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C $Header: /u/gcmpack/MITgcm/verification/exp5/code/SIZE.h_mpi,v 1.2 2003/12/10 16:25:56 adcroft Exp $ 
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C $Name: $ 
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C 
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C /==========================================================\ 
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C  SIZE.h Declare size of underlying computational grid.  
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C ========================================================== 
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C  The design here support a threedimensional model grid  
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C  with indices I,J and K. The threedimensional domain  
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C  is comprised of nPx*nSx blocks of size sNx along one axis 
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C  nPy*nSy blocks of size sNy along another axis and one  
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C  block of size Nz along the final axis.  
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C  Blocks have overlap regions of size OLx and OLy along the 
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C  dimensions that are subdivided.  
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C \==========================================================/ 
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C Voodoo numbers controlling data layout. 
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C sNx  No. X points in subgrid. 
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C sNy  No. Y points in subgrid. 
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C OLx  Overlap extent in X. 
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C OLy  Overlat extent in Y. 
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C nSx  No. subgrids in X. 
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C nSy  No. subgrids in Y. 
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C nPx  No. of processes to use in X. 
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C nPy  No. of processes to use in Y. 
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C Nx  No. points in X for the total domain. 
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C Ny  No. points in Y for the total domain. 
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C Nr  No. points in Z for full process domain. 
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INTEGER sNx 
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INTEGER sNy 
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INTEGER OLx 
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INTEGER OLy 
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INTEGER nSx 
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INTEGER nSy 
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INTEGER nPx 
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INTEGER nPy 
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INTEGER Nx 
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INTEGER Ny 
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INTEGER Nr 
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PARAMETER ( 
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& sNx = 32, 
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& sNy = 32, 
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& OLx = 2, 
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& OLy = 2, 
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& nSx = 2, 
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& nSy = 1, 
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& nPx = 1, 
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& nPy = 2, 
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& Nx = sNx*nSx*nPx, 
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& Ny = sNy*nSy*nPy, 
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& Nr = 20) 
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C MAX_OLX  Set to the maximum overlap region size of any array 
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C MAX_OLY that will be exchanged. Controls the sizing of exch 
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C routine buufers. 
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INTEGER MAX_OLX 
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INTEGER MAX_OLY 
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PARAMETER ( MAX_OLX = OLx, 
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& MAX_OLY = OLy ) 