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revision 1.1821 by mlosch, Fri Feb 8 07:56:45 2013 UTC revision 1.1891 by jmc, Thu Jul 4 13:44:56 2013 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint64j (2013/07/04)
8    o pkg/offline:
9      - to enable the use of other features with pkg offline (e.g., obcs),
10        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
11      - comment out "allowFreezing" (now active) in 2 offline testing exp.
12    o pkg/exf ALLOW_RUNOFTEMP
13      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
14      - added RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
15      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
16    o pkg/atm_phys:
17      - allows to add some damping on uVel,vVel (strength only function of k).
18    o verification, ad-tests:
19      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
20        global_ocean_ebm and offline_exf_seaice.thsice.
21    o verification/halfpipe_streamice:
22      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
23        flux input boundary conditions to be ignored; a fix for this bug changed
24        verification results for forward test.
25      - add adjoint test.
26    o pkg/ptracers:
27      - allow to restart without SOM pickup (resetting SOM to zero).
28    o pkg/gmredi:
29      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
30      - It uses mixing length theory and suppression by steering level effects to
31        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
32        to JPO, for more details).
33      - It also uses the diffusivity to calculate an eddy induced streamfunction
34        based on a PV closure (rather than a buoyancy closure as in GM).
35      - New files added to pkg/gmredi:
36        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
37          induced overturning streamfunction (called from gmredi_calc_tensor)
38        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
39          for use in gmredi_k3d
40        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
41          the eddy diffusivity
42    
43    checkpoint64i (2013/06/18)
44    o pkg/cheapaml:
45      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
46        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
47        with pkg/cheapaml.
48    o utils/python: add subpackage for cubed sphere function, first example is
49        simple cs.pcol to plot 2D fields on a map
50    o pkg/streamice:
51      - This is a new package in MITgcm, which solves dynamic equations for ice
52         sheets and ice streams
53      - At the moment it is independent of atmosphere/ocean dynamics, or any
54        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
55        ed that this will change)
56      - There is a new verification exercise that tests it, halfpipe_streamice,
57        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
58        rectangular embayment
59      - halfpipe_streamice is forward-only for now, will have TAF test soon
60      - for questions, email dgoldber@mit.edu
61    o pkg/thsice:
62      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
63        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
64      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
65         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
66      - allow precip from pkg/cheapaml to make snow over seaice.
67    o pkg/cfc:
68      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
69      - remove atmos CFC 2-D arrays from common bloc (now local variables)
70      - change some hard-coded constant to run time parameter for reading and
71        and interpolating atmospheric CFC ; keep same default as previously.
72      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
73      - put arguments in standard order: myTime, myIter, myThid
74      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
75        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
76      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
77      - new routine to print summary of CFC params and check for consistency.
78    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
79      similar to thsice_advdiff.
80      Note that for the B-grid case the routine parameters uc/vc are overwritten.
81    o pkg/cfc:
82      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
83        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
84      - fix interpolation of atmphspheric CFC between Sorthern and Northern
85        hemisphere value.
86    o pkg/seaice:
87      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
88    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
89                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
90      - requires an additional time level that is stored in the pickup
91      - you can start with AB2 from a pickup without this time level with
92        pickupStrictlyMatch = .false.
93    
94    checkpoint64h (2013/05/26)
95    o pkg/cheapaml:
96      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
97        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
98      - consistent treatment of uWind,vWind location: assume everywhere in
99        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
100        (Note: was already the case for Tair,Qair advection);
101        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
102      - compute diabatic forcing only in the interior (excluding overlap regions)
103      - fill in array "Qsw" (for short-wave heating);
104      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
105        before any update (consistent with MITgcm state var diagnostics);
106      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
107        non periodic ; + adjusted for uWind,vWind (C-grid).
108    o pkg/seaice:
109      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
110        add explicitly pkg/exf in experiments that currently use pkg/seaice.
111      - allows to compile pkg/seaice without pkg/exf.
112    o tools/OAD_support:
113      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
114        of array "ourStepOf" in function rvNextAction (revolve.F90).
115    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
116      - change pkg name (to be used with other atmospheric physics pkg)
117        but by-pass CVS when making the new pkg so that we keep the CVS history.
118    o pkg/offline:
119      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
120        (previously called from pkg/dic_surfforcing_init.F)
121    o model/src:
122      - re-order sequence of calls within packages_init_variables.F, using
123        standard order, except for:
124         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
125         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
126    o new pkg: atm_phys
127      - add entry point and source code (previously in contrib
128          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
129        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
130      - re-order sequence of calls within packages_readparms.F,
131         packages_init_fixed.F and packages_write_pickup.F
132        (but skip packages_init_variables.F because of TAF issues).
133      - update contrib/*/atm_gray/ experiment.
