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  <doc>
    <id>5145</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>incollection</type>
    <publisherName>Morgan Kaufman, Elsevier</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Concurrent Kernel Offloading</title>
    <parentTitle language="eng">High Performance Parallelism Pearls</parentTitle>
    <identifier type="isbn">978-0128021187</identifier>
    <identifier type="url">http://store.elsevier.com/High-Performance-Parallelism-Pearls/James-Reinders/isbn-9780128021187/</identifier>
    <note>Target publication date: Nov, 2014</note>
    <enrichment key="PeerReviewed">yes</enrichment>
    <enrichment key="SubmissionStatus">in press</enrichment>
    <author>Florian Wende</author>
    <editor>James Reinders</editor>
    <submitter>Regine Kossick</submitter>
    <author>Thomas Steinke</author>
    <editor>Jim Jeffers</editor>
    <author>Michael Klemm</author>
    <author>Alexander Reinefeld</author>
    <collection role="institutes" number="vas">Distributed Algorithms and Supercomputing</collection>
    <collection role="persons" number="reinefeld">Reinefeld, Alexander</collection>
    <collection role="persons" number="steinke">Steinke, Thomas</collection>
    <collection role="projects" number="2013-Many-Core-HPC">2013-Many-Core-HPC</collection>
  </doc>
  <doc>
    <id>5356</id>
    <completedYear/>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>reportzib</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>2015-03-02</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">The Impact of Process Placement and Oversubscription on Application Performance: A Case Study for Exascale Computing</title>
    <abstract language="eng">With the growing number of hardware components and the increasing software complexity in the upcoming exascale computers, system failures will become the norm rather than an exception for long-running applications. Fault-tolerance can be achieved by the creation of checkpoints during the execution of a parallel program. Checkpoint/Restart (C/R) mechanisms allow for both task migration (even if there were no hardware faults) and restarting of tasks after the occurrence of hardware faults. Affected tasks are then migrated to other nodes which may result in unfortunate process placement and/or oversubscription of compute resources. In this paper we analyze the impact of  unfortunate process placement and oversubscription of compute resources on the performance and scalability of two typical HPC application workloads, CP2K and MOM5. Results are given for a Cray XC30/40 with Aries dragonfly topology. Our results indicate that unfortunate process placement has only little negative impact while oversubscription substantially degrades the performance. The latter might be only (partially) beneficial when placing multiple applications with different computational characteristics on the same node.</abstract>
    <identifier type="issn">1438-0064</identifier>
    <identifier type="urn">urn:nbn:de:0297-zib-53560</identifier>
    <enrichment key="SourceTitle">Appeared in: Proceedings of the 3rd International Conference on Exascale Applications and Software, EASC 2015, pp. 13 - 18</enrichment>
    <author>Florian Wende</author>
    <submitter>Florian Wende</submitter>
    <author>Thomas Steinke</author>
    <author>Alexander Reinefeld</author>
    <series>
      <title>ZIB-Report</title>
      <number>15-05</number>
    </series>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fault-tolerance</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Process placement</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Oversubscription</value>
    </subject>
    <collection role="ccs" number="A.">General Literature</collection>
    <collection role="pacs" number="00.00.00">GENERAL</collection>
    <collection role="msc" number="00-XX">GENERAL</collection>
    <collection role="institutes" number="vas">Distributed Algorithms and Supercomputing</collection>
    <collection role="persons" number="reinefeld">Reinefeld, Alexander</collection>
    <collection role="persons" number="steinke">Steinke, Thomas</collection>
    <collection role="projects" number="2013-FFMK">2013-FFMK</collection>
    <file>https://opus4.kobv.de/opus4-zib/files/5356/xc30_techreport.pdf</file>
  </doc>
  <doc>
    <id>5686</id>
    <completedYear/>
    <publishedYear>2015</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>13</pageFirst>
    <pageLast>18</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>The  University of Edinburgh</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">The Impact of Process Placement and Oversubscription on Application Performance: A Case Study for Exascale Computing</title>
    <parentTitle language="eng">Proceedings of the 3rd International Conference on Exascale Applications and Software, EASC 2015</parentTitle>
    <identifier type="isbn">978 -0-9 926615 -1-9</identifier>
    <enrichment key="PeerReviewed">yes</enrichment>
    <enrichment key="PreprintUrn">urn:nbn:de:0297-zib-53560</enrichment>
    <enrichment key="FulltextUrl">http://www.easc2015.ed.ac.uk/sites/default/files/attachments/EASC15Proceedings.pdf</enrichment>
    <author>Florian Wende</author>
    <submitter>Florian Schintke</submitter>
    <editor>A. Gray</editor>
    <author>Thomas Steinke</author>
    <editor>L. Smith</editor>
    <author>Alexander Reinefeld</author>
    <editor>M. Weiland</editor>
    <collection role="institutes" number="vas">Distributed Algorithms and Supercomputing</collection>
    <collection role="persons" number="reinefeld">Reinefeld, Alexander</collection>
    <collection role="persons" number="steinke">Steinke, Thomas</collection>
    <collection role="projects" number="2013-FFMK">2013-FFMK</collection>
  </doc>
</export-example>
