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Fix bit for bit error in OpenMP IEVA #1442

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Mar 27, 2021
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Fix bit for bit error in OpenMP IEVA #1442

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14 changes: 11 additions & 3 deletions dyn_em/module_big_step_utilities_em.F
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Original file line number Diff line number Diff line change
Expand Up @@ -3636,22 +3636,30 @@ SUBROUTINE calculate_full ( rfield, rfieldb, rfieldp, &

! Local indices.

INTEGER :: i, j, k, itf, jtf, ktf
INTEGER :: i, j, k, itf, jtf, ktf, i_start, j_start

!<DESCRIPTION>
!
! calculate_full
! calculates full 3D field from pertubation and base field.
! The input fields (mu base and perturbation mu) are communicated prior
! to this call. That fills the total field into the halo region. That
! extra row/column is only used by the IEVA scheme. Having the extra
! row/column filled with valid values is not a problem for the rest of
! the model.
!
!</DESCRIPTION>

itf=MIN(ite,ide-1)
jtf=MIN(jte,jde-1)
ktf=MIN(kte,kde-1)

DO j=jts,jtf
i_start=its-1
j_start=jts-1

DO j=j_start,jtf
DO k=kts,ktf
DO i=its,itf
DO i=i_start,itf
rfield(i,k,j)=rfieldb(i,k,j)+rfieldp(i,k,j)
ENDDO
ENDDO
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