Papers by Jean-luc Dekeyser
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific ... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific ... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. appor t de r ech er ch e
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific ... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. appor t de r ech er ch e
Model transformations are the core of the MDE methodology. They can be expressed using various la... more Model transformations are the core of the MDE methodology. They can be expressed using various languages. One of them is QVT, the OMG standard for transformation languages. QVT also provides a traceability mechanism. In general, a trace can be used for many purposes. In this paper, we show the limitations of the trace provided by QVT through different scenarios. Furthermore, based on the QVT language elements, we highlight model transformation concepts that would require consideration. We also propose an alternative trace that takes into account these concepts. It allows us to gather information not provided by the QVT trace and thus fully performs the scenarios. The proposed trace is language independent and can be used without perturbing the QVT transformation execution or the trace generation/exploitation by the engine.
To cite this version
Membrane-based design and management methodology for parallel dynamically reconfigurable embedded... more Membrane-based design and management methodology for parallel dynamically reconfigurable embedded systems
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific ... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific ... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Software Implementation vs. Hardware Implementation:
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific ... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Broadcast with mask on a Massively Parallel Processing on a Chip
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific ... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific ... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific ... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
This paper presents the concept and the implementation of a communication-computation overlap in ... more This paper presents the concept and the implementation of a communication-computation overlap in massively parallel System-on-Chip (mpSoC). This paradigm allows to decrease the execution time of parallel programs using specific strategies in the programming level and partially decoupled control system in the hardware level. The related experiment in VHDL language for system design and in assembly language for case study implementation are described.
WSEAS Transactions on Circuits and Systems archive, 2015
Nowadays, recent intensive signal processing applications are evolving and are characterized by t... more Nowadays, recent intensive signal processing applications are evolving and are characterized by the diversity of algorithms (filtering, correlation, etc.) and their numerous parameters. Having a flexible and pro-grammable system that adapts to changing and various characteristics of these applications reduces the design cost. In this context, we propose in this paper Generic Massively Parallel architecture (G-MPSoC). G-MPSoC is a System-on-Chip based on a grid of clusters of Hardware and Software Computation Elements with different size, performance, and complexity. It is composed of parametric IP-reused modules: processor, controller, accelerator, memory, interconnection network, etc. to build different architecture configurations. The generic structure of G-MPSoC facilitates its adaptation to the intensive signal processing applications requirements. This paper presents G-MPSoC architecture and details its different components. The FPGA-based implementation and the experimental re...
Model transformations are the core of the MDE methodology. They can be expressed using various la... more Model transformations are the core of the MDE methodology. They can be expressed using various languages. One of them is QVT, the OMG standard for transformation languages. QVT also provides a traceability mechanism. In general, a trace can be used for many purposes. In this paper, we show the limitations of the trace provided by QVT through different scenarios. Furthermore, based on the QVT language elements, we highlight model transformation concepts that would require consideration. We also propose an alternative trace that takes into account these concepts. It allows us to gather information not provided by the QVT trace and thus fully performs the scenarios. The proposed trace is language independent and can be used without perturbing the QVT transformation execution or the trace generation/exploitation by the engine.
This report presents the benefits of using the Model Driven Engineering (MDE) methodology to solv... more This report presents the benefits of using the Model Driven Engineering (MDE) methodology to solve major difficulties encountered by usual high level synthesis (HLS) flows. These advantages are highlighted in a design space exploration environment we propose. MDE is the skeleton of our HLS flow dedicated to intensive signal processing to demonstrate the expected benefits of these software technologies extended to hardware design. Both users and designers of the design flow benefit from the MDE methodology, participating to a concrete and effective advancement in the high level synthesis research domain. The flow is automatized from UML specifications to VHDL code generation and has been successfully evaluated for the conception of a video processing application.
Model Driven Engineering for SoC co-design
The 3rd International IEEE-NEWCAS Conference, 2005., 2005
Abstract SoC co-design requires to master a lot of different abstraction levels, different simula... more Abstract SoC co-design requires to master a lot of different abstraction levels, different simulation techniques, different synthesis tools. Due to the evolution of the technologies, the best one is the one to come. Evolution of an embedded system both hardware and software, is not simple. The business logic has to be kept and the technical aspect has to be thrown. To improve the permanence of system on chip we have to abstract from the technical concerns. Model driven engineering (MDE) proposes a separation of concerns: ...
Lecture Notes in Computer Science, 1996
Data-parallel languages support a single instruction ow; the parallelism is expressed at the inst... more Data-parallel languages support a single instruction ow; the parallelism is expressed at the instruction level. Actually, data-parallel languages have chosen arrays to support the parallelism. This regular data structure allows a natural development of regular parallel algorithms. The implementation of irregular algorithms necessitates a programming e ort to project the irregular data structures onto regular structures. In this article we present the di erent techniques used to manage the irregularity in data-parallel languages. Each of them will be illustrated with standard or experimental data-parallel language constructions.
Dynamic Load Balancing on SIMD data-parallel computers
Massively Parallel Processing Applications and Development, 1994
A data-parallel view of the load balancing experimental results on MasPar MP-1
Lecture Notes in Computer Science, 1994
... Evaluation of the MasPar performances. Technical report, Ecole Nor-male Sup6rieure de Lyon, L... more ... Evaluation of the MasPar performances. Technical report, Ecole Nor-male Sup6rieure de Lyon, Lyon, France, February 1992. 8. Dimitris Gerogiannis and Stelios C. Orphanoudakis. Load balancing requirements in parallel implementation of image feature extraction t'asks. ...
Array-OL compilation by code transformation
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Papers by Jean-luc Dekeyser