7 Search Results for "Nagel, Wolfgang"

Document
DOI: 10.4230/DagMan.4.1.28
Co-Design of Systems and Applications for Exascale (Dagstuhl Perspectives Workshop 12212)

Authors: Arndt Bode, Adolfy Hoisie, Dieter Kranzlmüller, Wolfgang E. Nagel, and Christian Straube

Published in: Dagstuhl Manifestos, Volume 4, Issue 1 (2014)

Abstract
The Dagstuhl Perspectives Workshop 12212 on "Co-Design of Systems and Applications for Exascale" is reaching into the future, where exascale systems with their capabilities provide new possibilities and challenges. The goal of the workshop has been to identify concrete barriers and obstacles, and to discuss ideas on how to overcome them. It is a common agreement that co-design across all layers, algorithms, applications, programming models, run-time systems, architectures, and infrastructures, will be required. The discussion between the experts identified a series of requirements on exascale co-design efforts, as well as concrete recommendations and open questions for future research.
Cite as

Arndt Bode, Adolfy Hoisie, Dieter Kranzlmüller, Wolfgang E. Nagel, and Christian Straube. Co-Design of Systems and Applications for Exascale (Dagstuhl Perspectives Workshop 12212). In Dagstuhl Manifestos, Volume 4, Issue 1, pp. 28-39, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2015)

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@Article{bode_et_al:DagMan.4.1.28,
  author =	{Bode, Arndt and Hoisie, Adolfy and Kranzlm\"{u}ller, Dieter and Nagel, Wolfgang E. and Straube, Christian},
  title =	{{Co-Design of Systems and Applications for Exascale (Dagstuhl Perspectives Workshop 12212)}},
  pages =	{28--39},
  journal =	{Dagstuhl Manifestos},
  ISSN =	{2193-2433},
  year =	{2015},
  volume =	{4},
  number =	{1},
  editor =	{Bode, Arndt and Hoisie, Adolfy and Kranzlm\"{u}ller, Dieter and Nagel, Wolfgang E. and Straube, Christian},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagMan.4.1.28},
  URN =		{urn:nbn:de:0030-drops-49663},
  doi =		{10.4230/DagMan.4.1.28},
  annote =	{Keywords: Exascale, Co-Deisgn, Scalability, Power Efficiency, Reliability}
}
Document
DOI: 10.4230/DagRep.2.5.71
Co-Design of Systems and Applications for Exascale (Dagstuhl Perspectives Worksop 12212)

Authors: Arndt Bode, Adolfy Hoisie, Dieter Kranzlmüller, and Wolfgang E. Nagel

Published in: Dagstuhl Reports, Volume 2, Issue 5 (2012)

Abstract
With more and more machines achieving petascale capabilities, the focus is shifting towards the next big barrier, exascale computing and its possibilities and challenges. There is a common agreement that using machines on this level will definitively require co-design of systems and applications, and corresponding actions on different levels of software, hardware, and the infrastructure. Defining the vision of exascale computing for the community as providing capabilities on levels of performance at extreme scales, and identifying the role and mission of the involved experts from computer science has laid the basis for further discussions. By reflecting on the current state of petascale machines and technologies and identifying known bottlenecks and pitfalls looming ahead, this workshop derived the concrete barriers on the road towards exascale and presented some ideas on how to overcome them, as well as raising open issues to be addressed in future leading-edge research on this topic.
Cite as

Arndt Bode, Adolfy Hoisie, Dieter Kranzlmüller, and Wolfgang E. Nagel. Co-Design of Systems and Applications for Exascale (Dagstuhl Perspectives Worksop 12212). In Dagstuhl Reports, Volume 2, Issue 5, pp. 71-92, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@Article{bode_et_al:DagRep.2.5.71,
  author =	{Bode, Arndt and Hoisie, Adolfy and Kranzlm\"{u}ller, Dieter and Nagel, Wolfgang E.},
  title =	{{Co-Design of Systems and Applications for Exascale (Dagstuhl Perspectives Worksop 12212)}},
  pages =	{71--92},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2012},
  volume =	{2},
  number =	{5},
  editor =	{Bode, Arndt and Hoisie, Adolfy and Kranzlm\"{u}ller, Dieter and Nagel, Wolfgang E.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagRep.2.5.71},
  URN =		{urn:nbn:de:0030-drops-36525},
  doi =		{10.4230/DagRep.2.5.71},
  annote =	{Keywords: Exascale, Co-Design, Scalability, Power Efficiency, Reliability}
}
Document
DOI: 10.4230/DagSemProc.05501.1
05501 Abstracts Collection – Automatic Performance Analysis

Authors: Hans Michael Gerndt, Allen Malony, Barton P. Miller, and Wolfgang Nagel

Published in: Dagstuhl Seminar Proceedings, Volume 5501, Automatic Performance Analysis (2006)

