaction between PAPI developers, performance tool developers, and other users of PAPI. Several suggestions from past BOFs have been implemented in subsequent versions of PAPI. The purpose of this BOF will be to present the features of the latest release of PAPI and to get feedback from tool developers and PAPI end-users on these features and on future directions for PAPI. Support for emerging architectures and interfaces, such as the Cell multiprocessor, and the perfmon2 effort to implement a standard Linux kernel interface to access the hardware counters, will also be discussed.

TOP500 Supercomputer

  • Session: TOP500
  • Event Type: BOF
  • Date: Tuesday, November 14
  • Time: 5:30pm - 7:00pm
  • Session Chair: Erich Strohmaier
  • Leader(s): Erich Strohmaier
  • Location: Ballroom B-C
  • Abstract:

Now in its 14th year, the TOP500 list of supercomputers serves as a "Who's Who" in the field of High Performance Computing (HPC). The TOP500 list was started in 1993 as a project to compile a list of the most powerful supercomputers in the world. It has evolved from a simple ranking system to a major source of information to analyze trends in HPC. The 28th TOP500 list will be published in November 2006 just in time for SC06.

This BoF will present detailed analyses of the TOP500 and discuss the changes in the HPC marketplace during the past years. This includes the presentation of a new metric to track power consumption and updates on various benchmark initiatives such as the HPC Challenge benchmarks and the APEX-Map project. The BoF is meant as an open forum for discussion and feedback between the TOP500 authors and the user community.

PERI-related Booth Talks

PERI or PERI-related activities were mentioned in presentations or posters at booths in the Exhibit Hall.

Oak Ridge National Laboratory Booth

Performance Engineering Research Institute

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