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parameters.h
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parameters.h
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/*
* This file is part of Vlasiator.
* Copyright 2010-2016 Finnish Meteorological Institute
*
* For details of usage, see the COPYING file and read the "Rules of the Road"
* at http://www.physics.helsinki.fi/vlasiator/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef PARAMETERS_H
#define PARAMETERS_H
#include <limits>
#include <mpi.h>
#include <stdint.h>
#include <string>
#include <vector>
#include "definitions.h"
const uint64_t INVALID_CELLID = 0;
struct Parameters {
static int geometry; /**< Simulation geometry, one of the values defined in
* geometry::Setup. Defaults to geometry::XYZ6D.*/
static Real xmin; /*!< X-coordinate of the lower left corner of the spatial grid. */
static Real xmax; /*!< X-coordinate of the upper right corner of the spatial grid. */
static Real ymin; /*!< Y-coordinate of the lower left corner of the spatial grid. */
static Real ymax; /*!< Y-coordinate of the upper right corner of the spatial grid. */
static Real zmin; /*!< Z-coordinate of the lower left corner of the spatial grid. */
static Real zmax; /*!< Z-coordinate of the upper right corner of the spatial grid. */
static Real dx_ini; /*!< Initial size of spatial cell in x-direction. */
static Real dy_ini; /*!< Initial size of spatial cell in y-direction. */
static Real dz_ini; /*!< Initial size of spatial cell in z-direction. */
static uint xcells_ini; /*!< Initial number of spatial cells in x-direction. */
static uint ycells_ini; /*!< Initial number of spatial cells in y-direction. */
static uint zcells_ini; /*!< Initial number of spatial cells in z-direction. */
static Real t; /*!< Current simulation time. */
static Real t_min; /*!< Initial simulation time. */
static Real t_max; /*!< Maximum simulation time. */
static Real dt; /*!< The value of the timestep to use in propagation. If CflLimit defined then it is dynamically updated during simulation*/
static Real vlasovSolverMaxCFL; /*!< The maximum CFL limit for propagation of distribution function. Used to set timestep if useCFLlimit is true. */
static Real vlasovSolverMinCFL; /*!< The minimum CFL limit for propagation of distribution function. Used to set timestep if useCFLlimit is true. */
static Real fieldSolverMinCFL; /*!< The minimum CFL limit for propagation of fields. Used to set timestep if useCFLlimit is true.*/
static Real fieldSolverMaxCFL; /*!< The maximum CFL limit for propagation of fields. Used to set timestep if useCFLlimit is true.*/
static uint fieldSolverSubcycles; /*!< The number of field solver subcycles to compute.*/
static uint tstep_min; /*!< Timestep when simulation starts, needed for restarts.*/
static uint tstep_max; /*!< Maximum timestep. */
static uint tstep; /*!< The number of the current timestep. 0=initial state. */
static bool meshRepartitioned; /*!< If true, mesh was repartitioned on this time step.*/
static std::vector<CellID> localCells; /*!< Cached copy of spatial cell IDs on this process.*/
static uint diagnosticInterval;
static std::vector<std::string> systemWriteName; /*!< Names for the different classes of grid output*/
static std::vector<std::string> systemWritePath; /*!< Save this series in this location. Default is ./ */
static std::vector<Real> systemWriteTimeInterval;/*!< Interval in simusecond for output for each class*/
static std::vector<int> systemWriteDistributionWriteStride; /*!< Every this many cells write out their velocity space in each class. */
static std::vector<int> systemWriteDistributionWriteXlineStride; /*!< Every this many lines of cells along the x direction write out their velocity space in each class. */
static std::vector<int> systemWriteDistributionWriteYlineStride; /*!< Every this many lines of cells along the y direction write out their velocity space in each class. */
static std::vector<int> systemWriteDistributionWriteZlineStride; /*!< Every this many lines of cells along the z direction write out their velocity space in each class. */
static std::vector<int> systemWrites; /*!< How many files have been written of each class*/
static std::vector<std::pair<std::string,std::string>> systemWriteHints; /*!< Collection of MPI-IO hints passed for non-restart IO. Pairs of key-value strings. */
static bool writeInitialState; /*!< If true, initial state is written. This is useful for debugging as the restarts are always written out after propagation of 0.5dt in real space.*/
static Real saveRestartWalltimeInterval; /*!< Interval in walltime seconds for restart data*/
static uint exitAfterRestarts; /*!< Exit after this many restarts*/
static uint64_t vlsvBufferSize; /*!< Buffer size in bytes passed to VLSV writer. */
static int restartStripeFactor; /*!< stripe_factor for restart writing*/
static std::string restartWritePath; /*!< Path to the location where restart files should be written. Defaults to the local directory, also if the specified destination is not writeable. */
static uint transmit;
/*!< Indicates the data that needs to be transmitted to remote nodes.
