Question: I got a message "Unknown compiler: IntelLLVM"

[guoqing-noaa]

I tried to compile the MPAS-Model using cmake under spack-stack-1.9.3 on Ursa.

Here is the modulefile I used:

prepend_path("MODULEPATH", "/contrib/spack-stack/spack-stack-1.9.3/envs/ue-oneapi-2024.2.1/install/modulefiles/Core")

load("stack-oneapi/2024.2.1")
load("stack-intel-oneapi-mpi/2021.13")

load("cmake/3.27.9")
load("parallel-netcdf/1.12.3")
load("parallelio/2.6.2")

setenv("CMAKE_C_COMPILER", "mpiicc")
setenv("CMAKE_CXX_COMPILER", "mpiicpc")
setenv("CMAKE_Fortran_COMPILER", "mpiifort")

It can successfully build the MPAS-Model, but I found the following confusing information:
Unknown compiler: IntelLLVM

It looks like the compiling is done using ifort:
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for continued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.

Any comments/suggestions that I got the confusing Unknown compiler: IntelLLVM message? Thanks!

[climbfuji]

Maybe it's coming from the C/C++ compilers? These are icx and icpx, regardless of whether you use mpiicc or mpiicx (or mpiicpc or mpiicpx). icc and icpc were removed in oneapi 2024.0.0

[guoqing-noaa]

Maybe it's coming from the C/C++ compilers? These are icx and icpx, regardless of whether you use mpiicc or mpiicx (or mpiicpc or mpiicpx). icc and icpc were removed in oneapi 2024.0.0

Thanks for lightning fast response!! @climbfuji

For information, here is the beginning part of the build outputs:

