mod_global_parameters.t File Reference
Go to the source code of this file.
Modules | |
| module | mod_global_parameters |
| This module contains definitions of global parameters and variables and some generic functions/subroutines used in AMRVAC. | |
Functions/Subroutines | |
| pure subroutine | mod_global_parameters::cross_product (ixil, ixol, a, b, axb) |
| Cross product of two vectors. | |
Variables | |
| double precision | mod_global_parameters::xprob |
| minimum and maximum domain boundaries for each dimension | |
| double precision | mod_global_parameters::l |
| double precision, dimension(^nd) | mod_global_parameters::dxlevel |
| store unstretched cell size of current level | |
| double precision, dimension(^nd) | mod_global_parameters::qstretch_baselevel |
| stretch factor between cells at AMR level 1, per dimension | |
| double precision | mod_global_parameters::xstretch |
| physical extent of stretched border in symmetric stretching | |
| double precision, dimension(:), allocatable, parameter | mod_global_parameters::d = 1| |
| double precision | mod_global_parameters::time_between_print |
| to monitor timeintegration loop at given wall-clock time intervals | |
| double precision | mod_global_parameters::time_bc |
| accumulated wall-clock time spent on boundary conditions | |
| double precision | mod_global_parameters::dt |
| global time step | |
| double precision | mod_global_parameters::courantpar |
| The Courant (CFL) number used for the simulation. | |
| double precision | mod_global_parameters::dtpar |
| If dtpar is positive, it sets the timestep dt, otherwise courantpar is used to limit the time step based on the Courant condition. | |
| double precision | mod_global_parameters::dtdiffpar |
| For resistive MHD, the time step is also limited by the diffusion time: \( dt < dtdiffpar \times dx^2/eta \). | |
| double precision | mod_global_parameters::global_time |
| The global simulation time. | |
| double precision | mod_global_parameters::time_init |
| Start time for the simulation. | |
| double precision | mod_global_parameters::time_max |
| End time for the simulation. | |
| double precision | mod_global_parameters::wall_time_max |
| Ending wall time (in hours) for the simulation. | |
| double precision | mod_global_parameters::dtmin |
| Stop the simulation when the time step becomes smaller than this value. | |
| double precision | mod_global_parameters::length_convert_factor |
| Conversion factor for length unit. | |
| double precision | mod_global_parameters::time_convert_factor |
| Conversion factor for time unit. | |
| double precision | mod_global_parameters::tfixgrid |
| Fix the AMR grid after this time. | |
| double precision | mod_global_parameters::unit_length =1.d0 |
| Physical scaling factor for length. | |
| double precision | mod_global_parameters::unit_time =1.d0 |
| Physical scaling factor for time. | |
| double precision | mod_global_parameters::unit_density =1.d0 |
| Physical scaling factor for density. | |
| double precision | mod_global_parameters::unit_velocity =1.d0 |
| Physical scaling factor for velocity. | |
| double precision | mod_global_parameters::unit_temperature =1.d0 |
| Physical scaling factor for temperature. | |
| double precision | mod_global_parameters::unit_pressure =1.d0 |
| Physical scaling factor for pressure. | |
| double precision | mod_global_parameters::unit_magneticfield =1.d0 |
| Physical scaling factor for magnetic field. | |
| double precision | mod_global_parameters::unit_numberdensity =1.d0 |
| Physical scaling factor for number density. | |
| double precision | mod_global_parameters::unit_charge =1.d0 |
| Physical scaling factor for charge. | |
| double precision | mod_global_parameters::unit_mass =1.d0 |
| Physical scaling factor for mass. | |
| double precision | mod_global_parameters::c_norm =1.d0 |
| Normalised speed of light. | |
| double precision | mod_global_parameters::arad_norm =1.d0 |
| Normalised radiation constant. | |
| double precision | mod_global_parameters::unit_opacity =1.d0 |
| Physical scaling factor for Opacity. | |
| double precision | mod_global_parameters::unit_radflux =1.d0 |
| Physical scaling factor for radiation flux. | |
| double precision | mod_global_parameters::unit_erad =1.d0 |
| Physical scaling factor for radiation energy density. | |
| double precision | mod_global_parameters::const_rad_a |
| Physical factors useful for radiation fld. | |
| double precision | mod_global_parameters::const_kappae |
| double precision | mod_global_parameters::const_sigmasb |
| double precision | mod_global_parameters::small_temperature |
| error handling | |
| double precision | mod_global_parameters::small_pressure |
| double precision | mod_global_parameters::small_density |
| double precision | mod_global_parameters::small_e |
| double precision | mod_global_parameters::small_r_e |
| double precision | mod_global_parameters::phys_trac_mask |
| double precision | mod_global_parameters::minfip =1.d0 |
| double precision | mod_global_parameters::maxfip =4.d0 |
| double precision | mod_global_parameters::bdip =0.d0 |
| amplitude of background dipolar, quadrupolar, octupolar, user's field | |
| double precision | mod_global_parameters::bquad =0.d0 |
| double precision | mod_global_parameters::boct =0.d0 |
| double precision | mod_global_parameters::busr =0.d0 |
