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C $Header$ |
C $Header$ |
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C $Name$ |
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CBOI |
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C |
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C !TITLE: MITGCM KERNEL CODE SYNOPSIS |
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C !AUTHORS: mitgcm developers ( support@mitgcm.org ) |
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C !AFFILIATION: Massachussetts Institute of Technology |
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C !DATE: |
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C !INTRODUCTION: Kernel dynamical routines |
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C This document summarises MITgcm code under the model/ subdirectory. |
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C The code under model/ ( src/ and inc/ ) contains most of |
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C the driver routines for the baseline forms of the kernel equations in the |
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C MITgcm algorithm. Numerical code for much of the baseline forms of |
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C these equations is also under the model/ directory. Other numerical code |
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C used for the kernel equations is contained in packages in the pkg/ |
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C directory tree. |
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C Code for auxilliary equations and alternate dicretizations of the kernel |
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C equations and algorithm can also be found in the pkg/ directory tree. |
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C |
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C \subsection{Getting Help and Reporting Errors and Problems} |
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C If you have questions please e-mail support@mitgcm.org. We also welcome |
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C reports of errors and inconsistencies in the code or in the accompanying |
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C documentation. Please feel free to send these |
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C to support@mitgcm.org. For further information and to review |
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C problems reported to support@mitgcm.org please visit http://mitgcm.org. |
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C |
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C \subsection{MITgcm Kernel Code Calling Sequence} |
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C \bv |
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C |
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C Invocation from WRAPPER level... |
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C : |
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C : |
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C | |
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C |-THE_MODEL_MAIN :: Primary driver for the MITgcm algorithm |
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C | :: Called from WRAPPER level numerical |
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C | :: code innvocation routine. On entry |
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C | :: to THE_MODEL_MAIN separate thread and |
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C | :: separate processes will have been established. |
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C | :: Each thread and process will have a unique ID |
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C | :: but as yet it will not be associated with a |
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C | :: specific region in decomposed discrete space. |
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C | |
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C |-INITIALISE_FIXED :: Set fixed model arrays such as topography, |
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C | | :: grid, solver matrices etc.. |
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C | | |
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C | |-INI_PARMS :: Routine to set kernel model parameters. |
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C | | :: By default kernel parameters are read from file |
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C | | :: "data" in directory in which code executes. |
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C | | |
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C | |-MON_INIT :: Initialises monitor pacakge ( see pkg/monitor ) |
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C | | |
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C | |-INI_GRID :: Control grid array (vert. and hori.) initialisation. |
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C | | | :: Grid arrays are held and described in GRID.h. |
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C | | | |
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C | | |-INI_VERTICAL_GRID :: Initialise vertical grid arrays. |
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C | | | |
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C | | |-INI_CARTESIAN_GRID :: Cartesian horiz. grid initialisation |
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C | | | :: (calculate grid from kernel parameters). |
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C | | | |
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C | | |-INI_SPHERICAL_POLAR_GRID :: Spherical polar horiz. grid |
