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jmc |
1.3 |
C $Header: /u/gcmpack/MITgcm/model/src/cg2d_nsa.F,v 1.2 2009/04/28 18:01:14 jmc Exp $ |
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heimbach |
1.1 |
C $Name: $ |
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#include "CPP_OPTIONS.h" |
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#ifdef ALLOW_USE_MPI |
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C HACK to avoid global_max |
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# define ALLOW_CONST_RHSMAX |
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jmc |
1.3 |
#endif |
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heimbach |
1.1 |
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CML THIS DOES NOT WORK +++++ |
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#undef ALLOW_LOOP_DIRECTIVE |
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CBOP |
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C !ROUTINE: CG2D_NSA |
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C !INTERFACE: |
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jmc |
1.3 |
SUBROUTINE CG2D_NSA( |
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heimbach |
1.1 |
I cg2d_b, |
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U cg2d_x, |
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O firstResidual, |
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O lastResidual, |
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U numIters, |
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I myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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jmc |
1.3 |
C | SUBROUTINE CG2D_NSA |
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C | o Two-dimensional grid problem conjugate-gradient |
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C | inverter (with preconditioner). |
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heimbach |
1.1 |
C | o This version is used only in the case when the matrix |
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jmc |
1.3 |
C | operator is not "self-adjoint" (NSA). Any remaining |
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heimbach |
1.1 |
C | residuals will immediately reported to the department |
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C | of homeland security. |
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C *==========================================================* |
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jmc |
1.3 |
C | Con. grad is an iterative procedure for solving Ax = b. |
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C | It requires the A be symmetric. |
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C | This implementation assumes A is a five-diagonal |
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C | matrix of the form that arises in the discrete |
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C | representation of the del^2 operator in a |
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C | two-dimensional space. |
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C | Notes: |
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C | ====== |
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C | This implementation can support shared-memory |
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C | multi-threaded execution. In order to do this COMMON |
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C | blocks are used for many of the arrays - even ones that |
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C | are only used for intermedaite results. This design is |
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C | OK if you want to all the threads to collaborate on |
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C | solving the same problem. On the other hand if you want |
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C | the threads to solve several different problems |
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C | concurrently this implementation will not work. |
