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    <publisherName>IEEE Computer Society Press</publisherName>
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    <title language="eng">An Object-Oriented Computing Surface for Distributed Memory Architectures</title>
    <parentTitle language="eng">Proceedings of the Twenty-Sixth Hawaii International Conference on System Sciences, Wailea, Hawaii on January 5 - 8, 1993, Vol. 2</parentTitle>
    <enrichment key="UBICOIdent">005683</enrichment>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
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      <lastName>Administrator</lastName>
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      <firstName>Wolfgang</firstName>
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    <publishedYear>1992</publishedYear>
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    <completedDate>2010-08-25</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Modeling Replication and Placement in the PEACE Parallel Operating System - A Case for Dual Objects</title>
    <parentTitle language="eng">Workshop on Dynamic Object Placement and Load Balancing in Parallel and Distributed Systems (ECOOP '92), Utrecht, Netherlands, June 1992</parentTitle>
    <enrichment key="UBICOIdent">005684</enrichment>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
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      <firstName>...</firstName>
      <lastName>Administrator</lastName>
    </submitter>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
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  <doc>
    <id>4857</id>
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    <publishedYear>1998</publishedYear>
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    <language>eng</language>
    <pageFirst>261</pageFirst>
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    <publisherName>ACM Digital Library</publisherName>
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    <title language="eng">Dual Objects - An Object Model for Distributed System Programming</title>
    <parentTitle language="eng">Proceedings of the 8th ACM SIGOPS European workshop on Support for composing distributed applications</parentTitle>
    <enrichment key="UBICOIdent">005671</enrichment>
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      <firstName>Jörg</firstName>
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  <doc>
    <id>4858</id>
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    <publishedYear>1998</publishedYear>
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    <language>eng</language>
    <pageFirst>285</pageFirst>
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    <publisherName>Springer</publisherName>
    <publisherPlace>Berlin [u.a.]</publisherPlace>
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    <completedDate>2010-08-25</completedDate>
    <publishedDate>--</publishedDate>
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    <title language="eng">Experiences Developing a Virtual Shared Memory System using Hig-Level Object Paradigms</title>
    <parentTitle language="eng">Object oriented programming, 12th European conference, proceedings, ECOOP '98, Brussels, Belgium, July 20 - 24, 1998</parentTitle>
    <identifier type="isbn">3-540-64737-6</identifier>
    <enrichment key="UBICOIdent">005672</enrichment>
    <author>
      <firstName>J.</firstName>
      <lastName>Cordsen</lastName>
    </author>
    <submitter>
      <firstName>...</firstName>
      <lastName>Administrator</lastName>
    </submitter>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
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    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
    </author>
    <collection role="old_institute" number="01050">LS Verteilte Systeme / Betriebssysteme</collection>
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  </doc>
  <doc>
    <id>4848</id>
    <completedYear/>
    <publishedYear>1999</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
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    <completedDate>2010-08-24</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">ARTS of PEACE - A High-Performance Middleware Layer for Parallel and Disributed Computing</title>
    <enrichment key="UBICOIdent">005652</enrichment>
    <enrichment key="UBICOquelle">Journal of Parallel and Distributed Computing 59(1999)2, S. 155-179, 0743-7315</enrichment>
    <author>
      <firstName>L.</firstName>
      <lastName>Büttner</lastName>
    </author>
    <submitter>
      <firstName>...</firstName>
      <lastName>Administrator</lastName>
    </submitter>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
    </author>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
    </author>
    <collection role="old_institute" number="01050">LS Verteilte Systeme / Betriebssysteme</collection>
    <collection role="institutes" number="1210">FG Verteilte Systeme und Betriebssysteme</collection>
  </doc>
  <doc>
    <id>4874</id>
    <completedYear/>
    <publishedYear>1991</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
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    <title language="eng">The PEACE Family of Distributed Operating Systems</title>
    <enrichment key="UBICOIdent">005688</enrichment>
    <enrichment key="UBICOquelle">Technical Report, GMD FIRST, Berlin, 1991</enrichment>
    <author>
      <firstName>R.</firstName>
      <lastName>Berg</lastName>
    </author>
    <submitter>
      <firstName>...</firstName>
      <lastName>Administrator</lastName>
    </submitter>
    <author>
      <firstName>J.</firstName>
      <lastName>Cordsen</lastName>
    </author>
    <author>
      <firstName>J.</firstName>
      <lastName>Heuer</lastName>
    </author>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
    </author>
    <author>
      <firstName>B.</firstName>
      <lastName>Oestmann</lastName>
    </author>
    <author>
      <firstName>M.</firstName>
      <lastName>Sander</lastName>
    </author>
    <author>
      <firstName>Heiko</firstName>
      <lastName>Schmidt</lastName>