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C | | | :: initialisation (calculate grid from |
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C | | | :: kernel parameters). |
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C | | | |
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C | | |-INI_CURVILINEAR_GRID :: General orthogonal, structured horiz. |
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C | | :: grid initialisations. ( input from raw |
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C | | :: grid files, LONC.bin, DXF.bin etc... ) |
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C | | |
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C | |-INI_DEPTHS :: Read (from "bathyFile") or set bathymetry/orgography. |
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C | | |
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C | |-INI_MASKS_ETC :: Derive horizontal and vertical cell fractions and |
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C | | :: land masking for solid-fluid boundaries. |
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C | | |
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C | |-INI_LINEAR_PHSURF :: Set ref. surface Bo_surf |
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C | | |
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C | |-INI_CORI :: Set coriolis term. zero, f-plane, beta-plane, |
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C | | :: sphere optins are coded. |
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C | | |
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C | |-PACAKGES_BOOT :: Start up the optional package environment. |
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C | | :: Runtime selection of active packages. |
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C | | |
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C | |-PACKAGES_READPARMS :: Call active package internal parameter load. |
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C | | | |
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C | | |-GMREDI_READPARMS :: GM Package. see pkg/gmredi |
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C | | |-KPP_READPARMS :: KPP Package. see pkg/kpp |
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C | | |-SHAP_FILT_READPARMS :: Shapiro filter package. see pkg/shap_filt |
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C | | |-OBCS_READPARMS :: Open bndy package. see pkg/obcs |
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C | | |-AIM_READPARMS :: Intermediate Atmos. pacakage. see pkg/aim |
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C | | |-COST_READPARMS :: Cost function package. see pkg/cost |
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C | | |-CTRL_INIT :: Control vector support package. see pkg/ctrl |
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C | | |-OPTIM_READPARMS :: Optimisation support package. see pkg/ctrl |
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C | | |-GRDCHK_READPARMS :: Gradient check package. see pkg/grdchk |
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C | | |-ECCO_READPARMS :: ECCO Support Package. see pkg/ecco |
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C | | |
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C | |-PACKAGES_CHECK |
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C | | | |
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C | | |-KPP_CHECK :: KPP Package. pkg/kpp |
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C | | |-OBCS_CHECK :: Open bndy Pacakge. pkg/obcs |
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C | | |-GMREDI_CHECK :: GM Package. pkg/gmredi |
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C | | |
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C | |-PACKAGES_INIT_FIXED |
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C | | |-OBCS_INIT_FIXED :: Open bndy Package. see pkg/obcs |
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C | | |-FLT_INIT :: Floats Package. see pkg/flt |
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C | | |
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C | |-ZONAL_FILT_INIT :: FFT filter Package. see pkg/zonal_filt |
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C | | |
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C | |-INI_CG2D :: 2d con. grad solver initialisation. |
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C | | |
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C | |-INI_CG3D :: 3d con. grad solver initialisation. |
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C | | |
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C | |-CONFIG_SUMMARY :: Provide synopsis of kernel setup. |
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C | :: Includes annotated table of kernel |
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C | :: parameter settings. |
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C | |
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C |-CTRL_UNPACK :: Control vector support package. see pkg/ctrl |
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C | |
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C |-ADTHE_MAIN_LOOP :: Derivative evaluating form of main time stepping loop |
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C ! :: Auotmatically gerenrated by TAMC/TAF. |
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C | |
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C |-CTRL_PACK :: Control vector support package. see pkg/ctrl |
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C | |
