cam6_4_085: Phase 1 of rk_stratiform CCPPization; CCPPize cldfrc

.gitmodules

@@ -36,7 +36,7 @@
 [submodule "atmos_phys"]
 	path = src/atmos_phys
 	url = https://github.com/ESCOMP/atmospheric_physics
-        fxtag = atmos_phys0_11_000
+        fxtag = atmos_phys0_12_000
         fxrequired = AlwaysRequired
 	fxDONOTUSEurl = https://github.com/ESCOMP/atmospheric_physics
 

bld/build-namelist

@@ -5288,6 +5288,11 @@ sub check_snapshot_settings {
                 push (@validList_bc, ("'microp_driver_tend_subcol'"));
             }
         }
+
+        if ($microphys eq 'rk') {
+            push (@validList_bc, ("'rk_stratiform_tend'"));
+        }
+
         push (@validList_bc, ("'aero_model_wetdep'", "'radiation_tend'"));
     }
     if ($user_set_after) {

bld/configure

@@ -2168,13 +2168,14 @@ sub write_filepath
     print $fh "$camsrcdir/src/atmos_phys/to_be_ccppized\n";
     print $fh "$camsrcdir/src/atmos_phys/phys_utils\n";
 
-    #Add the CCPP'ized subdirectories
+    # Add the CCPP'ized subdirectories
     print $fh "$camsrcdir/src/atmos_phys/schemes/tropopause_find\n";
     print $fh "$camsrcdir/src/atmos_phys/schemes/zhang_mcfarlane\n";
     print $fh "$camsrcdir/src/atmos_phys/schemes/dry_adiabatic_adjust\n";
     print $fh "$camsrcdir/src/atmos_phys/schemes/conservation_adjust/check_energy\n";
     print $fh "$camsrcdir/src/atmos_phys/schemes/conservation_adjust/dme_adjust\n";
     print $fh "$camsrcdir/src/atmos_phys/schemes/hack_shallow\n";
+    print $fh "$camsrcdir/src/atmos_phys/schemes/rasch_kristjansson\n";
     print $fh "$camsrcdir/src/atmos_phys/schemes/utilities\n";
 
     print $fh "$camsrcdir/src/atmos_phys/schemes/cloud_fraction\n";

bld/namelist_files/namelist_definition.xml

@@ -5665,15 +5665,15 @@ Default:
 </entry>
 
 <entry id="cam_take_snapshot_before" type="char*32"  category="diagnostics"
-       group="phys_ctl_nl" valid_values="chem_emissions,aoa_tracers_timestep_tend,co2_cycle_set_ptend,chem_timestep_tend,vertical_diffusion_section,aero_model_drydep,gw_tend,qbo_relax,iondrag_calc_section,physics_dme_adjust,physics_dme_adjust,dadadj_tend,convect_deep_tend,convect_shallow_tend,convect_diagnostics_calc,macrop_driver_tend,clubb_tend_cam,microp_section,microp_driver_tend_subcol,aero_model_wetdep,radiation_tend,held_suarez_tend,kessler_tend,thatcher_jablonowski_precip_tend,user_set" >
+       group="phys_ctl_nl" valid_values="chem_emissions,aoa_tracers_timestep_tend,co2_cycle_set_ptend,chem_timestep_tend,vertical_diffusion_section,aero_model_drydep,gw_tend,qbo_relax,iondrag_calc_section,physics_dme_adjust,physics_dme_adjust,dadadj_tend,convect_deep_tend,convect_shallow_tend,convect_diagnostics_calc,macrop_driver_tend,clubb_tend_cam,microp_section,microp_driver_tend_subcol,aero_model_wetdep,radiation_tend,held_suarez_tend,kessler_tend,thatcher_jablonowski_precip_tend,rk_stratiform_tend,user_set" >
 Name of parameterization to take snapshot before running
 user_set is used when a user inserts a call to cam_snapshot_all_outfld
   using cam_snapshot_before_num as the first argument.
 Default: Unused
 </entry>
 
 <entry id="cam_take_snapshot_after" type="char*32"  category="diagnostics"
-       group="phys_ctl_nl" valid_values="chem_emissions,aoa_tracers_timestep_tend,co2_cycle_set_ptend,chem_timestep_tend,vertical_diffusion_section,aero_model_drydep,gw_tend,qbo_relax,iondrag_calc_section,physics_dme_adjust,physics_dme_adjust,dadadj_tend,convect_deep_tend,convect_shallow_tend,convect_diagnostics_calc,macrop_driver_tend,clubb_tend_cam,microp_section,microp_driver_tend_subcol,aero_model_wetdep,radiation_tend,held_suarez_tend,kessler_tend,thatcher_jablonowski_precip_tend,user_set" >
+       group="phys_ctl_nl" valid_values="chem_emissions,aoa_tracers_timestep_tend,co2_cycle_set_ptend,chem_timestep_tend,vertical_diffusion_section,aero_model_drydep,gw_tend,qbo_relax,iondrag_calc_section,physics_dme_adjust,physics_dme_adjust,dadadj_tend,convect_deep_tend,convect_shallow_tend,convect_diagnostics_calc,macrop_driver_tend,clubb_tend_cam,microp_section,microp_driver_tend_subcol,aero_model_wetdep,radiation_tend,held_suarez_tend,kessler_tend,thatcher_jablonowski_precip_tend,rk_stratiform_tend,user_set" >
 Name of parameterization to take snapshot after running
 user_set is used when a user inserts a call to cam_snapshot_all_outfld
   using cam_snapshot_after_num as the first argument.

