abiml: add support for orb and sevenn

abipy/ml/aseml.py

@@ -1466,6 +1466,8 @@ class CalcBuilder:
         "nequip",
         "metatensor",
         "deepmd",
+        "orb",
+        "sevenn",
     ]
 
     def __init__(self, name: str, dftd3_args=None, **kwargs):
@@ -1740,6 +1742,45 @@ class MyDpCalculator(_MyCalculator, DP):
             cls = MyDpCalculator if with_delta else DP
             calc = cls(self.model_path, **self.calc_kwargs)
 
+        elif self.nn_type == "orb":
+            try:
+                from orb_models.forcefield import pretrained
+                from orb_models.forcefield.calculator import ORBCalculator
+            except ImportError as exc:
+                raise ImportError("orb not installed. See https://github.com/orbital-materials/orb-models") from exc
+
+
+            class MyOrbCalculator(_MyCalculator, ORBCalculator):
+                """Add abi_forces and abi_stress"""
+
+            model_name = "orb-v1" if self.model_name is None else self.model_name
+            # Mapping model_name --> function returning the model e.g. {"orb-v1": orb_v1}
+            f = pretrained.ORB_PRETRAINED_MODELS[model_name]
+            model = f()
+
+            cls = MyOrbCalculator if with_delta else OrbCalculator
+            calc = cls(model, **self.calc_kwargs)
+
+        elif self.nn_type == "sevenn":
+            try:
+                from sevenn.sevennet_calculator import SevenNetCalculator
+            except ImportError as exc:
+                raise ImportError("sevenn not installed. See https://github.com/MDIL-SNU/SevenNet") from exc
+
+            class MySevenNetCalculator(_MyCalculator, SevenNetCalculator):
+                """Add abi_forces and abi_stress"""
+
+            # 7net-0, SevenNet-0, 7net-0_22May2024, 7net-0_11July2024 ...
+            # model_name = "7net-0" if self.model_name is None else self.model_name
+            # SevenNet-0 (11July2024)
+            # This model was trained on MPtrj. We suggest starting with this model as we found that it performs better
+            # than the previous SevenNet-0 (22May2024).
+            # Check Matbench Discovery leaderborad for this model's performance on materials discovery. For more information, click here.
+
+            model_name = "SevenNet-0" if self.model_name is None else self.model_name
+            cls = MySevenNetCalculator if with_delta else SevenNetCalculator
+            calc = MySevenNetCalculator(model=model_name, **self.calc_kwargs)
+
         else:
             raise ValueError(f"Invalid {self.nn_type=}")