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C |-GRDCHK_MAIN :: Gradient check package. see pkg/grdchk |
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C | |
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C |-THE_MAIN_LOOP :: Main timestepping loop routine. |
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C | | |
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C | |-INITIALISE_VARIA :: Set the initial conditions for time evolving |
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C | | | :: variables |
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C | | | |
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C | | |-INI_LINEAR_PHISURF :: Set ref. surface Bo_surf |
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C | | | |
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C | | |-INI_CORI :: Set coriolis term. zero, f-plane, beta-plane, |
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C | | | :: sphere optins are coded. |
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C | | | |
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C | | |-INI_CG2D :: 2d con. grad solver initialisation. |
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C | | |-INI_CG3D :: 3d con. grad solver initialisation. |
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C | | |-INI_MIXING :: Initialise diapycnal diffusivity. |
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C | | |-INI_DYNVARS :: Initialise to zero all DYNVARS.h arrays (dynamical |
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C | | | :: fields). |
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C | | | |
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C | | |-INI_FIELDS :: Control initialising model fields to non-zero |
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C | | | |-INI_VEL :: Initialize 3D flow field. |
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C | | | |-INI_THETA :: Set model initial temperature field. |
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C | | | |-INI_SALT :: Set model initial salinity field. |
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C | | | |-INI_PSURF :: Set model initial free-surface height/pressure. |
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C | | | |
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C | | |-INI_TR1 :: Set initial tracer 1 distribution. |
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C | | | |
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C | | |-THE_CORRECTION_STEP :: Step forward to next time step. |
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C | | | | :: Here applied to move restart conditions |
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C | | | | :: (saved in mid timestep) to correct level in |
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C | | | | :: time (only used for pre-c35). |
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C | | | | |
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C | | | |-CALC_GRAD_PHI_SURF :: Return DDx and DDy of surface pressure |
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C | | | |-CORRECTION_STEP :: Pressure correction to momentum |
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C | | | |-CYCLE_TRACER :: Move tracers forward in time. |
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C | | | |-OBCS_APPLY :: Open bndy package. see pkg/obcs |
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C | | | |-SHAP_FILT_APPLY :: Shapiro filter package. see pkg/shap_filt |
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C | | | |-ZONAL_FILT_APPLY :: FFT filter package. see pkg/zonal_filt |
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C | | | |-CONVECTIVE_ADJUSTMENT :: Control static instability mixing. |
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C | | | | |-FIND_RHO :: Find adjacent densities. |
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C | | | | |-CONVECT :: Mix static instability. |
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C | | | | |-TIMEAVE_CUMULATE :: Update convection statistics. |
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C | | | | |
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C | | | |-CALC_EXACT_ETA :: Change SSH to flow divergence. |
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C | | | |
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C | | |-CONVECTIVE_ADJUSTMENT_INI :: Control static instability mixing |
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C | | | | :: Extra time history interactions. |
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C | | | | |
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C | | | |-FIND_RHO :: Find adjacent densities. |
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C | | | |-CONVECT :: Mix static instability. |
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C | | | |-TIMEAVE_CUMULATE :: Update convection statistics. |
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C | | | |
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C | | |-PACKAGES_INIT_VARIABLES :: Does initialisation of time evolving |
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C | | | | :: package data. |
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C | | | | |
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C | | | |-GMREDI_INIT :: GM package. ( see pkg/gmredi ) |
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C | | | |-KPP_INIT :: KPP package. ( see pkg/kpp ) |
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C | | | |-KPP_OPEN_DIAGS |
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C | | | |-OBCS_INIT_VARIABLES :: Open bndy. package. ( see pkg/obcs ) |
