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Documents authored by Waldschmidt, Klaus


Document
A Virtual Layer for FPGA Based Parallel Systems (MP-SoCs)

Authors: Andreas Hofmann and Klaus Waldschmidt

Published in: Dagstuhl Seminar Proceedings, Volume 8141, Organic Computing - Controlled Self-organization (2008)


Abstract
Besides performance and time to market, robustness and reliability are important design targets for modern Systemson- Chip (SoCs). Despite these features the power consumption must be as low as possible. To meet these design goals parallel, flexible, and adaptive architectures are required [1]. Today, dynamically reconfigurable FPGAs are well suited to form a parallel architecture because they incorporate serveral hard- and softcores. To efficiently use such multicore systems a hardware independent system must be created which handles all cores. Further, optimizing the power management the number of active cores must be adapted dynamically to the current workload. To make these features manageable and augment the system with adaptivity a virtual layer is required which hides the – due to runtime reconfiguration – changing hardware system from the application software. The Scalable Dataflow-driven Virtual Machine [2] is such a virtualization of a parallel, adaptive and heterogeneous cluster of processing elements (PE). Thus, it is well suited to serve as a managing firmware for multicore FPGAs.

Cite as

Andreas Hofmann and Klaus Waldschmidt. A Virtual Layer for FPGA Based Parallel Systems (MP-SoCs). In Organic Computing - Controlled Self-organization. Dagstuhl Seminar Proceedings, Volume 8141, pp. 1-2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2008)


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@InProceedings{hofmann_et_al:DagSemProc.08141.4,
  author =	{Hofmann, Andreas and Waldschmidt, Klaus},
  title =	{{A Virtual Layer for FPGA Based Parallel Systems (MP-SoCs)}},
  booktitle =	{Organic Computing - Controlled Self-organization},
  pages =	{1--2},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2008},
  volume =	{8141},
  editor =	{Kirstie Bellman and Michael G. Hinchey and Christian M\"{u}ller-Schloer and Hartmut Schmeck and Rolf W\"{u}rtz},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.08141.4},
  URN =		{urn:nbn:de:0030-drops-15610},
  doi =		{10.4230/DagSemProc.08141.4},
  annote =	{Keywords: }
}
Document
Reliability-Aware Power Management Of Multi-Core Systems (MPSoCs)

Authors: Klaus Waldschmidt, Jan Haase, Andreas Hofmann, Markus Damm, and Dennis Hauser

Published in: Dagstuhl Seminar Proceedings, Volume 6141, Dynamically Reconfigurable Architectures (2006)


Abstract
Long-term reliability of processors in embedded systems is experiencing growing attention since decreasing feature sizes and increasing power consumption have a negative influence on the lifespan. Among other measures, the reliability can be influenced significantly by Dynamic Power Management (DPM), since it affects the processor's temperature. Compared to single-core systems reconfigurable multi-core SoCs offer much more possibilities to optimize power and reliability. The impact of different DPM-strategies on the lifespan of multi-core processors is the focus of this presentation. It is shown that the long-term reliability of a multi-core system can be influenced deliberately with different DPM strategies and that temperature cycling greatly influences the estimated lifespan. In this presentation, a new reliability-aware dynamic power management (RADPM) policy is explained.

Cite as

Klaus Waldschmidt, Jan Haase, Andreas Hofmann, Markus Damm, and Dennis Hauser. Reliability-Aware Power Management Of Multi-Core Systems (MPSoCs). In Dynamically Reconfigurable Architectures. Dagstuhl Seminar Proceedings, Volume 6141, pp. 1-7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)


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@InProceedings{waldschmidt_et_al:DagSemProc.06141.17,
  author =	{Waldschmidt, Klaus and Haase, Jan and Hofmann, Andreas and Damm, Markus and Hauser, Dennis},
  title =	{{Reliability-Aware Power Management Of Multi-Core Systems (MPSoCs)}},
  booktitle =	{Dynamically Reconfigurable Architectures},
  pages =	{1--7},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{6141},
  editor =	{Peter M. Athanas and J\"{u}rgen Becker and Gordon Brebner and J\"{u}rgen Teich},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.06141.17},
  URN =		{urn:nbn:de:0030-drops-7458},
  doi =		{10.4230/DagSemProc.06141.17},
  annote =	{Keywords: Organic computing, Adaptivity, Power Management, Power Consumption, Reliability, SDVM}
}
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