NEMS configuration generation

Project description

NEMSpy

NEMSpy generates configuration files (nems.configure, config.rc, model_configure, atm_namelist.rc) for coupled modeling applications run with a compiled NEMS binary (not included).

NEMS implements the National Unified Operational Prediction Capability (NUOPC), and configuration files built for NEMS will also work for most NUOPC applications.

Usage:

from datetime import datetime, timedelta

from nemspy import ModelingSystem
from nemspy.model import ADCIRCEntry, AtmosphericMeshEntry, WaveWatch3MeshEntry

# model run time
start_time = datetime(2020, 6, 1)
duration = timedelta(days=1)
end_time = start_time + duration

# returning interval of main run sequence
interval = timedelta(hours=1)

# directory to which configuration files should be written
output_directory = '~/nems_configuration/'

# model entries
ocean_model = ADCIRCEntry(
    processors=11,
    Verbosity='max',
    DumpFields=False
)
atmospheric_mesh = AtmosphericMeshEntry(
    filename='~/wind_atm_fin_ch_time_vec.nc',
    processors=1
)
wave_mesh = WaveWatch3MeshEntry(
    filename='~/ww3.Constant.20151214_sxy_ike_date.nc',
    processors=1
)

# instantiate model system with model entries
nems = ModelingSystem(
    start_time=start_time,
    end_time=end_time,
    interval=interval,
    ocn=ocean_model,
    atm=atmospheric_mesh,
    wav=wave_mesh,
)

# form connections between models
nems.connect('ATM', 'OCN')
nems.connect('WAV', 'OCN')

# define execution order
nems.sequence = [
    'ATM -> OCN',
    'WAV -> OCN',
    'ATM',
    'WAV',
    'OCN',
]

# write configuration files to the given directory
nems.write(
    directory=output_directory,
    overwrite=True,
    include_version=True
)

Output:

nems.configure

# `nems.configure` generated with NEMSpy 0.5.0
# EARTH #
EARTH_component_list: ATM WAV OCN
EARTH_attributes::
  Verbosity = off
::

# ATM #
ATM_model:                      atmesh
ATM_petlist_bounds:             0 0
ATM_attributes::
  Verbosity = off
::

# WAV #
WAV_model:                      ww3data
WAV_petlist_bounds:             1 1
WAV_attributes::
  Verbosity = off
::

# OCN #
OCN_model:                      adcirc
OCN_petlist_bounds:             2 12
OCN_attributes::
  Verbosity = max
  DumpFields = false
::

# Run Sequence #
runSeq::
  @3600
    ATM -> OCN   :remapMethod=redist
    WAV -> OCN   :remapMethod=redist
    ATM
    WAV
    OCN
  @
::

model_configure

# `model_configure` generated with NEMSpy 0.5.0
total_member:            1
print_esmf:              .true.
namelist:                atm_namelist
PE_MEMBER01:             13
start_year:              2020
start_month:             6
start_day:               1
start_hour:              0
start_minute:            0
start_second:            0
nhours_fcst:             24
RUN_CONTINUE:            .false.
ENS_SPS:                 .false.

config.rc

# `config.rc` generated with NEMSpy 0.5.0
 atm_dir: ~
 atm_nam: wind_atm_fin_ch_time_vec.nc
 wav_dir: ~
 wav_nam: ww3.Constant.20151214_sxy_ike_date.nc

Project details

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1.0.8

Mar 29, 2022

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Dec 28, 2021

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Jun 30, 2021

This version

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