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C | | | |-AIM_INIT :: Interm. atmos package. ( see pkg/aim ) |
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C | | | |-CTRL_MAP_INI :: Control vector package.( see pkg/ctrl ) |
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C | | | |-COST_INIT :: Cost function package. ( see pkg/cost ) |
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C | | | |-ECCO_INIT :: ECCO support package. ( see pkg/ecco ) |
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C | | | |-INI_FORCING :: Set model initial forcing fields. |
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C | | | | :: Either set in-line or from file as shown. |
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C | | | |-READ_FLD_XY_RS(zonalWindFile) |
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C | | | |-READ_FLD_XY_RS(meridWindFile) |
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C | | | |-READ_FLD_XY_RS(surfQFile) |
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C | | | |-READ_FLD_XY_RS(EmPmRfile) |
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C | | | |-READ_FLD_XY_RS(thetaClimFile) |
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C | | | |-READ_FLD_XY_RS(saltClimFile) |
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C | | | |-READ_FLD_XY_RS(surfQswFile) |
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C | | | |
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C | | |-CALC_SURF_DR :: Calculate the new surface level thickness. |
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C | | |-UPDATE_SURF_DR :: Update the surface-level thickness fraction. |
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C | | |-UPDATE_CG2D :: Update 2d conjugate grad. for Free-Surf. |
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C | | |-STATE_SUMMARY :: Summarize model prognostic variables. |
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C | | |-TIMEAVE_STATVARS :: Time averaging package ( see pkg/timeave ). |
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C | | |
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C | |-WRITE_STATE :: Controlling routine for IO to dump model state. |
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C | | |-WRITE_REC_XYZ_RL :: Single file I/O |
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C | | |-WRITE_FLD_XYZ_RL :: Multi-file I/O |
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C | | |
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C | |-MONITOR :: Monitor state ( see pkg/monitor ) |
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C | |-CTRL_MAP_FORCING :: Control vector support package. ( see pkg/ctrl ) |
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C====|>| |
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C====|>| **************************** |
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C====|>| BEGIN MAIN TIMESTEPPING LOOP |
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C====|>| **************************** |
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C====|>| |
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C/\ | |-FORWARD_STEP :: Step forward a time-step ( AT LAST !!! ) |
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C/\ | | | |
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C/\ | | |-DUMMY_IN_STEPPING :: autodiff package ( pkg/autoduff ). |
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C/\ | | |-CALC_EXACT_ETA :: Change SSH to flow divergence. |
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C/\ | | |-CALC_SURF_DR :: Calculate the new surface level thickness. |
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C/\ | | |-EXF_GETFORCING :: External forcing package. ( pkg/exf ) |
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C/\ | | |-EXTERNAL_FIELDS_LOAD :: Control loading time dep. external data. |
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C/\ | | | | :: Simple interpolcation between end-points |
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C/\ | | | | :: for forcing datasets. |
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C/\ | | | | |
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C/\ | | | |-EXCH :: Sync forcing. in overlap regions. |
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C/\ | | | |
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C/\ | | |-THERMODYNAMICS :: theta, salt + tracer equations driver. |
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C/\ | | | | |
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C/\ | | | |-INTEGRATE_FOR_W :: Integrate for vertical velocity. |
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C/\ | | | |-OBCS_APPLY_W :: Open bndy. package ( see pkg/obcs ). |
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C/\ | | | |-FIND_RHO :: Calculates [rho(S,T,z)-Rhonil] of a slice |
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C/\ | | | |-GRAD_SIGMA :: Calculate isoneutral gradients |
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C/\ | | | |-CALC_IVDC :: Set Implicit Vertical Diffusivity for Convection |
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C/\ | | | | |
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C/\ | | | |-OBCS_CALC :: Open bndy. package ( see pkg/obcs ). |
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C/\ | | | |-EXTERNAL_FORCING_SURF:: Accumulates appropriately dimensioned |
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C/\ | | | | :: forcing terms. |
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C/\ | | | | |
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C/\ | | | |-GMREDI_CALC_TENSOR :: GM package ( see pkg/gmredi ). |
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C/\ | | | |-GMREDI_CALC_TENSOR_DUMMY :: GM package ( see pkg/gmredi ). |
