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Temporal fix for slow nudging with FMS2 #7

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merged 2 commits into from
May 16, 2024
Merged

Temporal fix for slow nudging with FMS2 #7

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d8a7463
add first_time logic for get_external_field_info call
yichengt900 May 14, 2024
4a3c5e0
Merge branch 'dev/cefi' into fix/fms2_nudge
yichengt900 May 14, 2024
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12 changes: 8 additions & 4 deletions src/framework/MOM_horizontal_regridding.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -682,18 +682,19 @@ subroutine horiz_interp_and_extrap_tracer_fms_id(field, Time, G, tr_z, mask_z, &
real :: pole ! The sum of tracer values at the pole [a]
real :: max_depth ! The maximum depth of the ocean [Z ~> m]
real :: npole ! The number of points contributing to the pole value [nondim]
real :: missing_val_in ! The missing value in the input field [a]
real, save :: missing_val_in ! The missing value in the input field [a]
real :: roundoff ! The magnitude of roundoff, usually ~2e-16 [nondim]
logical :: add_np
type(horiz_interp_type) :: Interp
type(axis_info), dimension(4) :: axes_data
type(axis_info), save, dimension(4) :: axes_data
integer :: is, ie, js, je ! compute domain indices
integer :: isg, ieg, jsg, jeg ! global extent
integer :: isd, ied, jsd, jed ! data domain indices
integer :: id_clock_read
integer, dimension(4) :: fld_sz
integer, save, dimension(4) :: fld_sz
logical :: debug=.false.
logical :: is_ongrid
logical, save :: first_time = .true.
integer :: ans_date ! The vintage of the expressions and order of arithmetic to use
real :: I_scale ! The inverse of the scale factor for diagnostic output [a A-1 ~> 1]
real :: dtr_iter_stop ! The tolerance for changes in tracer concentrations between smoothing
Expand Down Expand Up @@ -735,7 +736,10 @@ subroutine horiz_interp_and_extrap_tracer_fms_id(field, Time, G, tr_z, mask_z, &

call cpu_clock_begin(id_clock_read)

call get_external_field_info(field, size=fld_sz, axes=axes_data, missing=missing_val_in)
if (first_time) then
call get_external_field_info(field, size=fld_sz, axes=axes_data, missing=missing_val_in)
first_time = .false.
endif !first_time
missing_value = scale*missing_val_in

verbosity = MOM_get_verbosity()
Expand Down