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heimbach |
1.1 |
C *==========================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C === Global data === |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "CG2D.h" |
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jmc |
1.3 |
c#include "GRID.h" |
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c#include "SURFACE.h" |
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heimbach |
1.1 |
#ifdef ALLOW_AUTODIFF_TAMC |
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# include "tamc.h" |
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# include "tamc_keys.h" |
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#endif |
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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jmc |
1.3 |
C cg2d_b :: The source term or "right hand side" |
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C cg2d_x :: The solution |
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C firstResidual :: the initial residual before any iterations |
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C lastResidual :: the actual residual reached |
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C numIters :: Entry: the maximum number of iterations allowed |
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C Exit: the actual number of iterations used |
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C myThid :: Thread on which I am working. |
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heimbach |
1.1 |
_RL cg2d_b(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL cg2d_x(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL firstResidual |
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_RL lastResidual |
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INTEGER numIters |
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INTEGER myThid |
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#ifdef ALLOW_CG2D_NSA |
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C !LOCAL VARIABLES: |
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C === Local variables ==== |
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jmc |
1.3 |
C actualIts :: Number of iterations taken |
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C actualResidual :: residual |
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C bi, bj :: Block index in X and Y. |
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C eta_qrN :: Used in computing search directions |
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heimbach |
1.1 |
C eta_qrNM1 suffix N and NM1 denote current and |
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C cgBeta previous iterations respectively. |
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jmc |
1.3 |
C recip_eta_qrNM1 :: reciprocal of eta_qrNM1 |
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C alpha |
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C alpha_aux :: to avoid the statement: alpha = 1./alpha (for TAMC/TAF) |
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C sumRHS :: Sum of right-hand-side. Sometimes this is a |
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heimbach |
1.1 |
C useful debuggin/trouble shooting diagnostic. |
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C For neumann problems sumRHS needs to be ~0. |
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C or they converge at a non-zero residual. |
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jmc |
1.3 |
C err :: Measure of residual of Ax - b, usually the norm. |
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C err_sq :: square of err (for TAMC/TAF) |
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C I, J, it2d :: Loop counters ( it2d counts CG iterations ) |
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heimbach |
1.1 |
INTEGER actualIts |
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_RL actualResidual |
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jmc |
1.3 |
INTEGER bi, bj |
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heimbach |
1.1 |
INTEGER I, J, it2d |