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C/\ | | | |-KPP_CALC :: KPP package ( see pkg/kpp ). |
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C/\ | | | |-KPP_CALC_DUMMY :: KPP package ( see pkg/kpp ). |
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C/\ | | | |-AIM_DO_ATMOS_PHYSICS :: Intermed. atmos package ( see pkg/aim ). |
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C/\ | | | |-GAD_ADVECTION :: Generalised advection driver (multi-dim |
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C/\ | | | | advection case) (see pkg/gad). |
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C/\ | | | |-CALC_COMMON_FACTORS :: Calculate common data (such as volume flux) |
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C/\ | | | |-CALC_DIFFUSIVITY :: Calculate net vertical diffusivity |
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C/\ | | | | | |
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C/\ | | | | |-GMREDI_CALC_DIFF :: GM package ( see pkg/gmredi ). |
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C/\ | | | | |-KPP_CALC_DIFF :: KPP package ( see pkg/kpp ). |
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C/\ | | | | |
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C/\ | | | |-CALC_GT :: Calculate the temperature tendency terms |
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C/\ | | | | | |
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C/\ | | | | |-GAD_CALC_RHS :: Generalised advection package |
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C/\ | | | | | :: ( see pkg/gad ) |
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C/\ | | | | |-EXTERNAL_FORCING_T :: Problem specific forcing for temperature. |
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C/\ | | | | |-ADAMS_BASHFORTH2 :: Extrapolate tendencies forward in time. |
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C/\ | | | | |-FREESURF_RESCALE_G :: Re-scale Gt for free-surface height. |
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C/\ | | | | |
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C/\ | | | |-TIMESTEP_TRACER :: Step tracer field forward in time |
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C/\ | | | | |
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C/\ | | | |-CALC_GS :: Calculate the salinity tendency terms |
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C/\ | | | | | |
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C/\ | | | | |-GAD_CALC_RHS :: Generalised advection package |
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C/\ | | | | | :: ( see pkg/gad ) |
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C/\ | | | | |-EXTERNAL_FORCING_S :: Problem specific forcing for salt. |
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C/\ | | | | |-ADAMS_BASHFORTH2 :: Extrapolate tendencies forward in time. |
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C/\ | | | | |-FREESURF_RESCALE_G :: Re-scale Gs for free-surface height. |
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C/\ | | | | |
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C/\ | | | |-TIMESTEP_TRACER :: Step tracer field forward in time |
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C/\ | | | | |
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C/\ | | | |-CALC_GTR1 :: Calculate other tracer(s) tendency terms |
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C/\ | | | | | |
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C/\ | | | | |-GAD_CALC_RHS :: Generalised advection package |
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C/\ | | | | | :: ( see pkg/gad ) |
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C/\ | | | | |-EXTERNAL_FORCING_TR:: Problem specific forcing for tracer. |
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C/\ | | | | |-ADAMS_BASHFORTH2 :: Extrapolate tendencies forward in time. |
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C/\ | | | | |-FREESURF_RESCALE_G :: Re-scale Gs for free-surface height. |
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C/\ | | | | |
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C/\ | | | |-TIMESTEP_TRACER :: Step tracer field forward in time |
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C/\ | | | |-OBCS_APPLY_TS :: Open bndy. package (see pkg/obcs ). |
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C/\ | | | |-FREEZE :: Limit range of temperature. |
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C/\ | | | | |
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C/\ | | | |-IMPLDIFF :: Solve vertical implicit diffusion equation. |
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C/\ | | | |-OBCS_APPLY_TS :: Open bndy. package (see pkg/obcs ). |
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C/\ | | | | |
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C/\ | | | |-AIM_AIM2DYN_EXCHANGES :: Inetermed. atmos (see pkg/aim). |
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C/\ | | | |-EXCH :: Update overlaps |
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C/\ | | | |
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C/\ | | |-DYNAMICS :: Momentum equations driver. |
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C/\ | | | | |
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C/\ | | | |-CALC_GRAD_PHI_SURF :: Calculate the gradient of the surface |
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C/\ | | | | Potential anomaly. |
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C/\ | | | |-CALC_VISCOSITY :: Calculate net vertical viscosity |
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C/\ | | | | |-KPP_CALC_VISC :: KPP package ( see pkg/kpp ). |
