[Ncep.list.fv3-announce] Update: FV3GFS/global-workflow port to Hera

Kate Friedman - NOAA Federal Kate.Friedman at noaa.gov
Mon Sep 30 17:13:44 UTC 2019


The R&D folks sent out the phase out/in schedule for Theia/Hera. Looks like
we'll indeed have Theia available to some degree through late November.
Please try to finish your experiments on Theia before moving to Hera if you
can. Here is the phase in/out schedule for anyone who didn't see it:

*Theia and Hera Phase-Out/In*

Over the next two months, we will phase out Theia and phase in Hera. (Note
that all of this is subject to not having any catastrophic failures on
Theia's /scratch3 and /scratch4.)

   *Currently: *  Hera 690 Nodes active (52%)   *Theia 1194 Nodes active

   *October 7: * Hera 882 (66%)  *Theia 955 (80%)*

   *October 21: *Hera 1109 (83%) * Theia 716 (60%)*

   *November 4:* Hera 1336 (100%) *Theia (597 (50%)*

  * November 18:* Hera Upgrade 1596  *Theia 299 (25%)*

   *November 25:* Hera 1596 (100%)* Theia 0 (0%)*

   *November 29:  *       */scratch3 & /scratch4 shutdown!!*

Kate Friedman
NOAA/NWS/NCEP/EMC Engineering and Implementation Branch

On Fri, Sep 27, 2019 at 1:15 PM Kate Friedman - NOAA Federal <
Kate.Friedman at noaa.gov> wrote:

> All,
> Good progress continues to be made on the port of the FV3GFS to Hera. Most
> components are working stably now and the remaining pieces (e.g.
> verification) are now being tested. I am also now beginning to engage with
> beta-testers to confirm they can reproduce what I am able to build/run.
> There are many pieces of the system that need to get into their final forms
> still (a.k.a. validated and tagged) so we're still at least a couple weeks
> away from a finalized system. We have to cross our Ts and dot our Is before
> giving you all a package to run on Hera.
> Given the current status I estimate an official tagged and merged version
> in global-workflow by mid to late October. I'm working to have a branch
> version for folks to use in early October, with the understanding that
> changes will likely still occur during final pre-commit testing phase. Stay
> tuned for that!
> *Some other good news...word on the street is that the schedule for Theia
> end-of-life has been extended into late October, maybe even late November!* I'm
> waiting for system admins to send an announcement about this to confirm
> what I was told yesterday. If you have experiments running on Theia that
> will complete in the next few weeks I recommend trying to finish them
> there. Even though end-of-life has been extended for Theia the filesystem
> support will still go away October 1st so keep that in mind...if there are
> filesystem issues there is no help. *Hera has now passed acceptance tests
> and is considered operational, although it's still at 50% while Theia is
> still available.*
> *One important thing to keep in mind for those considering moving
> incomplete experiments from Theia to Hera...the version of the FV3GFS
> components being tested on Hera are off of the respective component
> master/develop branches. *This means that when updates for Hera come back
> to global-workflow it will be more advanced that GFSv15 and the develop
> branch will no longer reproduce current operations. Please take a look at
> the component versions you are using in your experiments on Theia and see
> if you can move to the latest versions (sync merge with the master/develop
> to get build updates when available) or if you will need build patches for
> your older versions. This check will be most critical for the DA and
> forecast parts of the FV3GFS.
> Thanks all, we're getting close to the end of this port! Thank you to
> everyone involved in the port!
> Kate Friedman
> NOAA/NWS/NCEP/EMC Engineering and Implementation Branch
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