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Chain / Star
Under this links you can find more about chain or star architectures. It is assumed that the results are not returned to the originator.
The Chain/Star tab contains three fields.
In the first one you have to choose the architecture and fill in the number of processors (m) and volume of data (V) fields. Then you should choose communication type (with or without communication coprocessors).
Next you should click Generate button and the table is shown in the second field.
The table in the second field contains as many rows as the number of processors you filled in the number of processors field. To find a distribution of the load you have to fill in all empty fields with numbers (all values must be positive, exponent notation is allowed, e.g. 1E3):
Processing rate A - inverse of processing speed (time needed to process one data unit)
Communication rate C - inverse of communication speed (time needed to send one data unit)
Startup S - startup time (communication delay incurred during the initialization of the connection)
The first processor is an originator so we don`t need its startup and communication time.
After filling in all the fields you can click Find solution button to generate a solution for your data.
The third field is shown with the load of assignment for every
processor and the schedule length Cmax.