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Documents authored by Smit, Gerard J. M.

Found 2 Possible Name Variants:

Smit, Gerard J.M.

Document
DOI: 10.4230/DagSemProc.06141.7
Efficient architectures for streaming applications

Authors: Gerard J.M. Smit, Andre B. J. Kokkeler, Pascal T. Wolkotte, Marcel D. van de Burgwal, and Paul M. Heysters

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

Abstract
This presentation will focus on algorithms and reconfigurable tiled architectures for streaming DSP applications. The tile concept will not only be applied on chip level but also on board-level and system-level. The tile concept has a number of advantages: (1) depending on the requirements more or less tiles can be switched on/off, (2) the tile structure fits well to future IC process technologies, more tiles will be available in advanced process technologies, but the complexity per tile stays the same, (3) the tile concept is fault tolerant, faulty tiles can be discarded and (4) tiles can be configured in parallel. Because processing and memory is combined in the tiles, tasks can be executed efficiently on tiles (locality of reference). There are a number of application domains that can be considered as streaming DSP applications: for example wireless baseband processing (for HiperLAN/2, WiMax, DAB, DRM, DVB), multimedia processing (e.g. MPEG, MP3 coding/decoding), medical image processing, color image processing, sensor processing (e.g. remote surveillance cameras) and phased array radar systems. In this presentation the key characteristics of streaming DSP applications are highlighted, and the characteristics of the processing architectures to efficiently support these types of applications are addressed.
Cite as

Gerard J.M. Smit, Andre B. J. Kokkeler, Pascal T. Wolkotte, Marcel D. van de Burgwal, and Paul M. Heysters. Efficient architectures for streaming applications. In Dynamically Reconfigurable Architectures. Dagstuhl Seminar Proceedings, Volume 6141, pp. 1-7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{smit_et_al:DagSemProc.06141.7,
  author =	{Smit, Gerard J.M. and Kokkeler, Andre B. J. and Wolkotte, Pascal T. and van de Burgwal, Marcel D. and Heysters, Paul M.},
  title =	{{Efficient architectures for streaming applications}},
  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.06141.7},
  URN =		{urn:nbn:de:0030-drops-7431},
  doi =		{10.4230/DagSemProc.06141.7},
  annote =	{Keywords: Reconfigurable streaming efficient}
}

Smit, Gerard J. M.

Document
DOI: 10.4230/DagSemProc.10281.3
A mathematical approach towards hardware design

Authors: Gerard J. M. Smit, Jan Kuper, and Christiaan P. R. Baaij

Published in: Dagstuhl Seminar Proceedings, Volume 10281, Dynamically Reconfigurable Architectures (2010)

Abstract
Today the hardware for embedded systems is often specified in VHDL. However, VHDL describes the system at a rather low level, which is cumbersome and may lead to design faults in large real life applications. There is a need of higher level abstraction mechanisms. In the embedded systems group of the University of Twente we are working on systematic and transformational methods to design hardware architectures, both multi core and single core. The main line in this approach is to start with a straightforward (often mathematical) specification of the problem. The next step is to find some adequate transformations on this specification, in particular to find specific optimizations, to be able to distribute the application over different cores. The result of these transformations is then translated into the functional programming language Haskell since Haskell is close to mathematics and such a translation often is straightforward. Besides, the Haskell code is executable, so one immediately has a simulation of the intended system. Next, the resulting Haskell specification is given to a compiler, called CëaSH (for CAES LAnguage for Synchronous Hardware) which translates the specification into VHDL. The resulting VHDL is synthesizable, so from there on standard VHDL-tooling can be used for synthesis. In this work we primarily focus on streaming applications: i.e. applications that can be modeled as data-flow graphs. At the moment the CëaSH system is ready in prototype form and in the presentation we will give several examples of how it can be used. In these examples it will be shown that the specification code is clear and concise. Furthermore, it is possible to use powerful abstraction mechanisms, such as polymorphism, higher order functions, pattern matching, lambda abstraction, partial application. These features allow a designer to describe circuits in a more natural and concise way than possible with the language elements found in the traditional hardware description languages. In addition we will give some examples of transformations that are possible in a mathematical specification, and which do not suffer from the problems encountered in, e.g., automatic parallelization of nested for-loops in C-programs.
Cite as