doc/ChangeLog

@@ -1,5 +1,119 @@
 ===============================================================
 
+Tag name: cam6_4_085
+Originator(s): jimmielin
+Date: 11 April 2025
+One-line Summary: Phase 1 of rk_stratiform CCPPization; CCPPize cldfrc
+Github PR URL: https://github.com/ESCOMP/CAM/pull/1271
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+- Closes #1267 - Convert cloud_fraction/cldfrc to CCPP and move to atmospheric_physics
+- Fixes #1274 for incorrect vertical dimension of `tphysbc_cmfmc` in snapshots
+- Partial completion of #1225 - Convert rk_stratiform_tend (CAM4) to CCPP and move to atmos_phys; most code has been moved to atmospheric_physics.
+
+Describe any changes made to build system: N/A
+
+Describe any changes made to the namelist:
+- build-namelist updated to add `rk_stratiform_tend` snapshot point
+
+List any changes to the defaults for the boundary datasets: N/A
+
+Describe any substantial timing or memory changes: N/A
+
+Code reviewed by: nusbaume, cacraig
+
+List all files eliminated:
+D       src/physics/cam/cldwat.F90
+D       src/physics/cam/pkg_cldoptics.F90
+  - moved to atmospheric_physics: prognostic_cloud_water CCPPized scheme
+  - moved to atmospheric_physics: cloud_optical_properties to-be-ccppized library; dechunkized
+
+List all files added and what they do: N/A
+
+List all existing files that have been modified, and describe the changes:
+M       .gitmodules
+M       src/atmos_phys
+  - new atmos_phys external atmos_phys0_12_000 to include CCPPized schemes
+
+M       bld/configure
+  - include atmos_phys/schemes/rasch_kristjansson
+
+M       bld/build-namelist
+M       bld/namelist_files/namelist_definition.xml
+M       src/physics/cam/physpkg.F90
+  - add rk_stratiform_tend snapshot point
+
+R066    src/physics/cam/rk_stratiform.F90       src/physics/cam/rk_stratiform_cam.F90
+M       src/control/runtime_opts.F90
+M       src/physics/cam/const_init.F90
+  - rename CAM interface to rk_stratiform_cam
+  - CCPPize most logic and moved into atmos_phys
+
+M       src/physics/cam/cloud_diagnostics.F90
+  - changes to support move of pkg_cldoptics to atmos_phys
+
+M       src/physics/cam/cloud_fraction.F90
+  - CCPPized cldfrc and moved to atmos_phys: compute_cloud_fraction
+  - shallow and deep convective cloud cover logic separated into CCPPized scheme in atmos_phys: convective_cloud_cover
+
+M       src/physics/cam/macrop_driver.F90
+  - changes to support CCPPization of cldfrc
+
+M       src/physics/cam/pkg_cld_sediment.F90
+  - CCPPized logic and moved into atmos_phys: cloud_particle_sedimendation
+
+M       src/physics/cam7/cam_snapshot.F90
+M       src/physics/cam/cam_snapshot.F90
+  - fix #1274 vertical dimension of tphysbc_cmfmc
+
+M       src/utils/physconst.F90
+  - add pref reference pressure to match CAM-SIMA
+
+If there were any failures reported from running test_driver.sh on any test
+platform, and checkin with these failures has been OK'd by the gatekeeper,
+then copy the lines from the td.*.status files for the failed tests to the
+appropriate machine below.  All failed tests must be justified.
+
+derecho/intel/aux_cam:
+  ERC_D_Ln9.f19_f19_mg17.QPMOZ.derecho_intel.cam-outfrq3s (Overall: DIFF) details:
+  ERI_D_Ln18.f45_f45_mg37.QPC41850.derecho_intel.cam-co2rmp_usecase (Overall: DIFF) details:
+  ERP_Lh12.f19_f19_mg17.FW4madSD.derecho_intel.cam-outfrq3h (Overall: DIFF) details:
+  SMS_D_Ln9.ne16_ne16_mg17.QPX2000.derecho_intel.cam-outfrq9s_amie (Overall: DIFF) details:
+    - CAM4 baseline changes due to roundoff changes in rk_stratiform microphysics
+
+  ERP_Ln9.f09_f09_mg17.FCSD_HCO.derecho_intel.cam-outfrq9s (Overall: FAIL) details:
+  SMS_Ld1.f09_f09_mg17.FCHIST_GC.derecho_intel.cam-outfrq1d (Overall: DIFF) details:
+    - pre-existing failures due to HEMCO not having reproducible results (issues #1018 and #856)
+
+  SMS_D_Ln9_P1280x1.ne0CONUSne30x8_ne0CONUSne30x8_mt12.FCHIST.derecho_intel.cam-outfrq9s (Overall: FAIL) details:
+    - pre-existing failures due to build-namelist error requiring CLM/CTSM external update
+
+derecho/nvhpc/aux_cam:
+  ERS_Ln9.ne30pg3_ne30pg3_mg17.F2000dev.derecho_nvhpc.cam-outfrq9s_gpu_default (Overall: FAIL) details:
+    - machine error - could not RUN
+
+izumi/nag/aux_cam:
+  ERC_D_Ln9.ne16_ne16_mg17.QPC4.izumi_nag.cam-outfrq3s_usecase (Overall: DIFF) details:
+  ERC_D_Ln9.ne16pg3_ne16pg3_mg17.QPC4.izumi_nag.cam-outfrq3s_usecase (Overall: DIFF) details:
+  SMS_D_Ln3.ne5pg3_ne5pg3_mg37.QPX2000.izumi_nag.cam-outfrq3s (Overall: DIFF) details:
+  SMS_D_Ln6.ne5_ne5_mg37.QPWmaC4.izumi_nag.cam-outfrq3s_physgrid_tem (Overall: DIFF) details:
+    - CAM4 baseline changes due to roundoff changes in rk_stratiform microphysics
+
+izumi/gnu/aux_cam:
+  ERC_D_Ln9.ne5_ne5_mg37.QPC4.izumi_gnu.cam-outfrq3s_nudging_ne5_L26 (Overall: DIFF) details:
+  SMS_P48x1_D_Ln9.f19_f19_mg17.FW4madSD.izumi_gnu.cam-outfrq9s (Overall: DIFF) details:
+    - CAM4 baseline changes due to roundoff changes in rk_stratiform microphysics
+
+CAM tag used for the baseline comparison tests if different than previous
+tag: N/A
+
+Summarize any changes to answers:
+  CAM4 round-off changes in heat flux due to rearrangement of terms / cleanup in CCPPization
+  will lead to greater than round-off changes for CAM4 compsets only after a few timesteps
+  due to chaotic nature of system.
+
+===============================================================
+
 Tag name: cam6_4_084
 Originator(s): fvitt
 Date: 8 Apr 2025

