Opened 6 years ago

Closed 18 months ago

#1426 closed Task (fixed)

ROBUST-01(2015WP)/MERCATOR-6 online coarsening

Reported by: cbricaud Owned by: cbricaud
Priority: normal Milestone: 2018 WP
Component: OCE Version: release-3.6
Severity: minor Keywords: 2015
Cc: Review: failed
MP ready?: no
Progress: Unspecified

Commit History (0)

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Change History (21)

comment:1 Changed 6 years ago by cbricaud

https://forge.ipsl.jussieu.fr/nemo/changeset/5007

in crs_dom_def: jpj_crs can be increased. all arrays with jpj_crs as dimension should be allocated affter. so crs_dom_alloc is splitted and crs_dom_alloc1 is called after dimension computing

in crs_dom_def: noso is refering to the proc on which where are computing, but it used in the loop on processors jn.
so we define iprocso which refers to proc jn.

in crs_dom_def: we change the loops on jn which are not compatible with mpp_ini2.
results are reproductible for 24.20.480 with the old loop and the new loop.
results are reproductible with the new loop for 24.20.480 and 24.20.390 .

crsini.F90: avoid divsion per 0. for facsurfu/v.

crsfld.F90: avoid division pr 0. with crs_volt_wgt for hdivn_crs

mppini.F90 and mppini_2.h90: modifications to allow landprocessor removing with CRS.

comment:2 Changed 6 years ago by cbricaud

https://forge.ipsl.jussieu.fr/nemo/changeset/5010

bug detected:
in crsfld: crs_volt_wgt,crs_surfu_wgt and crs_surfv_wgt are used to compute hdiv.
but they are declared/allocated, but no computed. do hdiv=0 in coarsened ouputs.
change computing of hdivn_crs(ji,jj,jk)

allow CRS to run with ln_nogather=T

comment:3 Changed 6 years ago by cbricaud

  • Milestone set to 2015 nemo_v3_6_STABLE

comment:4 Changed 5 years ago by cbricaud

changes at rev5601:
https://forge.ipsl.jussieu.fr/nemo/changeset/5601

running with ORCA025_LIM2, time-splitting, fixed volume and age tracer

comment:5 Changed 5 years ago by cbricaud

merge change from trunk rev 5003 to 5519 ( rev where branche 3.6_stable were created ):
svn merge -r 5003:5519 svn+ssh://cbricaud@forge.ipsl.jussieu.fr/ipsl/forge/projets/nemo/svn/trunk .
commit at rev 5602.
https://forge.ipsl.jussieu.fr/nemo/changeset/5602

comment:6 Changed 4 years ago by nicolasmartin

  • Keywords 2015 nemo_v3_6* added

comment:7 Changed 4 years ago by cbricaud

the branch containing the online coarsening of BCG model is available here:
https://forge.ipsl.jussieu.fr/nemo/browser/branches/2015/dev_r5003_MERCATOR6_CRS

This branch is associated nemo 3.6 stable ( available here: https://forge.ipsl.jussieu.fr/nemo/browser/branches/2015/nemo_v3_6_STABLE/NEMOGCM )
This branch is phased with rev 7213 of nemo 3.6 stable.

Coarsening capacity can be used:

  • for output of physics variables at a lower resolution
  • or to run a configuration using TOP online at a lower resolution

A "readme" is available in the branch : NEMOGCM/CRS_help/README_COARSENING.txt

At the moment, coarsening can not be activated with PISCES; it will be available in the next weeks.

Different runs have been performed with Age tracer to validate coarsening implementation:

  • a run 'full resolution' based on eORCA025_LIM3 ( physic and passive tracer at ¼° resolution )
  • a run 'low resolution' based on eORCA075_LIM3 ( physic and passive tracer at ¾° resolution )
  • a run with coarsening based on eORCA025_LIM3 ( physic at ¼° resolution and passive tracer at ¾° resolution )

Age tracer from the coarsened run well reproduce age tracer from 'full resolution' run.

comment:8 Changed 4 years ago by cbricaud

At the revision 7345 of this branch is, PISCES routines has not been impacted.

comment:9 Changed 4 years ago by cbricaud

commit a first implementation of coarsening in PISCES at rev7398 ( https://forge.ipsl.jussieu.fr/nemo/changeset/7398 )
PISCES is running with coarsening ( not crash ) but there is a problem of CHL productions. problem under investigation
Note that, as TOP need to read data from files for tracers CI , or as PISCES needs too to read data from files , there is a change in IOM to tell it when reading is done in 'coarsened space'

comment:10 Changed 4 years ago by cbricaud

http://forge.ipsl.jussieu.fr/nemo/changeset/7520 : now PISCES is running with online coarsening
http://forge.ipsl.jussieu.fr/nemo/changeset/7521 : big correction for mother grid domain definition in coarsening

comment:11 Changed 3 years ago by cbricaud

Different bugfix have been committed :
see http://forge.ipsl.jussieu.fr/nemo/changeset?reponame=&new=8103%40branches%2F2015%2Fdev_r5003_MERCATOR6_CRS&old=7806%40branches%2F2015%2Fdev_r5003_MERCATOR6_CRS

  • 2 bug fixes on lateral diffusion
  • maskland option ok for coarsening variables
  • horizontal surfaces changed fot isopycnal diffusion and surface fluxes coarsening
  • bugfixes on coarsned grid local indices computing
  • restartabity ok

comment:12 Changed 3 years ago by nicolasmartin

  • Owner changed from nemo to cbricaud
  • Status changed from new to assigned

comment:13 Changed 3 years ago by nemo

  • Type changed from Development to Task

Remove 'Development' type

comment:14 Changed 3 years ago by nicolasmartin

  • Milestone 2015 nemo_v3_6_STABLE deleted
  • Version changed from nemo_v3_6_alpha to release-3.6
  • workplan_status set to unknown

comment:15 Changed 3 years ago by nemo

  • Keywords release-3.6* added; nemo_v3_6* removed

comment:16 Changed 3 years ago by nemo

  • Keywords release-3.6* removed

comment:17 Changed 2 years ago by nemo

  • Milestone set to Unscheduled

Batch modification of milestone field set to 'Unscheduled'

comment:18 Changed 2 years ago by nicolasmartin

  • Milestone changed from Unscheduled to 2018 WP
  • Summary changed from ROBUST-1 /MERCATOR-6 online coarsening to ROBUST-1 /MERCATOR-6 online coarsening

Now the CRS branch is located source:/NEMO/branches/2018/dev_r5003_MERCATOR6_CRS

Should consider an last one phase with 3.6 release at some point.

comment:19 Changed 22 months ago by nicolasmartin

  • Summary changed from ROBUST-1 /MERCATOR-6 online coarsening to ROBUST-1(2015WP)/MERCATOR-6 online coarsening

comment:20 Changed 22 months ago by nicolasmartin

  • Summary changed from ROBUST-1(2015WP)/MERCATOR-6 online coarsening to ROBUST-01(2015WP)/MERCATOR-6 online coarsening

comment:21 Changed 18 months ago by gsamson

  • Resolution set to fixed
  • Status changed from assigned to closed
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