    </author>
    <author>
      <firstName>F.</firstName>
      <lastName>Schön</lastName>
    </author>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
    </author>
    <collection role="old_institute" number="01050">LS Verteilte Systeme / Betriebssysteme</collection>
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  </doc>
  <doc>
    <id>4875</id>
    <completedYear/>
    <publishedYear>1991</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
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    <publisherName/>
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    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2010-08-25</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Making Massively Parallel Systems Work</title>
    <enrichment key="UBICOIdent">005689</enrichment>
    <enrichment key="UBICOquelle">Technical Report, Esprit Project No. 2447, GMD FIRST, Berlin, FRG, 1990</enrichment>
    <author>
      <firstName>R.</firstName>
      <lastName>Berg</lastName>
    </author>
    <submitter>
      <firstName>...</firstName>
      <lastName>Administrator</lastName>
    </submitter>
    <author>
      <firstName>J.</firstName>
      <lastName>Cordsen</lastName>
    </author>
    <author>
      <firstName>Ch.</firstName>
      <lastName>Hastedt</lastName>
    </author>
    <author>
      <firstName>J.</firstName>
      <lastName>Heuer</lastName>
    </author>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
    </author>
    <author>
      <firstName>M.</firstName>
      <lastName>Sander</lastName>
    </author>
    <author>
      <firstName>Heiko</firstName>
      <lastName>Schmidt</lastName>
    </author>
    <author>
      <firstName>F.</firstName>
      <lastName>Schön</lastName>
    </author>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
    </author>
    <collection role="old_institute" number="01050">LS Verteilte Systeme / Betriebssysteme</collection>
    <collection role="institutes" number="1210">FG Verteilte Systeme und Betriebssysteme</collection>
  </doc>
  <doc>
    <id>4876</id>
    <completedYear/>
    <publishedYear>1990</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
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    <publisherName/>
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    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2010-08-25</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Making Massively Parallel Systems Fast</title>
    <enrichment key="UBICOIdent">005690</enrichment>
    <enrichment key="UBICOquelle">Technical Report, Esprit Project No. 2447, GMD FIRST, Berlin, 1990</enrichment>
    <author>
      <firstName>J.</firstName>
      <lastName>Heuer</lastName>
    </author>
    <submitter>
      <firstName>...</firstName>
      <lastName>Administrator</lastName>
    </submitter>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
    </author>
    <author>
      <firstName>M.</firstName>
      <lastName>Sander</lastName>
    </author>
    <author>
      <firstName>F.</firstName>
      <lastName>Schön</lastName>
    </author>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
    </author>
    <collection role="old_institute" number="01050">LS Verteilte Systeme / Betriebssysteme</collection>
    <collection role="institutes" number="1210">FG Verteilte Systeme und Betriebssysteme</collection>
  </doc>
  <doc>
    <id>15432</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
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    <language>eng</language>
    <pageFirst>351</pageFirst>
    <pageLast>362</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject_ref</type>
    <publisherName>Springer International Publishing</publisherName>
    <publisherPlace>Cham</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2016-12-04</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Shared Memory in the Many-Core Age</title>
    <abstract language="eng">With the evolution toward fast networks of many-core processors, the design assumptions at the basis of software-level distributed shared memory (DSM) systems change considerably. But efficient DSMs are needed because they can significantly simplify the implementation of complex distributed algorithms. This paper discusses implications of the many-core evolution and derives a set of reusable elementary operations for future software DSMs. These elementary operations will help in exploring and evaluating new memory models and consistency protocols.</abstract>
    <parentTitle language="eng">Euro-Par 2014: Parallel Processing Workshops, Porto, 2014</parentTitle>
    <identifier type="isbn">978-3-319-14312-5</identifier>
    <identifier type="doi">10.1007/978-3-319-14313-2_30</identifier>
    <identifier type="url">http://link.springer.com/chapter/10.1007%2F978-3-319-14313-2_30</identifier>
    <enrichment key="UBICOseries">Lecture Notes in Computer Science ; 8806</enrichment>
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    <author>
      <firstName>Stefan</firstName>
      <lastName>Nürnberger</lastName>
    </author>
    <submitter>
      <firstName>Randolf</firstName>
      <lastName>Rotta</lastName>
    </submitter>
    <author>
      <firstName>Gabor</firstName>
      <lastName>Drescher</lastName>
    </author>
    <author>
      <firstName>Randolf</firstName>
      <lastName>Rotta</lastName>
    </author>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
    </author>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
    </author>
    <collection role="institutes" number="1210">FG Verteilte Systeme und Betriebssysteme</collection>
  </doc>
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    <id>27245</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>7227</pageFirst>
    <pageLast>7236</pageLast>
    <pageNumber/>
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    <issue/>
    <volume/>
    <type>conferenceobject_ref</type>
    <publisherName>Scholarspace</publisherName>
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    <creatingCorporation/>
