40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
from pina.solvers import PINN
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from pina.trainer import Trainer
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from pina.model import FeedForward
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from pina.callbacks import MetricTracker
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from pina.problem.zoo import Poisson2DSquareProblem as Poisson
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# make the problem
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poisson_problem = Poisson()
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boundaries = ['g1', 'g2', 'g3', 'g4']
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n = 10
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poisson_problem.discretise_domain(n, 'grid', domains=boundaries)
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poisson_problem.discretise_domain(n, 'grid', domains='D')
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model = FeedForward(len(poisson_problem.input_variables),
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len(poisson_problem.output_variables))
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# make the solver
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solver = PINN(problem=poisson_problem, model=model)
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def test_metric_tracker_constructor():
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MetricTracker()
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# def test_metric_tracker_routine(): #TODO revert
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# # make the trainer
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# trainer = Trainer(solver=solver,
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# callbacks=[
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# MetricTracker()
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# ],
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# accelerator='cpu',
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# max_epochs=5)
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# trainer.train()
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# # get the tracked metrics
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# metrics = trainer.callbacks[0].metrics
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# # assert the logged metrics are correct
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# logged_metrics = sorted(list(metrics.keys()))
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# assert logged_metrics == ['train_loss_epoch', 'train_loss_step', 'val_loss']
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