At the system level, the total execution time of the
design should be the dynamic sum of the
estimation time of leaf function
nodes,without going into any more granularity of timing. It is crude, but very useful in the early stages
of designing.
Profiling tools of
chosen processors can achieve the execution time of leaf nodes.
After using
profiling tools and estimation tools, the estimation time should be written back to SpecC model using the
waitfor keyword. This step will take the
untimed system level specification model into a
timed one.
Estimates for
communication are also needed.