* This is created with bitwise or from the values defined in
* namespace Transmit.*/
static bool recalculateStencils; /*!< If true, MPI stencils should be recalculated because of load balancing.*/
static bool propagateField; /*!< If true, magnetic field is propagated during the simulation.*/
static bool propagatePotential; /*!< If true, electrostatic potential is solved during the simulation.*/
static bool propagateVlasovAcceleration; /*!< If true, distribution function is propagated in velocity space during the simulation.*/
static bool propagateVlasovTranslation; /*!< If true, distribution function is propagated in ordinary space during the simulation.*/
static Real maxWaveVelocity; /*!< Maximum wave velocity allowed in LDZ. */
static uint maxFieldSolverSubcycles; /*!< Maximum allowed field solver subcycles. */
static Real resistivity; /*!< Resistivity in Ohm's law eta*J term. */
static uint ohmHallTerm; /*!< Enable/choose spatial order of Hall term in Ohm's law JXB term. 0: off, 1: 1st spatial order, 2: 2nd spatial order. */
static uint ohmGradPeTerm; /*!< Enable/choose spatial order of the electron pressure gradient term in Ohm's law. 0: off, 1: 1st spatial order. */
static Real electronTemperature; /*!< Constant electron temperature to be used for the electron pressure gradient term (K). */
static bool fieldSolverDiffusiveEterms; /*!< Enable resistive terms in the computation of E*/
static Real maxSlAccelerationRotation; /*!< Maximum rotation in acceleration for semilagrangian solver*/
static int maxSlAccelerationSubcycles; /*!< Maximum number of subcycles in acceleration*/
static Real hallMinimumRhom; /*!< Minimum mass density value used in the field solver.*/
static Real hallMinimumRhoq; /*!< Minimum charge density value used for the Hall and electron pressure gradient terms in the Lorentz force and in the field solver.*/
static std::string loadBalanceAlgorithm; /*!< Algorithm to be used for load balance.*/
static std::string loadBalanceTolerance; /*!< Load imbalance tolerance. */
static uint rebalanceInterval; /*!< Load rebalance interval (steps). */
static bool prepareForRebalance; /**< If true, propagators should measure their time consumption in preparation
* for mesh repartitioning.*/
static std::vector<std::string> outputVariableList; /*!< List of data reduction operators (DROs) to add to the grid file output.*/
static std::vector<std::string> diagnosticVariableList; /*!< List of data reduction operators (DROs) to add to the diagnostic runtime output.*/
static std::string restartFileName; /*!< If defined, restart from this file*/
static bool isRestart; /*!< true if this is a restart, false otherwise */
static int writeAsFloat; /*!< true if writing into VLSV in floats instead of doubles, false otherwise */
static bool dynamicTimestep; /*!< If true, timestep is set based on CFL limit */
static std::string projectName; /*!< Project to be used in this run. */
static bool bailout_write_restart; /*!< If true, write a restart file on bailout. Gets reset when sending a STOP (true) or a KILL (false). */
static Real bailout_min_dt; /*!< Minimum time step below which bailout occurs (s). */
static Real bailout_max_memory; /*!< Maximum amount of memory used per node (in GiB) over which bailout occurs. */
static uint amrMaxVelocityRefLevel; /**< Maximum velocity mesh refinement level, defaults to 0.*/
static Realf amrCoarsenLimit; /**< If the value of refinement criterion is below this value, block can be coarsened.
* The value must be smaller than amrRefineLimit.*/
static Realf amrRefineLimit; /**< If the value of refinement criterion is larger than this value, block should be refined.
* The value must be larger than amrCoarsenLimit.*/
static std::string amrVelRefCriterion; /**< Name of the velocity block refinement criterion function.*/
/*! \brief Add the global parameters.
*
* This function adds all the parameters that are loaded at a global level.
* More are being loaded e.g. in the projects and in the system boundary conditions.
*
* Note that due to the large number of parameters added here, no code is added to check
* for consistency when they are read later. Please make sure when coding new parameters
* here that the options in getParameters match the ones added here.
*
* \sa getParameters
*/
static bool addParameters();
/*! \brief Get the global parameters.
*
* This function gets all the parameters loaded at a global level.
* More are being loaded e.g. in the projects and in the system boundary conditions.
*
* Note that due to the large number of parameters read here, no code is added to check
* for consistency with the loaded options, or the code here would become much less
* readable. Please make sure when coding new parameters here that the options in
* addParameters match the ones read here.
*
* \param firstPass determines whether to only parse out particle populations (first pass),
* to parse all other parameters.
* \sa addParameters
*/
static bool getParameters();
};
#endif