-- The C compiler identification is IntelLLVM 2024.2.1                                                                                                                                                                       
-- The Fortran compiler identification is Intel 2021.1.0.20240703
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /apps/spack-2024-12/linux-rocky9-x86_64/gcc-11.4.1/intel-oneapi-compilers-2024.2.1-oqhstbmawnrsdw472p4pjsopj547o6xs/compiler/2024.2/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/spack-2024-12/linux-rocky9-x86_64/gcc-11.4.1/intel-oneapi-compilers-2024.2.1-oqhstbmawnrsdw472p4pjsopj547o6xs/compiler/2024.2/bin/ifort - skipped
-- [OPTION] MPAS_CORES: init_atmosphere;atmosphere
-- [OPTION] MPAS_DOUBLE_PRECISION: OFF
-- [OPTION] MPAS_PROFILE: OFF
-- [OPTION] MPAS_OPENMP: OFF
-- [OPTION] BUILD_SHARED_LIBS: ON
-- [OPTION] MPAS_USE_PIO: OFF
-- Setting default build type to Release.  Specify CMAKE_BUILD_TYPE to override.
-- Found OpenMP_Fortran: -qopenmp (found version "5.0")
-- Found OpenMP: TRUE (found version "5.0") found components: Fortran
-- Found MPI_Fortran: /apps/spack-2024-12/linux-rocky9-x86_64/oneapi-2024.2.1/intel-oneapi-mpi-2021.13.1-ss72gbndvat3oz22sa6lhmlbjkeabrn4/mpi/2021.13/lib/libmpifort.so (found version "3.1")
-- Found MPI: TRUE (found version "3.1") found components: Fortran
-- Found PnetCDF: /contrib/spack-stack/spack-stack-1.9.3/envs/ue-oneapi-2024.2.1/install/oneapi/2024.2.1/parallel-netcdf-1.12.3-oeqtpxg/bin/pnetcdf-config (found version "1.12.3") found components: Fortran
-- FindPnetCDF:
--   - PnetCDF_VERSION [1.12.3]
--   - PnetCDF_PREFIX [/contrib/spack-stack/spack-stack-1.9.3/envs/ue-oneapi-2024.2.1/install/oneapi/2024.2.1/parallel-netcdf-1.12.3-oeqtpxg]
--   - PnetCDF Components Found: Fortran;C;CXX
-- Unknown compiler: IntelLLVM
-- Found MPI_C: /apps/spack-2024-12/linux-rocky9-x86_64/oneapi-2024.2.1/intel-oneapi-mpi-2021.13.1-ss72gbndvat3oz22sa6lhmlbjkeabrn4/mpi/2021.13/lib/libmpifort.so (found version "3.1")
-- Found MPI: TRUE (found version "3.1") found components: C Fortran
-- Found PnetCDF: /contrib/spack-stack/spack-stack-1.9.3/envs/ue-oneapi-2024.2.1/install/oneapi/2024.2.1/parallel-netcdf-1.12.3-oeqtpxg/bin/pnetcdf-config (found version "1.12.3") found components: Fortran C
-- Configure MPAS for internal ESMF
CPP_EXTRA_FLAGS: -DCORE_INIT_ATMOSPHERE;-DMPAS_NAMELIST_SUFFIX=init_atmosphere;-DMPAS_EXE_NAME=mpas_init_atmosphere;-DMPAS_GIT_VERSION=v8.2.2-2.6-536-g8c5ab63e;-DMPAS_BUILD_TARGET=Intel
-- Directory  already exists, skipping clone
-- Directory  already exists, skipping clone
-- Directory  already exists, skipping clone
-- Directory  already exists, skipping clone
-- Directory  already exists, skipping clone
CPP_EXTRA_FLAGS: -DCORE_ATMOSPHERE;-DMPAS_NAMELIST_SUFFIX=atmosphere;-DMPAS_EXE_NAME=mpas_atmosphere;-DMPAS_GIT_VERSION=v8.2.2-2.6-536-g8c5ab63e;-DMPAS_BUILD_TARGET=Intel
-- MPAS-Data source dir: /tmp/gge/MPAS-Model/build/_deps/mpas_data-src
-- Configuring done (7.3s)
-- Generating done (0.1s)
-- Build files have been written to: /tmp/gge/MPAS-Model/build
[  0%] Building C object src/external/ezxml/CMakeFiles/ezxml.dir/ezxml.c.o
[  0%] Building C object src/external/SMIOL/CMakeFiles/smiol.dir/smiol_utils.c.o
[  1%] Building C object src/external/SMIOL/CMakeFiles/smiol.dir/smiol.c.o
[  1%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/ESMF_FractionMod.F90.o
[  1%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/ESMF_BaseMod.F90.o
[  1%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/wrf_message.F90.o
[  1%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/wrf_error_fatal.F90.o
[  1%] Built target init_atmosphere_include_link
[  1%] Built target atmosphere_include_link
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
/tmp/gge/MPAS-Model/src/external/ezxml/ezxml.c:371:26: warning: unsequenced modification and access to 's' [-Wunsequenced]
  371 |             while (*(n = ++s + strspn(s, EZXML_WS)) && *n != '>') {
      |                          ^            ~
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(672): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [TYPE]
      subroutine ESMF_AttributeGetbyNumber(anytype, number, name, type, value, rc)
------------------------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(623): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [TYPE]
      subroutine ESMF_AttributeGet(anytype, name, type, value, rc)
--------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(699): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [NAMELIST]
      subroutine ESMF_AttributeGetNameList(anytype, count, namelist, rc)
-----------------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(672): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [VALUE]
      subroutine ESMF_AttributeGetbyNumber(anytype, number, name, type, value, rc)
------------------------------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(623): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [VALUE]
      subroutine ESMF_AttributeGet(anytype, name, type, value, rc)
--------------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(699): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [COUNT]
      subroutine ESMF_AttributeGetNameList(anytype, count, namelist, rc)
----------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(648): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [COUNT]
      subroutine ESMF_AttributeGetCount(anytype, count, rc)
-------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(802): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [VALUELIST]
      subroutine ESMF_AttributeGetObjectList(anytypelist, name, typelist, valuelist, rc)
--------------------------------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(750): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [VALUELIST]
      subroutine ESMF_AttributeGetList(anytype, namelist, typelist, valuelist, rc)
--------------------------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(802): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [TYPELIST]
      subroutine ESMF_AttributeGetObjectList(anytypelist, name, typelist, valuelist, rc)
----------------------------------------------------------------^
/tmp/gge/MPAS-Model/src/external/esmf_time_f90/ESMF_BaseMod.F90(750): warning #6843: A dummy argument with an explicit INTENT(OUT) declaration is not given an explicit value.   [TYPELIST]
      subroutine ESMF_AttributeGetList(anytype, namelist, typelist, valuelist, rc)
----------------------------------------------------------^
[  2%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/MeatMod.F90.o
[  2%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/ESMF_BaseTimeMod.F90.o
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
[  3%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/ESMF_CalendarMod.F90.o
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
[  3%] Linking C shared library ../../../lib/libsmiol.so
1 warning generated.
[  4%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/ESMF_ShrTimeMod.F90.o
[  4%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/ESMF_Stubs.F90.o
[  5%] Linking C shared library ../../../lib/libezxml.so
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
[  5%] Built target smiol
[  5%] Building Fortran object src/external/esmf_time_f90/CMakeFiles/esmf.dir/ESMF_TimeIntervalMod.F90.o
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
[  5%] Building Fortran object src/external/SMIOL/CMakeFiles/smiolf.dir/smiolf.F90.o
ifort: remark #10448: Intel(R) Fortran Compiler Classic (ifort) is now deprecated and will be discontinued late 2024. Intel recommends that customers transition now to using the LLVM-based Intel(R) Fortran Compiler (ifx) for conti
nued Windows* and Linux* support, new language support, new language features, and optimizations. Use '-diag-disable=10448' to disable this message.
[  5%] Built target ezxml

[climbfuji]

@guoqing-noaa This got lost end of last year. Is this still an issue?

[guoqing-noaa]

I am not sure. But I will close this issue for now.
If I have further questions, I can reopen later. Thanks!