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_RL err |
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_RL err_sq |
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_RL eta_qrN |
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_RL eta_qrNM1 |
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_RL recip_eta_qrNM1 |
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_RL cgBeta |
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_RL alpha |
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_RL alpha_aux |
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_RL sumRHS |
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_RL rhsMax, rhsMaxGlobal |
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_RL rhsNorm |
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_RL cg2dTolerance_sq |
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CEOP |
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#ifdef ALLOW_AUTODIFF_TAMC |
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IF ( numIters .GT. numItersMax ) THEN |
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jmc |
1.3 |
WRITE(standardMessageUnit,'(A,I10)') |
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heimbach |
1.1 |
& 'CG2D_NSA: numIters > numItersMax = ', numItersMax |
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STOP 'NON-NORMAL in CG2D_NSA' |
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ENDIF |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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CcnhDebugStarts |
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C CHARACTER*(MAX_LEN_FNAM) suff |
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CcnhDebugEnds |
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#ifdef ALLOW_AUTODIFF_TAMC |
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act1 = myThid - 1 |
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max1 = nTx*nTy |
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act2 = ikey_dynamics - 1 |
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ikey = (act1 + 1) + act2*max1 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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C-- Initialise inverter |
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eta_qrNM1 = 1. _d 0 |
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recip_eta_qrNM1 = 1./eta_qrNM1 |
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CcnhDebugStarts |
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jmc |
1.2 |
C _EXCH_XY_RL( cg2d_b, myThid ) |
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heimbach |
1.1 |
C CALL PLOT_FIELD_XYRL( cg2d_b, 'CG2D.0 CG2D_B' , 1, myThid ) |
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C suff = 'unnormalised' |
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C CALL WRITE_FLD_XY_RL ( 'cg2d_b.',suff, cg2d_b, 1, myThid) |
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C STOP |
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CcnhDebugEnds |
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C-- Normalise RHS |
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#ifdef ALLOW_AUTODIFF_TAMC |
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jmc |
1.3 |
CADJ STORE cg2d_b = comlev1_cg2d, key = ikey, byte = isbyte |
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heimbach |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
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rhsMax = 0. _d 0 |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO J=1,sNy |
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DO I=1,sNx |
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cg2d_b(I,J,bi,bj) = cg2d_b(I,J,bi,bj)*cg2dNorm |
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rhsMax = MAX(ABS(cg2d_b(I,J,bi,bj)),rhsMax) |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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IF (cg2dNormaliseRHS) THEN |
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C - Normalise RHS : |
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#ifdef LETS_MAKE_JAM |
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jmc |
1.2 |