| double precision | mod_global_parameters::xload |
| Stores the memory and load imbalance, used in printlog. | |
| double precision | mod_global_parameters::xmemory |
| double precision | mod_global_parameters::tvdlfeps |
| double precision | mod_global_parameters::rk_a21 |
| RK2(alfa) method parameters from Butcher tableau. | |
| double precision | mod_global_parameters::rk_b1 |
| double precision | mod_global_parameters::rk_b2 |
| double precision | mod_global_parameters::imex222_lambda |
| IMEX-222(lambda) one-parameter family of schemes. | |
| double precision | mod_global_parameters::rk_beta11 |
| double precision | mod_global_parameters::rk_beta22 |
| double precision | mod_global_parameters::rk_beta33 |
| double precision | mod_global_parameters::rk_beta44 |
| double precision | mod_global_parameters::rk_c2 |
| double precision | mod_global_parameters::rk_c3 |
| double precision | mod_global_parameters::rk_c4 |
| double precision | mod_global_parameters::rk_alfa21 |
| double precision | mod_global_parameters::rk_alfa22 |
| double precision | mod_global_parameters::rk_alfa31 |
| double precision | mod_global_parameters::rk_alfa33 |
| double precision | mod_global_parameters::rk_alfa41 |
| double precision | mod_global_parameters::rk_alfa44 |
| double precision | mod_global_parameters::rk_beta54 |
| double precision | mod_global_parameters::rk_beta55 |
| double precision | mod_global_parameters::rk_alfa53 |
| double precision | mod_global_parameters::rk_alfa54 |
| double precision | mod_global_parameters::rk_alfa55 |
| double precision | mod_global_parameters::rk_c5 |
| double precision | mod_global_parameters::rk3_a21 |
| double precision | mod_global_parameters::rk3_a31 |
| double precision | mod_global_parameters::rk3_a32 |
| double precision | mod_global_parameters::rk3_b1 |
| double precision | mod_global_parameters::rk3_b2 |
| double precision | mod_global_parameters::rk3_b3 |
| double precision | mod_global_parameters::rk3_c2 |
| double precision | mod_global_parameters::rk3_c3 |
| double precision | mod_global_parameters::ars_gamma |
| IMEX_ARS3 parameter ars_gamma. | |
| double precision | mod_global_parameters::imex_a21 |
| double precision | mod_global_parameters::imex_a31 |
| double precision | mod_global_parameters::imex_a32 |
| double precision | mod_global_parameters::imex_b1 |
| double precision | mod_global_parameters::imex_b2 |
| double precision | mod_global_parameters::imex_ha21 |
| double precision | mod_global_parameters::imex_ha22 |
| double precision | mod_global_parameters::imex_b3 |
| double precision | mod_global_parameters::imex_c2 |
| double precision | mod_global_parameters::imex_c3 |
| double precision | mod_global_parameters::imex_a22 |
| IMEX_CB3a extra parameters. | |
| double precision | mod_global_parameters::imex_a33 |
| double precision | mod_global_parameters::imex_ha32 |
| double precision | mod_global_parameters::cmax_global |
| global fastest wave speed needed in fd scheme and glm method | |
| double precision | mod_global_parameters::vmax_global |
| global fastest flow speed needed in glm method | |
| double precision | mod_global_parameters::instrument_resolution_factor |
| times for enhancing spatial resolution for EUV image/spectra | |
| double precision | mod_global_parameters::r_occultor |
| the white light emission below it (unit=Rsun) is not visible | |
| double precision | mod_global_parameters::los_theta |
| direction of the line of sight (LOS) | |
| double precision | mod_global_parameters::los_phi |
| double precision | mod_global_parameters::image_rotate |
| rotation of image | |
| double precision, dimension(1:3) | mod_global_parameters::x_origin |
| where the is the origin (X=0,Y=0) of image | |
| character(len=std_len) | mod_global_parameters::filename_spectrum |
| Base file name for synthetic EUV spectrum output. | |
| character(len=std_len) | mod_global_parameters::radiation_transfer |
| Synthetic emission transfer mode: thin or thick. | |
| character(len=std_len) | mod_global_parameters::ray_method |
| Synthetic emission ray traversal method. | |
| character(len=std_len) | mod_global_parameters::dat_resolution_mode |
| Data-resolution image spacing: nominal or minimum actual cell size. | |
| character(len=std_len) | mod_global_parameters::emission_model |
| Synthetic emission physical model selector. | |
| logical | mod_global_parameters::instrument_postprocess |
| Post-process dat-resolution EUV images onto the instrument pixel grid. | |
| double precision | mod_global_parameters::radio_frequency |
| Observing frequency for radio free-free synthesis in Hz. | |
| double precision | mod_global_parameters::radio_beam_fwhm |
| Gaussian radio beam full width at half maximum in arcsec. | |
| double precision | mod_global_parameters::radio_beam_pixel_size |
| Output pixel size for radio beam post-processing in arcsec; <=0 uses FWHM/3. | |
| integer | mod_global_parameters::radsyn_pixel_batch |
| Number of image pixels processed in one ray-segment MPI batch. | |
| integer | mod_global_parameters::radsyn_segment_batch_factor |
| Maximum ray segments per pixel batch, as a factor of radsyn_pixel_batch; <=0 uses memory budget. Default value is set from the best spherical u512 benchmark behavior seen so far. | |
