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Paper Details

  title = "{D}evelopment of a {F}amily of {M}ulti-{C}ore {D}evices {U}sing {H}ierarchical {A}bstraction",
  author= "Duller, Andrew and Gray, Alan and Towner, Daniel and Iles, Jamie and Panesar, Gajinder and Robbins, Will",
  editor= "McEwan, Alistair A. and Schneider, Steve and Ifill, Wilson and Welch, Peter H.",
  pages = "465--478",
  booktitle= "{C}ommunicating {P}rocess {A}rchitectures 2007",
  isbn= "978-1-58603-767-3",
  year= "2007",
  month= "jul",
  abstract= "picoChip has produced a range of commercially deployed
     multi-core devices, all of which have the same on-chip
     deterministic communications structure (the picoBus) but
     vary widely in the number and type of cores which make up
     the devices. Systems are developed from processes connected
     using unidirectional signals. Individual processes are
     described using standard C or assembly language and are
     grouped together in a hierarchical description of the
     overall system. This paper discusses how families of chips
     may be developed by \"hardening\" structures in
     the hierarchy of an existing software system. Hardening is
     the process of replacing sets of communicating processes
     with an equivalent hardware accelerator, without changing
     the interface to that sub-system. Initial development is
     performed using a completely software implementation, which
     has advantages in terms of \"time to market\".
     When cost/power reductions are required, the proposed
     hardening process can be used to convert certain parts of a
     design into fixed hardware. These can then be included in
     the next generation of the device. The same tool chain is
     used for all devices and this means that verification of the
     hardware accelerator against the original system is
     simplified. The methodology discussed has been used to
     produce a family of devices which have been deployed in a
     wide range of wireless applications around the world."

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