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C $Header: /u/gcmpack/MITgcm/pkg/exch2/W2_EXCH2_TOPOLOGY.h,v 1.5 2009/05/12 19:40:32 jmc Exp $ |
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C $Name: $ |
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|
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CBOP |
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C !ROUTINE: W2_EXCH2_TOPOLOGY.h |
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C !INTERFACE: |
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C #include W2_EXCH2_TOPOLOGY.h |
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|
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C !DESCRIPTION: |
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C *==========================================================* |
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C | W2_EXCH2_TOPOLOGY.h |
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C | o Header defining tile exchange and mapping for W2_EXCH2 |
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C *==========================================================* |
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C | 1rst part holds the full topology structure (same for all |
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C | process) and is independent of tile-processor repartition |
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C | (needs W2_EXCH2_SIZE.h to be included before) |
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C | 2nd part (put in this header for convienience) holds |
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C | Tile Ids and is function of tile-process repartition |
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C | (needs SIZE.h to be included before) |
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C *==========================================================* |
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CEOP |
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|
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C--- Topology data structures |
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C exch2_global_Nx :: Global-file domain length. |
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C exch2_global_Ny :: Global-file domain height. |
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C--- Tiling and Exch data structures |
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C exch2_tProc :: Rank of process owning tile (filled at run time). |
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C exch2_myFace :: Face number for each tile (used for I/O). |
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C exch2_mydNx :: Face size in X for each tile (for I/O). |
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C exch2_mydNy :: Face size in Y for each tile (for I/O). |
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C exch2_tNx :: Size in X for each tile. |
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C exch2_tNy :: Size in Y for each tile. |
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C exch2_tBasex :: Tile offset in X within its sub-domain (cube face) |
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C exch2_tBasey :: Tile offset in Y within its sub-domain (cube face) |
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C exch2_txGlobalo :: Tile base X index within global index space. |
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C exch2_tyGlobalo :: Tile base Y index within global index space. |
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C exch2_isWedge :: 1 if West is at domain edge, 0 if not. |
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C exch2_isNedge :: 1 if North is at domain edge, 0 if not. |
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C exch2_isEedge :: 1 if East is at domain edge, 0 if not. |
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C exch2_isSedge :: 1 if South is at domain edge, 0 if not. |
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C exch2_nNeighbours :: Tile neighbour entries count. |
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C exch2_neighbourId :: Tile number for each neighbour entry. |
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C exch2_opposingSend:: Neighbour entry in target tile send |
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C :: which has this tile and neighbour as its target. |
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C exch2_pij(:,n,t) :: Matrix which applies to target-tile indices to get |
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C :: source-tile "t" indices, for neighbour entry "n". |
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C exch2_oi(n,t) :: Source-tile "t" X index offset in target |
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C :: to source connection (neighbour entry "n"). |
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C exch2_oj(n,t) :: Source-tile "t" Y index offset in target |
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C :: to source connection (neighbour entry "n"). |
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INTEGER exch2_global_Nx |
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INTEGER exch2_global_Ny |
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INTEGER exch2_tProc( W2_maxNbTiles ) |
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INTEGER exch2_myFace( W2_maxNbTiles ) |
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INTEGER exch2_mydNx( W2_maxNbTiles ) |
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INTEGER exch2_mydNy( W2_maxNbTiles ) |
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INTEGER exch2_tNx( W2_maxNbTiles ) |
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INTEGER exch2_tNy( W2_maxNbTiles ) |
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INTEGER exch2_tBasex( W2_maxNbTiles ) |
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INTEGER exch2_tBasey( W2_maxNbTiles ) |
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INTEGER exch2_txGlobalo(W2_maxNbTiles ) |
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INTEGER exch2_tyGlobalo(W2_maxNbTiles ) |
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INTEGER exch2_isWedge( W2_maxNbTiles ) |
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INTEGER exch2_isNedge( W2_maxNbTiles ) |
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INTEGER exch2_isEedge( W2_maxNbTiles ) |
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INTEGER exch2_isSedge( W2_maxNbTiles ) |
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INTEGER exch2_nNeighbours( W2_maxNbTiles ) |
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INTEGER exch2_neighbourId( W2_maxNeighbours, W2_maxNbTiles ) |
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INTEGER exch2_opposingSend( W2_maxNeighbours, W2_maxNbTiles ) |
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INTEGER exch2_pij(4,W2_maxNeighbours, W2_maxNbTiles ) |
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INTEGER exch2_oi ( W2_maxNeighbours, W2_maxNbTiles ) |
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INTEGER exch2_oj ( W2_maxNeighbours, W2_maxNbTiles ) |
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|
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COMMON /W2_EXCH2_TOPO_I/ |
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& exch2_global_Nx, exch2_global_Ny, |
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& exch2_tProc, |
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& exch2_myFace, exch2_mydNx, exch2_mydNy, |
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& exch2_tNx, exch2_tNy, |
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& exch2_tBasex, exch2_tBasey, |
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& exch2_txGlobalo,exch2_tyGlobalo, |
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& exch2_isWedge, exch2_isNedge, |
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& exch2_isEedge, exch2_isSedge, |
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& exch2_nNeighbours, exch2_neighbourId, |
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& exch2_opposingSend, |
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& exch2_pij, |
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& exch2_oi, exch2_oj |
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|
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C--- Exchange execution loop data structures |
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C exch2_iLo,iHi(n,t) :: X-index range of this tile "t" halo-region |
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C :: to be updated with neighbour entry "n". |
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C exch2_jLo,jHi(n,t) :: Y-index range of this tile "t" halo-region |
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C :: to be updated with neighbour entry "n". |
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INTEGER exch2_iLo( W2_maxNeighbours, W2_maxNbTiles ) |
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INTEGER exch2_iHi( W2_maxNeighbours, W2_maxNbTiles ) |
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INTEGER exch2_jLo( W2_maxNeighbours, W2_maxNbTiles ) |
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INTEGER exch2_jHi( W2_maxNeighbours, W2_maxNbTiles ) |
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COMMON /W2_EXCH2_HALO_SPEC/ |
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& exch2_iLo, exch2_iHi, |
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& exch2_jLo, exch2_jHi |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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C-- COMMON /W2_EXCH2_TILE_ID/ tile ids |
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C W2 tile id variables (tile ids are no longer a function of |
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C process and subgrid indices). |
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C W2_myTileList :: list of tiles owned by this process |
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C W2_procTileList :: same as W2_myTileList, but contains |
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C information for all processes |
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INTEGER W2_myTileList(nSx,nSy) |
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INTEGER W2_procTileList(nSx,nSy,nPx*nPy) |
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COMMON /W2_EXCH2_TILE_ID/ |
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& W2_myTileList, W2_procTileList |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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