N+1=+1 for IPSLCM6

[mafoipsl]

Quality Control for IPSLCM6 :

Check the reproducibility of the year N+1 when restarting from the end of year N for a new simulation.

[mafoipsl]

Intermonitoring explaining the issue :

[mafoipsl]

A work around has been introduced for IPSLCM6.0.10-LR : [3193] . Use it carefully ie if you understand these lines.
To have strict reproducibility after a new start from a restart, let use in COMP/opa9.card :

	Reproducibility_after_restart= y

in DRIVER/opa9.driver :

• force nn_it000=kt red from restart file +1 .
• force nn_itend (and nn_stock) to : new nn_it000 + previous (nn_itend -nn_it000)
• kt red from restart file=$(ncdump -v kt restartopa_0000.nc|grep 'kt ='|awk '{print $3}' )

[mafoipsl]

Temporary workaround waiting solving this ticket (login and access required): ​https://forge.ipsl.jussieu.fr/shaconemo/ticket/60

[jgipsl]

C'est fait et activé par défault dans opa.card avec l'option suivant:

Reproducibility_after_restart= y