| double precision | mod_global_parameters::radsyn_segment_memory_mb |
| Approximate per-rank temporary memory budget, in MiB, for automatic ray-segment batch sizing. | |
| integer | mod_global_parameters::radsyn_segment_comm_factor |
| Maximum ray segments per segmented MPI all-to-all round, as a factor of radsyn_pixel_batch. | |
| logical | mod_global_parameters::radsyn_verbose |
| Print synthetic-emission ray-tracing profiling counters. | |
| double precision | mod_global_parameters::spectrum_window_min |
| spectral window | |
| double precision | mod_global_parameters::spectrum_window_max |
| double precision | mod_global_parameters::location_slit |
| location of the slit | |
| double precision | mod_global_parameters::r_opt_thick |
| for spherical coordinate, region below it (unit=Rsun) is treated as not transparent | |
| double precision, dimension(^nd, 2) | mod_global_parameters::writespshift |
| domain percentage cut off shifted from each boundary when converting data | |
| double precision, dimension(:), allocatable | mod_global_parameters::entropycoef |
| double precision, dimension(:), allocatable | mod_global_parameters::dg |
| extent of grid blocks in domain per dimension, in array over levels | |
| double precision, dimension(:,:), allocatable | mod_global_parameters::rnode |
| Corner coordinates. | |
| double precision, dimension(:,:), allocatable | mod_global_parameters::rnode_sub |
| double precision, dimension(:,:), allocatable | mod_global_parameters::dx |
| spatial steps for all dimensions at all levels | |
| double precision, dimension(:), allocatable | mod_global_parameters::refine_threshold |
| Error tolerance for refinement decision. | |
| double precision, dimension(:), allocatable | mod_global_parameters::derefine_ratio |
| Error tolerance ratio for derefinement decision. | |
| double precision, dimension(:,:), allocatable | mod_global_parameters::qstretch |
| Stretching factors and first cell size for each AMR level and dimension. | |
| double precision, dimension(:,:), allocatable | mod_global_parameters::dxfirst |
| double precision, dimension(:,:), allocatable | mod_global_parameters::dxfirst_1mq |
| double precision, dimension(:,:), allocatable | mod_global_parameters::dxmid |
| double precision, dimension(:), allocatable | mod_global_parameters::w_convert_factor |
| Conversion factors the primitive variables. | |
| double precision, dimension(:), allocatable | mod_global_parameters::w_refine_weight |
| Weights of variables used to calculate error for mesh refinement. | |
| double precision, dimension(:), allocatable | mod_global_parameters::amr_wavefilter |
| refinement: lohner estimate wavefilter setting | |
| integer, parameter | mod_global_parameters::nsavehi =100 |
| Maximum number of saves that can be defined by tsave or itsave. | |
| integer, parameter | mod_global_parameters::nfile = 5 |
| Number of output methods. | |
| double precision, dimension(nsavehi, nfile) | mod_global_parameters::tsave |
| Save output of type N on times tsave(:, N). | |
| double precision, dimension(nfile) | mod_global_parameters::tsavelast |
| double precision, dimension(nfile) | mod_global_parameters::dtsave |
| Repeatedly save output of type N when dtsave(N) simulation time has passed. | |
| double precision, dimension(nfile) | mod_global_parameters::tsavestart |
| Start of read out (not counting specified read outs). | |
| integer, parameter | mod_global_parameters::ndim =^ND |
| Number of spatial dimensions for grid variables. | |
| integer | mod_global_parameters::npe |
| The number of MPI tasks. | |
| integer | mod_global_parameters::mype |
| The rank of the current MPI task. | |
| integer | mod_global_parameters::icomm |
| The MPI communicator. | |
| integer | mod_global_parameters::ierrmpi |
| A global MPI error return code. | |
| logical | mod_global_parameters::lb_diagnose = .false. |
| Per-rank load-balance timing diagnostic toggle (off by default). When .true., per-rank wall times are gathered every step and written to <basename>_rank_timing.log. | |
| logical | mod_global_parameters::lb_automatic = .false. |
| Cost-weighted automatic load balancer toggle (off by default). When .true., the SFC partitioner cuts on cumulative measured per-block cost rather than on equal block counts. | |
| integer | mod_global_parameters::lb_interval = 10 |
| Rebalance every lb_interval cycles when lb_automatic is on. | |
| double precision | mod_global_parameters::lb_alpha = 0.9d0 |
| Exponential-moving-average decay for the per-block cost. costlist <- lb_alpha*costlist + (1-lb_alpha)*measured. 0 = no memory (volatile), 1 = no update. | |
| double precision | mod_global_parameters::lb_max_block_ratio = 1.25d0 |
| Bound on the memory imbalance get_Morton_range_costed may create: no rank may hold more than lb_max_block_ratio * (nleafs/npe) blocks. Cost balance and memory balance are in tension, as a rank owning cheap blocks must hold more of them to match one owning expensive blocks. 1.0 is the equal-block cut; larger values allow more freedom to follow cost. get_Morton_range_active bounds the same ratio through its wa/wp weights. | |
| double precision, dimension(:), allocatable | mod_global_parameters::block_cost |
| Per-step per-block (per-rank, indexed by igrid) cost accumulator. Reset at start of each advance call; filled inside iigrid loops by the per-block timer wrappers in mod_advance.t and mod_supertimestepping.t. | |
