Add routing simple module

[jgipsl]

Add routing simple module to be used with unstructured grid. This routing module, based on the standard one, is created by Y. Meurdesoif. It can be used as well with unstructured and regular grid.

By default the standard routing module is used, which is the previous one. To change between modules, use ROUTING_METHOD='standard' or ROUTING_METHOD='simple' in run.def.

To use ROUTING_METHOD='simple', the file context_routing_orchidee.xml must be copied to the run directory and included in iodef.xml, see comments in iodef.xml.

Commit done in the branch ORCHIDEE_2_2: [6102] [6103]

[jgipsl]

Newly done:

• Code to extend the routing.nc file to route into the ocean can be found here [7477] ​https://forge.ipsl.jussieu.fr/orchidee/browser/trunk/TOOLS/ROUTING_SIMPLE
• routing_simple.nc file is added on the shared repository here: IGCM/SRF/ROUTING/routing_simple.nc
• Update on routing_simple.f90 [7481]

Still needs to be done:

• More tests and validation
• Adapt experiences, at least the one with DYNAMICO which can not run with any other routing scheme

[jgipsl]

Adapte orchidee.driver and experiment in LMDZOR_v6.2 config here : ​https://forge.ipsl.jussieu.fr/igcmg/changeset/6077 and ​https://forge.ipsl.jussieu.fr/igcmg/changeset/6078.
In this commit was added an experiment clim_pdControl_routsimple with the only difference the activation of routing scheme simple in orchidee.card. Note the new restart file which is produced by this routing scheme.

[jgipsl]

​https://forge.ipsl.jussieu.fr/igcmg/changeset/6085 :
Remove experiment clim_pdControl_routsimple with routing simple and replaced by only a specific orchidee.card_routage_simle which can be used as an example to activate this option. orchidee.card_routage_simple should be should renamed orchidee.card to be used.

[jgipsl]

To be done in ORCHIDEE trunk

[jgipsl]

[7977] integrated in the trunk

[jgipsl]

[7981] : integrated in the trunk, corresponding to [7481]. The previous commit 7977 did not contain these changes even if the comment said so.

[jgipsl]

The integration has been done in the trunk. Longer test simulations will be done. This ticket is finished but it is kept open a while to access more easily the information.