Gerard J. M. Smit, Jan Kuper, and Christiaan P. R. Baaij. A mathematical approach towards hardware design. In Dynamically Reconfigurable Architectures. Dagstuhl Seminar Proceedings, Volume 10281, pp. 1-11, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{smit_et_al:DagSemProc.10281.3,
  author =	{Smit, Gerard J. M. and Kuper, Jan and Baaij, Christiaan P. R.},
  title =	{{A mathematical approach towards hardware design}},
  booktitle =	{Dynamically Reconfigurable Architectures},
  pages =	{1--11},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{10281},
  editor =	{Peter M. Athanas and J\"{u}rgen Becker and J\"{u}rgen Teich and Ingrid Verbauwhede},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.10281.3},
  URN =		{urn:nbn:de:0030-drops-28407},
  doi =		{10.4230/DagSemProc.10281.3},
  annote =	{Keywords: Hardware design, mathematical specification, streaming applications}
}
Document
DOI: 10.4230/DagSemProc.07101.3
07101 Working Group Report – Performance Measures Other Than Time

Authors: Lucia Cloth, Pepijn Crouzen, Matthias Fruth, Tingting Han, David N. Jansen, Mark Kattenbelt, Gerard J. M. Smit, and Lijun Zhang

Published in: Dagstuhl Seminar Proceedings, Volume 7101, Quantitative Aspects of Embedded Systems (2007)

Abstract
This presentation shows a few possible performance measures that might be interesting and possible evaluation methods.
Cite as

Lucia Cloth, Pepijn Crouzen, Matthias Fruth, Tingting Han, David N. Jansen, Mark Kattenbelt, Gerard J. M. Smit, and Lijun Zhang. 07101 Working Group Report – Performance Measures Other Than Time. In Quantitative Aspects of Embedded Systems. Dagstuhl Seminar Proceedings, Volume 7101, pp. 1-2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)

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@InProceedings{cloth_et_al:DagSemProc.07101.3,
  author =	{Cloth, Lucia and Crouzen, Pepijn and Fruth, Matthias and Han, Tingting and Jansen, David N. and Kattenbelt, Mark and Smit, Gerard J. M. and Zhang, Lijun},
  title =	{{07101 Working Group Report – Performance Measures Other Than Time}},
  booktitle =	{Quantitative Aspects of Embedded Systems},
  pages =	{1--2},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{7101},
  editor =	{Boudewijn Haverkort and Joost-Pieter Katoen and Lothar Thiele},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.07101.3},
  URN =		{urn:nbn:de:0030-drops-11396},
  doi =		{10.4230/DagSemProc.07101.3},
  annote =	{Keywords: }
}
Document
DOI: 10.4230/DagSemProc.07101.4
Demonstration of Run-time Spatial Mapping of Streaming Applications to a Heterogeneous Multi-Processor System-on-Chip (MPSOC)

Authors: Philip K. F. Hölzenspies, Jan Kuper, Gerard J. M. Smit, and Johann Hurink

Published in: Dagstuhl Seminar Proceedings, Volume 7101, Quantitative Aspects of Embedded Systems (2007)

Abstract
In this paper, the problem of spatial mapping is defined. Reasons are presented to show why performing spatial mappings at run-time is both necessary and desirable and criteria for the qualitative comparison of spatial mappings are introduced. An algorithm is described that implements a preliminary spatial mapper. The methods used in the algorithm are demonstrated with an illustrative example.
Cite as

Philip K. F. Hölzenspies, Jan Kuper, Gerard J. M. Smit, and Johann Hurink. Demonstration of Run-time Spatial Mapping of Streaming Applications to a Heterogeneous Multi-Processor System-on-Chip (MPSOC). In Quantitative Aspects of Embedded Systems. Dagstuhl Seminar Proceedings, Volume 7101, pp. 1-13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)

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@InProceedings{holzenspies_et_al:DagSemProc.07101.4,
  author =	{H\"{o}lzenspies, Philip K. F. and Kuper, Jan and Smit, Gerard J. M. and Hurink, Johann},
  title =	{{Demonstration of Run-time Spatial Mapping of Streaming Applications to a Heterogeneous Multi-Processor System-on-Chip (MPSOC)}},
  booktitle =	{Quantitative Aspects of Embedded Systems},
  pages =	{1--13},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{7101},
  editor =	{Boudewijn Haverkort and Joost-Pieter Katoen and Lothar Thiele},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.07101.4},
  URN =		{urn:nbn:de:0030-drops-11382},
  doi =		{10.4230/DagSemProc.07101.4},
  annote =	{Keywords: Run-time spatial mapping, streaming applications, MPSoC}
}
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