| double precision, dimension(:), allocatable | mod_global_parameters::block_cost_rt |
| Per-step per-block cost of the short-characteristics sweep, indexed by igrid. Separate from block_cost because rt_sc_solve() runs before advance(), which zeroes block_cost on entry. advance() seeds block_cost from this array and clears it for the next solve, so both costs share a partition weight. | |
| double precision | mod_global_parameters::lb_rt_accum = 0.0d0 |
| Per-rank wall time spent in the SC radiative-transfer KBA sweep this step, for the lb_diagnose rank-timing log. Filled by mod_rt_sc_solvers (which runs before advance), gathered and zeroed inside advance's diagnostic block. | |
| double precision, dimension(:), allocatable | mod_global_parameters::costlist |
| Persistent global per-Morton-leaf EWMA cost, in seconds (block_cost is a wall-clock accumulation). Sized to max_blocks*npe (the upper bound on nleafs); only the first nleafs entries are meaningful. Morton numbering is invariant across load_balance migration, so costlist values are correctly preserved when blocks change rank. Refinement events insert/remove Morton indices, after which the EWMA recovers over ~5 cycles. Indexed 1..nleafs. Updated by EWMA blend inside get_Morton_range_costed. | |
| logical, dimension(:), allocatable | mod_global_parameters::costlist_seen |
| Whether the matching costlist slot has ever carried a measurement. Morton indices created by a refinement event have not been timed; they are seeded with the mean of the measured slots, since costlist is a wall time and any fixed seed would be a units error. | |
| integer | mod_global_parameters::log_fh |
| MPI file handle for logfile. | |
| integer | mod_global_parameters::type_block |
| MPI type for block including ghost cells and its size. | |
| integer | mod_global_parameters::size_block |
| integer | mod_global_parameters::type_coarse_block |
| MPI type for block coarsened by 2, and for its children blocks. | |
| integer, dimension(2^d &) | mod_global_parameters::type_sub_block |
| integer, dimension(^nd, 2^d &) | mod_global_parameters::type_coarse_block_stg |
| MPI type for staggered block coarsened by 2, and for its children blocks. | |
| integer, dimension(^nd, 2^d &) | mod_global_parameters::type_sub_block_stg |
| integer | mod_global_parameters::type_block_io |
| MPI type for IO: block excluding ghost cells. | |
| integer | mod_global_parameters::size_block_io |
| integer | mod_global_parameters::type_block_io_stg |
| MPI type for IO of staggered variables. | |
| integer | mod_global_parameters::size_block_io_stg |
| integer | mod_global_parameters::type_block_xc_io |
| MPI type for IO: cell corner (xc) or cell center (xcc) coordinates. | |
| integer | mod_global_parameters::type_block_xcc_io |
| integer | mod_global_parameters::type_block_wc_io |
| MPI type for IO: cell corner (wc) or cell center (wcc) variables. | |
| integer | mod_global_parameters::type_block_wcc_io |
| integer | mod_global_parameters::ixm |
| the mesh range of a physical block without ghost cells | |
| integer | mod_global_parameters::ll |
| integer | mod_global_parameters::r_ = -1 |
| Indices for cylindrical coordinates FOR TESTS, negative value when not used: | |
| integer | mod_global_parameters::phi_ = -1 |
| integer | mod_global_parameters::z_ = -1 |
| integer | mod_global_parameters::ndir =ndim |
| Number of spatial dimensions (components) for vector variables. | |
| integer, parameter | mod_global_parameters::sdim =3 |
| starting dimension for electric field | |
| integer | mod_global_parameters::domain_nx |
| number of cells for each dimension in level-one mesh | |
| integer | mod_global_parameters::block_nx |
| number of cells for each dimension in grid block excluding ghostcells | |
| integer, parameter | mod_global_parameters::ixglo |
| Lower index of grid block arrays (always 1). | |
| integer | mod_global_parameters::ixghi |
| Upper index of grid block arrays. | |
| integer, parameter | mod_global_parameters::ixgslo |
| Lower index of stagger grid block arrays (always 0). | |
| integer | mod_global_parameters::ixgshi |
| Upper index of stagger grid block arrays. | |
| integer | mod_global_parameters::nghostcells = 2 |
| Number of ghost cells surrounding a grid. | |
| integer, parameter | mod_global_parameters::stretch_none = 0 |
| No stretching. | |
| integer, parameter | mod_global_parameters::stretch_uni = 1 |
| Unidirectional stretching from a side. | |
| integer, parameter | mod_global_parameters::stretch_symm = 2 |
| Symmetric stretching around the center. | |
| integer, dimension(ndim) | mod_global_parameters::stretch_type |
| What kind of stretching is used per dimension. | |
| integer, dimension(ndim) | mod_global_parameters::nstretchedblocks_baselevel |
| (even) number of (symmetrically) stretched blocks at AMR level 1, per dimension | |
| integer, dimension(:,:), allocatable | mod_global_parameters::nstretchedblocks |
| (even) number of (symmetrically) stretched blocks per level and dimension | |
| integer, parameter | mod_global_parameters::nodehi =^ND+1 |
| grid hierarchy info (level and grid indices) | |
| integer, parameter | mod_global_parameters::plevel_ =1 |
| integer, parameter | mod_global_parameters::pig |
