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and all associated frontend, backend and testing functionality, as a demo
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Example PR A
This example PR demonstrates how to add a new, standard QuEST function. As an illustration, it implements
calcAmpSum()(andcalcRealAmpSum()) which returns the sum of all amplitudes in aQureg(or just its real component).The PR combines the changes of the four PRs below which each illustrate an isolated "step" of implementing a new feature.
calcRealAmpSum()frontendcalc(Real)AmpSum()backendcalcRealAmpSum()unit testscalcAmpSum()frontendThese individual PRs document how to expose and document the new function, validate its user inputs, implement its accelerated backends (distributed, multithreaded and GPU-accelerated) and its unit tests. It also demonstrates some extra steps needed to maintain
CandC++agnosticism when the new function returns aqcompdirectly, ascalcAmpSum()does.