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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.579 by jmc, Sun Nov 6 23:04:38 2005 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o Allow to apply AB on T,S rather than on AB(gT,gS):
8  o moved ptracer ctrl index 17 -> 32   - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
9     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
10       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
11     - need a "clever" read_pickup to restart from the other AB formulation
12    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
13    o remove some unused variables (reduces number of compiler warnings)
14    
15    checkpoint57w_post
16    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
17                 fix the singleCpuIO RS version of MDSWRITEFIELD
18       and add a WARNING if using globalFiles=T with multi-processors.
19    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
20      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
21    o tracer advection scheme:
22      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
23       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
24       was not very convenient).
25      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
26       (further tests needed for the implicit DST & Flux-Limiter schemes).
27    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
28      and sRef for convenience, handy, when you want to initialize
29      ptracers in a large domain with a constant non-zero value. Also,
30      untangle ptracers_init.F a little.
31    
32    checkpoint57v_post
33    o change dome exp. to use variable viscosity in side-drag terms.
34    o remove all the files from the cfc_offline test since they are now
35      incorporated into tutorial_cfc_offline which has been producing
36      identical results for a few days of testing
37    o add new parameter: sideDragFactor to enable half-slip-side BC
38      and change side-drag S/R to use viscosity from mom_calc_visc
39      (can switch back by setting sideDragFactor=0.); affects results at
40      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
41       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
42    o vorticity & strain are now computed without masking, to account for
43      no-slip-side BC in variable viscosity calculation ; mask is applied
44      anyway later on, before computing advection/coriolis terms.
45    o modify exp4 to test new obcs support for reading from external files
46      and for passive tracers
47    o fix behavior of ptracers_monitor when monitor output is written to a
48      netcdf-file; still not independent of monitor.F (writes in the same
49      file).
50    o change default value of tRef (put a uniform, meaningful value for ocean
51      & atmos) and initialize sRef (was missing, as Martin mentioned).
52    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
53      to be proportional to enstrophy dissipation length.  Thus,
54       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
55      This is now consistent with Smagorinsky and with the manual.
56    
57    checkpoint57u_post
58    o OBCS and PTRACERS: add open boundary support for passive tracers
59      - either use homogenous (pseudo) v.Neumann conditions or prescribe
60        OB-values from file; this is not different from the way theta and salinity
61        are treated
62      - however, Orlanski-radiation conditions are not supported, and the model
63        will stop if you use pTracers and Orlanski at the same time.
64      - beefed up the rountine obcs_external_fields_load: now only those open
65        boundary values are overwritten with values from files for which there
66        are really files, otherwise the OB-fields remain untouched. This makes
67        it possible to use different OBs at different ends of the domain (as
68        with EXF)
69    o reduce number of exch calls in shap_filt (s2).
70    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
71      truncation level) 4/5 MLAdjust test results (11&12 digits match).
72    
73    checkpoint57t_post
74    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
75    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
76      same truncation, independent of the face number: affects affects several
77      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
78    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
79      note that biharmonic viscosity + no-slip was not tested in any experiment.
80    o fix bug in non-linear free-surf side-drag ; generate new output for
81      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
82    o make mnc honor the writeBinaryPrec flag for most kinds of output
83    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
84    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
85      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
86    o add brackets in multi-terms sum to get same truncation, independent of
87      the face number (manage to get exactly same value of gU,gV at the cs-edge)
88      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
89    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
90      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
91      a maximum grid-scale Reynolds number.  Also, changes all length calculations
92      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
93      Suggested values of viscosity parameters found in mom_calc_visc.
94      Many new viscosity diagnostics available.
95    
96    checkpoint57s_post
97    o Add clearing-house for viscosity calculations, mom_calc_visc and
98      correct numerous bugs in LeithD and Smagorinsky discretizations.  
99      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
100      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
101      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
102      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
103      The Strain-Tension form is now called with useStrainTensonVisc=.true.
104      ViscAhStrain and viscAhTension are now retired.
105    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
106    o In response to JMC's bug report, genmake2 now ignores any soft-links
107      that it finds in the *current* directory when searching for files.
108      Soft-links found in any other source directories will still work as
109      they did before.
110    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
111      a C routine to unlimit the stack size
112    o mnc-ify pkg/aim snapshot vars
113    o mnc-ify pkg/land as requested by Daniel
114    o various changes to mnc including:
115      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
116      - output can now be grouped so that all files within a group
117          change the ITER portion of their names in lock-step together
118      - can now read ("global") PER-FACE (in addition to PER-TILE) files
119          and works with both EXCH1 and EXCH2 (but needs more testing)
120      - writing works for all verification test cases w/ g77 on Linux
121    
122    checkpoint57r_post
123    o make MNC variable initialization happen earlier
124    o add diagnostics for (almost) each term of the momentum Eq.
125    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
126    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
127    o remove MINIMAL_TAVE_OUTPUT option ;
128      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
129    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
130      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
131    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
132    o add time-dependent SST, SSS control
133    o cost terms in ecco/ modularized (new cost_generic.F)
134    o cost_averages routines are modularized (new cost_averagesgeneric.F)
135    o new infrastructure for seaice model vs. obs misfits in seaice/
136      * driver from the_main_loop.F is seaice_cost_driver.F
137      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
138      * gradient check in Exp. 6a of natl_box_adjoint/
139    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
140      (see README file)
141    
142    checkpoint57q_post
143    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
144    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
145      - bug was reported by Jean-Michel and Ian Fenty
146    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
147      update exp. cpl_aim+ocn output.
148    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
149      Needed for high-res. runs with large global files
150      to be able to limit tapelev size
151    o Changed some tests for adjoint:
152      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
153      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
154      * global_ocean.90x40x15/ back to default 3-level checkpointing
155    o Modifications to enable scripted COMMON to MODULE conversion
156      * verification/OpenAD/code/ has necessary scripts and description;
157      * converts, compiles and runs successfully;
158    
159    checkpoint57p_post
160    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
161    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
162      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
163    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
164    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
165      (was already the case for dissipation with mom_vecinv,
166       and also the case for grad.PhiHyd when staggered-timeStep)
167      This will allow to put dissipation out-off the AB time-stepping.
168     Unfortunately, affects truncation error. Update output of exp. that "fails"
169      (cg2d matching number) and leave the others for later: front_relax(10),
170      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
171      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
172    
173    checkpoint57o_post
174    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
175      (2) its ready to be documented during the 20050801 DocFest
176    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
177      for ideal_2D_oce and lab_sea on linux_ia32_g77
178    o set to #undef CTRL_SET_OLD_MAXCVARS_30
179      in global1x1_tot/code_seaice_adj to access indices 32, 33
180      (worth another tag)
181    
182    checkpoint57n_post
183    o adding precip control xx_precip 32
184    o adding swflux control xx_swflux 33
185    o Replacing 10 forcing penalty cost routines by 1 generic.
186    o Implementing partitioning in time-mean and variable adjustment
187      for atmos. state.
188    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
189  o in natl_box_adjoint:  o in natl_box_adjoint:
190    * updated: results_bulk/    * updated exp 1 to 10
191    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
192    o updated global1x1/*_seaice_adj/
193      to incorporate latest changes
194    o enable useSingleCpuIO for mdsio vector routines
195      (applies in particular to tapelev I/O)
196    o removed inefficient K-loop in all active_file*control*.F
197    
198  checkpoint57m_post  checkpoint57m_post
199  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)

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