AutoPasConfigurationCommunicator.h File Reference

#include <array>
#include <cstddef>
#include <vector>
#include "WrapMPI.h"
#include "autopas/containers/ParticleContainerInterface.h"
#include "autopas/tuning/Configuration.h"
#include "autopas/utils/ExceptionHandler.h"
#include "autopas/utils/NumberSet.h"
#include "autopas/utils/SimilarityFunctions.h"

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Namespaces
namespace	autopas
	This is the main namespace of AutoPas.
namespace	autopas::utils
	In this namespace some helper classes and functions can be found used inside of AutoPas.
namespace	autopas::utils::AutoPasConfigurationCommunicator
	Provides several functions for handling configurations among mpi ranks.

Typedefs
using	autopas::utils::AutoPasConfigurationCommunicator::SerializedConfiguration = std::array< std::byte, 14 >
	type definition for the serialization of configurations.

Functions
template<typename TOption >
std::byte	autopas::utils::AutoPasConfigurationCommunicator::castToByte (TOption option)
	Simply a shorter way of static_casting from Option to std::byte.
size_t	autopas::utils::AutoPasConfigurationCommunicator::getSearchSpaceSize (const std::set< ContainerOption > &containerOptions, const NumberSet< double > &cellSizeFactors, const std::set< TraversalOption > &traversalOptions, const std::set< LoadEstimatorOption > &loadEstimatorOptions, const std::set< DataLayoutOption > &dataLayoutOptions, const std::set< Newton3Option > &newton3Options, const InteractionTypeOption &interactionTypeOption)
	Calculates the maximum number of valid configs from several sets of options.
void	autopas::utils::AutoPasConfigurationCommunicator::distributeConfigurations (std::set< ContainerOption > &containerOptions, NumberSet< double > &cellSizeFactors, std::set< TraversalOption > &traversalOptions, std::set< LoadEstimatorOption > &loadEstimatorOptions, std::set< DataLayoutOption > &dataLayoutOptions, std::set< Newton3Option > &newton3Options, InteractionTypeOption interactionTypeOption, int rank, int commSize)
	Distributes the provided configurations globally for equal work loads.
void	autopas::utils::AutoPasConfigurationCommunicator::distributeRanksInBuckets (AutoPas_MPI_Comm comm, AutoPas_MPI_Comm *bucket, double smoothedHomogeneity, double maxDensity, double MPITuningMaxDifferenceForBucket, double MPITuningWeightForMaxDensity)
	Distribute ranks in buckets, which contain only ranks with similar scenarios.
SerializedConfiguration	autopas::utils::AutoPasConfigurationCommunicator::serializeConfiguration (Configuration configuration)
	Serializes a configuration object for communication via MPI.
std::vector< std::byte >	autopas::utils::AutoPasConfigurationCommunicator::serializeConfigurations (const std::vector< Configuration > &configurations)
	Serialize a vector of configuration objects into a vector of bytes via serializeConfiguration().
Configuration	autopas::utils::AutoPasConfigurationCommunicator::deserializeConfiguration (SerializedConfiguration config)
	Recreates a Configuration object from the object obtained by _serializeConfiguration.
std::vector< Configuration >	autopas::utils::AutoPasConfigurationCommunicator::deserializeConfigurations (const std::vector< std::byte > &configurationsSerialized)
	Deserialize a vector of bytes into a vector of configurations.
Configuration	autopas::utils::AutoPasConfigurationCommunicator::findGloballyBestConfiguration (AutoPas_MPI_Comm comm, Configuration localOptimalConfig, long localOptimalTime)
	Handles communication to select the globally best configuration.
std::vector< Configuration >	autopas::utils::AutoPasConfigurationCommunicator::gatherConfigurations (AutoPas_MPI_Comm comm, const std::vector< Configuration > &localConfigurations, int root)
	Gather the configuration vectors of all ranks in the communicator into one vector at the root process.

Detailed Description

Author

W. Thieme

Date

30.04.2020