def completed_rundir(configuration, tmpdir_factory):
tendency_dataset_path = tmpdir_factory.mktemp("tendencies")
if configuration == ConfigEnum.predictor:
model = get_mock_predictor()
model_path = str(tmpdir_factory.mktemp("model"))
fv3fit.dump(model, str(model_path))
config = get_ml_config(model_path)
elif configuration == ConfigEnum.nudging:
tendencies = _tendency_dataset()
tendencies.to_zarr(
str(tendency_dataset_path.join("ds.zarr")), consolidated=True
)
config = get_nudging_config(str(tendency_dataset_path.join("ds.zarr")))
elif configuration == ConfigEnum.microphys_emulation:
model_path = str(tmpdir_factory.mktemp("model").join("model.tf"))
model = create_emulation_model()
model.save(model_path)
config = get_emulation_config(model_path)
else:
raise NotImplementedError()
rundir = tmpdir_factory.mktemp("rundir").join("subdir")
run_native(config, str(rundir))
return rundir
def test_loaded_DenseModel_predicts_with_clipped_inputs(tmpdir):
hyperparameters = DenseHyperparameters(
["a", "b"],
["c"],
clip_config=PackerConfig({"a": {
"z": SliceConfig(None, 3)
}}),
)
model = DenseModel(["a", "b"], ["c"], hyperparameters)
nz = 5
dims = ["x", "y", "z"]
shape = (2, 2, nz)
arr = np.arange(np.prod(shape)).reshape(shape).astype(float)
input_data = xr.Dataset({
"a": (dims, arr),
"b": (dims, arr),
"c": (dims, arr + 1)
})
model.fit([input_data])
prediction = model.predict(input_data)
output_path = str(tmpdir.join("trained_model"))
fv3fit.dump(model, output_path)
model_loaded = fv3fit.load(output_path)
loaded_prediction = model_loaded.predict(input_data)
xr.testing.assert_allclose(prediction, loaded_prediction)
def test_adapter_regression(state, regtest, tmpdir_factory):
model_path = str(tmpdir_factory.mktemp("model"))
mock = get_mock_predictor(dQ1_tendency=1 / 86400)
fv3fit.dump(mock, model_path)
adapted_model = Adapter(
Config(model_path, {
"air_temperature": "dQ1",
"specific_humidity": "dQ2"
}), 900)
transform = StepTransformer(
adapted_model,
MockDerivedState(state),
"machine_learning",
diagnostic_variables={
"tendency_of_specific_humidity_due_to_machine_learning",
"tendency_of_air_temperature_due_to_machine_learning",
"tendency_of_internal_energy_due_to_machine_learning",
},
timestep=900,
)
def add_one_to_temperature():
state["air_temperature"] += 1
return {"some_diag": state["specific_humidity"]}
out = transform(add_one_to_temperature)()
# ensure tendency of internal energy is non-zero somewhere (GH#1433)
max = abs(out["tendency_of_internal_energy_due_to_machine_learning"]).max()
assert max.values.item() > 1e-6
# sort to make the check deterministic
regression_state(out, regtest)
def test_dump_and_load_default_maintains_prediction(model_type):
n_sample, n_tile, nx, ny, n_feature = 1, 6, 12, 12, 2
sample_func = get_uniform_sample_func(size=(n_sample, n_tile, nx, ny,
n_feature))
result = train_identity_model(model_type, sample_func=sample_func)
original_result = result.model.predict(result.test_dataset)
with tempfile.TemporaryDirectory() as tmpdir:
fv3fit.dump(result.model, tmpdir)
loaded_model = fv3fit.load(tmpdir)
loaded_result = loaded_model.predict(result.test_dataset)
xr.testing.assert_equal(loaded_result, original_result)
def main(args, unknown_args=None):
with open(args.training_config, "r") as f:
config_dict = yaml.safe_load(f)
if unknown_args is not None:
config_dict = get_arg_updated_config_dict(args=unknown_args,
config_dict=config_dict)
training_config = fv3fit.TrainingConfig.from_dict(config_dict)
with open(args.training_data_config, "r") as f:
training_data_config = loaders.BatchesLoader.from_dict(
yaml.safe_load(f))
fv3fit.set_random_seed(training_config.random_seed)
dump_dataclass(training_config, os.path.join(args.output_path,
"train.yaml"))
dump_dataclass(training_data_config,
os.path.join(args.output_path, "training_data.yaml"))
train_batches: loaders.typing.Batches = training_data_config.load_batches(
variables=training_config.variables)
if args.validation_data_config is not None:
with open(args.validation_data_config, "r") as f:
validation_data_config = loaders.BatchesLoader.from_dict(
yaml.safe_load(f))
dump_dataclass(
validation_data_config,
os.path.join(args.output_path, "validation_data.yaml"),
)
val_batches = validation_data_config.load_batches(
variables=training_config.variables)
else:
val_batches: Sequence[xr.Dataset] = []
if args.local_download_path:
train_batches = loaders.to_local(
train_batches, os.path.join(args.local_download_path, "train"))
val_batches = loaders.to_local(
val_batches, os.path.join(args.local_download_path, "validation"))
train = fv3fit.get_training_function(training_config.model_type)
model = train(
hyperparameters=training_config.hyperparameters,
train_batches=train_batches,
validation_batches=val_batches,
)