C _GLOBAL_MAX_RL( rhsMax, myThid ) |
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heimbach |
1.1 |
rhsMaxGlobal=1. |
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#else |
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#ifdef ALLOW_CONST_RHSMAX |
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rhsMaxGlobal=1. |
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#else |
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rhsMaxGlobal=rhsMax |
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jmc |
1.2 |
_GLOBAL_MAX_RL( rhsMaxGlobal, myThid ) |
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heimbach |
1.1 |
#endif /* ALLOW_CONST_RHSMAX */ |
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#endif |
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#ifdef ALLOW_AUTODIFF_TAMC |
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jmc |
1.3 |
CADJ STORE rhsNorm = comlev1_cg2d, key = ikey, byte = isbyte |
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heimbach |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
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IF ( rhsMaxGlobal .NE. 0. ) THEN |
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rhsNorm = 1. _d 0 / rhsMaxGlobal |
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ELSE |
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rhsNorm = 1. _d 0 |
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ENDIF |
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#ifdef ALLOW_AUTODIFF_TAMC |
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jmc |
1.3 |
CADJ STORE cg2d_b = comlev1_cg2d, key = ikey, byte = isbyte |
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CADJ STORE cg2d_x = comlev1_cg2d, key = ikey, byte = isbyte |
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heimbach |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO J=1,sNy |
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DO I=1,sNx |
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cg2d_b(I,J,bi,bj) = cg2d_b(I,J,bi,bj)*rhsNorm |
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cg2d_x(I,J,bi,bj) = cg2d_x(I,J,bi,bj)*rhsNorm |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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C- end Normalise RHS |
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ENDIF |
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C-- Update overlaps |
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jmc |
1.3 |
c CALL EXCH_XY_RL( cg2d_b, myThid ) |
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CALL EXCH_XY_RL( cg2d_x, myThid ) |
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heimbach |
1.1 |
CcnhDebugStarts |
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C CALL PLOT_FIELD_XYRL( cg2d_b, 'CG2D.1 CG2D_B' , 1, myThid ) |
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C suff = 'normalised' |
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C CALL WRITE_FLD_XY_RL ( 'cg2d_b.',suff, cg2d_b, 1, myThid) |
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CcnhDebugEnds |
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C-- Initial residual calculation |
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err = 0. _d 0 |
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err_sq = 0. _d 0 |
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sumRHS = 0. _d 0 |
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#ifdef ALLOW_AUTODIFF_TAMC |
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jmc |
1.3 |
CADJ STORE cg2d_b = comlev1_cg2d, key = ikey, byte = isbyte |
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CADJ STORE cg2d_x = comlev1_cg2d, key = ikey, byte = isbyte |
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heimbach |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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jmc |
1.3 |
DO J=1-1,sNy+1 |
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DO I=1-1,sNx+1 |
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cg2d_s(I,J,bi,bj) = 0. |
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ENDDO |
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ENDDO |
