[Ncep.list.nems.announce] trying to understand a recent NEMS commit...

weiyu yang weiyu.yang at noaa.gov
Fri Feb 28 17:23:15 UTC 2014

Hi, Gerhard,

For the commit, I sent e-mail and changed the NEMS ticket.  May be 
something wrong caused you did not received.  Very sorry for it.

For the second point, yes, this 6.3.0r did not change more for the 
system.  The main change is to make sure the ESMF 6.3.0r can be used on 
wcoss machine and add two new regression tests, one for nmm and one for 
GFS run, on wcoss machine, as well as installing the ESMF 6.3.0r library 
on wcoss and pointed to it when need it. I agree that everything can be 
re-code to make it to look to be nice.  If you like you may do anything 
you want.  Thank you very much.

By the way, you have to re-do the merge and tests might be caused by the 
Sarah's commission, which just before my commision, because after her 
commission, the all GSM baseline data changed.

Have a nice weekend

On 2/27/2014 7:47 PM, Gerhard Theurich wrote:
> Hi,
> I am a bit puzzled how I missed the commit announcement to the NEMS
> trunk that went in 19h ago as revision 37397. There are two issues:
> 1) It's hard to merge to the trunk when there are changes coming like
> that are not being announced. Yesterday I had merged branches/NUOPC
> changes to a trunk sandbox, resolved issues and started testing. I will
> repeat now...
> 2) The changes in question, updating to ESMF v6.3.0r in NEMS, I would
> have advised to approach the issue differently. Starting with v5.2.0r,
> ESMF guarantees a large degree of backward compatibility of the API. The
> idea behind added the "520rAPI" setting in NEMS was to use it on all
> 520rAPI compatible ESMF releases, which should be pretty much any future
> release. The same internal macros would be used in NEMS, and eventually,
> when the use of prior ESMF versions (like v3.1.0rpX) dies out in NEMS,
> all of that ESMF version specific macro jungle could be cut down. I
> think we should revisit the changes.
> Thanks,
> -Gerhard
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