[Ncep.list.fv3-announce] NEMSfv3gfs and FV3 git repository updates

Jeffrey Whitaker - NOAA Federal jeffrey.s.whitaker at noaa.gov
Sun Dec 24 15:45:32 UTC 2017


Moorthi:  Can you forward Rusty's suggestion in case we run into the same
problem?

-Jeff

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Jeffrey S. Whitaker         Phone  : (303)497-6313
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On Sun, Dec 24, 2017 at 8:23 AM, Shrinivas Moorthi - NOAA Federal <
shrinivas.moorthi at noaa.gov> wrote:

> With Rusty’s suggestion, my merged code is working now without the bus
> error.
> Moorthi
>
> Sent from my iPhone
>
> On Dec 23, 2017, at 8:10 PM, Shrinivas Moorthi - NOAA Federal <
> shrinivas.moorthi at noaa.gov> wrote:
>
> Unfortunately, merging my branch with master causes ‘bus’ error!
> I am stuck and don’t know what to do!
> Moorrhi
>
> Sent from my iPhone
>
> On Dec 22, 2017, at 8:27 AM, Jun Wang - NOAA Affiliate <jun.wang at noaa.gov>
> wrote:
>
> Dear all,
>
> Following changes were committed to the NEMSfv3gfs and Fv3 git
> repositories this morning:
>
> Task #44641 <https://vlab.ncep.noaa.gov/redmine/issues/44641>: the
> improved evaporation scheme over the bare soil
> The current value of the key soil parameter (residual soil moisture) was
> set to the same as wilting point, which results in underestimating the
> evaporation over bare soil. In this ticket, this parameter is updated with
> the value from EC model. The forecast only experiments show both surface
> temperature and humidity forecasts are improved significantly.
>
> Task #44818 <https://vlab.ncep.noaa.gov/redmine/issues/44818>: fv3
> reproducibility issue for Gaussian grid output
> Non-reproducibility issue showed up in some EnKF runs. In this ticket,
> options are added to ESMF function calls to ensure reproducibility and ESMF
> lib is recompiled with precise option. EnKF runs reproduce with this fix.
>
> Task #44551 <https://vlab.ncep.noaa.gov/redmine/issues/44551>:
> remove/reduce namelist file IO
> This task is to reduce the number of IO calls to the current atmospheric
> namelist file "input.nml". The code is now reading the namelist in during
> mpp_init on a single processor, storing it into a character variable, and
> broadcasting this to all MPI ranks. All subsequent namelist reads would
> then use Fortran internal file semantics to read from the character
> variable. With this fix, the io profile test shows that input.nml
> references have been reduced from 44458 to only 4.
>
>
> Thanks.
>
>
> Jun
>
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