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heimbach |
1.1 |
DO J=1,sNy |
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DO I=1,sNx |
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cg2d_r(I,J,bi,bj) = cg2d_b(I,J,bi,bj) - |
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& (aW2d(I ,J ,bi,bj)*cg2d_x(I-1,J ,bi,bj) |
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& +aW2d(I+1,J ,bi,bj)*cg2d_x(I+1,J ,bi,bj) |
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& +aS2d(I ,J ,bi,bj)*cg2d_x(I ,J-1,bi,bj) |
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& +aS2d(I ,J+1,bi,bj)*cg2d_x(I ,J+1,bi,bj) |
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jmc |
1.3 |
& +aC2d(I ,J ,bi,bj)*cg2d_x(I ,J ,bi,bj) |
237 |
heimbach |
1.1 |
& ) |
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jmc |
1.3 |
c & -aW2d(I ,J ,bi,bj)*cg2d_x(I ,J ,bi,bj) |
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c & -aW2d(I+1,J ,bi,bj)*cg2d_x(I ,J ,bi,bj) |
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c & -aS2d(I ,J ,bi,bj)*cg2d_x(I ,J ,bi,bj) |
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c & -aS2d(I ,J+1,bi,bj)*cg2d_x(I ,J ,bi,bj) |
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c & -freeSurfFac*_rA(i,j,bi,bj)*recip_Bo(i,j,bi,bj)* |
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c & cg2d_x(I ,J ,bi,bj)/deltaTMom/deltaTfreesurf*cg2dNorm |
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cML & cg2d_x(I ,J ,bi,bj)/deltaTMom/deltaTMom*cg2dNorm |
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c & ) |
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err_sq = err_sq + |
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heimbach |
1.1 |
& cg2d_r(I,J,bi,bj)*cg2d_r(I,J,bi,bj) |
248 |
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sumRHS = sumRHS + |
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& cg2d_b(I,J,bi,bj) |
250 |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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255 |
jmc |
1.3 |
c CALL EXCH_S3D_RL( cg2d_r, 1, myThid ) |
256 |
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CALL EXCH_XY_RL ( cg2d_r, myThid ) |
257 |
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_GLOBAL_SUM_RL( sumRHS, myThid ) |
258 |
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_GLOBAL_SUM_RL( err_sq, myThid ) |
259 |
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IF ( err_sq .NE. 0. ) THEN |
260 |
heimbach |
1.1 |
err = SQRT(err_sq) |
261 |
jmc |
1.3 |
ELSE |
262 |
heimbach |
1.1 |
err = 0. |
263 |
jmc |
1.3 |
ENDIF |
264 |
heimbach |
1.1 |
actualIts = 0 |
265 |
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actualResidual = err |
266 |
jmc |
1.3 |
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267 |
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IF ( debugLevel .GE. debLevZero ) THEN |
268 |
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_BEGIN_MASTER( myThid ) |
269 |
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WRITE(standardmessageunit,'(A,1P2E22.14)') |
270 |
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& ' cg2d: Sum(rhs),rhsMax = ', sumRHS,rhsMaxGlobal |
271 |
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_END_MASTER( myThid ) |
272 |
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ENDIF |
273 |
heimbach |
1.1 |
C _BARRIER |
274 |
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c _BEGIN_MASTER( myThid ) |
275 |
jmc |
1.3 |
c WRITE(*,'(A,I6,1PE30.14)') ' CG2D_NSA iters, err = ', |
276 |
heimbach |
1.1 |
c & actualIts, actualResidual |
277 |
jmc |
1.3 |
c _END_MASTER( myThid ) |
278 |
heimbach |
1.1 |
firstResidual=actualResidual |
279 |
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cg2dTolerance_sq = cg2dTolerance**2 |
280 |
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281 |
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C >>>>>>>>>>>>>>> BEGIN SOLVER <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
282 |
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Cml begin main solver loop |
283 |
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#if ((defined ALLOW_AUTODIFF_TAMC) && (defined ALLOW_LOOP_DIRECTIVE)) |
