High level sequence of steps which can be followed to design/develop concurrent processes

• Start with a well tuned and fully functional serial processing design/code to solve the problem.

• Come-up with a design to solve the problem using concurrency.

• Calculate the speedup and efficiency of the design for concurrency.

• If sufficient speedup can be expected from the calculation, develop the code to do concurrent processing.

• Test the code and verify the results for various scenarios. Care need to be taken to verify situations like correctness for loop executions, rounding errors of numerical values, etc.

• Tune the code for performance and to minimize hotspots by identifying it through tools like profilers.

• Compare the performance and elapsed time of the serial code against the code for concurrency.

• If the performance has significant improvement implement concurrent processing instead of the serial processing code.

All these steps may not be applicable for a given situation, but following through them provides a good guideline.