    <contributingCorporation>University of Hawaii at Manoa</contributingCorporation>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2021-03-26</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Neverlast: Towards the Design und Implementation of the NVM-based Everlasting Operating System</title>
    <parentTitle language="eng">Hawaii International Conference on System Sciences 2021 - HICSS-54</parentTitle>
    <identifier type="url">https://scholarspace.manoa.hawaii.edu/handle/10125/71491</identifier>
    <identifier type="doi">10.24251/HICSS.2021.870</identifier>
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    <enrichment key="Fprofil">4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology</enrichment>
    <author>
      <firstName>Christian</firstName>
      <lastName>Eichler</lastName>
    </author>
    <submitter>
      <firstName>Karla</firstName>
      <lastName>Kersten</lastName>
    </submitter>
    <author>
      <firstName>Henriette</firstName>
      <lastName>Hofmeier</lastName>
    </author>
    <author>
      <firstName>Stefan</firstName>
      <lastName>Reif</lastName>
    </author>
    <author>
      <firstName>Timo</firstName>
      <lastName>Hönig</lastName>
    </author>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
    </author>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
    </author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>operating systems</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>non-volatile memory</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>software development for mobile devices, the internet-of-things, and cyber physical systems energy</value>
    </subject>
    <collection role="institutes" number="1210">FG Verteilte Systeme und Betriebssysteme</collection>
  </doc>
  <doc>
    <id>27246</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>31</pageFirst>
    <pageLast>40</pageLast>
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    <edition/>
    <issue/>
    <volume>1</volume>
    <type>conferenceobject_ref</type>
    <publisherName>IEEE Xplore</publisherName>
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    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2021-03-26</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Pinpoint the Joules: Unifying Runtime-Support for Energy Measurements on Heterogeneous Systems</title>
    <abstract language="eng">For the design and operation of today's computer systems, power and energy requirements are highest priorities. Unlike performance analyses, however, power and energy measurements of heterogeneous systems are difficult to conduct. Especially at the system-software level, performing power and energy measurements remains challenging. Yet, such measurements are essential to improve software components for low power and high energy-efficiency.In this paper, we analyze and discuss the power and energy characteristics of several heterogeneous systems with up to 20 cores (160 hardware threads) and 1 TB of main memory. For the analyzed systems, we outline challenges regarding power and energy measurements and show ways to overcome limitations (i.e., sampling constraints). To improve the current state of the art in power and energy measurements at the system-software level, we present the design and implementation of PINPOINT, an energy-profiling tool which unifies different power and energy measurement interfaces.</abstract>
    <parentTitle language="eng">2020 IEEE/ACM International Workshop on Runtime and Operating Systems for Supercomputers (ROSS)</parentTitle>
    <identifier type="url">https://www.computer.org/csdl/proceedings-article/ross/2020/104600a031/1pXlZMpoXTO</identifier>
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    <enrichment key="Fprofil">4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology</enrichment>
    <author>
      <firstName>Sven</firstName>
      <lastName>Köhler</lastName>
    </author>
    <submitter>
      <firstName>Karla</firstName>
      <lastName>Kersten</lastName>
    </submitter>
    <author>
      <firstName>Benedict</firstName>
      <lastName>Herzog</lastName>
    </author>
    <author>
      <firstName>Timo</firstName>
      <lastName>Hönig</lastName>
    </author>
    <author>
      <firstName>Lukas</firstName>
      <lastName>Wenzel</lastName>
    </author>
    <author>
      <firstName>Max</firstName>
      <lastName>Plauth</lastName>
    </author>
    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
    </author>
    <author>
      <firstName>Andreas</firstName>
      <lastName>Polze</lastName>
    </author>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
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    <collection role="institutes" number="1210">FG Verteilte Systeme und Betriebssysteme</collection>
  </doc>
  <doc>
    <id>28330</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>360</pageFirst>
    <pageLast>371</pageLast>
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    <type>conferenceobject_ref</type>
    <publisherName>IEEE</publisherName>
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    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2022-01-05</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Nowa: A Wait-Free Continuation-Stealing Concurrency Platform</title>
    <parentTitle language="eng">2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS)</parentTitle>
    <identifier type="isbn">978-1-6654-4066-0</identifier>
    <identifier type="doi">10.1109/IPDPS49936.2021.00044</identifier>
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    <enrichment key="Fprofil">4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology</enrichment>
    <author>
      <firstName>Florian</firstName>
      <lastName>Schmaus</lastName>
    </author>
    <submitter>
      <firstName>Karla</firstName>
      <lastName>Kersten</lastName>
    </submitter>
    <author>
      <firstName>Nicolas</firstName>
      <lastName>Pfeiffer</lastName>
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    <author>
      <firstName>Timo</firstName>
      <lastName>Hönig</lastName>
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    <author>
      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
