[Ncep.list.wwatch3.discussion-group] WW3 updated to version 6.04: Implicit scheme with domain decomposition

[Arun Chawla - NOAA Federal]

We are very excited with this development of WAVEWATCH III. Kudos to Ali,
Jessica, Aron and Tyler for working so hard to get this capability in (well
a series of capabilities. It was very  hard to get Aron to stop!). This is
a significant milestone for WAVEWATCH III and we are very proud of the work
done by this team. Now like any new significant development there are bound
to be bugs so we would love for everyone to test drive this shiny new car
and let us know all the issues that you find. Keep in mind that the real
upgrade you will see is when you try to run the very high resolution grids.
As always we rely on the community support to make this a success.

Once again. Congratulations all ! And just in time for Fabrice to make life
miserable for all those unsuspecting souls at his summer school.

---------------------------------------------------------------
Arun Chawla
Acting Chief
Engineering and Implementation Branch
Room 2109
National Center for Weather & Climate Prediction
5830 University Research Court
College Park, MD 20740
Ph: 301-683-3740
Fx: 301-683-3703
------------------------------------------------------------


On Fri, Jun 8, 2018 at 12:36 PM, Jessica Meixner - NOAA Federal <
jessica.meixner at noaa.gov> wrote:

> Hi Everyone,
>
> WAVEWATCH III is now at version 6.04 with the inclusion of the ugdev2
> branch! A quick list of the updates are:
>
>    - Implicit time integration was added for unstructured grids
>    - Domain decomposition was added for unstructured implicit/explicit
>    schemes using PDLIB (Parallel Domain Decomposition Library) based on
>    ParMetis
>    - The SHRD/DIST ISEA/JSEA process was updated with GET_ISEA_INIT and
>    GET_JSEA_INIT
>    - Improved preprocessing of unstructured grid arrays was developed
>    - New and more efficient wetting/drying was added for unstructured
>    grids
>    - A new switch pre-processor WW3_switch_process
>    - MEMCHECK options was added to trace memory usage during runtime
>    constructing a new interface to MALLOC and system msg.
>    - SETUP switch - implicit unstructured computation of wave setup
>    (experimental)
>    - Added various debug switches
>
> More details can be found on the Vlab Issue at https://vlab.ncep.noaa.gov/
> redmine/issues/51370.
>
> Please note that there were lots of changes made including various bug
> fixes.  The changes in the structured regtests if any, were small in
> magnitude. Due to the large amounts of changes, I would be a recommend
> making a test of your applications to insure there are no issues*.* If
> you do have problems, please create an issue describing it on Vlab (
> https://vlab.ncep.noaa.gov/redmine/projects/emc-ww3/issues/new) adding
> Aron, Ali and me as watchers or send an email (emails: aaronroland at gmx.de,
> ali.abdolali at noaa.gov, jessica.meixner at noaa.gov).
>
> The next commit will be from the nml branch, and then we will be making an
> alpha release.
>
> Best,
> Jessica
>
> --
> Jessica Meixner
> NCEP/EMC
> NOAA Center for Weather and Climate Prediction
>
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