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C/\ | | | | |
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C/\ | | | |-CALC_PHI_HYD :: Integrate the hydrostatic relation. |
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C/\ | | | |-MOM_FLUXFORM :: Flux form mom eqn. package ( see |
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C/\ | | | | pkg/mom_fluxform ). |
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C/\ | | | |-MOM_VECINV :: Vector invariant form mom eqn. package ( see |
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C/\ | | | | pkg/mom_vecinv ). |
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C/\ | | | |-TIMESTEP :: Step momentum fields forward in time |
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C/\ | | | |-OBCS_APPLY_UV :: Open bndy. package (see pkg/obcs ). |
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C/\ | | | | |
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C/\ | | | |-IMPLDIFF :: Solve vertical implicit diffusion equation. |
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C/\ | | | |-OBCS_APPLY_UV :: Open bndy. package (see pkg/obcs ). |
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C/\ | | | | |
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C/\ | | | |-TIMEAVE_CUMUL_1T :: Time averaging package ( see pkg/timeave ). |
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C/\ | | | |-TIMEAVE_CUMUATE :: Time averaging package ( see pkg/timeave ). |
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C/\ | | | |-DEBUG_STATS_RL :: Quick debug package ( see pkg/debug ). |
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C/\ | | | |
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C/\ | | |-CALC_GW :: vert. momentum tendency terms ( NH, QH only ). |
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C/\ | | | |
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C/\ | | |-UPDATE_SURF_DR :: Update the surface-level thickness fraction. |
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C/\ | | | |
| 312 |
|
C/\ | | |-UPDATE_CG2D :: Update 2d conjugate grad. for Free-Surf. |
| 313 |
|
C/\ | | | |
| 314 |
|
C/\ | | |-SOLVE_FOR_PRESSURE :: Find surface pressure. |
| 315 |
|
C/\ | | | |-CALC_DIV_GHAT :: Form the RHS of the surface pressure eqn. |
| 316 |
|
C/\ | | | |-CG2D :: Two-dim pre-con. conjugate-gradient. |
| 317 |
|
C/\ | | | |-CG3D :: Three-dim pre-con. conjugate-gradient solver. |
| 318 |
|
C/\ | | | |
| 319 |
|
C/\ | | |-THE_CORRECTION_STEP :: Step forward to next time step. |
| 320 |
|
C/\ | | | | |
| 321 |
|
C/\ | | | |-CALC_GRAD_PHI_SURF :: Return DDx and DDy of surface pressure |
| 322 |
|
C/\ | | | |-CORRECTION_STEP :: Pressure correction to momentum |
| 323 |
|
C/\ | | | |-CYCLE_TRACER :: Move tracers forward in time. |
| 324 |
|
C/\ | | | |-OBCS_APPLY :: Open bndy package. see pkg/obcs |
| 325 |
|
C/\ | | | |-SHAP_FILT_APPLY :: Shapiro filter package. see pkg/shap_filt |
| 326 |
|
C/\ | | | |-ZONAL_FILT_APPLY :: FFT filter package. see pkg/zonal_filt |
| 327 |
|
C/\ | | | |-CONVECTIVE_ADJUSTMENT :: Control static instability mixing. |
| 328 |
|
C/\ | | | | |-FIND_RHO :: Find adjacent densities. |
| 329 |
|
C/\ | | | | |-CONVECT :: Mix static instability. |
| 330 |
|
C/\ | | | | |-TIMEAVE_CUMULATE :: Update convection statistics. |
| 331 |
|
C/\ | | | | |
| 332 |
|
C/\ | | | |-CALC_EXACT_ETA :: Change SSH to flow divergence. |
| 333 |
|
C/\ | | | |
| 334 |
|
C/\ | | |-DO_FIELDS_BLOCKING_EXCHANGES :: Sync up overlap regions. |
| 335 |
|
C/\ | | | |-EXCH |
| 336 |
|
C/\ | | | |
| 337 |
|
C/\ | | |-FLT_MAIN :: Float package ( pkg/flt ). |
| 338 |
|
C/\ | | | |
| 339 |
|
C/\ | | |-MONITOR :: Monitor package ( pkg/monitor ). |
| 340 |
|
C/\ | | | |
| 341 |
|
C/\ | | |-DO_THE_MODEL_IO :: Standard diagnostic I/O. |
| 342 |
|
C/\ | | | |-WRITE_STATE :: Core state I/O |
| 343 |
|
C/\ | | | |-TIMEAVE_STATV_WRITE :: Time averages. see pkg/timeave |
| 344 |
|
C/\ | | | |-AIM_WRITE_DIAGS :: Intermed. atmos diags. see pkg/aim |
| 345 |
|
C/\ | | | |-GMREDI_DIAGS :: GM diags. see pkg/gmredi |
| 346 |
|
C/\ | | | |-KPP_DO_DIAGS :: KPP diags. see pkg/kpp |
| 347 |
|
C/\ | | | |
| 348 |
|
C/\ | | |-WRITE_CHECKPOINT :: Do I/O for restart files. |
| 349 |
|
C/\ | | |
| 350 |
|
C/\ | |-COST_TILE :: Cost function package. ( see pkg/cost ) |
| 351 |
|
C<===|=| |
| 352 |
|
C<===|=| ************************** |
| 353 |
|
C<===|=| END MAIN TIMESTEPPING LOOP |
| 354 |
|
C<===|=| ************************** |
| 355 |
|
C<===|=| |
| 356 |
|
C | |-COST_FINAL :: Cost function package. ( see pkg/cost ) |
| 357 |
|
C | |
| 358 |
|
C |-WRITE_CHECKPOINT :: Final state storage, for restart. |
| 359 |
|
C | |
| 360 |
|
C |-TIMER_PRINTALL :: Computational timing summary |
| 361 |
|
C | |
| 362 |
|
C |-COMM_STATS :: Summarise inter-proc and inter-thread communication |
| 363 |
|
C :: events. |
| 364 |
|
C \ev |
| 365 |
|
C |
| 366 |
|
C |
| 367 |
|
CEOI |
| 368 |
|
|
|
#include "CPP_EEOPTIONS.h" |
|
| 369 |
|
|
| 370 |
|
#include "CPP_OPTIONS.h" |
| 371 |
|
|
| 372 |
|
CBOP |
| 373 |
|
|
| 374 |
|
C !ROUTINE: THE_MODEL_MAIN |
| 375 |
|
|
| 376 |
|
C !INTERFACE: |
| 377 |
SUBROUTINE THE_MODEL_MAIN(myThid) |
SUBROUTINE THE_MODEL_MAIN(myThid) |
| 378 |
C /==========================================================\ |
IMPLICIT NONE |
| 379 |
C | SUBROUTINE THE_MODEL_MAIN | |
|
| 380 |
C | o Master controlling routine for model using the MITgcm | |
C !DESCRIPTION: \bv |
| 381 |
C | UV parallel wrapper. | |
C *==========================================================* |
| 382 |
C |==========================================================| |
C | SUBROUTINE THE_MODEL_MAIN |
| 383 |
C | THE_MODEL_MAIN is invoked by the MITgcm UV parallel | |
