Fix PR#377 Enable Transmute script for bl imp and exp kernels - over i

[Benjamin Went (MetBenjaminWent)]

Create or enable a Transformation script for the boundary layer kernels which affect the domain to add OMP directives.
Introduced is a local.py script for kernels, which if the loop variable is an i or an l, then the OMP directive is added, instead of the top loop like the Transmute global script.
interfaces/physics_schemes_interface/source/kernel/bl_exp_kernel_mod.F90 - Local kernel script with Override
interfaces/physics_schemes_interface/source/kernel/bl_imp_kernel_mod.F90 - Local kernel script with Override
interfaces/physics_schemes_interface/source/kernel/bl_imp2_kernel_mod.F90 - Local kernel script with Override

Performance of all kernels improves as a result of the original changes in PR #377 , see #106. Combined with #416, the implicit umbrella of imp_kernel and imp2_kernel is much greater.

NOTE, these changes have not been explicitly tested, and may be marginally different than #377, though the same loops are still parallelised, but over a different index.

Sci/Tech Reviewer: Hacka Fett (@christophermaynard)
Code Reviewer: svadams (@svadams)

Umbrella Issue: #106
Issue: #361

PR Summary

Sci/Tech Reviewer:
Code Reviewer:

Code Quality Checklist

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Testing

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trac.log

Test Suite Results - lfric_apps - transmute_bl_exp_imp_kernels_2/run7

Suite Information

Item	Value
Suite Name	transmute_bl_exp_imp_kernels_2/run7
Suite User	benjamin.went
Workflow Start	2026-06-02T15:25:59
Groups Run	all

Dependency	Reference	Main Like
casim	MetOffice/casim@2026.03.2	True
jules	MetOffice/jules@3647a42	True
lfric_apps	MetBenjaminWent/lfric_apps@transmute_bl_exp_imp_kernels_2	False
lfric_core	MetOffice/lfric_core@bf23673	True
moci	MetOffice/moci@2026.03.2	True
SimSys_Scripts	MetOffice/SimSys_Scripts@3e2998b	True
socrates	MetOffice/socrates@2026.03.2	True
socrates-spectral	MetOffice/socrates-spectral@2026.03.2	True
ukca	MetOffice/ukca@1cdb9c2	True

Task Information

❌ failed tasks - 2

Task	State
run_lfric_atm_scm_gal9_gabls4-BiP2x2-50000x50000_ex1a_cce_fast-debug-32bit	failed
run_linear_integration_tests_azspice_gnu_64bit	failed

✅ succeeded tasks - 1570

Test Suite Results - lfric_apps - transmute_bl_exp_imp_kernels_2/run6

Suite Information

Item	Value
Suite Name	transmute_bl_exp_imp_kernels_2/run6
Suite User	benjamin.went
Workflow Start	2026-06-02T14:31:40
Groups Run	ex1a_omp_developer

Dependency	Reference	Main Like
casim	MetOffice/casim@2026.03.2	True
jules	MetOffice/jules@3647a42	True
lfric_apps	MetBenjaminWent/lfric_apps@transmute_bl_exp_imp_kernels_2	False
lfric_core	MetOffice/lfric_core@bf23673	True
moci	MetOffice/moci@2026.03.2	True
SimSys_Scripts	MetOffice/SimSys_Scripts@3e2998b	True
socrates	MetOffice/socrates@2026.03.2	True
socrates-spectral	MetOffice/socrates-spectral@2026.03.2	True
ukca	MetOffice/ukca@1cdb9c2	True

Task Information

✅ succeeded tasks - 51

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(Please alert the code reviewer via a tag when you have approved the SR)

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[Benjamin Went (MetBenjaminWent)]

As this is a continuation of PR #377 and issue #361, the performance data and existing approvals should still hold for this PR.