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      PHR: A parallel hierarchical radiosity system with dynamic load balancing

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      Author(s)
      Sinop, A.
      Abacı, T.
      Akkuş Ü.
      Gürsoy, A.
      Güdükbay, Uğur
      Date
      2005
      Source Title
      Journal of Supercomputing
      Print ISSN
      1573-0484
       
      0920-8542
       
      Publisher
      Springer
      Volume
      31
      Issue
      3
      Pages
      249 - 263
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      In this paper, we present a parallel system called PHR for computing hierarchical radiosity solutions of complex scenes. The system is targeted for multi-processor architectures with distributed memory. The system evaluates and subdivides the interactions level by level in a breadth first fashion, and the interactions are redistributed at the end of each level to keep load balanced. In order to allow interactions freely travel across processors, all the patch data is replicated on all the processors. Hence, the system favors load balancing at the expense of increased communication volume. However, the results show that the overhead of communication is negligible compared with total execution time. We obtained a speed-up of 25 for 32 processors in our test scenes. © 2005 Springer Science + Business Media, Inc.
      Keywords
      Distributed memory architectures
      Hierarchical radiosity
      Load balancing
      Algorithms
      Computer graphics
      Distributed computer systems
      Dynamic loads
      Heat transfer
      Hierarchical systems
      Integration
      Multiprocessing systems
      Distributed memory architectures
      Hierarchical radiosity
      Load balancing
      Photo-realistic image generators
      Parallel processing systems
      Permalink
      http://hdl.handle.net/11693/24099
      Published Version (Please cite this version)
      http://dx.doi.org/10.1007/s11227-005-0107-4
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      • Department of Computer Engineering 1568
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