Abstract base class for storage and retrieval of generalized harmonic quantities communicated from a Cauchy simulation to the Cce system.
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Abstract base class for storage and retrieval of generalized harmonic quantities communicated from a Cauchy simulation to the Cce system.
Details
The functions that are required to be overriden in the derived classes are:
- GhInterfaceManager::get_clone(): should return a std::unique_ptr<GhInterfaceManager> with cloned state.
- GhInterfaceManager::insert_gh_data(): should store the portions of the provided generalized harmonic data that are required to provide useful boundary values for the CCE evolution at requested timesteps.
- GhInterfaceManager::request_gh_data(): should register requests from the CCE evolution for boundary data.
- GhInterfaceManager::retrieve_and_remove_first_ready_gh_data(): should return a std::optional<std::tuple<TimeStepId,
tnsr::aa<DataVector, 3>, tnsr::iaa<DataVector, 3>, tnsr::aa<DataVector, 3>>> containing the boundary data associated with the oldest requested timestep if enough data has been supplied via insert_gh_data() to determine the boundary data. Otherwise, return a std::nullopt to indicate that the CCE system must continue waiting for generalized harmonic input.
- GhInterfaceManager::number_of_pending_requests(): should return the number of requests that have been registered to the class that do not yet been retrieved via retrieve_and_remove_first_ready_gh_data().
- GhInterfaceManager::number_of_gh_times(): should return the number of time steps sent to insert_gh_data() that have not yet been retrieved via retrieve_and_remove_first_ready_gh_data().