Abstract
From 12.12.05 to 16.12.05, the Dagstuhl Seminar 05501 ``Automatic Performance Analysis'' was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.
Cite as

Hans Michael Gerndt, Allen Malony, Barton P. Miller, and Wolfgang Nagel. 05501 Abstracts Collection – Automatic Performance Analysis. In Automatic Performance Analysis. Dagstuhl Seminar Proceedings, Volume 5501, pp. 1-13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{gerndt_et_al:DagSemProc.05501.1,
  author =	{Gerndt, Hans Michael and Malony, Allen and Miller, Barton P. and Nagel, Wolfgang},
  title =	{{05501 Abstracts Collection – Automatic Performance Analysis}},
  booktitle =	{Automatic Performance Analysis},
  pages =	{1--13},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{5501},
  editor =	{Hans Michael Gerndt and Allen Malony and Barton P. Miller and Wolfgang Nagel},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.05501.1},
  URN =		{urn:nbn:de:0030-drops-5085},
  doi =		{10.4230/DagSemProc.05501.1},
  annote =	{Keywords: Parallel computing, performance analysis, programming environments}
}
Document
DOI: 10.4230/DagSemProc.05501.2
05501 Summary – Automatic Performance Analysis

Authors: Hans Michael Gerndt, Allen Malony, Barton P. Miller, and Wolfgang Nagel

Published in: Dagstuhl Seminar Proceedings, Volume 5501, Automatic Performance Analysis (2006)

Abstract
The Workshop on Automatic Performance Analysis (WAPA 2005, Dagstuhl Seminar 05501), held December 13-16, 2005, brought together performance researchers, developers, and practitioners with the goal of better understanding the methods, techniques, and tools that are needed for the automation of performance analysis for high performance computing.
Cite as

Hans Michael Gerndt, Allen Malony, Barton P. Miller, and Wolfgang Nagel. 05501 Summary – Automatic Performance Analysis. In Automatic Performance Analysis. Dagstuhl Seminar Proceedings, Volume 5501, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{gerndt_et_al:DagSemProc.05501.2,
  author =	{Gerndt, Hans Michael and Malony, Allen and Miller, Barton P. and Nagel, Wolfgang},
  title =	{{05501 Summary – Automatic Performance Analysis}},
  booktitle =	{Automatic Performance Analysis},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{5501},
  editor =	{Hans Michael Gerndt and Allen Malony and Barton P. Miller and Wolfgang Nagel},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.05501.2},
  URN =		{urn:nbn:de:0030-drops-5069},
  doi =		{10.4230/DagSemProc.05501.2},
  annote =	{Keywords: Automatic Performance Analysis, Parallel Computers, Performance Tuning}
}
Document
DOI: 10.4230/DagSemProc.05501.3
Development and Tuning Framework of Master/Worker Applications

Authors: Paola Caymes-Scutari, Anna Morajko, Eduardo César, Genaro Costa, José G. Mesa, Tomàs Margalef, Joan Sorribes, and Emilio Luque

Published in: Dagstuhl Seminar Proceedings, Volume 5501, Automatic Performance Analysis (2006)

Abstract
Parallel/distributed programming is a complex task that requires a high degree of expertise to fulfill the expectations of high performance computation. The Master/Worker paradigm is one of the most commonly used because it is easy to understand and there is a wide range of applications that match this paradigm. However, there are certain features, such as data distribution and the number of workers that must be tuned properly to obtain adequate performance. In most cases such features cannot be tuned statically since they depend on the particular conditions of each execution. In this paper, we show a dynamic tuning environment that is based on a theoretical model of Master/Worker behavior and allows for the adaptation of such applications to the dynamic conditions of execution. The environment includes a pattern based application development framework that allows the user to concentrate on the design phase and makes it easier to overcome performance bottlenecks.
Cite as

Paola Caymes-Scutari, Anna Morajko, Eduardo César, Genaro Costa, José G. Mesa, Tomàs Margalef, Joan Sorribes, and Emilio Luque. Development and Tuning Framework of Master/Worker Applications. In Automatic Performance Analysis. Dagstuhl Seminar Proceedings, Volume 5501, pp. 1-6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{caymesscutari_et_al:DagSemProc.05501.3,
  author =	{Caymes-Scutari, Paola and Morajko, Anna and C\'{e}sar, Eduardo and Costa, Genaro and Mesa, Jos\'{e} G. and Margalef, Tom\`{a}s and Sorribes, Joan and Luque, Emilio},
  title =	{{Development and Tuning Framework of Master/Worker Applications}},
  booktitle =	{Automatic Performance Analysis},
  pages =	{1--6},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{5501},
  editor =	{Hans Michael Gerndt and Allen Malony and Barton P. Miller and Wolfgang Nagel},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.05501.3},
  URN =		{urn:nbn:de:0030-drops-5057},
  doi =		{10.4230/DagSemProc.05501.3},
  annote =	{Keywords: Dynamic tuning, performance analysis, performance model}
}
Document
DOI: 10.4230/DagSemProc.05501.4
Holistic Hardware Counter Performance Analysis of Parallel Programs

