| 10 | | |
| 11 | | == 2019/11/07 Formation ORCHIDEE: 16-17 janvier 2020 |
| | 10 | == 2019/12/01 IPSL-CMC workflow adapted to Jean-Zay/IDRIS == |
| | 11 | The IPSL-CMC workflow for calculation and post-treatment has now been adapted for use at Jean-Zay the new supercomputer at IDRIS. Current list of maintenained configurations can now be used at Jean-Zay. |
| | 12 | |
| | 13 | The main information related to the use of Jean-Zay can be found in the documentation [wiki:Doc/ComputingCenters/IDRIS]. You'll find for example where the shared repository R_IN with input files are found and how to set up your environment needed before compilation. |
| | 14 | |
| | 15 | A technical control quality have been performed on the IPSLCM6.1.10 and LMDZOR_v6.1.10 configurations. A scientific validation has been done on the coupled experience piControl during 50 years with the configuration IPSLCM6.1.10. See information about these tests here: http://wiki.ipsl.jussieu.fr/Pole/ESCI/PortageJeanzay#Validation_et_contr.2BAPQ-le_qualit.2BAOk- (last item on the page). |
| | 16 | We encourage you strongly to also validate personally the configuration you use. |
| | 17 | |
| | 18 | We want to draw your attention to the following: |
| | 19 | - you need to change in config.card the default number of threads OpenMP before launching a job when using LMDZ. This is needed because the architecture at Jean-Zay is based on nodes with 40 cores, dispatched on 2 processors Cascade Lake with 20 cores each. The number of OpenMP threads to use is therefor 2, 4, 5, 10 or 20 (communications inter-socket is not optimized). This number of OpenMP threads should be changed in the config.card in the experiment you want to submit before creating the job (before launching the ins_job command). |
| | 20 | - the ATLAS feature which were longtime considered as obsolete has now been deactivated for all configuration and on all computing centers. This feature can be activated again by setting config_Post_AtlasIPSL=TRUE as described here: [wiki:Doc/Running#Atlas] |
| | 21 | |
| | 22 | Following features are still not yet available at Jean-Zay: |
| | 23 | - mail from computing and post-treatment nodes are not yet available. This means that the user do not receive the emails with information about the simulation. In addition, the supervisor Hermes do not receive information either and the simulations can not yet be followed at Hermes. |
| | 24 | - the threads functionality, to access output from outside IDRIS is not yet available |
| | 25 | - the multi-project management by libIGCM is not finalized. This means that to change project for storage of results and for computing hours you need to: |
| | 26 | - indicate the project "xxx" to use when launching ins_job for creation of the job |
| | 27 | - use the command '''eval $(idrenv -d xxx)''' in the terminal before launching the job |
| | 28 | - for more information about the use of multi-project, read more at IDRIS homepages http://www.idris.fr/jean-zay/cpu/jean-zay-cpu-doc_multi_projet.html. |
| | 29 | |
| | 30 | If you have any questions, don't hesitate to send them to the list "platform-users@listes.ipsl.fr" so that more people can learn from the answers. You can also answer questions from your colleges at this list. |
| | 31 | |
| | 32 | |
| | 33 | == 2019/11/07 Training course ORCHIDEE: 16-17 janvier 2020 |
