PDEPointResampler

class pinnx.callbacks.PDEPointResampler(period=100, pde_points=True, bc_points=False)

Resample the training points for PDE and/or BC losses every given period.

Parameters:

• period – How often to resample the training points (default is 100 iterations).

• pde_points – If True, resample the training points for PDE losses (default is True).

• bc_points – If True, resample the training points for BC losses (default is False; only supported by PyTorch and PaddlePaddle backend currently).

on_epoch_end()

Called at the end of every epoch.

on_train_begin()

Called at the beginning of trainer training.