| integer, parameter | mod_global_parameters::d_ =plevel_+^D |
| integer, dimension(:,:), allocatable | mod_global_parameters::node |
| integer, dimension(:,:), allocatable | mod_global_parameters::node_sub |
| integer, parameter | mod_global_parameters::rnodehi =3*^ND |
| grid location info (corner coordinates and grid spacing) | |
| integer, parameter | mod_global_parameters::rpxmin0_ =0 |
| integer, parameter | mod_global_parameters::rpxmin |
| integer, parameter | mod_global_parameters::rpxmax0_ =^ND |
| integer, parameter | mod_global_parameters::rpxmax |
| integer, parameter | mod_global_parameters::rpdx |
| integer | mod_global_parameters::index_latest_data |
| index number of the latest existing data file | |
| integer, dimension(nsavehi, nfile) | mod_global_parameters::itsave |
| Save output of type N on iterations itsave(:, N). | |
| integer, dimension(nfile) | mod_global_parameters::itsavelast |
| integer, dimension(nfile) | mod_global_parameters::ditsave |
| Repeatedly save output of type N when ditsave(N) time steps have passed. | |
| integer, dimension(nfile) | mod_global_parameters::isavet |
| integer, dimension(nfile) | mod_global_parameters::isaveit |
| integer | mod_global_parameters::collapselevel |
| The level at which to produce line-integrated / collapsed output. | |
| integer, dimension(1:nfile) | mod_global_parameters::n_saves |
| Number of saved files of each type. | |
| integer | mod_global_parameters::snapshotnext |
| IO: snapshot and collapsed views output numbers/labels. | |
| integer | mod_global_parameters::collapsenext |
| integer | mod_global_parameters::slicenext |
| IO: slice output number/label. | |
| integer, parameter | mod_global_parameters::filelog_ = 1 |
| Constant indicating log output. | |
| integer, parameter | mod_global_parameters::fileout_ = 2 |
| Constant indicating regular output. | |
| integer, parameter | mod_global_parameters::fileslice_ = 3 |
| Constant indicating slice output. | |
| integer, parameter | mod_global_parameters::filecollapse_ = 4 |
| Constant indicating collapsed output. | |
| integer, parameter | mod_global_parameters::fileanalysis_ = 5 |
| Constant indicating analysis output (see Writing a custom analysis subroutine). | |
| integer, parameter | mod_global_parameters::unitstdin =5 |
| Unit for standard input. | |
| integer, parameter | mod_global_parameters::unitterm =6 |
| Unit for standard output. | |
| integer, parameter | mod_global_parameters::uniterr =6 |
| Unit for error messages. | |
| integer, parameter | mod_global_parameters::unitpar =9 |
| file handle for IO | |
| integer, parameter | mod_global_parameters::unitconvert =10 |
| integer, parameter | mod_global_parameters::unitslice =11 |
| integer, parameter | mod_global_parameters::unitsnapshot =12 |
| integer, parameter | mod_global_parameters::unitcollapse =13 |
| integer, parameter | mod_global_parameters::unitanalysis =14 |
| integer | mod_global_parameters::nwauxio |
| Number of auxiliary variables that are only included in output. | |
| integer | mod_global_parameters::level_io |
| integer | mod_global_parameters::level_io_min |
| integer | mod_global_parameters::level_io_max |
| integer | mod_global_parameters::type_endian |
| integer | mod_global_parameters::snapshotini |
| Resume from the snapshot with this index. | |
| integer | mod_global_parameters::number_equi_vars = 0 |
| number of equilibrium set variables, besides the mag field | |
| integer | mod_global_parameters::phys_trac_type =1 |
| integer | mod_global_parameters::phys_trac_finegrid =4 |
| integer | mod_global_parameters::phys_trac_nzones =1 |
| double precision, dimension(10) | mod_global_parameters::phys_trac_zone_splits =-1.d0 |
| integer, parameter | mod_global_parameters::type_maxsum =1 |
| integer switchers for type courant | |
| integer, parameter | mod_global_parameters::type_summax =2 |
| integer, parameter | mod_global_parameters::type_minimum =3 |
| integer | mod_global_parameters::max_blocks |
| The maximum number of grid blocks in a processor. | |
| integer, parameter | mod_global_parameters::nlevelshi = 20 |
| The maximum number of levels in the grid refinement. | |
| integer | mod_global_parameters::refine_max_level |
| Maximal number of AMR levels. | |
| integer | mod_global_parameters::itfixgrid |
| Fix the AMR grid after this many time steps. | |
| integer | mod_global_parameters::ditregrid |
| Reconstruct the AMR grid once every ditregrid iteration(s). | |
| integer | mod_global_parameters::refine_criterion |
| select types of refine criterion | |
| integer | mod_global_parameters::nbufferx |
| Number of cells as buffer zone. | |
| integer | mod_global_parameters::levmin |
| integer | mod_global_parameters::levmax |
| integer | mod_global_parameters::levmax_sub |
| integer | mod_global_parameters::iprob |
| problem switch allowing different setups in same usr_mod.t | |
| integer, dimension(3, 3) | mod_global_parameters::kr |
| Kronecker delta tensor. | |
| integer, dimension(3, 3, 3) | mod_global_parameters::lvc |
| Levi-Civita tensor. | |
| integer | mod_global_parameters::type_courant =1 |
| How to compute the CFL-limited time step. | |
| integer | mod_global_parameters::it |
| Number of time steps taken. | |
| integer | mod_global_parameters::it_max |
| Stop the simulation after this many time steps have been taken. | |
