Start making automatic tests compatible with old stella releases.

AUTOMATIC_TESTS/numerical_tests/common_input_files/other_knobs.in

@@ -2,9 +2,6 @@
 &dissipation
   hyper_dissipation = .true.
 /
-&time_advance_knobs 
-  explicit_option = 'rk2'
-/
 &layouts_knobs
   vms_layout = 'vms'
   xyzs_layout = 'yxzs'

AUTOMATIC_TESTS/numerical_tests/common_input_files/short_time_trace_nstep10.in

@@ -1,6 +1,17 @@
 
+&time_advance_knobs
+  explicit_option = 'rk2'
+/
 &knobs
+  delt = 0.01 
+  nstep = 10
+  fapar = 0.0
+  fbpar = 0.0
+  fphi = 1.0
+/
+&parameters_numerical
   delt = 0.01 
   nstep = 10
   print_extra_info_to_terminal = .false.
+  explicit_option = 'rk2'
 /

AUTOMATIC_TESTS/numerical_tests/common_input_files/short_time_trace_nstep100.in

@@ -0,0 +1,19 @@
+
+&time_advance_knobs
+  explicit_option = 'rk2'
+/
+&knobs
+  delt = 0.01 
+  nstep = 100
+  fapar = 0.0
+  fbpar = 0.0
+  fphi = 1.0
+  rng_seed = 1
+/
+&parameters_numerical
+  delt = 0.01 
+  nstep = 100
+  print_extra_info_to_terminal = .false.
+  explicit_option = 'rk2'
+  rng_seed = 1
+/

AUTOMATIC_TESTS/numerical_tests/common_input_files/write_all_diagnostics.in

@@ -15,8 +15,6 @@
   write_radial_moments = .true.
   write_fluxes_kxkyz = .true.
   flux_norm = .true.
-  write_apar_vs_time = .true. 
-  write_bpar_vs_time = .true.
 /
 &diagnostics 
   nsave = 10

AUTOMATIC_TESTS/numerical_tests/test_5_diagnostics/miller_nonlinear.in

@@ -8,6 +8,7 @@
 !include common_input_files/init_distribution_noise.in
 !include common_input_files/write_all_diagnostics_nwrite10.in
 !include common_input_files/other_knobs.in
+!include common_input_files/short_time_trace_nstep100.in
 
 &physics_flags
   nonlinear = .true.
@@ -21,9 +22,4 @@
   nmu = 2 
   nvgrid = 3  
 /
-&knobs
-  delt = 0.01  
-  nstep = 100
-  print_extra_info_to_terminal = .false.
-  rng_seed = 1
-/
+

STELLA_CODE/parameters/update_input_file.f90

@@ -629,13 +629,16 @@ subroutine backwards_compatibility_knobs()
          logical :: maxwellian_inside_zed_derivative_new, mirror_semi_lagrange_new, mirror_linear_interp_new
          logical :: fields_kxkyz_new, mat_gen_new, mat_read_new, ky_solve_real_new, print_extra_info_to_terminal_new
          character(20) :: delt_option_new, lu_option_new
+
+         ! Old parameters which have been deprecated for a while
+         real :: fapar, fbpar
 
          ! Local parameters for this subroutine
          logical :: old_nml_exist
          logical :: double_definitions
 
          ! Old namelists 
-         namelist /knobs/ fphi, delt, nstep, tend, delt_option, lu_option, autostop, &
+         namelist /knobs/ fphi, fapar, fbpar, delt, nstep, tend, delt_option, lu_option, autostop, &
               avail_cpu_time, delt_max, delt_min, cfl_cushion_upper, cfl_cushion_middle, cfl_cushion_lower, &
               stream_implicit, mirror_implicit, drifts_implicit, use_deltaphi_for_response_matrix, &
               maxwellian_normalization, stream_matrix_inversion, maxwellian_inside_zed_derivative, &