ESMF, NEMSIO and UFS-UTILS changes. (#25846)

* ESMF and NEMSIO changes.

- Updating ESMF to set the COMM correctly when using Intel oneapi.
- Explicitly setting the CMake MPI Fortran compiler for NEMSIO.

* Update UFS utils CMake to use MPI_<lang>_COMPILER.

var/spack/repos/builtin/packages/esmf/package.py

@@ -176,7 +176,9 @@ def edit(self, spec, prefix):
                 os.environ['ESMF_CXXLINKLIBS'] = '-lmpifort'
             elif '^openmpi' in spec:
                 os.environ['ESMF_COMM'] = 'openmpi'
-            elif '^intel-parallel-studio+mpi' in spec or '^intel-mpi' in spec:
+            elif '^intel-parallel-studio+mpi' in spec or \
+                 '^intel-mpi' in spec or \
+                 '^intel-oneapi-mpi' in spec:
                 os.environ['ESMF_COMM'] = 'intelmpi'
         else:
             # Force use of the single-processor MPI-bypass library.

var/spack/repos/builtin/packages/nemsio/package.py

@@ -21,3 +21,6 @@ class Nemsio(CMakePackage):
     depends_on('bacio')
     depends_on('mpi')
     depends_on('w3nco')
+
+    def cmake_args(self):
+        return ['-DMPI_Fortran_COMPILER=%s' % self.spec['mpi'].mpifc]

var/spack/repos/builtin/packages/ufs-utils/package.py

@@ -35,5 +35,9 @@ class UfsUtils(CMakePackage):
     depends_on('wgrib2')
     depends_on('zlib')
 
+    def cmake_args(self):
+        return ['-DMPI_C_COMPILER=%s' % self.spec['mpi'].mpicc,
+                '-DMPI_Fortran_COMPILER=%s' % self.spec['mpi'].mpifc]
+
     def setup_build_environment(self, env):
         env.set('ESMFMKFILE', join_path(self.spec['esmf'].prefix.lib, 'esmf.mk'))