Minutes of the code management group meeting 2016-01-12

Code management group minutes

Present

Nick Savage (NS), Fiona O'Connor (FOC), Alan Hewitt (AH), Nicolas Bellouin (NB), Mark Richardson (MR), Zak Kipling (ZK), Colin Johnson, Paul Griffiths (PG)

Apologies: Luke Abraham (LA), Alex Archibald (AA), Jane Mulcahy (GM)

Actions from this meeting

Standing actions

1. (ongoing - standing item) CMG to monitor list of bugs and circulate between group for owners.
2. (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).
3. (ongoing - standing item) JM to continue to link/send powerpoint results (re: GA7.0), as new configurations released and link/put files on UKCA wiki.
4. (ongoing - standing item) ALL with access to keep monitoring ukca_bugs email list.
5. (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.

Teleconference Numbers

• UK Freefone: 0800 9171956
• Participant passcode: 89264837 then #

Agenda

1. Actions from the last meeting (2015-09-18)
2. GA7.0/UKESM1 update
3. UKCA Rose suites at UMvn10.3
4. Targets for vn10.4 code freeze
5. Bugfixes
6. Bugs reported to CMS
7. LFRic
8. A.O.B./D.N.M.
9. Date of next meeting

Minutes

Actions from 2015-09-18

1. (ongoing) JM/GM to talk offline regarding improvements.
2. (ongoing) JM to open ticket. JM to check which ticket this referred to.
3. (ongoing) CJ to email LA re problems with SO2 diagnostics for emissions. Issues related to using ASAD diagnostics package.
4. (ongoing) CJ to put branch on PUMA email CMG location of branch to check details.
5. (ongoing) GM check 8.4 versus 7.3 GLOMAP-mode code and report any bug fixes the bugfix page.
6. (ongoing) AA GLOMAP-mode coupling to FJX. AA to see if Paul Griffiths can be asked to do this.
7. (ongoing) Incorporate Bug #35 into dry deposition work - Federico Centoni (FC) wants to do some sensitivities - hold off until FCs assessment - still waiting.
8. (ongoing) ALL to migrate tickets over to the shared repository (MOSRS). Some people have done this, but not all ticket migrated yet.
9. (ongoing) NS to continue with lodging ticket #368 quick fix. A proposed fix to the value of RAFEPS allowing just one line to have a scaling factor on a namelist has been developed but NS is concerned about implementing it it due to his lack of understanding the code. Implementation will be pending the next action.
10. (ongoing) LA to contact Oliver Wild regarding NR solver. In particular to ask advice on the use of the increased value of rafeps to prevent model failures. How safe is this, and is there a better solution?
11. (in progress) Bug #38: GM to take on lodging this on the trunk.
12. (ongoing) JM to contact Alistair Sellar and check on criticality of bug #38 (volcanic emissions) for UKESM1.
13. (ongoing) LA to check doc for NVOC factor and open ticket to remove it from code.
14. (ongoing) FOC to raise with Ben Shipway (as well as MH from previous LFRic meeting) regarding when aerosols will be needed for LFRic.
15. (ongoing) FOC to raise with David Walters about aerosol climatologies for LFRic. '
16. FOC to follow up about Rose stem on MONSooN.
17. JM to put the branch to fix nucleation diagnostics in the microphysics on the bug fixes wiki together with a list of changes need to aerosol tunings.
18. JM to prepare some slides on the impact of the bug in the microphyics on aerosol and upload to this wiki.
19. NB and James to look at the impact of the bug in the microphyics and the tunings needed to go with it on performance in a GA4 job.
20. NB to add branch for GA4 job to UKCA wiki bug fixes table.
21. NS to add owner and CLOSED/OPEN columns in bugs table.
22. Ben Johnson (BJ) to review OC biomass burning emissions units (#41 in bug table) and if this is now correct, close.
23. NS to investigate issues with aerosol surface area (#52) and find more suitable owner for ticket.
24. MR to provide information on his fixes to RADAER files on the bugs table (#53).
25. JM to investigate current status of netCDF files in coupled jobs (#66)
26. NS to open ticket to capture issue with time availability codes for UKCA chemistry timesteps. Talk to Jane about her requirements and issues. See if CRUM team will take on the work.
27. NS if issue with output of NTPs on pressure levels not resolved before lodging the code, open a ticket to investigate further after 10.3.
28. FOC to open a doodle poll for December and 2nd Week January.