| integer | mod_global_parameters::it_init |
| initial iteration count | |
| integer | mod_global_parameters::slowsteps |
| If > 1, then in the first slowsteps-1 time steps dt is reduced by a factor \( 1 - (1- step/slowsteps)^2 \). | |
| integer | mod_global_parameters::istep |
| Index of the sub-step in a multi-step time integrator. | |
| integer | mod_global_parameters::nstep |
| How many sub-steps the time integrator takes. | |
| integer, parameter | mod_global_parameters::fs_hll =1 |
| flux schemes | |
| integer, parameter | mod_global_parameters::fs_hllc =2 |
| integer, parameter | mod_global_parameters::fs_hlld =3 |
| integer, parameter | mod_global_parameters::fs_hllcd =4 |
| integer, parameter | mod_global_parameters::fs_tvdlf =5 |
| integer, parameter | mod_global_parameters::fs_tvdmu =6 |
| integer, parameter | mod_global_parameters::fs_tvd =7 |
| integer, parameter | mod_global_parameters::fs_hancock =8 |
| integer, parameter | mod_global_parameters::fs_cd =9 |
| integer, parameter | mod_global_parameters::fs_cd4 =10 |
| integer, parameter | mod_global_parameters::fs_fd =11 |
| integer, parameter | mod_global_parameters::fs_source =12 |
| integer, parameter | mod_global_parameters::fs_nul =13 |
| integer | mod_global_parameters::t_stepper =0 |
| time stepper type | |
| integer, parameter | mod_global_parameters::onestep =1 |
| integer, parameter | mod_global_parameters::twostep =2 |
| integer, parameter | mod_global_parameters::threestep =3 |
| integer, parameter | mod_global_parameters::fourstep =4 |
| integer, parameter | mod_global_parameters::fivestep =5 |
| integer | mod_global_parameters::t_integrator =0 |
| time integrator method | |
| integer, parameter | mod_global_parameters::forward_euler =1 |
| integer, parameter | mod_global_parameters::predictor_corrector =2 |
| integer, parameter | mod_global_parameters::ssprk3 =3 |
| integer, parameter | mod_global_parameters::ssprk4 =4 |
| integer, parameter | mod_global_parameters::ssprk5 =5 |
| integer, parameter | mod_global_parameters::imex_euler =6 |
| integer, parameter | mod_global_parameters::imex_sp =7 |
| integer, parameter | mod_global_parameters::rk2_alf =8 |
| integer, parameter | mod_global_parameters::ssprk2 =9 |
| integer, parameter | mod_global_parameters::imex_midpoint =10 |
| integer, parameter | mod_global_parameters::imex_trapezoidal =11 |
| integer, parameter | mod_global_parameters::imex_222 =12 |
| integer, parameter | mod_global_parameters::rk3_bt =13 |
| integer, parameter | mod_global_parameters::imex_ars3 =14 |
| integer, parameter | mod_global_parameters::imex_232 =15 |
| integer, parameter | mod_global_parameters::imex_cb3a =16 |
| integer, parameter | mod_global_parameters::rk4 =17 |
| integer, dimension(:), allocatable | mod_global_parameters::ng |
| number of grid blocks in domain per dimension, in array over levels | |
| integer, dimension(:), allocatable | mod_global_parameters::flux_method |
| Which flux scheme of spatial discretization to use (per grid level). | |
| integer, dimension(:), allocatable | mod_global_parameters::typepred1 |
| The spatial discretization for the predictor step when using a two step PC method. | |
| integer, dimension(:), allocatable | mod_global_parameters::type_limiter |
| Type of slope limiter used for reconstructing variables on cell edges. | |
| integer, dimension(:), allocatable | mod_global_parameters::type_gradient_limiter |
| Type of slope limiter used for computing gradients or divergences, when typegrad or typediv are set to 'limited'. | |
| double precision | mod_global_parameters::ppm_avisc = 0.0d0 |
| Coefficient alpha of the explicit diffusive flux of Mignone et al. 2005 eq. B19-B21, the second half of PPM's dissipation algorithm. 0 = off (default); the paper says "alpha is typically set to 0.1". | |
| double precision | mod_global_parameters::ppm_rjv = 0.0d0 |
| Residual-jump velocity reconstruction (RJV). 0 = off (default), 1 = full strength. | |
| integer | mod_global_parameters::b0i =0 |
| background magnetic field location indicator | |
| integer | mod_global_parameters::prolong_limiter =0 |
| Limiter used for prolongation to refined grids and ghost cells. | |
| integer | mod_global_parameters::boundspeed |
| bound (left/min and right.max) speed of Riemann fan | |
| integer | mod_global_parameters::nxdiffusehllc |
| integer | mod_global_parameters::ssprk_order |
| SSPRK choice of methods (both threestep and fourstep, Shu-Osher 2N* implementation) also fivestep SSPRK54. | |
| integer | mod_global_parameters::rk3_switch |
| RK3 Butcher table. | |
| integer | mod_global_parameters::imex_switch |
| IMEX_232 choice and parameters. | |
| integer, dimension(:, :), allocatable | mod_global_parameters::typeboundary |
| Array indicating the type of boundary condition per variable and per physical boundary. | |
| integer, parameter | mod_global_parameters::bc_special =1 |
| boundary condition types | |
| integer, parameter | mod_global_parameters::bc_cont =2 |
| integer, parameter | mod_global_parameters::bc_symm =3 |
| integer, parameter | mod_global_parameters::bc_asymm =4 |
| integer, parameter | mod_global_parameters::bc_periodic =5 |
| integer, parameter | mod_global_parameters::bc_aperiodic =6 |
| integer, parameter | mod_global_parameters::bc_noinflow =7 |
