NEMO 2016 workplan - Shared actions

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Inputs from working groups:

• Actions on system simplification towards 4.0 can be find here : https://forge.ipsl.jussieu.fr/nemo/wiki/2014WP/2014_SystemSimplification_v2

• The status and details of the intrusive simplification work already done is located here :https://forge.ipsl.jussieu.fr/nemo/wiki/ticket/1593_CNRS9_NOC3_LDF

• HPC actions listed below are the list of required actions. What we can do this year remains to be determined. See Sebastien Masson's document for more details : https://forge.ipsl.jussieu.fr/nemo/attachment/wiki/WorkingGroups/NEMO_HPC/HPC_tasks_Masson.doc
• From Robustness and tests cases working group, state of the art and 2016 suggestions are here: https://forge.ipsl.jussieu.fr/nemo/wiki/WorkingGroups/Robustness-TestCases#InputtotheWorkplan2016

Summary of Shared Actions:

Action	Brief description	Status end 2016	Institution	PI
AGRIF
AGRIF-1	Continue vertical grid refinement from 2015		Met Office	Tim Graham
AGRIF-2	AGRIF + LIM3		CNRS	Clément Rousset
HPC
HPC-1	Suppress Global Comms (mpp_sum etc)*
HPC-2	Gather communications*
HPC-3	Suppress useless comms*
HPC-4	Larger halo to limit max 1 communication per variable per timestep*
HPC-5	Larger halo to further reduce communication frequency*
HPC-6	Restrict computation to inner domain everywhere*
Config. Manager
CONFIGMAN-1	SIREN improvement and robustness		MERCATOR	julien PAUL
CONFIGMAN-2	BDY tool developpement and tests		NERC/CMCC	james HARLE, stefania CILIBERTI
System simplification
SIMPLIF-1	Simplification of vertical diffusion		CNRS	Gurvan Madec
Wave coupling
WAVE-1	Improvements in wave-current interaction processes implementation		INGV	Emanuela Clementi
WAVE-2	Definition of wave-current interaction processes at small (coastal) scale		INGV	Emanuela Clementi
NEMO robustness
ROBUST-1	Integration of the seabass configuration as a test case		CNRS	Pierre-Antoine Bouttier
ROBUST-2	Improving EEN scheme for partial steps
ROBUST-3	Academic test case in the system		CNRS	Simona Flavoni
ROBUST-4	Passive tracers run offline with variable volume		CNRS	Christian Ethé
ROBUST-5	Revisiting TOP interface		CNRS	Christian Ethé
ROBUST-6	Continuous integration tool ('Trusting')		CNRS	Nicolas Martin
GMD Special Issue

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AGRIF

AGRIF-1 / institution - title

Motivation:
Status:
Main Tasks:
Science Reviewer:
System Reviewer:
Deadline:
Priority:
Depends on:
Principal Investigator :

HPC

HPC-1 / institution - title

Motivation:
Status:
Main Tasks:
Science Reviewer:
System Reviewer:
Deadline:
Priority:
Depends on:
Principal Investigator :

Configuration Manager

ConfigMan-1 / MERCATOR - SIREN improvement and robustness

Motivation:

• test SIREN code (working group members and maybe some external users)
• extract from NEMO the meshmask creation (Mercator-Océan)
• main program (python) to manage all SIREN codes (Mercator-Océan)
• improve documentation readibility, and add tutorial (Mercator-Océan)

Status:
Main Tasks:
Science Reviewer:
System Reviewer:
Deadline:
Priority:
Depends on:
Principal Investigator : julien PAUL

ConfigMan-2 / NERC/CMCC - BDY tool developpement and tests

Motivation: -finish last improvement of the BDY tool and add some documentation (NERC) -test BDY tool (CMCC)
Status:
Main Tasks:
Science Reviewer:
System Reviewer:
Deadline:
Priority:
Depends on:
Principal Investigator : james HARLE, stefania CILIBERTI

SIMPLIFICATION

SIMPLIF-1 / institution - title

Motivation:
Status:
Main Tasks:
Science Reviewer:
System Reviewer:
Deadline:
Priority:
Depends on:
Principal Investigator :

Wave Coupling

WAVE-1 / INGV - Improvements in wave-current interaction processes implementation

Motivation: INGV is responsible for the WAVE-WG and will continue improving the wave-current interaction processes implementation according to the WG needs.
Status : Implementation of some of the identified processes has been started in 2014 and 2015. To be continued in 2016
Main tasks : Continue the implementation of already defined wave-current processes, if not completed in previous year. Meeting organization with the WAVE-WG to discuss further issues to be investigated and implemented:

• Vertical mixing enhancement due to wave breaking;
  
• Contribute to the discussion on implementation of Langmuir circulation;
  
• Contribute to the discussion on wave-sea ice coupling; ;
  
• others if agreed by the WAVE-WG.
  

Science Reviewer:
System Reviewer:
Deadline:
Priority: high
Depends on:
Principal Investigator: Emanuela Clementi (emanuela.clementi@…)

WAVE-2 / INGV - Definition of wave-current interaction processes at small (coastal) scale

Motivation: According to the WAVE-WG, in order to achieve a full wave-current coupling, the small (coastal) scale processes need to be investigated.
Status : To be continued in 2016
Main tasks : Contribute, within the WAVE-WG, in the analysis of this issue in order to finalize the discussion started in 2014 before proceeding with any new implementation
Science Reviewer:
System Reviewer:
Deadline:
Priority:
Depends on:
Principal Investigator: Emanuela Clementi (emanuela.clementi@…)

ROBUSTNESS

ROBUSTNESS-1 / CNRS - INTEGRATION OF THE SEABASS CONFIGURATION AS A TEST CASE

Motivation: SEABASS is the reference configuration for Data Assimilation, included in the NEMO v3.4_STABLE version. Various data assimilation experiments have been done with this configuration, with various data assimilation systems (e.g. Cosme et al, 2011, Bouttier et al. 2014, Yin et al., 2014). In this context, this configuration appears to be useful for data assimilation users, to couple their own DA system on NEMO and compare their results with thgose obtained on this configuration. SEABASS is also easy to take in hand. Also, it allows to update the configuration status to the future version of NEMO. For these reasons, this configuration is a relevant test case for Data Assimilation.
Status:
Main Tasks:
Science Reviewer:
System Reviewer:
Deadline:
Priority:
Depends on:
Principal Investigator: Pierre-Antoine Bouttier