Bugfixes

#	Description	Ticket		Affected Versions/ Config	Branch with fix	Remarks
		MetO	NCAS
31	FP exceptions in asad_sparse_vars or asad_spimjmp	#5616, #368 (MOSRS)	#555	7.3: CheT+Aero	MetO: fcm:um_br/dev/fris/vn8.4_increase_rafeps Puma: fcm:um_br/dev/nhsavage/vn8.4_increase_rafeps	Paused pending LA discussion with Oliver Wild
35	Error in labelling: Surface resistance <--> stomatal resistance ?	#6417	#653	7.3:	None	Awaiting input from Federico Centoni
38	Missing logical for volcanic so2 emissions.	#6418	#656		MetO: fcm:um_br/dev/hadna/vn8.6_deactivate_volcanoes Puma: None	GM. To be Lodged
41	OC biomass burning emissions - incorrect conversion. Assumes emissions as kg POM, but (new) ancils are kg C	#6429		vn8.5:	MetO: fcm:um_br/dev/fpbj/vn8.6_ukca_mode_BBOC-POM_bugfix Puma: None	To be lodged Need to determine which ancils are POM vs C. BJ to review.
46	Inconsistent use of wet_levels and model_levels in UKCA_AERO_CTL 1-D arrays	None		All versions	None	Impact if wet_levels/= model_levels, but this option has never been supported for New Dynamics or ENDGAME and wet_levels has been retired by #425 for 10.3.
49	UKCA emissions: incorrect number, un-initialised slots in all_emissions()	#381 (MOSRS)		All UKCA	Example fix here (MOSRS)	To be lodged at vn10.2 as part of #805 (MOSRS)
50	ukca_solve_coagnucl failures	#319 (MOSRS)		UKCA-GLOMAP	Example fix here (MOSRS)	Mainly a workaround To be lodged
51	Units of wetland emissions	#571 (MOSRS)		All versions	Example fix here (MOSRS)	Wetland emissions misinterpreted as gridbox mean rates rather than a land fraction rate - Lodged at UM10.1 as part of the UKCA bugfix_package under ticket #564 (MOSRS)
52	surface area array so4_sa in ukca_main with L_ukca_sa_clim true setting so4_sa to zero if CLASSIC is off	#609 (MOSRS)		UKCA with l_het_psc		Needs further investigation. NS to look into this and find more appropriate owner.
53	UKCA RADAER namelists aren't read on the Cray	#577 (MOSRS)		RADAER, some platforms only	Change to input files, not code	lodged at UM10.1. MR to update this with his changes to make this work at earlier UM versions. Ben Johnson to discuss with UM systems/collaboration teams and ask for best approach to making available.
54	Offline oxidants Chemistry: Diagnostics not properly initialised	#659 (MOSRS)		Offline Chem	None yet	to be lodged at UM10.3
55	Use of trigonometric variables e.g. f3_at_u not consistent with ENDGame	#658 (MOSRS)		All UKCA	vn10.2_ukca_bugfixes_package	Basic fixes included in #805 to be lodged for 10.3
56	Array size issues with UKCA tracers when using EG limited area models	#682 (MOSRS)		ENDGAME UKCA LAMs	MOSRS: vn10.1_ukca_eg_array_dims	Fixed at 10.3
57	Incorrect logic for DMS anciliaries required	#708 (MOSRS)		UKCA jobs not using CLASSIC but without DMS in chemistry	MOSRS: vn10.1_aqum_eg_fixes	Model stops with message about missing input. NS. In progress. Very minor, only affects jobs without CLASSIC which have no DMS in mechanism.
58	Fastj-X runs on patches all in dark	None yet		UKCA jobs using FastJ-X	None yet	May not be a bug, but if so line should be deleted not commented out
59	Mismatch in levels while reading CDNC from D1 under ENDGame	#704 (MOSRS)		EG-UKCA vn9.0+ with Indirect effects	MOSRS: vn10.0_fix_cdnc_lev	To be lodged at UM10.3 in #805
60	Model failure with PrStatus_Diag	#784 (MOSRS)		UKCA on Cray	MOSRS: vn10.2_ukca_prstat_diag_fixes	To be lodged at UM10.3 in #805
61	MPI BCAST bug in NetCDF emiss code	#782 (MOSRS)		vn10.1 UKCA with Netcdf emiss	MOSRS: vn10.2_ukca_netcdf_bcastbug	To be lodged at UM10.3 in #805
62	Inconsistency in aero_surf area used in heterogeneous reactions routine. Het rates to be placed in the UM dump file if a job is to be restarted	(MOSRS)		UKCA+ het		To be lodged. CJ
63	Inconsistency in timestep/ interval calculation for BE-Offline scheme	#774 (MOSRS)		All BE Offline	vn10.2_ukca_repair_interval	To be lodged at vn10.3
64	Very low cloud fraction values can cause failures in Fastj/jx	#757 (MOSRS)		Any	Simple fix: vn10.2_ukca_acf_zero	Simple fix lodged at vn10.3
65	qcl not correctly initialised in ukca_calc_aqueous_6a	Part of #805 (MOSRS)		UKCA run with 6A convection	MOSRS: vn10.2_ukca_bugfixes_package	To be lodged at UM10.3 in #805
66	Crash in NetCDF emissions and oxidants routines when using NetCDF-4 libraries	NA		vn10.0-10.2 UKCA + NetCDF	MOSRS: vn10.2_ukca_readnc_offline_fix	Automatically fixed as part of #282. Only affects coupled model versions. JM to follow up