| integer, parameter | mod_global_parameters::bc_data =8 |
| integer, parameter | mod_global_parameters::bc_character =9 |
| integer, parameter | mod_global_parameters::bc_icarus =10 |
| integer | mod_global_parameters::wavelength |
| wavelength for output | |
| integer | mod_global_parameters::emin_sxr |
| integer | mod_global_parameters::emax_sxr |
| integer | mod_global_parameters::spectrum_wl |
| wave length for spectrum | |
| integer | mod_global_parameters::direction_slit |
| direction of the slit (for dat resolution only) | |
| logical | mod_global_parameters::slab |
| Cartesian geometry or not. | |
| logical | mod_global_parameters::slab_uniform |
| uniform Cartesian geometry or not (stretched Cartesian) | |
| logical | mod_global_parameters::local_timestep = .false. |
| each cell has its own timestep or not | |
| logical, dimension(nfile) | mod_global_parameters::save_file |
| whether or not to save an output file | |
| logical | mod_global_parameters::stretch_uncentered |
| If true, adjust mod_geometry routines to account for grid stretching (but the flux computation will not). | |
| logical, dimension(ndim) | mod_global_parameters::stretched_dim |
| True if a dimension is stretched. | |
| logical | mod_global_parameters::resume_previous_run |
| If true, restart a previous run from the latest snapshot. | |
| logical | mod_global_parameters::convert |
| If true and restart_from_file is given, convert snapshots to other file formats. | |
| logical | mod_global_parameters::autoconvert |
| If true, already convert to output format during the run. | |
| logical | mod_global_parameters::saveprim |
| If true, convert from conservative to primitive variables in output. | |
| logical | mod_global_parameters::time_advance |
| do time evolving | |
| logical | mod_global_parameters::final_dt_exit |
| Force timeloop exit when final dt < dtmin. | |
| logical | mod_global_parameters::reset_time |
| If true, reset iteration count and global_time to original values, and start writing snapshots at index 0. | |
| logical | mod_global_parameters::reset_it |
| If true, reset iteration count to 0. | |
| logical | mod_global_parameters::final_dt_reduction |
| If true, allow final dt reduction for matching time_max on output. | |
| logical | mod_global_parameters::firstprocess |
| If true, call initonegrid_usr upon restarting. | |
| logical | mod_global_parameters::allow_ndir_change |
| If true, allow a restart from a snapshot whose ndir differs from the current run (e.g. hd ndir=2 -> mhd ndir=3). Block I/O is ndim-based only, so the data loads exactly; use usr_transform_w to place the source vars into the right slots. | |
| logical | mod_global_parameters::pass_wall_time |
| If true, wall time is up, modify snapshotnext for later overwrite. | |
| logical | mod_global_parameters::h_correction =.false. |
| If true, do H-correction to fix the carbuncle problem at grid-aligned shocks. | |
| logical | mod_global_parameters::reset_grid |
| If true, rebuild the AMR grid upon restarting. | |
| logical | mod_global_parameters::stagger_grid =.false. |
| True for using stagger grid. | |
| logical | mod_global_parameters::ghostcell_comm_batched =.false. |
| Limit outstanding ghost-cell send requests to avoid MPI request pressure. In large-scale MHD tests, the original all-at-once ghost-cell exchange could stall during spherical u512 initialization. Batching avoids that failure mode, while u256 5-step tests showed less than 0.1% total runtime difference. The original path is still available by setting this to false; if batching remains stable in broader tests, the old path can be removed later. Disabled by default; set this to true to opt in. | |
| integer | mod_global_parameters::ghostcell_comm_batch_size =64 |
| logical | mod_global_parameters::record_electric_field =.false. |
| True for record electric field. | |
| logical | mod_global_parameters::dat_resolution |
| resolution of the images | |
| logical | mod_global_parameters::output_tau |
| output optical-depth map for synthetic emission when available | |
| logical | mod_global_parameters::output_absorption_fraction |
| output absorption fraction for thick/thin EUV synthesis when available | |
| logical, dimension(ndim) | mod_global_parameters::collapse |
| If collapse(DIM) is true, generate output integrated over DIM. | |
| logical | mod_global_parameters::nocartesian |
| IO switches for conversion. | |
| logical | mod_global_parameters::use_particles =.false. |
| Use particles module or not. | |
| logical | mod_global_parameters::use_multigrid = .false. |
| Use multigrid (only available in 2D and 3D). | |
| logical | mod_global_parameters::prolongprimitive =.false. |
| prolongate primitive variables in level-jump ghost cells | |
| logical | mod_global_parameters::coarsenprimitive =.false. |
| coarsen primitive variables in level-jump ghost cells | |
| logical | mod_global_parameters::crash =.false. |
| Save a snapshot before crash a run met unphysical values. | |
| logical | mod_global_parameters::check_small_values =.true. |
| check and optionally fix unphysical small values (density, gas pressure) | |
| logical | mod_global_parameters::fix_small_values =.false. |
| fix small values with average or replace methods | |
| logical | mod_global_parameters::b0field =.false. |
| split magnetic field as background B0 field | |
