feat: Add some logging calls in get_mesh() (#3650)

Author: mkundu1

src/ansys/fluent/core/logging.py

@@ -61,6 +61,8 @@ def get_default_config() -> dict:
                                     'maxBytes': 10485760}},
      'loggers': {'pyfluent.datamodel': {'handlers': ['pyfluent_file'],
                                         'level': 'DEBUG'},
+                 'pyfluent.field_data': {'handlers': ['pyfluent_file'],
+                                         'level': 'DEBUG'},
                  'pyfluent.general': {'handlers': ['pyfluent_file'],
                                       'level': 'DEBUG'},
                  'pyfluent.launcher': {'handlers': ['pyfluent_file'],

src/ansys/fluent/core/logging_config.yaml

@@ -43,3 +43,6 @@ loggers:
   pyfluent.post_objects:
     level: DEBUG
     handlers: [pyfluent_file]
+  pyfluent.field_data:
+    level: DEBUG
+    handlers: [pyfluent_file]

src/ansys/fluent/core/services/field_data.py

@@ -4,6 +4,7 @@
 from enum import Enum
 from functools import reduce
 import io
+import logging
 from typing import Callable, Dict, List, Tuple
 import weakref
 
@@ -22,6 +23,8 @@
 from ansys.fluent.core.services.streaming import StreamingService
 from ansys.fluent.core.utils.deprecate import deprecate_argument, deprecate_arguments
 
+logger = logging.getLogger("pyfluent.field_data")
+
 
 def override_help_text(func, func_to_be_wrapped):
     """Override function help text."""
@@ -1074,10 +1077,9 @@ class Mesh:
     Attributes:
     -----------
     nodes : list[Node]
-        List of nodes in the mesh. Sorted by Fluent's node ID.
+        List of nodes in the mesh.
     elements : list[Element]
-        List of elements in the mesh. Unsorted as we want to correlate with the
-        solution data retrieved via svar service.
+        List of elements in the mesh.
     """
 
     nodes: list[Node]
@@ -1480,19 +1482,25 @@ def get_mesh(self, zone: str | int) -> Mesh:
             raise NotImplementedError("Face zone mesh is not supported.")
 
         # Mesh data is retrieved from the root domain in Fluent
-        request = FieldDataProtoModule.GetSolverMeshNodesRequest(
+        logger.info(f"Getting nodes data for zone {zone_info._id}")
+        nodes_request = FieldDataProtoModule.GetSolverMeshNodesRequest(
             domain_id=ROOT_DOMAIN_ID, thread_id=zone_info._id
         )
-        response = self._service.get_solver_mesh_nodes(request)
-        nodes = response.nodes
-        nodes = [Node(_id=node.id, x=node.x, y=node.y, z=node.z) for node in nodes]
-        nodes = sorted(nodes, key=lambda x: x._id)
-        node_index_by_id = {node._id: index for index, node in enumerate(nodes)}
-        request = FieldDataProtoModule.GetSolverMeshElementsRequest(
+        nodes_response = self._service.get_solver_mesh_nodes(nodes_request)
+        logger.info("Nodes data received")
+        logger.info(f"Getting elements for zone {zone_info._id}")
+        elements_request = FieldDataProtoModule.GetSolverMeshElementsRequest(
             domain_id=ROOT_DOMAIN_ID, thread_id=zone_info._id
         )
-        response = self._service.get_solver_mesh_elements(request)
-        elements_pb = response.elements
+        elements_response = self._service.get_solver_mesh_elements(elements_request)
+        logger.info("Elements data received")
+        logger.info("Constructing nodes structure in PyFluent")
+        nodes = nodes_response.nodes
+        nodes = [Node(_id=node.id, x=node.x, y=node.y, z=node.z) for node in nodes]
+        node_index_by_id = {node._id: index for index, node in enumerate(nodes)}
+        logger.info("Nodes structure constructed")
+        logger.info("Constructing elements structure in PyFluent")
+        elements_pb = elements_response.elements
         elements = []
         for element_pb in elements_pb:
             element_type = CellElementType(element_pb.element_type)
@@ -1515,4 +1523,6 @@ def get_mesh(self, zone: str | int) -> Mesh:
                     node_indices=[node_index_by_id[id] for id in element_pb.node_ids],
                 )
             elements.append(element)
+        logger.info("Elements structure constructed")
+        logger.info("Returning mesh")
         return Mesh(nodes=nodes, elements=elements)