C | o Master controlling routine for model using the MITgcm |
| 384 |
C | wrapper with a single integer argument "myThid". This | |
C | UV parallel wrapper. |
| 385 |
C | variable identifies the thread number of an instance of | |
C *==========================================================* |
| 386 |
C | THE_MODEL_MAIN. Each instance of THE_MODEL_MAIN works | |
C | THE_MODEL_MAIN is invoked by the MITgcm UV parallel |
| 387 |
C | on a particular region of the models domain and | |
C | wrapper with a single integer argument "myThid". This |
| 388 |
C | synchronises with other instances as necessary. The | |
C | variable identifies the thread number of an instance of |
| 389 |
C | routine has to "understand" the MITgcm parallel | |
C | THE_MODEL_MAIN. Each instance of THE_MODEL_MAIN works |
| 390 |
C | environment and the numerical algorithm. Editing this | |
C | on a particular region of the models domain and |
| 391 |
C | routine is best done with some knowledge of both aspects.| |
C | synchronises with other instances as necessary. The |
| 392 |
C | Notes | |
C | routine has to "understand" the MITgcm parallel |
| 393 |
C | ===== | |
C | environment and the numerical algorithm. Editing this |
| 394 |
C | C*P* comments indicating place holders for which code is | |
C | routine is best done with some knowledge of both aspects. |
| 395 |
C | presently being developed. | |
C | Notes |
| 396 |
C \==========================================================/ |
C | ===== |
| 397 |
C |
C | C*P* comments indicating place holders for which code is |
| 398 |
C Call Tree |
C | presently being developed. |
| 399 |
C ========= |
C *==========================================================* |
| 400 |
C |
C \ev |
| 401 |
C main ( eesupp ) |
|
| 402 |
C | |
C !CALLING SEQUENCE: |
| 403 |
C . |
C THE_MODEL_MAIN() |
| 404 |
C . |
C | |
| 405 |
C . Generic environment initialisation ( see eesupp/src and |
C | |
| 406 |
C . eesupp/inc ) |
C |--INITIALISE_FIXED |
| 407 |
C . multiple threads and/or processes are created in here |
C | o Set model configuration (fixed arrays) |
| 408 |
C . |
C | Topography, hydrography, timestep, grid, etc.. |
| 409 |
C . |
C | |
| 410 |
C . |
C |--CTRL_UNPACK o Derivative mode. Unpack control vector. |
| 411 |
C | |
C | |
| 412 |
C |-THE_MODEL_MAIN - Begin specific model. One instance |
C |--ADTHE_MAIN_LOOP o Main timestepping loop for combined |
| 413 |
C | | of this codes exists for each thread |
C | prognostic and reverse mode integration. |
| 414 |
C | | and/or instance. Each instance manages |
C | |
| 415 |
C | | a specifc set of tiles. |
C |--CTRL_PACK o Derivative mode. Unpack control vector. |
| 416 |
C | | |
C | |
| 417 |
C | |--INITIALISE |
C |--GRDCHK_MAIN o Gradient check control routine. |
| 418 |
C | | o Set initial conditions and model configuration |
C | |
| 419 |
C | | Topography, hydrography, timestep, grid, etc.. |
C |--THE_MAIN_LOOP o Main timestepping loop for pure prognostic |
| 420 |
C | | |
C | integration. |
| 421 |
C ==> | | ** Time stepping loop starts here ** |
C | |
| 422 |
C | | | |
C |--WRITE_CHECKPOINT o Write retsart information. |
| 423 |
C /|\ | | |
C | |
| 424 |
C | | |--LOAD_EXTERNAL_DATA |
C |--TIMER_PRINTALL o Print out timing statistics. |
| 425 |
C /|\ | | o Load and/or set time dependent forcing fields |
C | |
| 426 |
C | | | |
C |--COMM_STATS o Print out communication statistics. |
|
C /|\ | |--DYNAMICS |
|
|
C | | | o Evaluate "forward" terms |
|
|
C /|\ | | |
|
|
C | | |--DO_THE_MODEL_IO |
|
|
C /|\ | | o Write model state |
|
|
C | | | |
|
|
C /|\ | |--SOLVE_FOR_PRESSURE |
|
|
C | | | o Find pressure field to keep flow non-divergent |
|
|
C /|\ | | |
|
|
C | | |--DO_GTERM_BLOCKING_EXCHANGES |
|
|
C /|\ | | o Update overlap regions |
|
|
C | | | |
|
|
C /|\ | |--WRITE_CHECKPOINT |
|
|
C | | | o Write restart file(s) |
|
|
C /|\ | | |
|
|
C | | | |
|
|
C |<== | | ** Time stepping loop finishes here ** |
|
|
C | | |
|
|
C | |--WRITE_STATE |
|
|
C | |--WRITE_CHECKPOINT |
|
|
C | |
|
|
C . |
|
|
C . |
|
|
C . Generic environment termination ( see eesupp/src and |
|
|
C . eesupp/inc ) |
|
|
C . |
|
|
C . |
|
| 427 |
|
|
| 428 |
|
C !USES: |
| 429 |
C == Global variables === |
C == Global variables === |
| 430 |
#include "SIZE.h" |
#include "SIZE.h" |
| 431 |
#include "EEPARAMS.h" |
#include "EEPARAMS.h" |
| 432 |
#include "PARAMS.h" |
#include "PARAMS.h" |
|
#include "CG2D.h" |
|
| 433 |
#include "DYNVARS.h" |
#include "DYNVARS.h" |
| 434 |
|
#ifdef ALLOW_NONHYDROSTATIC |
| 435 |
|
#include "CG3D.h" |
| 436 |
|
#endif |
| 437 |
|
|
| 438 |
|
#ifdef ALLOW_AUTODIFF_TAMC |
| 439 |
|
#include "tamc.h" |
| 440 |
|
#endif |
| 441 |
|
|
| 442 |
|
C !INPUT/OUTPUT PARAMETERS: |
| 443 |
C == Routine arguments == |
C == Routine arguments == |
| 444 |
C myThid - Thread number for this instance of the routine. |
C myThid - Thread number for this instance of the routine. |
| 445 |
INTEGER myThid |
INTEGER myThid |
| 446 |
|
|
| 447 |
|
C !LOCAL VARIABLES: |
| 448 |
C == Local variables == |
C == Local variables == |
| 449 |
C Note: Under the multi-threaded model myCurrentIter and |
C Note: Under the multi-threaded model myCurrentIter and |
| 450 |
C myCurrentTime are local variables passed around as routine |
C myCurrentTime are local variables passed around as routine |
| 451 |
C arguments. Although this is fiddly it saves the need to |
C arguments. Although this is fiddly it saves the need to |
| 452 |
C impose additional synchronisation points when they are |
C impose additional synchronisation points when they are |
| 453 |
C updated. |
C updated. |
|
C myCurrentIter - Iteration counter for this thread |
|
| 454 |
C myCurrentTime - Time counter for this thread |
