2018 Shared actions
Last edition: Wikinfo(changed_ts)? by Wikinfo(changed_by)?
ST members involved
| Name | Institution | % | Position
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| Bricaud Clément | Mercator Ocean | 40 | Officer
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| Chanut Jerome | Mercator Ocean | 20 | Developer and AGRIF WG leader
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| Bourdalle-Badie Romain | Mercator Ocean | 20 | Developer
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| Paul Julien | Mercator Ocean | 20 | Developer
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| Simona Flavoni | CNRS LOCEAN-IPSL, Paris | 50 | Officer and Robustness WG leader
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| Christian Ethé | CNRS IPSL, Paris | 50 | ...
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| Claire Lévy | CNRS LOCEAN-IPSL, Paris | 100 | Project manager
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| Sébastien Masson | CNRS LOCEAN-IPSL, Paris | 50 |
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| Nicolas Martin | CNRS LOCEAN-IPSL, Paris | 50 |
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| Gurvan Madec | CNRS LOCEAN-IPSL, Paris | 30 | Scientific Expert
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| Clément Rousset | CNRS LOCEAN-IPSL, Paris | 50 |
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| Martin Vancoppenolle | CNRS LOCEAN-IPSL, Paris | 20 |
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| Andrew Coward | NERC NOC | 60 | Officer
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| George Nurser | NERC NOC | 20 | Developer
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| Yevgeny Aksenov | NERC NOC | 20 | Sea Ice developer
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| Emanuela Clementi | INGV | 30 | Officer
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| Gelsomina Mattia | INGV | 25 |
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| Massimiliano Drudi | INGV | 25 |
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| Damiano Delrosso | INGV | 20 |
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| Dorotea Iovino | CMCC | 25 | Officer
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| Tomas Lovato | CMCC | 20 |
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| Silvia Mocavero | CMCC | 20 |
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| Stefania Ciliberti | CMCC | 20 |
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| Francesca Mele | CMCC | 20 |
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| Replacement for Tim Graham | Met-Office | 80 |
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| Pierre Mathiot | Met-Office | 20 | Officer
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| Mike Bell | Met-Office | 20 | HPC WG leader
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This wiki page only includes the summaries from workplan action pages, follow the link to edit each cell of the table.
Enhancement
List of pages: ENHANCE-01_Romain-massfluxconvection, ENHANCE-02_Jerome_freesurface, ENHANCE-03_jchanut-ZTILDE, ENHANCE-04_Gurvan-RK3, ENHANCE-05_Gurvan-Vertical_Advection, ENHANCE-06-Gurvan-Bulk_improvements, ENHANCE-07-CRousset_LIM3adv_valorisation, ENHANCE-08_Gurvan-Implicit_Drags, ENHANCE-09_Gurvan-GEOMETRIC, ENHANCE-10_Nicolas-TrustingSetteCooperation, ENHANCE-11_Nicolas-RepositoryCleaning, ENHANCE-12_Yevgeny-IceWaves, ENHANCE-13_Olivier-Vertical_Sinking, ENHANCE-14_CEthe_PISCES_LBC
| Action | ENHANCE-1_Romain-massfluxconvection
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| PI(S) | Romain Bourdalle-Badie
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Digest
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Implementation of a mass flux scheme for convection.
Resolution of the convection as in atmospheric model.
Improvement of the deep convection and vertical velocity associated (up and down).
Alternative at evd or npc formulation.
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| Dependencies |
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| Trac Ticket | #2052
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| SVN branch | branches/$YEAR/dev_r{REV}_{WG|STREAM|INSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
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| Link | ExtractUrl(.)?
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| Action | ENHANCE-4_Gurvan-MLF_RK3
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| PI(S) | Gurvan Madec
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Digest
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New ocean engin based on two time stepping schemes :
- a Modified Leap-Frog scheme (MLF, Leclair and Madec OM2010).
- a 3rd order Runge-Kutta scheme (RK3).
Possibly, later on, a third scheme may be considered for O(1°) resolution configuration:
- a Forward/backward scheme (FBS)
Muti-year action started in 2017 (see2017WP), not expected to end in 2018.
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| Dependencies |
| | Target | low
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| Trac Ticket | #1911
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| SVN branch | dev_r9838_ENHANCE04_MLF and dev_r9838_ENHANCE04_RK3
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| Link | ExtractUrl(.)?
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| Action | ENHANCE-5_Gurvan-Vertical_Advection
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| PI(S) | Andrew Coward
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Digest
| - introduce a semi-implicit vertical advection on both momentum and tracers
- add 4th order vertical advection option on momentum (flux form only)
Will be done in the new FBS/RK3 ocean engine
Probably adapted also to the 2018 version (i.e. in leapfrog environnement)
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| Dependencies |
| | Target | normal
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| Trac Ticket | #2042
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| SVN branch | branches/$YEAR/dev_r{REV}_{WG|STREAM|INSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
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| Previewer(s) |
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| Reviewer(s) | Gurvan Madec
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| Link | ExtractUrl(.)?
