Stop users from using full SBM for the time being (#1740)

TYPE: bug fix, text only

KEYWORDS: full spectral bin microphysics, disable its use

SOURCE: J. Shpund, PNNL

DESCRIPTION OF CHANGES:
Problem:
The full spectral bin microphysics (mp_physics = 32) appears to be out of date, and it has significantly degraded performance.

Solution:
The contributors hence recommended not to use the full SBM for the time being. Use the fast version instead (mp_physics=30). A stop is added if the model detects the use of the full SBM.

LIST OF MODIFIED FILES:
M share/module_check_a_mundo.F

TESTS CONDUCTED:

The model will stop if mp_physics is set to 32
The Jenkins tests have passed.

RELEASE NOTE: It is recommended not to use the full spectral bin microphysics until it is updated. Use the fast version instead.

share/module_check_a_mundo.F

@@ -2555,6 +2555,21 @@ END FUNCTION bep_bem_ngr_u
  END IF
  END DO
 
+!-----------------------------------------------------------------------
+! Stop the model if full_khain_lynn or mp_physics = 32 is selected
+!-----------------------------------------------------------------------
+ DO i = 1, model_config_rec % max_dom
+ IF ( .NOT. model_config_rec % grid_allowed(i) ) CYCLE
+ IF ( model_config_rec%mp_physics(i) .eq. full_khain_lynn) THEN
+ oops = oops + 1
+ wrf_err_message = '--- ERROR: full bin spectral microphysics should not be used '
+ CALL wrf_message ( wrf_err_message )
+ wrf_err_message = '--- ERROR: use fast version instead (mp_physics=30)'
+ CALL wrf_message ( wrf_err_message )
+ count_fatal_error = count_fatal_error + 1
+ END IF
+ ENDDO ! Loop over domains
+
 !-----------------------------------------------------------------------
 ! DJW Check that we're not using ndown and vertical nesting.
 !-----------------------------------------------------------------------