Authors: Brian J. N. Wylie, Bernd Mohr, and Felix Wolf

Published in: Dagstuhl Seminar Proceedings, Volume 5501, Automatic Performance Analysis (2006)

Abstract
The KOJAK toolkit has been augmented with refined hardware performance counter support, including more convenient measurement specification, additional metric derivations and hierarchical structuring, and an extended algebra for integrating multiple experiments. Comprehensive automated analysis of a hybrid OpenMP/MPI parallel program, the ASC Purple sPPM benchmark, is demonstrated with performance experiments on equisized POWER4-II-based IBM Regatta p690+ cluster, Opteron-based Cray XD1 cluster and UltraSPARC-IV-based Sun Fire E25000 systems. Automatically assessed communication and synchronisation performance properties, combined with a rich set of measured and derived counter metrics, provide a holistic analysis context and facilitate multi-platform comparison.
Cite as

Brian J. N. Wylie, Bernd Mohr, and Felix Wolf. Holistic Hardware Counter Performance Analysis of Parallel Programs. In Automatic Performance Analysis. Dagstuhl Seminar Proceedings, Volume 5501, pp. 1-30, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{wylie_et_al:DagSemProc.05501.4,
  author =	{Wylie, Brian J. N. and Mohr, Bernd and Wolf, Felix},
  title =	{{Holistic Hardware Counter Performance Analysis of Parallel Programs}},
  booktitle =	{Automatic Performance Analysis},
  pages =	{1--30},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{5501},
  editor =	{Hans Michael Gerndt and Allen Malony and Barton P. Miller and Wolfgang Nagel},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.05501.4},
  URN =		{urn:nbn:de:0030-drops-5071},
  doi =		{10.4230/DagSemProc.05501.4},
  annote =	{Keywords: Parallel program execution tracing, hardware performance counters, automated structured analysis, performance comparison}
}
Document
DOI: 10.4230/DagSemProc.05501.5
Remote Performance Monitor (RPM)

Authors: Chandra Krintz and Selim Gurun

Published in: Dagstuhl Seminar Proceedings, Volume 5501, Automatic Performance Analysis (2006)

Abstract
Mobile, resource-constrained, battery-powered devices have emerged as key access points to the world's digital infrastructure. To enable our understanding of the performance of these devices, we must be able to efficiently collect accurate profile data from these devices after they are deployed in the field. Moreover, understanding the full-system power and energy behavior of these systems for real programs is vital if users are to accurately characterize, model, and develop effective techniques for extending battery life. Unfortunately, extant approaches to measuring and characterizing power and energy consumption focus on high-end processors, do not consider the complete device, employ inaccurate (program-only) simulation, rely on inaccurate, course-grained battery level data from the device, or employ expensive power measurement tools that are difficult to share across research groups and students. To address these issues, we developed remote performance monitor (RPM). The first component of RPM is an efficient technique for collecting accurate sample-based program profiles. The key to the efficacy of this technique is that we identify when to sample using the repeating patterns in program execution, phases. To enable fine-grained, full-system characterization of embedded computers, we couple and unify phase-aware profiling, hardware performance monitoring, and power and energy measurement within RPM. RPM consists of a tightly coupled set of components which (1) control lab equipment for power measurements and analysis, (2) configure target system characteristics at run-time (such as CPU and memory bus speed), (3) collect target system data using on-board hardware performance monitors (HPMs) and (4) provide a remote access interface. Users of RPM can submit and configure experiments that execute programs on the RPM target device (currently a Stargate sensor platform that is very similar to an HP iPAQ) to collect very accurate power, energy, and CPU performance data with high resolution.
Cite as

Chandra Krintz and Selim Gurun. Remote Performance Monitor (RPM). In Automatic Performance Analysis. Dagstuhl Seminar Proceedings, Volume 5501, pp. 1-5, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{krintz_et_al:DagSemProc.05501.5,
  author =	{Krintz, Chandra and Gurun, Selim},
  title =	{{Remote Performance Monitor (RPM)}},
  booktitle =	{Automatic Performance Analysis},
  pages =	{1--5},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{5501},
  editor =	{Hans Michael Gerndt and Allen Malony and Barton P. Miller and Wolfgang Nagel},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.05501.5},
  URN =		{urn:nbn:de:0030-drops-5046},
  doi =		{10.4230/DagSemProc.05501.5},
  annote =	{Keywords: Profiling, hardware performance monitors, sampling, phase behavior, power, energy}
}
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