284 |
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CADJ LOOP = iteration, cg2d_x = comlev_cg2d_iter |
285 |
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#endif /* ALLOW_AUTODIFF_TAMC and ALLOW_LOOP_DIRECTIVE */ |
286 |
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DO it2d=1, numIters |
287 |
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#ifdef ALLOW_LOOP_DIRECTIVE |
288 |
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CML it2d = 0 |
289 |
jmc |
1.3 |
CML DO WHILE ( err_sq .GT. cg2dTolerance_sq .and. it2d .LT. numIters ) |
290 |
heimbach |
1.1 |
CML it2d = it2d+1 |
291 |
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#endif /* ALLOW_LOOP_DIRECTIVE */ |
292 |
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293 |
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#ifdef ALLOW_AUTODIFF_TAMC |
294 |
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icg2dkey = (ikey-1)*numItersMax + it2d |
295 |
jmc |
1.3 |
CMLCADJ STORE err = comlev1_cg2d_iter, key = icg2dkey, byte = isbyte |
296 |
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CADJ STORE err_sq = comlev1_cg2d_iter, key = icg2dkey, byte = isbyte |
297 |
heimbach |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
298 |
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CML IF ( err .LT. cg2dTolerance ) THEN |
299 |
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IF ( err_sq .LT. cg2dTolerance_sq ) THEN |
300 |
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Cml DO NOTHING |
301 |
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ELSE |
302 |
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303 |
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CcnhDebugStarts |
304 |
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C WRITE(*,*) ' CG2D_NSA: Iteration ',it2d-1,' residual = ', |
305 |
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C & actualResidual |
306 |
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CcnhDebugEnds |
307 |
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C-- Solve preconditioning equation and update |
308 |
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C-- conjugate direction vector "s". |
309 |
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eta_qrN = 0. _d 0 |
310 |
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#ifdef ALLOW_AUTODIFF_TAMC |
311 |
jmc |
1.3 |
CADJ STORE cg2d_r = comlev1_cg2d_iter, key = icg2dkey, byte = isbyte |
312 |
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CADJ STORE cg2d_s = comlev1_cg2d_iter, key = icg2dkey, byte = isbyte |
313 |
heimbach |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
314 |
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DO bj=myByLo(myThid),myByHi(myThid) |
315 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
316 |
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DO J=1,sNy |
317 |
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DO I=1,sNx |
318 |
jmc |
1.3 |
cg2d_z(I,J,bi,bj) = |
319 |
heimbach |
1.1 |
& pC(I ,J ,bi,bj)*cg2d_r(I ,J ,bi,bj) |
320 |
|
|
& +pW(I ,J ,bi,bj)*cg2d_r(I-1,J ,bi,bj) |
321 |
|
|
& +pW(I+1,J ,bi,bj)*cg2d_r(I+1,J ,bi,bj) |
322 |
|
|
& +pS(I ,J ,bi,bj)*cg2d_r(I ,J-1,bi,bj) |
323 |
|
|
& +pS(I ,J+1,bi,bj)*cg2d_r(I ,J+1,bi,bj) |
324 |
|
|
CcnhDebugStarts |
325 |
|
|
C cg2d_z(I,J,bi,bj) = cg2d_r(I ,J ,bi,bj) |
326 |
|
|
CcnhDebugEnds |
327 |
|
|
eta_qrN = eta_qrN |
328 |
|
|
& +cg2d_z(I,J,bi,bj)*cg2d_r(I,J,bi,bj) |
329 |
|
|
ENDDO |
330 |
|
|
ENDDO |
331 |
|
|
ENDDO |
332 |
|
|
ENDDO |
333 |
|
|
|
334 |
jmc |
1.2 |
_GLOBAL_SUM_RL(eta_qrN, myThid) |
335 |
heimbach |
1.1 |
CcnhDebugStarts |
336 |
|
|
C WRITE(*,*) ' CG2D_NSA: Iteration ',it2d-1,' eta_qrN = ',eta_qrN |
337 |
|
|
CcnhDebugEnds |
338 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
339 |
jmc |
1.3 |
CMLCADJ STORE eta_qrNM1 = comlev1_cg2d_iter, key = icg2dkey, byte = isbyte |
340 |
|
|
CADJ STORE recip_eta_qrNM1 = comlev1_cg2d_iter, key = icg2dkey, byte = isbyte |
341 |
heimbach |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
342 |
|
|
CML cgBeta = eta_qrN/eta_qrNM1 |
343 |
|
|