if len(training_config.derived_output_variables) > 0:
model = fv3fit.DerivedModel(model,
training_config.derived_output_variables)
fv3fit.dump(model, args.output_path)
def test_offline_diags_integration(data_path, grid_dataset_path): # noqa: F811
"""
Test the bash endpoint for computing offline diagnostics
"""
batches_kwargs = {
"needs_grid": False,
"res": "c8_random_values",
"timesteps_per_batch": 1,
"timesteps": ["20160801.001500"],
}
trained_model = fv3fit.testing.ConstantOutputPredictor(
input_variables=["air_temperature", "specific_humidity"],
output_variables=["dQ1", "dQ2"],
)
trained_model.set_outputs(dQ1=np.zeros([19]), dQ2=np.zeros([19]))
data_config = loaders.BatchesFromMapperConfig(
loaders.MapperConfig(
function="open_zarr",
kwargs={"data_path": data_path},
),
function="batches_from_mapper",
kwargs=batches_kwargs,
)
with tempfile.TemporaryDirectory() as tmpdir:
model_dir = os.path.join(tmpdir, "trained_model")
fv3fit.dump(trained_model, model_dir)
data_config_filename = os.path.join(tmpdir, "data_config.yaml")
with open(data_config_filename, "w") as f:
yaml.safe_dump(dataclasses.asdict(data_config), f)
compute_diags_args = ComputeDiagsArgs(
model_path=model_dir,
output_path=os.path.join(tmpdir, "offline_diags"),
data_yaml=data_config_filename,
grid=grid_dataset_path,
)
compute.main(compute_diags_args)
if isinstance(data_config, loaders.BatchesFromMapperConfig):
assert "transect_lon0.nc" in os.listdir(
os.path.join(tmpdir, "offline_diags"))
create_report_args = CreateReportArgs(
input_path=os.path.join(tmpdir, "offline_diags"),
output_path=os.path.join(tmpdir, "report"),
)
create_report(create_report_args)
with open(os.path.join(tmpdir, "report/index.html")) as f:
report = f.read()
if isinstance(data_config, loaders.BatchesFromMapperConfig):
assert "Transect snapshot at" in report
def test_constant_model_predict_after_dump_and_load(input_variables,
output_variables, nz):
gridded_dataset = get_gridded_dataset(nz)
outputs = get_first_columns(gridded_dataset, output_variables)
predictor = get_predictor(input_variables, output_variables, outputs)
with tempfile.TemporaryDirectory() as tempdir:
fv3fit.dump(predictor, tempdir)
predictor = fv3fit.load(tempdir)
ds_pred = predictor.predict(gridded_dataset)
assert sorted(list(ds_pred.data_vars.keys())) == sorted(output_variables)
for name in output_variables:
assert np.all(
stack_non_vertical(ds_pred[name]).values == outputs[name][None, :])
def test_dump_and_load(tmpdir):
derived_model = DerivedModel(
base_model, derived_output_variables=["net_shortwave_sfc_flux_derived"],
)
ds_in = xr.Dataset(
data_vars={
"input": xr.DataArray(np.zeros([3, 3, 5]), dims=["x", "y", "z"],),
"surface_diffused_shortwave_albedo": xr.DataArray(
np.zeros([3, 3]), dims=["x", "y"],
),
}
)
prediction = derived_model.predict(ds_in)
fv3fit.dump(derived_model, str(tmpdir))
loaded_model = fv3fit.load(str(tmpdir))
prediction_after_load = loaded_model.predict(ds_in)
assert prediction_after_load.identical(prediction)
def test_reloaded_model_gives_same_outputs(sample_dim_name, dt):
train_dataset = get_train_dataset(sample_dim_name, dt)
model = _BPTTTrainer(
sample_dim_name,
["a", "b"],
n_units=32,
n_hidden_layers=4,
kernel_regularizer=None,
train_batch_size=48,
optimizer="adam",
)
model.fit_statistics(train_dataset)
model.fit(train_dataset)
with tempfile.TemporaryDirectory() as tmpdir:
fv3fit.dump(model.predictor_model, tmpdir)
loaded = fv3fit.load(tmpdir)
first_timestep = train_dataset.isel(time=0)
reference_output = model.predictor_model.predict(first_timestep)
# test that loaded model gives the same predictions
loaded_output = loaded.predict(first_timestep)
xr.testing.assert_equal(reference_output, loaded_output)
)
model.fit_statistics(ds)
train_filenames = filenames[:-1]
validation = xr.open_dataset(filenames[-1])
base_epoch = 0
for i_epoch in range(config["total_epochs"]):
epoch = base_epoch + i_epoch
print(f"starting epoch {epoch}")
for i, ds in enumerate(
loaders.OneAheadIterator(shuffled(train_filenames), function=load_dataset)
):
model.fit(ds, epochs=1)
val_loss = model.loss(validation)
print(f"val_loss: {val_loss}")
dirname = os.path.join(
args.model_output_dir, f"model-epoch_{epoch:03d}-loss_{val_loss:.04f}"
)
os.makedirs(dirname, exist_ok=True)
# dump doesn't need an estimator's fit methods, it only needs .dump to exist
# which predictor_model has defined
fv3fit.dump(model.predictor_model, dirname) # type: ignore
if i_epoch == config["decrease_learning_rate_epoch"] - 1:
optimizer_kwargs["lr"] = config["decreased_learning_rate"]
# train_keras_model will not be None because we call fit above
# (assuming there is any training data)
model.train_keras_model.compile( # type: ignore
optimizer=optimizer_class(**optimizer_kwargs), loss=model.losses
)
