Add support for IntelLLVM compiler

[DusanJovic-NOAA]

Pull Request Summary

This PR adds support for Intel LLVM compiler.

Description

model/src/CMakeLists.txt has been updated to recognize 'IntelLLVM as a valid compiler id and to define compiler flags for Intel LLVM compiler.

Issue(s) addressed

Commit Message

Add support for IntelLLVM compiler

Check list

• Branch is up to date with the authoritative repository (NOAA-EMC) develop branch.
• Checked the checklist for a developer submitting to develop.
• If a version number update is required, checked the updating version number checklist.
• If a new feature was added, a regression test for testing the new feature is added.

Testing

• How were these changes tested? ufs-weather-model regression test on Hera. See Support IntelLLVM compiler ufs-community/ufs-weather-model#2224.
• Are the changes covered by regression tests? (If not, why? Do new tests need to be added?)
• Have the matrix regression tests been run (if yes, please note HPC and compiler)?
• Please indicate the expected changes in the regression test output, (Note the list of known non-identical tests.)
• Please provide the summary output of matrix.comp (matrix.Diff.txt, matrixCompFull.txt and matrixCompSummary.txt):

[MatthewMasarik-NOAA]

Thank you @DusanJovic-NOAA, I will start reviewing this.

[DusanJovic-NOAA]

When I build ufs-weather-model with WW3 component I noticed the following compiler warning:

Scanning dependencies of target ufs_model
[100%] Building Fortran object CMakeFiles/ufs_model.dir/driver/UFS.F90.o
ifx: command line warning #10121: overriding '-real-size 64' with '-real-size 32'
[100%] Linking Fortran executable ufs_model
[100%] Built target ufs_model

I traced to source of this warning WW3 cmake where compiler flags are set to ww3_lib target as PUBLIC.

https://github.com/NOAA-EMC/WW3/blob/dev/ufs-weather-model/model/src/CMakeLists.txt#L94-L96

I think these flags should be set as PRIVATE. @aerorahul

I can make this change in this PR if it's acceptable.

[jkbk2004]

@MatthewMasarik-NOAA Can you review this pr? We are going to start testing at ufs-community/ufs-weather-model#2224

[MatthewMasarik-NOAA]

@MatthewMasarik-NOAA Can you review this pr? We are going to start testing at ufs-community/ufs-weather-model#2224

@jkbk2004, yes will do. I can complete it by later today or early tomorrow

[MatthewMasarik-NOAA]

Code review
Pass

Testing
Pass

• Machine: Hera
• Description: WW3 standalone was cmake configured and built using Intel-LLVM stack.

Selection of LLVM for C and Fortran compilers confirmed in cmake config output:

-- The C compiler identification is IntelLLVM 2023.2.0
-- The Fortran compiler identification is IntelLLVM 2023.2.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /apps/oneapi/compiler/2023.2.0/linux/bin/icx - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting Fortran compiler ABI info
-- Detecting Fortran compiler ABI info - done
-- Check for working Fortran compiler: /apps/oneapi/compiler/2023.2.0/linux/bin/ifx - skipped
-- Checking whether /apps/oneapi/compiler/2023.2.0/linux/bin/ifx supports Fortran 90
-- Checking whether /apps/oneapi/compiler/2023.2.0/linux/bin/ifx supports Fortran 90 - yes

Full logs:

• ww3_llvm_config.txt
• ww3_llvm_build.txt

[MatthewMasarik-NOAA]

@jkbk2004 @DusanJovic-NOAA, sorry for the delay, this is cleared from my end.

[jkbk2004]

@MatthewMasarik-NOAA all tests are done ufs-community/ufs-weather-model#2224. Please, go ahead to merge this pr.

[MatthewMasarik-NOAA]

@MatthewMasarik-NOAA all tests are done ufs-community/ufs-weather-model#2224. Please, go ahead to merge this pr.

Will do @jkbk2004. I'll let you know shortly

[MatthewMasarik-NOAA]

@jkbk2004, done.

[MatthewMasarik-NOAA]

@DusanJovic-NOAA, thanks for spearheading this.