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Static versus Dynamic Scheduling

Recall the Structural Hazard: Cannot proceed with an operation because a resource is in use. To overcome hazards we must use shedulling and arbitration:

One scheduling decision impacts on another: ideally need to find a global optimum.

The scheduling and arbitration operations can often be done at compile-time, (e.g. for constant-time operations performed by a single behavioural thread).

Remainder must be done at run-time according to actual input data since some operations may be vari-time and the relative interleaving of different threads is often unpredictable.


32: (C) 2012-17, DJ Greaves, University of Cambridge, Computer Laboratory.