feature: Added condition to allow eval recipe.

Author: chiragvp-aws

src/sagemaker/pytorch/estimator.py

@@ -162,6 +162,21 @@ def _is_nova_recipe(recipe):
 
     return bool(has_nova_model) or bool(has_distillation)
 
+def _is_eval_recipe(recipe):
+    """Check if the recipe is an eval recipe.
+
+    An eval recipe is identified by:
+    1. Having a evaluation section
+
+    Args:
+        recipe (OmegaConf): The loaded recipe configuration
+
+    Returns:
+        bool: True if the recipe is an eval recipe, False otherwise
+    """
+    # Check for eval model
+    eval_config = recipe.get("evaluation", {})
+    return bool(eval_config)
 
 def _recipe_initialize_args(source_dir):
     """Initialize the arguments dictionary for recipe setup.
@@ -949,7 +964,7 @@ def _device_validate_and_get_type(kwargs, recipe):
         if "instance_type" not in kwargs:
             raise ValueError("Must pass instance type to estimator when using training recipes.")
 
-        if not _is_nova_recipe(recipe) and "trainer" not in recipe:
+        if not _is_nova_recipe(recipe) and "trainer" not in recipe  and not _is_eval_recipe(recipe):
             raise ValueError("Supplied recipe does not contain required field trainer.")
 
         instance_type = kwargs["instance_type"].split(".")[1]
@@ -973,15 +988,15 @@ def _device_handle_instance_count(kwargs, recipe):
         """
         # Check if instance_count is already provided in kwargs
 
-        is_nova = _is_nova_recipe(recipe)
+        is_nova_or_eval = _is_nova_recipe(recipe) or _is_eval_recipe(recipe)
         if "instance_count" in kwargs:
             # Warn if there are conflicting configurations in the recipe
             if "num_nodes" in recipe.get("trainer", {}):
                 logger.warning(
                     "Using instance_count argument to estimator to set number "
                     "of nodes. Ignoring trainer -> num_nodes in recipe."
                 )
-            if is_nova and "replicas" in recipe.get("run", {}):
+            if is_nova_or_eval and "replicas" in recipe.get("run", {}):
                 logger.warning(
                     "Using instance_count argument to estimator to set number "
                     "of nodes. Ignoring run -> replicas in recipe."
@@ -993,7 +1008,7 @@ def _device_handle_instance_count(kwargs, recipe):
             kwargs["instance_count"] = recipe["trainer"]["num_nodes"]
             return
 
-        if is_nova and "run" in recipe and "replicas" in recipe["run"]:
+        if is_nova_or_eval and "run" in recipe and "replicas" in recipe["run"]:
             kwargs["instance_count"] = recipe["run"]["replicas"]
             return