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#include "CPP_OPTIONS.h" |
#include "CPP_OPTIONS.h" |
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C o Switch to code that has the k-loop inside the |
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C ij-loops, which matters in adjoint mode. |
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#ifdef ALLOW_AUTODIFF |
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#define ALLOW_SOLVERS_KLOOPINSIDE |
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#endif |
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CBOP |
CBOP |
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C !ROUTINE: SOLVE_PENTADIAGONAL |
C !ROUTINE: SOLVE_PENTADIAGONAL |
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C !INTERFACE: |
C !INTERFACE: |
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C !LOCAL VARIABLES: |
C !LOCAL VARIABLES: |
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C == Local variables == |
C == Local variables == |
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INTEGER i,j,k |
INTEGER i,j,k |
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#ifdef ALLOW_SOLVERS_KLOOPINSIDE |
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_RL y5d_m1(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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_RL a5d_prime(Nr), b5d_prime(Nr) |
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_RL c5d_prime(Nr), d5d_prime(Nr), e5d_prime(Nr) |
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_RL y5d_prime(Nr), y5d_update(Nr), tmpval |
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#endif |
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CEOP |
CEOP |
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#ifndef ALLOW_SOLVERS_KLOOPINSIDE |
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errCode = 0 |
errCode = 0 |
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DO k=1,Nr |
DO k=1,Nr |
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ENDIF |
ENDIF |
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ENDDO |
ENDDO |
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#else /* ALLOW_SOLVERS_KLOOPINSIDE */ |
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errCode = 0 |
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C-- Temporary array |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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DO k=1,Nr |
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y5d_m1(i,j,k) = y5d(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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C-- Main loop |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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DO k=1,Nr |
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a5d_prime(k) = 0. _d 0 |
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b5d_prime(k) = 0. _d 0 |
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c5d_prime(k) = 0. _d 0 |
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d5d_prime(k) = 0. _d 0 |
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e5d_prime(k) = 0. _d 0 |
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y5d_prime(k) = 0. _d 0 |
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y5d_update(k) = 0. _d 0 |
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ENDDO |
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DO k=1,Nr |
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C-- forward sweep (starting from top) |
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IF (k.EQ.1) THEN |
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c just copy terms |
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a5d_prime(k) = 0. _d 0 |
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b5d_prime(k) = 0. _d 0 |
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c5d_prime(k) = c5d(i,j,k) |
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d5d_prime(k) = d5d(i,j,k) |
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e5d_prime(k) = e5d(i,j,k) |
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y5d_prime(k) = y5d_m1(i,j,k) |
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ELSEIF (k.EQ.2) THEN |
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c subtract one term |
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a5d_prime(k) = 0. _d 0 |
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b5d_prime(k) = 0. _d 0 |
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c5d_prime(k) = c5d(i,j,k) |
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& -b5d(i,j,k)*d5d_prime(k-1) |
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d5d_prime(k) = d5d(i,j,k) |
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& -b5d(i,j,k)*e5d_prime(k-1) |
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e5d_prime(k) = e5d(i,j,k) |
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y5d_prime(k) = y5d_m1(i,j,k) |
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& -b5d(i,j,k)*y5d_prime(k-1) |
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ELSE |
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c subtract two terms |
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a5d_prime(k) = 0. _d 0 |
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b5d_prime(k) = 0. _d 0 |
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c5d_prime(k) = c5d(i,j,k) |
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& -a5d(i,j,k)*e5d_prime(k-2) |
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& -(b5d(i,j,k)-a5d(i,j,k)*d5d_prime(k-2))*d5d_prime(k-1) |
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d5d_prime(k) = d5d(i,j,k) |
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& -(b5d(i,j,k)-a5d(i,j,k)*d5d_prime(k-2))*e5d_prime(k-1) |
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e5d_prime(k) = e5d(i,j,k) |
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y5d_prime(k) = y5d_m1(i,j,k) |
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& -a5d(i,j,k)*y5d_prime(k-2) |
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& -(b5d(i,j,k)-a5d(i,j,k)*d5d_prime(k-2))*y5d_prime(k-1) |
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ENDIF |
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c normalization |
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tmpval=c5d_prime(k) |
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IF ( tmpval.NE.0. _d 0 ) THEN |
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a5d_prime(k) = a5d_prime(k) / tmpval |
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b5d_prime(k) = b5d_prime(k) / tmpval |
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c5d_prime(k) = 1. _d 0 |
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d5d_prime(k) = d5d_prime(k) / tmpval |
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e5d_prime(k) = e5d_prime(k) / tmpval |
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y5d_prime(k) = y5d_prime(k) / tmpval |
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ELSE |
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a5d_prime(k) = 0. _d 0 |
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b5d_prime(k) = 0. _d 0 |
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c5d_prime(k) = 0. _d 0 |
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d5d_prime(k) = 0. _d 0 |
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e5d_prime(k) = 0. _d 0 |
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y5d_prime(k) = 0. _d 0 |
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errCode = 1 |
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ENDIF |
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ENDDO |
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C-- Backward sweep (starting from bottom) |
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DO k=Nr,1,-1 |
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IF (k.EQ.Nr) THEN |
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y5d_update(k) = y5d_prime(k) |
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ELSEIF (k.EQ.Nr-1) THEN |
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y5d_update(k) = y5d_prime(k) |
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& - y5d_update(k+1)*d5d_prime(k) |
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ELSE |
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y5d_update(k) = y5d_prime(k) |
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& - y5d_update(k+1)*d5d_prime(k) |
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& - y5d_update(k+2)*e5d_prime(k) |
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ENDIF |
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ENDDO |
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C-- Update array |
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DO k=1,Nr |
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y5d(i,j,k,bi,bj)=y5d_update(k) |
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ENDDO |
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ENDDO |
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ENDDO |
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#endif /* ALLOW_SOLVERS_KLOOPINSIDE */ |
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RETURN |
RETURN |
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END |
END |