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26.
  • Bjureus, P., et al. (författare)
  • Modeling of mixed control and dataflow systems in MASCOT
  • 2001
  • Ingår i: IEEE Transactions on Very Large Scale Integration (vlsi) Systems. - : Institute of Electrical and Electronics Engineers (IEEE). - 1063-8210 .- 1557-9999. ; 9:5, s. 690-703
  • Tidskriftsartikel (refereegranskat)abstract
    • The Matlab and SDL Codesign Technique (MASCOT) method integrates modeling of data flow and control dominated parts at the system level. Based on the established languages specification and description language (SDL) and Matlab, MASCOT provides a modeling and simulation technique which realizes the communication and synchronization between the two domains. Moreover, it offers modeling guidelines for a disciplined and efficient way of using the technique. Most of the tedious details of modeling synchronization and communication is handled automatically and is transparent to the user. Consequently, the user can focus on the application and on the important tradeoffs to be made at the system level.
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28.
  • Candaele, Bernard, et al. (författare)
  • Mapping Optimisation for Scalable multi-core ARchiTecture : The MOSART approach
  • 2010
  • Ingår i: Proceedings - IEEE Annual Symposium on VLSI, ISVLSI 2010. - 9780769540764 ; , s. 518-523
  • Konferensbidrag (refereegranskat)abstract
    • The project will address two main challenges of prevailing architectures: 1) The global Interconnect and memory bottleneck due to a single, globally shared memory with high access times and power consumption; 2) The difficulties in programming heterogeneous, multi-core platforms, in particular in dynamically managing data structures in distributed memory. MOSART aims to overcome these through a multi-core architecture with distributed memory organisation, a Network-on-Chip (NoC) communication backbone and configurable processing cores that are scaled, optimised and customised together to achieve diverse energy, performance, cost and size requirements of different classes of applications. MOSART achieves this by: A) Providing platform support for management of abstract data structures Including middleware services and a run-time data manager for NoC based communication infrastructure; 2) Developing tool support for parallelizing and mapping applications on the multi-core target platform and customizing the processing cores for the application.
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29.
  • Candaele, Bernard, et al. (författare)
  • The MOSART Mapping Optimization for multi-core Architectures
  • 2011
  • Ingår i: VLSI 2010 Annual Symposium. - Dordrecht : Springer Publishing Company. ; , s. 181-195
  • Konferensbidrag (refereegranskat)abstract
    • MOSART project addresses two main challenges of prevailing architectures: (i) Theglobal interconnect and memory bottleneck due to a single, globally shared memorywith high access times and power consumption; (ii) The difficulties in programmingheterogeneous, multi-core platforms MOSART aims to overcome these through amulti-core architecture with distributed memory organization, a Network-on-Chip(NoC) communication backbone and configurable processing cores that are scaled,optimized and customized together to achieve diverse energy, performance, cost andsize requirements of different classes of applications. MOSART achieves this by:(i) Providing platform support for management of abstract data structures includingmiddleware services and a run-time data manager for NoC based communicationinfrastructure; (ii) Developing tool support for parallelizing and mapping applicationson the multi-core target platform and customizing the processing cores for theapplication.
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30.
  • Chen, Xiaowen, et al. (författare)
  • Area and Performance Optimization of Barrier Synchronization on Multi-core Network-on-Chips
  • 2010
  • Ingår i: 3rd IEEE International Conference on Computer and Electrical Engineering (ICCEE).
  • Konferensbidrag (refereegranskat)abstract
    • Barrier synchronization is commonly and widelyused to synchronize the execution of parallel processor coreson multi-core Network-on-Chips (NoCs). Since its globalnature may cause heavy serialization resulting in largeperformance penalty, barrier synchronization should becarefully designed to have low latency communication and tominimize overall completion time. Therefore, in the paper, wepropose a fast barrier synchronization mechanism, targetingMulti-core NoCs. The fast barrier synchronization mechanismincludes a dedicated hardware module, named Fast BarrierSynchronizer (FBS), integrated with each processor node. Itoffers a set of barrier counters and can concurrently processsynchronization requests issued by the local node and remotenodes via the on-chip network. The salient feature of our fastbarrier synchronization mechanism is that, once the barriercondition is reached, the “barrier release” acknowledgement isrouted to all processor nodes in a broadcast way in order tosave chip area by avoiding storing source node informationand to minimize completion time by avoiding serialization ofbarrier releasing. Synthesis results suggest that the FBS canrun over 1 GHz in SMIC® 130nm technology with small areaoverhead. We implemented a FBS-enhanced multi-core NoCarchitecture on our FPGA platform using the Xilinx® Virtex 5as the FPGA chip. FPGA utilization and simulation resultsshow that our fast barrier synchronization demonstrates botharea and performance advantages over the barriersynchronization counterpart with unicast barrier releasing.
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