C myCurrentTime - Time counter for this thread |
| 455 |
C I - Loop counter |
C myCurrentIter - Iteration counter for this thread |
| 456 |
INTEGER I, myCurrentIter |
INTEGER I |
| 457 |
REAL myCurrentTime |
INTEGER bi,bj |
| 458 |
|
INTEGER myCurrentIter |
| 459 |
|
_RL myCurrentTime |
| 460 |
|
CEOP |
| 461 |
|
|
| 462 |
|
C-- This timer encompasses the whole code |
| 463 |
|
CALL TIMER_START('ALL [THE_MODEL_MAIN]',myThid) |
| 464 |
|
|
| 465 |
|
C-- Set model configuration (fixed arrays) |
| 466 |
|
CALL TIMER_START('INITIALISE_FIXED [THE_MODEL_MAIN]',myThid) |
| 467 |
|
CALL INITIALISE_FIXED( myThid ) |
| 468 |
|
CALL TIMER_STOP ('INITIALISE_FIXED [THE_MODEL_MAIN]',myThid) |
| 469 |
|
|
|
C-- Set model initial conditions |
|
|
CALL INITIALISE( myThid ) |
|
| 470 |
myCurrentTime = startTime |
myCurrentTime = startTime |
| 471 |
myCurrentIter = nIter0 |
myCurrentIter = nIter0 |
| 472 |
|
|
| 473 |
C-- Begin time stepping loop |
#if ( defined (ALLOW_ADJOINT_RUN) || \ |
| 474 |
DO I=1, nTimeSteps |
defined (ALLOW_GRADIENT_CHECK) || \ |
| 475 |
|
defined (ALLOW_ECCO_OPTIMIZATION) ) |
| 476 |
C-- Load forcing/external data fields |
|
| 477 |
CALL LOAD_EXTERNAL_FIELDS( myCurrentTime, myCurrentIter, myThid ) |
_BEGIN_MASTER( mythid ) |
| 478 |
|
IF (myProcId .eq. 0) THEN |
| 479 |
C-- Step forward fields and calculate time tendency terms |
CALL CTRL_UNPACK( mycurrentiter, mycurrenttime, mythid ) |
| 480 |
CALL DYNAMICS( myCurrentTime, myCurrentIter, myThid ) |
ENDIF |
| 481 |
|
_END_MASTER( mythid ) |
| 482 |
C-- Do IO if needed. |
_BARRIER |
| 483 |
C Note: |
|
| 484 |
C ===== |
CALL COST_DEPENDENT_INIT ( mythid ) |
| 485 |
C At this point model arrays hold U,V,T,S at "time-level" N |
_BARRIER |
| 486 |
C and cg2d_x at "time-level" N-1/2 where N = I+timeLevBase-1. |
|
| 487 |
C By convention this is taken to be the model "state". |
CALL TIMER_START('ADTHE_MAIN_LOOP [ADJOINT RUN]', mythid) |
| 488 |
CALL DO_THE_MODEL_IO( myCurrentTime, myCurrentIter, myThid ) |
CALL ADTHE_MAIN_LOOP ( mythid ) |
| 489 |
|
CALL TIMER_STOP ('ADTHE_MAIN_LOOP [ADJOINT RUN]', mythid) |
| 490 |
C-- Solve elliptic equation(s). |
_BARRIER |
| 491 |
C Two-dimensional only for conventional hydrostatic or |
|
| 492 |
C three-dimensional for non-hydrostatic and/or IGW scheme. |
_BEGIN_MASTER( mythid ) |
| 493 |
CALL SOLVE_FOR_PRESSURE( myThid ) |
IF (myProcId .eq. 0) THEN |
| 494 |
|
call CTRL_PACK( mycurrentiter, mycurrenttime, mythid ) |
| 495 |
C-- Do "blocking" sends and receives for tendency "overlap" terms |
ENDIF |
| 496 |
CALL DO_GTERM_BLOCKING_EXCHANGES( myThid ) |
_END_MASTER( mythid ) |
| 497 |
|
_BARRIER |
| 498 |
myCurrentIter = myCurrentIter + 1 |
|
| 499 |
myCurrentTime = myCurrentTime + deltaTClock |
#ifdef ALLOW_GRADIENT_CHECK |
| 500 |
|
if (useGrdchk) then |
| 501 |
C-- Save state for restarts |
CALL TIMER_START('GRDCHK_MAIN [ADJOINT RUN]', mythid) |
| 502 |
C Note: |
CALL GRDCHK_MAIN( mythid ) |
| 503 |
C ===== |
CALL TIMER_STOP ('GRDCHK_MAIN [ADJOINT RUN]', mythid) |
| 504 |
C Because of the ordereing of the timestepping code and |
_BARRIER |
| 505 |
C tendency term code at end of loop model arrays hold |
end if |
| 506 |
C U,V,T,S at "time-level" N but gu, gv, gs, gt, guNM1,... |
#endif |
| 507 |
C at "time-level" N+1/2 (guNM1 at "time-level" N+1/2 is |
|
| 508 |
C gu at "time-level" N-1/2) and cg2d_x at "time-level" N+1/2. |
#elif (defined (ALLOW_TANGENTLINEAR_RUN)) |
| 509 |
C where N = I+timeLevBase-1 |
|
| 510 |
C Thus a checkpoint contains U.0000000000, GU.0000000001 and |
_BEGIN_MASTER( mythid ) |
| 511 |
C cg2d_x.0000000001 in the indexing scheme used for the model |
IF (myProcId .eq. 0) THEN |
| 512 |
C "state" files. This example is referred to as a checkpoint |
CALL CTRL_UNPACK( mycurrentiter, mycurrenttime, mythid ) |
| 513 |
C at time level 1 |
ENDIF |
| 514 |
CALL WRITE_CHECKPOINT( .FALSE., myCurrentTime, myCurrentIter, myThid ) |
_END_MASTER( mythid ) |
| 515 |
|
_BARRIER |
| 516 |
ENDDO |
|
| 517 |
|
CALL COST_DEPENDENT_INIT ( mythid ) |
| 518 |
C-- Dump for end state and final checkpoint |
_BARRIER |
| 519 |
CALL WRITE_STATE( myCurrentTime, myCurrentIter, myThid ) |
|
| 520 |
CALL WRITE_CHECKPOINT( .TRUE., myCurrentTime, myCurrentIter, myThid ) |
CALL TIMER_START('G_THE_MAIN_LOOP [FTL RUN]', mythid) |
| 521 |
|
CALL G_THE_MAIN_LOOP ( myCurrentTime, myCurrentIter, myThid ) |
| 522 |
|
CALL TIMER_STOP ('G_THE_MAIN_LOOP [FTL RUN]', mythid) |
| 523 |
|
_BARRIER |
| 524 |
|
|
| 525 |
|
_BEGIN_MASTER( mythid ) |
| 526 |
|
IF (myProcId .eq. 0) THEN |
| 527 |
|
call CTRL_PACK( mycurrentiter, mycurrenttime, mythid ) |
| 528 |
|
ENDIF |
| 529 |
|
_END_MASTER( mythid ) |
| 530 |
|
_BARRIER |
| 531 |
|
|
| 532 |
|
#else /* ALLOW_ADJOINT_RUN undef */ |
| 533 |
|
|
| 534 |
|
C-- Call time stepping loop of full model |
| 535 |
|
CALL TIMER_START('THE_MAIN_LOOP [THE_MODEL_MAIN]',myThid) |
| 536 |
|
CALL THE_MAIN_LOOP( myCurrentTime, myCurrentIter, myThid ) |
| 537 |
|
CALL TIMER_STOP ('THE_MAIN_LOOP [THE_MODEL_MAIN]',myThid) |
| 538 |
|
|
| 539 |
|
#endif /* ALLOW_ADJOINT_RUN */ |
| 540 |
|
|
| 541 |
|
C-- Final checkpoint (incase the in-loop checkpoint was missed) |
| 542 |
|
CALL TIMER_START('WRITE_CHECKPOINT [THE_MODEL_MAIN]',myThid) |
| 543 |
|
CALL WRITE_CHECKPOINT( |
| 544 |
|
& .TRUE., myCurrentTime, myCurrentIter, myThid ) |
| 545 |
|
CALL TIMER_STOP ('WRITE_CHECKPOINT [THE_MODEL_MAIN]',myThid) |
| 546 |
|
|
| 547 |
|
CALL TIMER_STOP ('ALL [THE_MODEL_MAIN]',myThid) |
| 548 |
|
|
| 549 |
|
C-- Write timer statistics |
| 550 |
|
IF ( myThid .EQ. 1 ) THEN |
| 551 |
|
CALL TIMER_PRINTALL( myThid ) |
| 552 |
|
CALL COMM_STATS |
| 553 |
|
ENDIF |
| 554 |
|
|
| 555 |
RETURN |
RETURN |
| 556 |
END |
END |
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