cgBeta = eta_qrN*recip_eta_qrNM1 |
344 |
|
|
CcnhDebugStarts |
345 |
|
|
C WRITE(*,*) ' CG2D_NSA: Iteration ',it2d-1,' beta = ',cgBeta |
346 |
|
|
CcnhDebugEnds |
347 |
jmc |
1.3 |
Cml store normalisation factor for the next interation |
348 |
heimbach |
1.1 |
Cml (in case there is one). |
349 |
|
|
CML store the inverse of the normalization factor for higher precision |
350 |
|
|
CML eta_qrNM1 = eta_qrN |
351 |
|
|
recip_eta_qrNM1 = 1./eta_qrN |
352 |
|
|
|
353 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
354 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
355 |
|
|
DO J=1,sNy |
356 |
|
|
DO I=1,sNx |
357 |
|
|
cg2d_s(I,J,bi,bj) = cg2d_z(I,J,bi,bj) |
358 |
|
|
& + cgBeta*cg2d_s(I,J,bi,bj) |
359 |
|
|
ENDDO |
360 |
|
|
ENDDO |
361 |
|
|
ENDDO |
362 |
|
|
ENDDO |
363 |
|
|
|
364 |
|
|
C-- Do exchanges that require messages i.e. between |
365 |
|
|
C-- processes. |
366 |
jmc |
1.3 |
c CALL EXCH_S3D_RL( cg2d_s, 1, myThid ) |
367 |
|
|
CALL EXCH_XY_RL ( cg2d_s, myThid ) |
368 |
heimbach |
1.1 |
|
369 |
|
|
C== Evaluate laplace operator on conjugate gradient vector |
370 |
|
|
C== q = A.s |
371 |
|
|
alpha = 0. _d 0 |
372 |
|
|
alpha_aux = 0. _d 0 |
373 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
374 |
|
|
#ifndef ALLOW_LOOP_DIRECTIVE |
375 |
jmc |
1.3 |
CADJ STORE cg2d_s = comlev1_cg2d_iter, key = icg2dkey, byte = isbyte |
376 |
heimbach |
1.1 |
#endif /* not ALLOW_LOOP_DIRECTIVE */ |
377 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
378 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
379 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
380 |
|
|
DO J=1,sNy |
381 |
|
|
DO I=1,sNx |
382 |
jmc |
1.3 |
cg2d_q(I,J,bi,bj) = |
383 |
heimbach |
1.1 |
& aW2d(I ,J ,bi,bj)*cg2d_s(I-1,J ,bi,bj) |
384 |
|
|
& +aW2d(I+1,J ,bi,bj)*cg2d_s(I+1,J ,bi,bj) |
385 |
|
|
& +aS2d(I ,J ,bi,bj)*cg2d_s(I ,J-1,bi,bj) |
386 |
|
|
& +aS2d(I ,J+1,bi,bj)*cg2d_s(I ,J+1,bi,bj) |
387 |
jmc |
1.3 |
& +aC2d(I ,J ,bi,bj)*cg2d_s(I ,J ,bi,bj) |
388 |
|
|
c & -aW2d(I ,J ,bi,bj)*cg2d_s(I ,J ,bi,bj) |
389 |
|
|
c & -aW2d(I+1,J ,bi,bj)*cg2d_s(I ,J ,bi,bj) |
390 |
|
|
c & -aS2d(I ,J ,bi,bj)*cg2d_s(I ,J ,bi,bj) |
391 |
|
|
c & -aS2d(I ,J+1,bi,bj)*cg2d_s(I ,J ,bi,bj) |
392 |
|
|
c & -freeSurfFac*_rA(i,j,bi,bj)*recip_Bo(i,j,bi,bj)* |
393 |
|
|
c & cg2d_s(I ,J ,bi,bj)/deltaTMom/deltaTfreesurf*cg2dNorm |
394 |
|
|
cML & cg2d_s(I ,J ,bi,bj)/deltaTMom/deltaTMom*cg2dNorm |
395 |
|
|
alpha_aux = alpha_aux+cg2d_s(I,J,bi,bj)*cg2d_q(I,J,bi,bj) |
396 |
heimbach |
1.1 |
ENDDO |
397 |
|
|
ENDDO |
398 |
|
|
ENDDO |
399 |
|
|
ENDDO |
400 |
jmc |
1.2 |
_GLOBAL_SUM_RL(alpha_aux,myThid) |
401 |
heimbach |
1.1 |
CcnhDebugStarts |
402 |
|
|
C WRITE(*,*) ' CG2D_NSA: Iteration ',it2d-1,' SUM(s*q)= ',alpha_aux |
403 |
|
|
CcnhDebugEnds |
404 |
|
|
alpha = eta_qrN/alpha_aux |
405 |
|
|
CcnhDebugStarts |
406 |
|
|
C WRITE(*,*) ' CG2D_NSA: Iteration ',it2d-1,' alpha= ',alpha |
407 |
|
|
CcnhDebugEnds |
408 |
jmc |
1.3 |
|
409 |
heimbach |
1.1 |
C== Update solution and residual vectors |
410 |
|
|
C Now compute "interior" points. |
411 |
|
|
err = 0. _d 0 |
412 |
|
|
err_sq = 0. _d 0 |
413 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
414 |
|
|
#ifndef ALLOW_LOOP_DIRECTIVE |
415 |
jmc |
1.3 |
CADJ STORE cg2d_r = comlev1_cg2d_iter, key = icg2dkey, byte = isbyte |
416 |
heimbach |
1.1 |
#endif /* ALLOW_LOOP_DIRECTIVE */ |
417 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
418 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
419 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
420 |
|
|
DO J=1,sNy |
421 |
|
|
DO I=1,sNx |
422 |
|
|
cg2d_x(I,J,bi,bj)=cg2d_x(I,J,bi,bj)+alpha*cg2d_s(I,J,bi,bj) |
423 |
|
|
cg2d_r(I,J,bi,bj)=cg2d_r(I,J,bi,bj)-alpha*cg2d_q(I,J,bi,bj) |
424 |
|
|
err_sq = err_sq+cg2d_r(I,J,bi,bj)*cg2d_r(I,J,bi,bj) |
425 |
|
|
ENDDO |
426 |
|
|
ENDDO |
427 |
|
|
ENDDO |
428 |
|
|
ENDDO |
429 |
|
|
|
430 |
jmc |
1.2 |
_GLOBAL_SUM_RL( err_sq , myThid ) |
431 |
heimbach |
1.1 |
if ( err_sq .ne. 0. ) then |
432 |
|
|
err = SQRT(err_sq) |
433 |
|
|
else |
434 |
|
|
err = 0. |
435 |
|
|
end if |
436 |
|
|
actualIts = it2d |
437 |
|
|
actualResidual = err |
438 |
|
|
|
439 |
jmc |
1.3 |
c CALL EXCH_S3D_RL( cg2d_r, 1, myThid ) |
