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C $Header: /u/gcmpack/models/MITgcmUV/model/inc/CG3D.h,v 1.1 1999/03/22 15:54:02 adcroft Exp $ |
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1.1 |
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#ifdef ALLOW_NONHYDROSTATIC |
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C /==========================================================\ |
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C | CG3D.h | |
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C | o Three-dimensional conjugate gradient solver header. | |
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C |==========================================================| |
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C | The common blocks set up here are used in the elliptic | |
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C | equation inversion. They are also used as the interface | |
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C | to the rest of the model. To set the source term for the | |
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C | solver set the appropriate array below. To read the | |
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C | solution read from the appropriate array below. | |
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C \==========================================================/ |
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C-- COMMON /CG3D_R/ DEL**2 Laplacian operators |
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C aW3d - East-west operator. |
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C aS3d - North-south operator. |
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C aV3d - Vertical operator. |
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C etaNBuf - Shared buffers for accumulating con. grad vector product. |
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C alphaBuf |
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C errBuf |
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C nrmBuf |
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C cg3dNorm - A matrix normalisation factor. |
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COMMON /CG3D_R/ |
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& aW3d, |
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& aS3d, |
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& aV3d, |
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& zMC, zML, zMU, |
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1.2 |
& cg3dNorm |
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1.1 |
_RS aW3d (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RS aS3d (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RS aV3d (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RS zMC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RS zML (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RS zMU (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RL cg3dNorm |
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C-- COMMON /CG3D_WK_R/ Work array common block |
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C cg3d_q - Intermediate matrix-vector product term |
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C cg3d_r - " |
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C cg3d_s - " |
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C cg3d_x Solution vector |
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C cg3d_b Right-hand side vector |
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COMMON /CG3D_WK_R/ |
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& cg3d_b, cg3d_q, cg3d_r, cg3d_s, cg3d_x |
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_RL cg3d_q(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nR,nSx,nSy) |
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_RL cg3d_r(1-1 :sNx+1 ,1-1 :sNy+1 ,nR,nSx,nSy) |
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_RL cg3d_s(1-1 :sNx+1 ,1-1 :sNy+1 ,nR,nSx,nSy) |
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_RL cg3d_x(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nR,nSx,nSy) |
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_RL cg3d_b(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nR,nSx,nSy) |
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#endif /* ALLOW_NONHYDROSTATIC */ |
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