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C $Header: /u/gcmpack/MITgcm/pkg/exch2/W2_EXCH2_PARAMS.h,v 1.12 2011/07/09 22:09:07 jmc Exp $ |
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C $Name: $ |
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CBOP |
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C !ROUTINE: W2_EXCH2_PARAMS.h |
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C !INTERFACE: |
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C #include W2_EXCH2_PARAMS.h |
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C !DESCRIPTION: |
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C *==========================================================* |
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C | W2_EXCH2_PARAMS.h |
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C | o Header file defining WRAPPER2-EXCH2 topology parameters |
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C *==========================================================* |
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CEOP |
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C-- COMMON /W2_EXCH2_PARM_I/ Integer valued parameters used by W2-EXCH2 |
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C preDefTopol :: pre-defined Topology selector: |
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C :: = 0 : topology defined from processing "data.exch2"; |
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C :: = 1 : simple, single facet topology; |
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C :: = 2 : customized topology (w2_set_myown_facets) |
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C :: = 3 : 6-face Cube (3 face-dims: nRed, nGreen, nBlue). |
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C nFacets :: Number of facets (or domains) in this topology |
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C facet_dims :: facet pair of dimensions (n1x,n1y, n2x,n2y, ...) |
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C nTiles :: Number of tiles in this topology <- moved to W2_EXCH2_TOPOLOGY.h |
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C nBlankTiles :: Number of "Blank-Tiles" |
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C blankList :: List of "Blank-Tiles" (non active) |
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C-- |
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C W2_mapIO :: select option for global-IO mapping: |
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C =-1 :: old format, put facets 1 after the other in the X dir.; |
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C :: this is not necessary "compact". |
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C = 1 :: compact format, 1 facet after the other (mostly in Y dir.) |
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C :: but needs to fold some facet (domain) if too large |
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C = 0 :: compact format (= 1 long line), one facet after the other. |
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C-- |
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C W2_oUnit :: output fortran Unit for printing Std messages |
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C W2_printMsg :: select option for information messages printing |
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C < 0 :: open and print to "w2_tile_topology" log file |
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C = 0 :: print the minimum, to StdOut |
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C = 1 :: no duplicated print from different processes (only Master) |
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C = 2 :: all processes do print (used to check). |
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INTEGER preDefTopol |
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INTEGER nFacets |
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INTEGER facet_dims(2*W2_maxNbFacets) |
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INTEGER nBlankTiles |
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INTEGER blankList(W2_maxNbTiles) |
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INTEGER W2_mapIO |
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INTEGER W2_oUnit, W2_printMsg |
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COMMON /W2_EXCH2_PARM_I/ |
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& preDefTopol, |
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& nFacets, facet_dims, |
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& nBlankTiles, blankList, |
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& W2_mapIO, |
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& W2_oUnit, W2_printMsg |
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1.10 |
C-- COMMON /W2_EXCH2_PARM_L/ Logical valued parameters used by W2-EXCH2 |
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C W2_useE2ioLayOut :: =T: use Exch2 global-IO Layout; =F: use model default |
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LOGICAL W2_useE2ioLayOut |
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COMMON /W2_EXCH2_PARM_L/ |
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& W2_useE2ioLayOut |
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C-- COMMON /W2_EXCH2_BUILD_I/ Integer variables used to build topology |
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C facet_owns :: Range of tiles this facet "owns" |
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C facet_pij \ :: |
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C facet_oi } :: indices correspondence matrix (facet_pij) & offsets: |
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C facet_oj / :: |
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C-with: suffix "so" for indices of source facet j ; |
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C suffix "tg" for indices of target facet jj= INT(facet_link(i,j)) |
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C pij(:,i,j) : matrix which gives so indices when applied to tg indices |
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C iso = pij(1)*itg + pij(2)*jtg + oi |
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C jso = pij(3)*itg + pij(4)*jtg + oj |
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C----- |
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INTEGER facet_owns(2,W2_maxNbFacets) |
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INTEGER facet_pij(4,4,W2_maxNbFacets) |
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INTEGER facet_oi(4,W2_maxNbFacets) |
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INTEGER facet_oj(4,W2_maxNbFacets) |
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COMMON /W2_EXCH2_BUILD_I/ |
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& facet_owns, |
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& facet_pij, facet_oi, facet_oj |
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1.9 |
C-- COMMON /W2_EXCH2_PARM_R/ Real*4 valued parameters used by W2-EXCH2 |
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C-- topology defined from processing "data.exch2" (preDefTopol=0): |
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C facet_link :: Face-Edge connectivity map: |
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C facet_link(i,j)=XX.1 : face(j)-edge(i) (i=1,2,3,4 <==> N,S,E,W) |
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C is connected to Northern edge of face "XX" ; similarly, |
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C = XX.2 : to Southern.E, XX.3 = Eastern.E, XX.4 = Western.E of face "XX". |
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Real*4 facet_link( 4, W2_maxNbFacets ) |
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COMMON /W2_EXCH2_PARM_R/ facet_link |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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