| logical | mod_global_parameters::b0fieldalloccoarse =.false. |
| logical | mod_global_parameters::si_unit =.false. |
| Use SI units (.true.) or use cgs units (.false.). | |
| logical | mod_global_parameters::phys_trac =.false. |
| Use TRAC for MHD or 1D HD. | |
| logical | mod_global_parameters::phys_escape_prob =.false. |
| Use escape probability for radiative cooling modification. | |
| logical | mod_global_parameters::fix_conserve_global = .true. |
| Whether to apply flux conservation at refinement boundaries. | |
| logical | mod_global_parameters::flux_adaptive_diffusion |
| double precision | mod_global_parameters::flux_adaptive_diffusion_min |
| double precision | mod_global_parameters::flux_adaptive_diffusion_scale |
| logical | mod_global_parameters::flathllc |
| logical | mod_global_parameters::flatcd |
| logical | mod_global_parameters::flatsh |
| logical | mod_global_parameters::source_split_usr |
| Use split or unsplit way to add user's source terms, default: unsplit. | |
| logical | mod_global_parameters::any_source_split =.false. |
| if any normal source term is added in split fasion | |
| logical | mod_global_parameters::dimsplit |
| logical | mod_global_parameters::limit_on_wold |
| VAC-type MUSCL-Hancock: limit the corrector slopes on w^n (typelimited='previous'), for time_stepper='twostep' with the Predictor_Corrector integrator and a Hancock predictor. | |
| logical | mod_global_parameters::use_imex_scheme |
| whether IMEX in use or not | |
| logical | mod_global_parameters::need_global_cmax =.false. |
| need global maximal wave speed | |
| logical, dimension(ndim) | mod_global_parameters::periodb |
| True for dimensions with periodic boundaries. | |
| logical, dimension(2, ndim) | mod_global_parameters::poleb |
| Indicates whether there is a pole at a boundary. | |
| logical, dimension(ndim) | mod_global_parameters::aperiodb |
| True for dimensions with aperiodic boundaries. | |
| logical | mod_global_parameters::save_physical_boundary |
| True for save physical boundary cells in dat files. | |
| logical | mod_global_parameters::ghost_copy =.false. |
| whether copy values instead of interpolation in ghost cells of finer blocks | |
| logical | mod_global_parameters::internalboundary |
| if there is an internal boundary | |
| logical | mod_global_parameters::activate_unit_arcsec |
| use arcsec as length unit of images/spectra | |
| logical | mod_global_parameters::big_image |
| big image | |
| logical, dimension(:), allocatable | mod_global_parameters::phyboundblock |
| True if a block has any physical boundary. | |
| logical, dimension(:), allocatable | mod_global_parameters::w_write |
| if true write the w variable in output | |
| logical, dimension(:), allocatable | mod_global_parameters::writelevel |
| logical, dimension(:), allocatable | mod_global_parameters::loglimit |
| logical, dimension(:), allocatable | mod_global_parameters::logflag |
| character(len= *), parameter | mod_global_parameters::undefined = 'undefined' |
| character(len=40), dimension(nfile), parameter | mod_global_parameters::output_names = ['log ', 'normal ', 'slice ', 'collapsed', 'analysis '] |
| Names of the output methods. | |
| character(len=std_len) | mod_global_parameters::convert_type |
| Which format to use when converting. | |
| character(len=std_len) | mod_global_parameters::collapse_type |
| character(len=std_len) | mod_global_parameters::usr_filename |
| User parameter file. | |
| character(len=std_len) | mod_global_parameters::base_filename |
| Base file name for simulation output, which will be followed by a number. | |
| character(len=std_len) | mod_global_parameters::restart_from_file |
| If not 'unavailable', resume from snapshot with this base file name. | |
| character(len=std_len) | mod_global_parameters::typefilelog |
| Which type of log to write: 'normal', 'special', 'regression_test'. | |
| character(len=std_len) | mod_global_parameters::typeaverage |
| character(len=std_len) | mod_global_parameters::typedimsplit |
| character(len=std_len) | mod_global_parameters::geometry_name ='default' |
| character(len=std_len) | mod_global_parameters::typepoly |
| character(len=std_len) | mod_global_parameters::filename_euv |
| Base file name for synthetic EUV emission output. | |
| character(len=std_len) | mod_global_parameters::filename_sxr |
| Base file name for synthetic SXR emission output. | |
| character(len=std_len) | mod_global_parameters::filename_whitelight |
| Base file name for synthetic white light. | |
| character(len=std_len) | mod_global_parameters::whitelight_instrument |
| white light observation instrument | |
| character(len=std_len) | mod_global_parameters::typetvd |
| Which type of TVD method to use. | |
| character(len=std_len) | mod_global_parameters::typediv |
| character(len=std_len) | mod_global_parameters::typegrad |
| character(len=std_len), dimension(:), allocatable | mod_global_parameters::par_files |
| Which par files are used as input. | |
| character(len=std_len), dimension(:), allocatable | mod_global_parameters::typeentropy |
| Which type of entropy fix to use with Riemann-type solvers. | |
| type(state), pointer | mod_global_parameters::block |
| Block pointer for using one block and its previous state. | |
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