134    o pkg/seaice (ITD code):
135      - simplify and fix the writing of pickup-files for ITD case
136    o pkg/seaice (ITD code):
137      - introduce floe size dependent lateral melt for ITD case;
138      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
139      - update seaice_itd experiment main output.
140    o pkg/thsice:
141      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
142        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
143        changed accordingly pkg/atm2d.
144    
145    checkpoint64g (2013/05/01)
146    o pkg/exf ALLOW_RUNOFTEMP
147      - if defined,  river and glacier runoff temperature can be read-in from
148        runoftempfile; runoftempfile needs to have same format as runofffile
149    o pkg/thsice (& pkg/bulk_force):
150      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
151        for energy content of Precip + RunOff & Evap (like with pkg/exf).
152      - change computation domain to always be the interior (without overlap).
153      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
154    o verification/tutorial_global_oce_biogeo:
155      - add preliminary OpenAD setup (still has problems)
156    o pkg/seaice:
157      - turn some parameters for choosing the convergence criterion of
158        the inexact Newton method (JFNK) into runtime parameters for convenience
159      - clean up seaice_calc_viscosities.F: remove/retire two options for
160        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
161        the results of lab_sea/input because a division has been replaced by
162        a multiplication with the reciprocal (sumNorm)
163      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
164        convergence of solver (changes results, of course), and to test some
165        new features
166    o model/src:
167      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
168      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
169      - move forcing adjustment (balancing surface forcing) in specific S/R
170        where might also be applied exchanges (if needed) to forcing arrays.
171    o pkg/shelfice:
172      - allow to specify the Ice-Shelf mass per unit area (instead of
173        shelficeLoadAnomaly) and do the conversion from one to the other
174      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
175        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
176        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
177        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
178      - update isomip experiment forward output (get machine truncation error
179        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
180    o verification/offline_exf_seaice:
181      revise data.seaice in input.thermo and input_ad and update results accordingly
182        HO = 0.2, SEAICE_areaLossFormula = 2,
183        SEAICE_growMeltByConv = .TRUE.,
184        SEAICE_doOpenWaterMelt = .TRUE.,
185      Improve consistency with input.thsice and fix the spurious 500m ice corners
186    o verification/global_ocean.cs32x15:
187      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
188        in icedyn (thsice+seaice-dyn) test and update output.
189    o verification/offline_exf_seaice:
190      - adjust list of tested variables (with testreport) and update
191        standard test output with better slection of monitored fields.
192    o pkg/cd_code:
193      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
194        experiment lab_sea.hb87
195    o tools/genmake2:
196      - change default makedepend from the system default to tools/xmakedepend:
197        When no makedepend is specified, select tools/xmakedepend it the test pass,
198        otherwise select the system default (if exist and pass the test) or
199        try to build cyrus-makedepend ; stop if none of the 3 works.
200    o pkg/exf & pkg/thsice:
201      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
202        for energy content of Precip + RunOff & Evap. Assumes:
203       1) Rain has same temp as Air.
204       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
205       3) Run-Off comes at the temp of surface water (with same Cp)
206       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
207        put directly into Latent Heat flux & should use water-vapor heat capacity.
208       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
209        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
210    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
211        (compile when SEAICE_ALLOW_JFNK is defined)
212    o pkg/thsice:
213      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
214        implementation): move THSICE_AVE call after the advection (called directly
215        from thsice_do_advect.F).
216    o verification/global_ocean.90x40x15 and OpenAD:
217      New experiment for OpenAD is identical to the one in input_ad except that
218        multiDimAdvection=.FALSE.,
219      There is still an issue with this.
220    o pkg/thsice:
221      - account for ice velocity (ocean relative velocity) in turbulent heat flux
222        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
223        and offline_exf_seaice (main test).
224    
225    checkpoint64f (2013/03/31)
226    o verification/OpenAD:
227      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
228    o verification/isomip, pkg/shelfice and OpenAD:
229      - add OpenAD setup to this exp and make shelfice package work with OpenAD
230    o verification/tutorial_global_oce_biogeo:
231      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
232    o verification/offline_exf_seaice:
233      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
234    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
235      - add OpenAD setup to this exp and make ptracers package work with OpenAD
236    o pkg/seaice/seaice_evp.F:
237       mask the asymmetric contribution of the ice-ocean stress (when
238       the turningAngle is non-zero) over open water to avoid stripes
239       in the EVP-solutions after many EVP-substeps. This does not change
240       the verification experiment (because turningAngle=0 in that experiment),
241       but will affect other EVP solutions with turningAngle.ne.0
242    o verification, AD & TLM output:
243      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
244        additions and multiplications which affect results at machine truncation
245        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
246        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
247        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
248        digits of matching.