src/control/runtime_opts.F90

@@ -48,7 +48,7 @@ subroutine read_namelist(nlfilename, single_column, scmlat, scmlon)
    use subcol,              only: subcol_readnl
    use cloud_fraction,      only: cldfrc_readnl
    use cldfrc2m,            only: cldfrc2m_readnl
-   use rk_stratiform,       only: rk_stratiform_readnl
+   use rk_stratiform_cam,   only: rk_stratiform_cam_readnl
    use unicon_cam,          only: unicon_cam_readnl
    use zm_conv_intr,        only: zm_conv_readnl
    use hk_conv,             only: hkconv_readnl
@@ -154,7 +154,7 @@ subroutine read_namelist(nlfilename, single_column, scmlat, scmlon)
    call cldfrc2m_readnl(nlfilename)
    call unicon_cam_readnl(nlfilename)
    call zm_conv_readnl(nlfilename)
-   call rk_stratiform_readnl(nlfilename)
+   call rk_stratiform_cam_readnl(nlfilename)
    call hkconv_readnl(nlfilename)
    call uwshcu_readnl(nlfilename)
    call cld_sediment_readnl(nlfilename)

src/physics/cam/cam_snapshot.F90

@@ -239,7 +239,7 @@ subroutine cam_tphysbc_snapshot_init(cam_snapshot_before_num, cam_snapshot_after
      'flx',        'tphysbc_flx_heat',         'unset',              horiz_only)
 
    call snapshot_addfld( ntphysbc_var, tphysbc_snapshot,  cam_snapshot_before_num, cam_snapshot_after_num, &
-     'cmfmc',        'tphysbc_cmfmc',         'unset',              'lev')
+     'cmfmc',        'tphysbc_cmfmc',         'unset',              'ilev')
 
    call snapshot_addfld( ntphysbc_var, tphysbc_snapshot,  cam_snapshot_before_num, cam_snapshot_after_num, &
      'cmfcme',        'tphysbc_cmfcme',         'unset',              'lev')