[Ncep.list.wwatch3.discussion-group] WWIII Notes - Weds, April 18, 2018

[Jessica Meixner - NOAA Federal]

Hi -

Just a few things I forgot from above:
* Erick said he would send Mickael a template of the flexible table for
point output values to see if it would be possible with namelists.
* Aron said he would track down and share the ECMWF exoscale computing
document
* There is a page on the wiki to collect FAQ from users (
https://vlab.ncep.noaa.gov/redmine/projects/emc-ww3/wiki/Frequently_Asked_Questions).
Please contribute to this page and after we have the list, we will work
towards posting it somewhere, possibly as an extra tab here:
http://polar.ncep.noaa.gov/waves/wavewatch/
* There is still an issue with unstructured grids and ice that Henrique and
Aron are working on: https://vlab.ncep.noaa.gov/redmine/issues/45653 and
Henrique would welcome help or insight from anyone.

Best,
Jessica




On Fri, Apr 20, 2018 at 8:23 PM, Jessica Meixner - NOAA Federal <
jessica.meixner at noaa.gov> wrote:

> WWIII Notes - Weds, April 18, 2018
>
> Hi Everyone -
>
>
> Happy Friday! Thank you to all who joined us on Wednesday.  Here are the
> meeting notes:
>
> *There has been a request for an alpha release at the end of May.  Please
> let me know if you are not okay with this.  We will discuss it further at
> our next call.
>
> * Update from Fabrice (he emailed this to those on the google calendar
> already):
>
> - wave-ice interactions with IC2 and IS2: this is fully documented in 2
> papers (one accepted in JGR:
>
> https://www.researchgate.net/publication/322519316_Wave_
> Attenuation_Through_an_Arctic_Marginal_Ice_Zone_on_12_
> October_2015_2_Numerical_Modeling_of_Waves_and_Associated_Ice_Breakup
>
> the other is coming but a lot of the material is in the manual).
>
> -These are basically designed for a solid ice layer (not pancakes) that
> can break up and are then characterized by a max floe size.
>
> -Other than that we will soon have a retuned ST4 with much better tail
> characteristics (see talks of Charles peureux at EGU and Pedro Guimaraes at
> WISE) based on short wave modulation by long waves ...
>
> -and the last bit is a few fixes for boundary conditions in triangle mesh
> (in particular to fix the bug with IG waves but also to comply with new
> schemes from Aron)
>
> * There were no spoken opinions on the flag numbers for adding additional
> boundary types in unstructured grids.  Those adding additional boundary
> types will move forward with deciding what that is and will document the
> chosen scheme.
>
> * Upcoming commits to master:
>
>   --- Mickeal’s update for w3_automake, create w3_setevn, gets rid of
> global install https://vlab.ncep.noaa.gov/redmine/issues/47937  (This
> went in this morning)
>
>    --- updates from Andy to make rotated grids easier to use
> https://vlab.ncep.noaa.gov/redmine/issues/46574
>
> Updates on milestones for v6:
>
> * 6.XX Namelist format for input files
> <https://vlab.ncep.noaa.gov/redmine/versions/1353> Update from Mickael:
>
> -ww3_multi.nml and ww3_prnc.nml are already integrated
>
> -all the regtests with ww3_multi and ww3_prnc are updated to use namelist
> feature
>
> -a bash script to convert inp to nml is in model/aux/bash
>
> what is under development in my branch :
>
> -ww3_ounf.nml ww3_ounp ww3_bounc ww3_trnc are implemented and tested with
> regtests
>
> -ww3_shel is under development this week
>
> -ww3_grid will be the next one and obviously the most difficult to do !
>
> The namelist feature for all the other programs will be done in a second
> part, during summer.
>
> * 6.XX Address directional singularity at North Pole
> <https://vlab.ncep.noaa.gov/redmine/versions/1214>
>
> - Brandon and I have made some progress and the next step is to figure out
> MPI
>
> * 6.XX Bit Reproducibility
> <https://vlab.ncep.noaa.gov/redmine/versions/1381>
>
> -Getting closer.  A post call update form Henrique, it appears the
> bit-reproducibility issues happen when you have fractional partitioning.
> Oddly only appears if you have 0-⅓ ⅓-⅔, but 0-1 and 0-0.5 was fine.
>
>
> Next Meeting is Wednesday, May 16 at 10:30am ET. The plan will be to
> discuss various topics from Aron, Jane and Ty’’s visit to NCEP including:
> Memory Management, output options, code standards for faster in exoscale,
> regtests and other.
>
> Best,
> Jessica
>
> --
> Jessica Meixner
> NCEP/EMC
> NOAA Center for Weather and Climate Prediction
>



-- 
Jessica Meixner
NCEP/EMC
NOAA Center for Weather and Climate Prediction
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