Minutes of the code management group meeting 2017-10-19
Teleconference Details
Thursday 19th October 2017, 10am - 12noon BST
- UK Landline: +44 (0)1223 761376 (x61376 from an internal University of Cambridge phone)
- Participant passcode: 146205
Present
Met Office: Fiona O'Connor, Jane Mulcahy, John Hemmings, Mohit Dalvi, Alan Hewitt, Marc Stringer
Cambridge: Luke Abraham, Scott Archer-Nicolls, James Keeble
Leeds: Mark Richardson, Graham Mann
Reading:
Lancaster: Michael Hollaway
Edinburgh:
UEA: Marcus Koehler
NIWA: Olaf Morgenstern, Fraser Dennison
CSIRO:
Apologies: Oliver Wild, Nicolas Bellouin, Ashok Luhar, Paul Griffiths
Actions from this meeting
Minutes
Actions from the Last Meeting (LA)
Minutes of the code management group meeting 2017-07-14
One off actions
- (ongoing) GM to check 8.4 versus 7.3 (and possibly vn8.4 vs 10.x) GLOMAP-mode code and report any missing bug fixes on the bugfix page.
- (ongoing) FOC to incorporate Bug #35 and others into dry deposition work. FOC to draft document that will cover what the new deposition scheme will do
- (ongoing) LA to migrate PUMA UM tickets to MOSRS - see table below
- (new) ALL to check through this table and comment on whether the tickets needs to be ported or not. Deadline 2017-07-28
- (new) LA to open tickets for all changes that still require a ticket
- (ongoing) JM,BJ,NB to discuss incorporation of Nicolas' RADAER description into UKCA (or separate UMDP). JM to take lead.
- (ongoing) FOC to open ticket + Bugfixes Table entry related to 'Unable to calculate tropopause' warnings
- (ongoing) FOC to recommend at next Exec meeting a policy of allowing only CMG to (certify and) distribute any UKCA configurations for science purpose.
- (new) LA (& others who are interested) to look into how to re-organise the UKCA panel (e.g. into sub-panels)
- (new) LA to organise a follow-up meeting of interested parties on the UKCA panel re-organisation
- (new) MD to collate all UKCA parameters into
ukca_constants
in advance of removing duplicates already available in the UM - (new) LA to add comments on
rafeps
into #368 - (new) FOC to close #2358 (Delete 2D photolysis scheme in UKCA)
- (new) MD to take ownership of #142 (Remove old emissions system from UKCA)
- (new) FOC to take ownership of #2356 (Delete older dry deposition scheme in UKCA)
- (new) FOC to take ownership of #1507 (Remove Backward Euler Standard Tropospheric Chemistry)
- (new) AH to take ownership of #2373 (quick method for calculating wet volume redundant)
- (new) LA to take ownership of #1505 (Clean up ukca_strat_update)
- (new) JM to clarify with CJ regarding "Wet oxidation of SO2 in GLOMAP"
- (new) ALL to note code which is redundant
- (new) AH to scope out reducing repetition of mode definitions in GLOMAP
- (new) OM to work on the chemistry scheme code restructuring for vn10.8
- (new) LA to update Bugs table following discussion, closing tickets where appropriate
- (new) FOC to send LA RAQ testing jobs information
- (new) MD to set up TS2000 free-running nudged jobs at vn10.8
- (new) LA to add UKCA wiki page on using UKCA on the Virtual Machine
- (new) LA to create a doodle poll for October after the date of the vn10.9 code freeze
Standing actions
- (ongoing - standing item) CMG to monitor list of bugs and circulate between group for owners.
- (ongoing - standing item) At CMG future meetings there should be included an appendix listing the open bugs. If a ticket is included it is not an open bug (as the owner of ticket is person doing lodging).
- (ongoing - standing item) ALL with access to keep monitoring ukca_bugs email list.
- (ongoing - standing item) ALL to think about if code changes will change KGO and let systems team know in good time. This should be a standard part of our working practice.
- (ongoing - standing item) ALL to review and remove obsolete code
Redundant Code (LA for NS)
Code Proposed for Deletion
# | Description | Ticket | Remarks | Status | Owner |
---|---|---|---|---|---|
1 | Old emissions code (that which uses ancil files) | #142 | None | Completed | Mohit Dalvi |
2 | Old dry deposition scheme | #2356 | None | PROPOSED | Fiona O'Connor |
3 | ukca_volume_mode.F90 - quick method for calculating wet volume is not used since iwvolmethod is hard coded to equal 2. | #2373 | None | Complete | Alan J Hewitt |
4 | 2D photolysis | #2358 | None | Do not remove code | Fiona O'Connor |
5 | ukca_strat_update.F90 - relax_ozone | #1505 | None | PROPOSED | Luke Abraham |
6 | Backward Euler Standard Tropospheric Chemistry | #1507 | None | PROPOSED | Fiona O'Connor |
7 | Wet oxidation of SO2 in GLOMAP | None | None | PROPOSED | Colin Johnson |
- Question: Should ALL schemes using the backward Euler solver be proposed for redundancy?
FOC: long-term yes. Target Offline-oxidants first. OpenMP work will proceed.
MS OpenMP code has not been lodged. Has code for FJX and Chemistry_Ctl (lat/lon slice).
new action: FOC to arrange meeting between FOC, MR, MS, LA (& possibly other) to sit down and decide a plan to move forward, before new person starts.
