@InProceedings{SampsonBrown09,
  title =        "{C}locks",
  author=        "Sampson,  Adam T. and Brown,  Neil C.C.",
  editor=        "Welch, Peter H. and Roebbers,  Herman and Broenink,  Jan F. and Barnes,  Frederick R. M. and Ritson,  Carl G. and Sampson,  Adam T. and Stiles,  G. S. and Vinter,  Brian",
  pages =        "--",
  booktitle=     "{C}ommunicating {P}rocess {A}rchitectures 2009",
  isbn=          "978-1-60750-065-0",
  year=          "2009",
  month=         "nov",
  abstract=      "As part of the CoSMoS project, we have implemented a variety
     of
complex systems simulations using occam-pi. occam-pi is
     unusual in
that it provides built-in support for
     synchronisation against a
real-time clock, but simulations
     generally need to run faster or
slower than real time.  We
     describe the idea of a \textquotedblclock\textquotedbl -- a
     new
synchronisation primitive for process-oriented
     programming, similar to
a barrier but extended with a sense
     of time. Clocks can be used to
provide simulated time in a
     complex systems simulation, and can also
be used to
     implement efficient phase synchronisation for
     controlling
access to shared resources."
}