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| Action | ENHANCE-6-Gurvan-Bulk_improvements
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| PI(S) | Gurvan Madec
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Digest
| - add cool skin and warm layer in the bulk package so they are used in fluxes computation.
- split in two parts the sbc_blk routine one for turbulent fluxes computation and a second for the other fluxes (preparation of Atmos. Boundary Layer component)
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| Dependencies = | availability of Laurent Brodeau for the first point
| | Target = | low priority
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| Trac Ticket | #0000
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| SVN branch | branches/$YEAR/dev_r{REV}_{WG|STREAM|INSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
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| Link | ExtractUrl(.)?
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| Action | ENHANCE-08_Gurvan_Implicit_drags
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| PI(S) | Gurvan Madec and/or Jérome Chanut (?)
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Digest
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proper treatment of implicit top, bottom and sea-ice frictions.
Will be implemented with a 2-level time stepping framework (FBS or RK3)
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| Dependencies = | depend on the progress on FBS-RK3 action
| | Target | medium priority
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| Trac Ticket | #2045
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| SVN branch | branches/$YEAR/dev_r{REV}_{WG|STREAM|INSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
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| Link | ExtractUrl(.)?
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| Section "summary" not found in wiki page "2018WP/ENHANCE-10_Nicolas-TrustingSetteCooperation"
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| Section "summary" not found in wiki page "2018WP/ENHANCE-11_Nicolas-RepositoryCleaning" |
| Action | ENHANCE-12_Yevgeny-Icewaves
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| PI(S) | Andrew Coward and Yevgeny Aksenov
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Digest
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Introduce a coupling between waves, sea ice and ocean (Marginal Ice Zone) that accounts for sea ice break up by waves, wave attenuation by sea ice and combined collisional ice rheology
Initially, ice break up by waves will be included using the wave forcing fields with a view to full coupling with WW3 when available.
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| Dependencies |
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| Trac Ticket | #2020
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| SVN branch | branches/$YEAR/dev_r{REV}_{WG|STREAM|INSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
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| Link | ExtractUrl(.)?
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HPC
List of pages: HPC-01_SilviaMocavero_singlecoreperf, HPC-02_FrancescaMele_hybrid, HPC-03_SilviaMocavero_globcomm, HPC-04_SilviaMocavero_mpi3, HPC-05_AndrewC-extendedhaloes, HPC-06_andmirek-XIOSread, HPC-07_andmirek_XIOSwrite, HPC-08_Mixed_precision, HPC-09_Maisonnave-ATOS-ESIWACE
| Action | HPC-01_HPCWG_singlecoreperf
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| PI(S) | HPC subgroup/Silvia Mocavero & Tim Graham as members of ST
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Digest
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The activity is based on the work started in 2017. A portable tool to extract the hardware performance counters needed for the analysis of the NEMO single-core performance has been implemented and tested on NEMO. A preliminary analysis has been done on Met Office and CMCC systems and memory-bounded routines have been identified.
The action will continue during 2018. The following sub-actions are identified:
(i) integration of the portable tool in the 4.0 release. This action is needed to extend the analysis to several architectures (Tim Graham or someone else from Met Office)
(ii) analysis on other systems (Clement Bricaud)
(iii) investigation of alternative approaches to improve the data locality (Silvia Mocavero)
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| Dependencies | Availability of HPC subgroup members
| | Target | Normal
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| Trac Ticket | #0000
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| SVN branch | branches/$YEAR/dev_r{REV}_{WG|STREAM|INSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
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| Link | ExtractUrl(.)?
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| Action | HPC-02_FrancescaMele_hybrid
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| PI(S) | Francesca Mele/Silvia? Mocavero
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Digest
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Continue the same activity carried out in 2017. The coarse-grained approach, developed in 2017 on the ZDF package (as restructured by Gurvan), will be tested on routines more affected by MPI communications. The effort required for the code restructuring and the gain due to the hybrid parallelisation will be evaluated by the end of this year in order to decide if OpenMP will be introduced in the NEMO code.
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| Dependencies |
| | Target | Normal
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| Trac Ticket | #0000
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| SVN branch | branches/$YEAR/dev_r{REV}_{WG|STREAM|INSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
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| Link | ExtractUrl(.)?
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Can be found here: WorkingGroups
In particular, for details on history of simplification
- Actions on system simplification towards 4.0 can be find here: 2014WP/2014_SystemSimplification_v2
- The status and details of the intrusive simplification work already done is located here: ticket/1593_CNRS9_NOC3_LDF