Depreciated Code
# | Description | Ticket | Remarks | Status | Owner |
---|---|---|---|---|---|
1 | Deprecated UKCA netcdf attribute options | #2513 | 'emission_type', string type attributes no longer recomeneded. Need some time for most new code to adopt these | DEPRECATED | Alistair Sellar |
Bugs/Bugfixes (LA)
Open Bugs
# | Description | Ticket | Owner | Status/ Updates | Comments from previous meeting | Comments from this meeting |
---|---|---|---|---|---|---|
31 | FP exceptions in asad_sparse_vars or asad_spimjmp |
#368 (MOSRS) | Nick Savage | vn10.x seems to be better | leave open | leave open |
35 | Error in labelling: Surface resistance <--> stomatal resistance ? | MOSRS #1409 | Fiona O'Connor | folded into DD work | leave open & see above | leave open |
57 | Incorrect logic for DMS anciliaries required | #756 (MOSRS) | Nick Savage | trivial. Might close as wontfix, but might want to do in RAQ | leave open | possibly close: JM to check impact |
72 | UKCA Dry Deposition: Surface resistance values not set for some species |
#1250 | Alan Hewitt? | leave open but there is a way forward | leave open | |
74 | Bug in ukca_tropopause with definition of PV tropopause | #1283 | Steven Hardiman | Change ownership? Fix is separate from #75 | leave open. FOC did try to lodge, but breaks KGO. Simple fix but with big changes. | leave open |
75 | Bug in STE fluxes | #1367 | Fiona O'Connor | could be endgame | leave open. even with fix, these are still wrong | leave open still not sure what is going on |
87 | Possible issues with YSTORE in UKCA_CHEMISTRY_CTL. | UM#3245 | Colin Johnson/ Luke Abraham |
leave open | leave open | |
88 | Potential FastJX Scattering Bug | UM#3261 | David Wade/ Luke Abraham |
In code review for vn10.9 | leave open FOC to send LA RAQ jobs information |
close when ticket is closed |
90 | Extremely high/low NOy concentrations | UM#3400 UKESM:#469 |
Mohit Dalvi/ Luke Abraham |
In code review for vn10.9 | close when ticket is closed |
new action: MS to add bug in offline oxidants to bugfixes table.
Strategy for next UKCA Release Job (LA/MD)
MD has the free running job. Adding a nudging job. Should we have an AMIP or a TS2000? Aerosol are transient, chemistry are decadal means.
- 3400 has a potential AMIP, but using climatological emissions.
LA and MD to talk offline.
Time-varying emissions still some weeks away.
Highlights from vn10.9 (LA)
PLEASE REMEMBER TO INCLUDE THE KEYWORDS: UKCA & SC0138
vn10.9 UKCA tickets
UMPB September 2017 Highlight Report
- Removal of old emissions system #142
- Correct NaCl density using temporary logical #2405
- Solar-cycle in photolysis #2587
- Make number of aerosol components flexible #2788
- AQUM fixes for ammonium nitrate #2986 & #3174
- Column-call for NR solver #3209
- FastJX bugfix #3261
- Fixes to rose-stem #3267
- Re-organisation of NR chemistry listings #3326
- Fix NAt PSC sedimentation um:#3400 (see below)
"Highlight": NOy events
See um:#3400 and UKESM:#469.
Targets for vn11.0 (and beyond) (LA)
- Update from CSIRO: We have almost finalised the oceanic ozone dry deposition parameterisation work and at some point will need some guidance as to if and when this can be incorporated into the Trunk. See point 2 from the last meeting.
Tickets currently targeted for UM11.0 in Trac
Ticket | Summary | Owner | Comments from this meeting |
---|---|---|---|
#100 | PM10 and PM2.5 diagnostics for MODE | johnhemmings | |
#1250 | UKCA dry deposition: surface resistance values not set for some species | alanjhewitt | |
#1703 | Update appropriate UMDPs with regard UKCA-mode aerosol and interactions | janemulcahy | |
#2086 | Time updating for glomap climatology | alanjhewitt | |
#2134 | UKCA-GLOMAP Nx1 PE set-up does not bit-compare with others | mohitdalvi | |
#2532 | Review of option codes associated with UKCA burden diagnostics when running with BE solver | fionaoconnor | |
#2689 | Enable coupling of GLOMAP-MODE Aerosol to FAST-JX photolysis. | michaelhollaway | |
#2741 | Addition of new diagnostic for the dry deposition flux of nitrogen | fionaoconnor | |
#2742 | Addition of new diagnostic for the wet deposition flux of nitrogen | fionaoconnor | |
#2814 | Allow UKCA Chemistry to work with aerosol climatologies | lukeabraham | |
#2898 | Input CO2 concentrations into UKCA when interactive CO2 is operational | colinjohnson | |
#3025 | Add functionality to use NetCDF GLOMAP-mode climatology fields to generate fields required by ACTIVATE | alanjhewitt | |
#3028 | Improve STASH section references related to UKCA components. | mohitdalvi | |
#3127 | Investigate KGO differences in um_n48_ukca_eg app using GNU on the Cray | lukeabraham | |
#3289 | Removal of Backward Euler Std tropospheric chemistry | fionaoconnor | |
#3290 | Removal of old dry deposition scheme using prescribed deposition velocities | fionaoconnor | |
#3292 | Consolidate constant variables used by UKCA | mohitdalvi | |
#3367 | Removing transport of peroxy radical tracers in Strattrop (CHeST) | scottarchernicholls | |
#3384 | Add UKCA processor decomposition tests to rose-stem | lukeabraham |
Tickets currently targeted as Hopefully
Training (LA)
Registration deadline: 3rd November!
LA to look into recording lectures
AOB/DNM (LA)
Date of next meeting (LA)
vn11.0 Code Review deadline is the 9th February 2018, to released on (or before) 28th February 2018.