edgellm / pinn-pytorch Goto Github PK
View Code? Open in Web Editor NEWDeep learning library for solving differential equations on top of PyTorch.
Deep learning library for solving differential equations on top of PyTorch.
Hi,
Thank you for this repository. Are you planning to add Navier-Stokes solver to the repository?
Baris.
When executing Burger 2D.ipynb
I get the following error:
model.train()
---------------------------------------------------------------------------
IndexError Traceback (most recent call last)
Input In [5], in <cell line: 1>()
----> 1 model.train()
File ~/code/pinn-pytorch/grad/pytorchPDE.py:111, in PytorchPDE.train(self, epochs, save_step, update_step, upload)
107 self.optimizer.zero_grad()
109 # forward + backward + optimize
--> 111 loss = self.loss()
113 # if(upload):
114 # neptune.log_metric('loss', loss.item())
116 loss.backward()
File ~/code/pinn-pytorch/grad/pytorchPDE.py:56, in PytorchPDE.loss(self)
48 second_grads = None
50 # print('train_tag_min: ', self.train_tag[:,-1].min())
51 # print('train_tag_max: ', self.train_tag[:,-1].max())
52 # print('predicts_min: ', predicts.min())
53 # print('first_grads_min: ', first_grads.min())
54 # print('second_grads_min: ', second_grads[0].min(), second_grads[0].min())
---> 56 domain_loss = self.pde(train_points, predicts, first_grads, second_grads)*self.train_tag[:,-1]
57 boundary_loss = 0
58 for i, bc in enumerate(self.data.bcs):
Input In [4], in pde(x, y, first_grads, second_grads)
1 def pde(x,y,first_grads,second_grads):
2 # print(second_grads)
----> 3 return first_grads[:,0] + y[:,0]*first_grads[:,1] - (0.01/np.pi)*second_grads[1][:,1]
IndexError: tuple index out of range
Package versions:
python=3.9.12
torch=1.11.0
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