GAROM solver loss update

Changing from `LpLoss` to `PowerLoss`

pina/solvers/garom.py

@@ -1,4 +1,5 @@
-""" Module for PINN """
+""" Module for GAROM """
+
 import torch
 try:
     from torch.optim.lr_scheduler import LRScheduler  # torch >= 2.0
@@ -8,7 +9,7 @@ except ImportError:
 from torch.optim.lr_scheduler import ConstantLR
 from .solver import SolverInterface
 from ..utils import check_consistency
-from ..loss import LossInterface, LpLoss
+from ..loss import LossInterface, PowerLoss
 from torch.nn.modules.loss import _Loss
 
 
@@ -58,7 +59,7 @@ class GAROM(SolverInterface):
             extra features for each.
         :param torch.nn.Module loss: The loss function used as minimizer,
             default ``None``. If ``loss`` is ``None`` the defualt
-            ``LpLoss(p=1)`` is used, as in the original paper.
+            ``PowerLoss(p=1)`` is used, as in the original paper.
         :param torch.optim.Optimizer optimizer_generator: The neural
             network optimizer to use for the generator network
             , default is `torch.optim.Adam`.
@@ -102,7 +103,7 @@ class GAROM(SolverInterface):
 
         # set loss
         if loss is None:
-            loss = LpLoss(p=1)
+            loss = PowerLoss(p=1)
         
         # check consistency 
         check_consistency(scheduler_generator, LRScheduler, subclass=True)