Co-array Fortran is an extension of Fortran having been defined around a decade
ago to allow for asynchronous parallel programming within the Fortran language,
as opposed to methods outside the language (via the OpenMP standard and the
MPI library).  It will be part of the upcoming Fortran 2008 Standard.

As the description by one of its authors mentions:

"A Fortran program containing co-arrays is interpreted as if it were
replicated a fixed number of times and all copies were executed asynchronously.
Each copy has its own set of data objects and is called an image.
The array syntax of Fortran is extended with additional trailing subscripts
in square brackets to give a clear and straightforward representation of
access to data on other images."

The presentation will describe the changes in the parser, intermediate
representation and run-time library of GNU Fortran necessary to implement
co-array Fortran.
In addition, it necessarily will discuss various paradigms in parallel computing.