[Ncep.list.nems.announce] Correct MPI tag collision issue and increase array sizes to support integration of more domains

[Thiago Quirino - NOAA Federal]

Good morning, all. Please see trunk commit message below:


Thiago.Quirino at fe5;/home/Thiago.Quirino/MODELS/NEMS_trunk> svn commit -F log
Sending        src/atmos/nmm/module_CLOCKTIMES.F90
Sending        src/atmos/nmm/module_NMM_GRID_COMP.F90
Sending        src/atmos/nmm/module_PARENT_CHILD_CPL_COMP.F90
Sending        src/atmos/phys/module_SF_GFDL.F90
Sending        tests/Compile_zeus.log
Sending        tests/RegressionTests_zeus.log
Transmitting file data ......
Committed revision 46820.


Have a great day,
Thiago.


On Mon, Oct 20, 2014 at 10:42 AM, Thiago Quirino - NOAA Federal <
thiago.quirino at noaa.gov> wrote:

> Good morning, everyone.
>
> I am ready to commit to the trunk. Regression tests were ran on Zeus and
> all were passed successfully. The modifications are simple and don't change
> the results. Please see below a list of modified files in Zeus:
>
> Thiago.Quirino at fe2;/home/Thiago.Quirino/MODELS/NEMS_trunk> svn status
> M       tests/RegressionTests_zeus.log
> M       tests/Compile_zeus.log
> M       src/atmos/phys/module_SF_GFDL.F90
> M       src/atmos/nmm/module_CLOCKTIMES.F90
> M       src/atmos/nmm/module_PARENT_CHILD_CPL_COMP.F90
> M       src/atmos/nmm/module_NMM_GRID_COMP.F90
>
> Please let me know of any issues.
>
> All the best,
> Thiago.
>
>
> On Tue, Oct 14, 2014 at 11:07 AM, Thiago Quirino - NOAA Federal <
> thiago.quirino at noaa.gov> wrote:
>
>> Good morning, all. I would like to commit some changes after Jun Wang's
>> commit .
>>
>> (1) A small fix to a rare event that can take place during nest motion.
>> MPI tags generated by subroutine PARENT_SENDS_CHILD_DATA_LIMITS in
>> "module_PARENT_CHILD_CPL_COMP.F90" may collide with the MPI tag expected by
>> subroutine CHILDREN_RECV_PARENT_DATA. We increased the constant
>> "PARENT_SHIFT_TAG=1113" used in the generation of tags used by the related
>> subroutines PARENTS_SEND_CHILD_DATA and CHILDREN_RECV_PARENT_DATA to
>> "PARENT_SHIFT_TAG=1e8". This simple solution causes the MPI tags to be
>> shifted out of the collision range. It also does not induce tag collisions
>> with other MPI calls in the code.
>>
>> (2) We are starting to run NMMB with large number of domains. Tom has
>> indicated a few arrays whose dimension should be increased to successfully
>> run the model with increased number of domains. The modifications are to
>> "module_CLOCKTIMES.F90" and "module_NMM_GRID_COMP.F90".
>>
>> (3) In "src/atmos/phys/module_SF_GFDL.F90", three total calls to
>> subroutine "wrf_debug" seem to be generating a lot unnecessary log output.
>> We propose to comment those out.
>>
>> I will post the code and the list of modified files after Jun Wang's
>> commit.
>>
>> Thank you so much. This is my first time submitting a ticket so please
>> let me know of any issues or if I am doing something wrong.
>>
>> Best,
>> Thiago.
>>
>
>
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