440 |
|
|
CALL EXCH_XY_RL ( cg2d_r, myThid ) |
441 |
heimbach |
1.1 |
|
442 |
|
|
Cml end of IF ( err .LT. cg2dTolerance ) THEN; ELSE |
443 |
|
|
ENDIF |
444 |
|
|
Cml end main solver loop |
445 |
|
|
ENDDO |
446 |
|
|
|
447 |
|
|
IF (cg2dNormaliseRHS) THEN |
448 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
449 |
jmc |
1.3 |
CADJ STORE rhsNorm = comlev1_cg2d, key = ikey, byte = isbyte |
450 |
|
|
CADJ STORE cg2d_x = comlev1_cg2d, key = ikey, byte = isbyte |
451 |
heimbach |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
452 |
|
|
C-- Un-normalise the answer |
453 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
454 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
455 |
|
|
DO J=1,sNy |
456 |
|
|
DO I=1,sNx |
457 |
|
|
cg2d_x(I ,J ,bi,bj) = cg2d_x(I ,J ,bi,bj)/rhsNorm |
458 |
|
|
ENDDO |
459 |
|
|
ENDDO |
460 |
|
|
ENDDO |
461 |
|
|
ENDDO |
462 |
|
|
ENDIF |
463 |
|
|
|
464 |
|
|
C The following exchange was moved up to solve_for_pressure |
465 |
|
|
C for compatibility with TAMC. |
466 |
jmc |
1.2 |
C _EXCH_XY_RL(cg2d_x, myThid ) |
467 |
heimbach |
1.1 |
c _BEGIN_MASTER( myThid ) |
468 |
jmc |
1.3 |
c WRITE(*,'(A,I6,1PE30.14)') ' CG2D_NSA iters, err = ', |
469 |
heimbach |
1.1 |
c & actualIts, actualResidual |
470 |
|
|
c _END_MASTER( ) |
471 |
|
|
|
472 |
|
|
C-- Return parameters to caller |
473 |
|
|
lastResidual=actualResidual |
474 |
|
|
numIters=actualIts |
475 |
|
|
|
476 |
|
|
#endif /* ALLOW_CG2D_NSA */ |
477 |
|
|
RETURN |
478 |
|
|
END |
479 |
|
|
|
480 |
|
|
# if ((defined ALLOW_AUTODIFF_TAMC) && (defined ALLOW_LOOP_DIRECTIVE)) |
481 |
|
|
C |
482 |
|
|
C These routines are routinely part of the TAMC/TAF library that is |
483 |
|
|
C not included in the MITcgm, therefore they are mimicked here. |
484 |
|
|
C |
485 |
|
|
subroutine adstore(chardum,int1,idow,int2,int3,icount) |
486 |
|
|
|
487 |
|
|
implicit none |
488 |
|
|
|
489 |
|
|
#include "SIZE.h" |
490 |
|
|
#include "tamc.h" |
491 |
|
|
|
492 |
|
|
character*(*) chardum |
493 |
|
|
integer int1, int2, int3, idow, icount |
494 |
|
|
|
495 |
jmc |
1.3 |
C the length of this vector must be greater or equal |
496 |
heimbach |
1.1 |
C twice the number of timesteps |
497 |
|
|
integer nidow |
498 |
|
|
#ifdef ALLOW_TAMC_CHECKPOINTING |
499 |
|
|
parameter ( nidow = 2*nchklev_1*nchklev_2*nchklev_3 ) |
500 |
|
|
#else |
501 |
|
|
parameter ( nidow = 1000000 ) |
502 |
|
|
#endif /* ALLOW_TAMC_CHECKPOINTING */ |
503 |
|
|
integer istoreidow(nidow) |
504 |
|
|
common /istorecommon/ istoreidow |
505 |
|
|
|
506 |
jmc |
1.3 |
print *, 'adstore: ', chardum, int1, idow, int2, int3, icount |
507 |
heimbach |
1.1 |
|
508 |
|
|
if ( icount .gt. nidow ) then |
509 |
|
|
print *, 'adstore: error: icount > nidow = ', nidow |
510 |
|
|
stop 'ABNORMAL STOP in adstore' |
511 |
|
|
endif |
512 |
|
|
|
513 |
|
|
istoreidow(icount) = idow |
514 |
|
|
|
515 |
|
|
return |
516 |
|
|
end |
517 |
|
|
|
518 |
|
|
subroutine adresto(chardum,int1,idow,int2,int3,icount) |
519 |
|
|
|
520 |
|
|
implicit none |
521 |
|
|
|
522 |
|
|
#include "SIZE.h" |
523 |
|
|
#include "tamc.h" |
524 |
|
|
|
525 |
|
|
character*(*) chardum |
526 |
|
|
integer int1, int2, int3, idow, icount |
527 |
|
|
|
528 |
|
|
|
529 |
jmc |
1.3 |
C the length of this vector must be greater or equal |
530 |
heimbach |
1.1 |
C twice the number of timesteps |
531 |
|
|
integer nidow |
532 |
|
|
#ifdef ALLOW_TAMC_CHECKPOINTING |
533 |
|
|
parameter ( nidow = 2*nchklev_1*nchklev_2*nchklev_3 ) |
534 |
|
|
#else |
535 |
|
|
parameter ( nidow = 1000000 ) |
536 |
|
|
#endif /* ALLOW_TAMC_CHECKPOINTING */ |
537 |
|
|
integer istoreidow(nidow) |
538 |
|
|
common /istorecommon/ istoreidow |
539 |
|
|
|
540 |
jmc |
1.3 |
print *, 'adresto: ', chardum, int1, idow, int2, int3, icount |
541 |
heimbach |
1.1 |
|
542 |
|
|
if ( icount .gt. nidow ) then |
543 |
|
|
print *, 'adstore: error: icount > nidow = ', nidow |
544 |
|
|
stop 'ABNORMAL STOP in adstore' |
545 |
|
|
endif |
546 |
|
|
|
547 |
|
|
idow = istoreidow(icount) |
548 |
|
|
|
549 |
|
|
return |
550 |
|
|
end |
551 |
|
|
# endif /* ALLOW_AUTODIFF_TAMC and ALLOW_LOOP_DIRECTIVE */ |
552 |
|
|
|