    </author>
    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
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    <id>35177</id>
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    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>153</pageFirst>
    <pageLast>167</pageLast>
    <pageNumber>15</pageNumber>
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    <issue/>
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    <completedDate>2025-01-14</completedDate>
    <publishedDate>--</publishedDate>
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    <title language="eng">Back to the core-memory age: running operating systems in NVRAM only</title>
    <abstract language="eng">The classic core memory was completely non-volatile and thus kept at least part of the operating system persistently in main memory, even over power cycles. Nowadays we can repeat this approach with NVRAM, but with terabytes of main memory on a completely different scale and with parts of the operating-system state stored in volatile CPU caches. &#13;
In this paper, we discuss our experiences of running large modern operating systems including their applications entirely in NVRAM. We adapted stock Linux and FreeBSD kernels to work exclusively with NVRAM by hiding all DRAM from the kernels at boot time to establish a realistic performance baseline without changing anything else. Following this entirely NVRAM-agnostic approach, we could observe an effective performance penalty of a factor of about four, but only negligible increases in whole-system power draw. For our system with two CPU sockets and 56 cores total, we also observed a reduction in power draw in several scenarios. Due to prolonged execution times, the energy consumption increased as well for these measured workloads. While this might be discouraging at first sight, this result was achieved without any performance tuning as to the specific characteristics of today’s NVRAM technology. &#13;
Therefore, we are also discussing means to mitigate the observed shortcomings by integrating NVRAM appropriately into the memory hierarchy of future robust persistent systems.</abstract>
    <parentTitle language="eng">Proceedings: architecture of computing systems: 36th International Conference, ARCS 2023,  June 13 - 15, 2023</parentTitle>
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    <author>
      <firstName>Jonas</firstName>
      <lastName>Rabenstein</lastName>
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    <editor>
      <firstName>Georgios</firstName>
      <lastName>Goumas</lastName>
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    <submitter>
      <firstName>Karla</firstName>
      <lastName>Kersten</lastName>
    </submitter>
    <author>
      <firstName>Dustin</firstName>
      <lastName>Nguyen</lastName>
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    <editor>
      <firstName>Sven</firstName>
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    <author>
      <firstName>Oliver</firstName>
      <lastName>Giersch</lastName>
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    <editor>
      <firstName>Jürgen</firstName>
      <lastName>Brehm</lastName>
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    <author>
      <firstName>Christian</firstName>
      <lastName>Eichler</lastName>
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    <editor>
      <firstName>Stefan</firstName>
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    <author>
      <firstName>Timo</firstName>
      <lastName>Hönig</lastName>
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      <firstName>Thilo</firstName>
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      <firstName>Jörg</firstName>
      <lastName>Nolte</lastName>
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    <author>
      <firstName>Wolfgang</firstName>
      <lastName>Schröder-Preikschat</lastName>
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    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>NVRAM</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Operating Systems</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Energy</value>
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    <pageFirst>1</pageFirst>
    <pageLast>7</pageLast>
    <pageNumber>7</pageNumber>
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    <publisherName>ACM</publisherName>
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    <title language="eng">Virtual memory revisited for tiered memory</title>
    <abstract language="eng">The landscape of memory technologies has grown substantially more diverse and heterogeneous, with a number of special-purpose memory technologies reaching market maturity in recent years, such as NVRAM (Non-Volatile Memory), HBM (High-Bandwidth Memory) or the upcoming CXL.mem. Future computing systems will have to contend with byte-addressable and cache-coherent main memory that is highly diverse, either in terms of the fundamental performance characteristics of its underlying memory technology, or due to the fact that CXL.mem will allow accessing homogenous but remote memory. The VM (Virtual Memory) subsystems of today have been empirically optimized over decades, but were designed for a single tier of main memory only. While recent approaches that integrated tiered memory have focused on better memory access metrics to improve page placement strategies, we seek to leverage the proven heuristics that are already in place. In times of high load we assign pages from slower memory, demote inactive pages according to standard page replacement strategies and use lazy page promotions when sufficient resources are available again to retain the inherently high reactivity of demand paging with regard to working set changes. We integrate these mechanisms into the VM subsystem of a full-featured mainstream operating system (FreeBSD) with minimal adaptations. The resulting multi-tier VM system runs in a stable and efficient manner under high stress even with highly unfavorable work loads.</abstract>
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