Updates to use FMS 2021.03 (NCAR#374)

* io/FV3GFS_io.F90 updated to use fms2_io
* atmos_model.F90 and ccpp/data/GFS_typefs.F90 updates to input_nml_file handling
* atmos_cubed_sphere submodule updated

CMakeLists.txt

@@ -61,6 +61,8 @@ list(APPEND _fv3dycore_defs_private SPMD
                                     GFS_TYPES
                                     USE_GFSL63
                                     MOIST_CAPPA
+                                    INTERNAL_FILE_NML
+                                    ENABLE_QUAD_PRECISION
                                     USE_COND)
 
 if(MULTI_GASES)

atmos_model.F90

@@ -650,6 +650,8 @@ subroutine atmos_model_init (Atmos, Time_init, Time, Time_step)
    Init_parm%hydrostatic     = Atm(mygrid)%flagstruct%hydrostatic
 
 #ifdef INTERNAL_FILE_NML
+   ! allocate required to work around GNU compiler bug 100886 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100886
+   allocate(Init_parm%input_nml_file, mold=input_nml_file)
    Init_parm%input_nml_file  => input_nml_file
    Init_parm%fn_nml='using internal file'
 #else

ccpp/data/GFS_typedefs.F90

@@ -148,9 +148,9 @@ module GFS_typedefs
     character(len=32), pointer :: tracer_names(:) !< tracers names to dereference tracer id
     integer,           pointer :: tracer_types(:) !< tracers types: 0=generic, 1=chem,prog, 2=chem,diag
     character(len=64) :: fn_nml                   !< namelist filename
-    character(len=256), pointer :: input_nml_file(:) !< character string containing full namelist
-                                                     !< for use with internal file reads
-  end type GFS_init_type
+    character(len=:), pointer, dimension(:) :: input_nml_file => null() !< character string containing full namelist
+                                                                        !< for use with internal file reads    
+ end type GFS_init_type
 
 
 !----------------------------------------------------------------
@@ -586,8 +586,8 @@ module GFS_typedefs
     integer              :: nthreads        !< OpenMP threads available for physics
     integer              :: nlunit          !< unit for namelist
     character(len=64)    :: fn_nml          !< namelist filename for surface data cycling
-    character(len=256), pointer :: input_nml_file(:) !< character string containing full namelist
-                                                     !< for use with internal file reads
+    character(len=:), pointer, dimension(:) :: input_nml_file => null() !< character string containing full namelist
+                                                                        !< for use with internal file reads
     integer              :: input_nml_file_length    !< length (number of lines) in namelist for internal reads
     integer              :: logunit
     real(kind=kind_phys) :: fhzero          !< hours between clearing of diagnostic buckets
@@ -3086,7 +3086,7 @@ subroutine control_initialize (Model, nlunit, fn_nml, me, master, &
     integer,                intent(in) :: nwat
     character(len=32),      intent(in) :: tracer_names(:)
     integer,                intent(in) :: tracer_types(:)
-    character(len=256),     intent(in), pointer :: input_nml_file(:)
+    character(len=:),       intent(in), dimension(:), pointer :: input_nml_file
     integer,                intent(in) :: blksz(:)
     real(kind=kind_phys), dimension(:), intent(in) :: ak
     real(kind=kind_phys), dimension(:), intent(in) :: bk
@@ -3723,6 +3723,8 @@ subroutine control_initialize (Model, nlunit, fn_nml, me, master, &
 
 !--- read in the namelist
 #ifdef INTERNAL_FILE_NML
+    ! allocate required to work around GNU compiler bug 100886 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100886
+    allocate(Model%input_nml_file, mold=input_nml_file)
     Model%input_nml_file => input_nml_file
     read(Model%input_nml_file, nml=gfs_physics_nml)
     ! Set length (number of lines) in namelist for internal reads