249    o pkg/seaice:
250       modify lsr-algorithm so that it vectorizes AND converges by using a
251       "zebra" method: split vector loop into two with step size 2; this
252       solves a general convergence problem for the JFNK solver on a vector
253       computer. It has the potential to even improve convergence for
254       non-vector machines, but it does change the results so it is turned
255       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
256       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
257    
258    checkpoint64e (2013/03/05)
259    o pkg/ecco and several verification experiments:
260       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
261       from ecco package, and revert to unified routine in model/src/
262       Adjust verification experiments accordingly, especially gloal_oce_llc90
263       Should conclude long-standing work by Gael to reconsile the_main_loop with
264       ECCO and will enable OpenAD's revolve loop in ECCO setup.
265    o pkg/generic_advdiff:
266      - implement compressible flow method for multi-dim advection (similar to
267        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
268        TAF generates many recomputations) to use it; no yet coded with implicit
269        vertical advection.
270      - change experiment advect_cs (new output) and advect_xy (same output)
271        to test compressible flow multi-dim advection.
272    o pkg/generic_advdiff:
273      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
274        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
275    o pkg/seaice:
276      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
277        bug affects two verification experiments (lab_sea and lab_sea.hb87),
278        recover old (wrong) results by setting noSlipFac = 2. in
279        seaice_calc_strainrates.F;
280      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
281      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
282        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
283      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
284    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
285      - new subroutines seaice_lsr_tridiagu/v
286      - introduce loop bounds i/jmin/max to be able to use a restricted
287        additive Schwarz method, but not used for now.
288      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
289      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
290    o OpenAD support
291       Reorganize S/R call for overall time-stepping loop to facilitate
292       OpenAD revolve loop replacement
293       (new S/R main_do_loop.F)
294    o model/src:
295      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
296      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
297        ADAMS_BASHFORTH2.
298    o pkg/cheapaml:
299      - add new parameter (default=F, same as before) to disable full domain
300        (including land) periodicity in X & Y dir.
301      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
302        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
303        into single S/R CHEAPAML_TIMESTEP.
304    
305    checkpoint64d (2013/02/17)
306    o pkg/monitor (angular momentum):
307      - do not add Eta contribution to the total AM if using rigid-lid;
308      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
309      - horizontal discretisation: compute Zonal wind contribution separately for
310        each component (instead of from cell centered averaged) and use the 4
311        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
312      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
313        FreeSurf) if using vectorInvariant momentum.
314    o model/src (horizontal grid):
315      - move initialisation of all horizontal grid arrays to null value
316        from specific horizontal grid S/R to main S/R INI_GRID;
317      - add 2 new arrays to project model C-grid velocity on to zonal direction
318        (similar to AngleCosC & -AngleSinC but at U and V point location) and
319        compute them in S/R CALC_GRID_ANGLES.
320    o pkg/seaice: replace a hard coded parameter by a runtime parameter
321        SEAICE_JFNK_tolIter
322    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
323        preconditioner for JFNK (run LSR into the overlaps as far as possible,
324        i.e OLx/y-2, but overwrite the solution in the overlaps)
325      - extend loop range in seaice_calc_viscosity
326      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
327      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
328      - slightly modify loops in tridiagonal solver lsr-preconditioner
329      - by default remove the extra exchange in seaice_preconditioner with a
330        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
331      - modify offline_exf_seaice so that old results without RAS are reproduced
332        for output.dyn_jfnk.txt
333      in seaice_fgmres.F (unrelated to RAS)
334      - add a cpp-flag option for a re-ordered mapping (potentially more
335        efficient), but because this changes the results, turn it off by
336        default
337      - replace the save statement by local common blocks
338    o utils/matlab:
339      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
340      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
341        instead of local script "load_cs.m".
342    o pkg/seaice:
343      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
344        to the scalarProductMetric and the unrolling. By chance this does not
345        change the verification experiment, because of the particular domain
346        decomposition
347  o pkg/diagnostics:  o pkg/diagnostics:
348    - change default missing_value from UNSET_RL to -999.    - change default missing_value from UNSET_RL to -999.
349  o pkg/layers: improve vectorization of layers_fluxcalc.F  o pkg/layers: improve vectorization of layers_fluxcalc.F
350    - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu    - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
351      time spent in this routine by more than a factor of 3 on an NEC-SX8      time spent in this routine by more than a factor of 3 on an NEC-SX8
352    - step 2: replace search algorithm by a bisection algorithm found in    - step 2: replace search algorithm by a bisection algorithm found in
353      Press et al. Numerical Recipes in Fortran. This algorithm can be      Press et al. Numerical Recipes in Fortran. This algorithm can be
354      vectorized and finds the correct bin in approx. log2(Nlayers) steps.      vectorized and finds the correct bin in approx. log2(Nlayers) steps.
355      For now, use this algorithm only for TARGET_NEC_SX defined.      For now, use this algorithm only for TARGET_NEC_SX defined.
356    - moved the search algorithm into a separate subroutine, that is kept    - moved the search algorithm into a separate subroutine, that is kept

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