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Characteristics
The heuristics performed by the adequation use the characteristics of
each algorithm definition and each relation (edge) between algorithm
definition, relatively to the operators and the media it may be
distributed to. Presently we are mainly interested in real-time
performances then the vertices and the edges of the algorithm graph
must be characterized in terms of
duration relatively to the vertex types of the architecture graph.
Communication characterizations are explained in section ``Medium''.
Notice that the command MAIN DEFINITION PORT TYPES LIST in the
ALGORITHM menu gives you a list of all port types used in your main
definition algorithm and its subhierarchy, which may
simplify the specification of communication characterizations.
To perform definitions characterization, you have two possibilities: -
choose the option DURATIONS in the EDIT menu of an algorithm window
(this will open a dialog window in order to input the
characteristics), - edit the definition of the operator and use the
button MODIFY DURATIONS (this will open a dialog window in order to
input the
characteristics).
WARNING : You must characterize all vertices of the transformed graph
(see below).
Next: Adequation
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Julien Forget
2003-03-21