Raise error when resource_dict is used in function parameters

pympipool/shared/executorbase.py

@@ -13,6 +13,10 @@
 from pympipool.shared.communication import interface_bootup
 from pympipool.shared.thread import RaisingThread
 from pympipool.shared.interface import BaseInterface
+from pympipool.shared.inputcheck import (
+    check_resource_dict,
+    check_resource_dict_is_empty,
+)
 
 
 class ExecutorBase(FutureExecutor):
@@ -66,10 +70,8 @@ def submit(self, fn: callable, *args, resource_dict: dict = {}, **kwargs):
         Returns:
             A Future representing the given call.
         """
-        if len(resource_dict) > 0:
-            raise ValueError(
-                "When block_allocation is enabled, the resource requirements have to be defined on the executor level."
-            )
+        check_resource_dict_is_empty(resource_dict=resource_dict)
+        check_resource_dict(function=fn)
         f = Future()
         self._future_queue.put({"fn": fn, "args": args, "kwargs": kwargs, "future": f})
         return f
@@ -171,6 +173,7 @@ def submit(self, fn: callable, *args, resource_dict: dict = {}, **kwargs):
         Returns:
             A Future representing the given call.
         """
+        check_resource_dict(function=fn)
         f = Future()
         self._future_queue.put(
             {

pympipool/shared/inputcheck.py

@@ -1,3 +1,6 @@
+import inspect
+
+
 def check_oversubscribe(oversubscribe):
     if oversubscribe:
         raise ValueError(
@@ -38,3 +41,18 @@ def check_executor(executor):
         raise ValueError(
             "The executor parameter is only supported for the flux framework backend."
         )
+
+
+def check_resource_dict(function):
+    if "resource_dict" in inspect.signature(function).parameters.keys():
+        raise ValueError(
+            "The parameter resource_dict is used internally in pympipool, "
+            "so it cannot be used as parameter in the submitted functions."
+        )
+
+
+def check_resource_dict_is_empty(resource_dict):
+    if len(resource_dict) > 0:
+        raise ValueError(
+            "When block_allocation is enabled, the resource requirements have to be defined on the executor level."
+        )

tests/test_executor_backend_mpi_noblock.py

@@ -16,6 +16,10 @@ def mpi_funct(i):
     return i, size, rank
 
 
+def resource_dict(resource_dict):
+    return resource_dict
+
+
 class TestExecutorBackend(unittest.TestCase):
     def test_meta_executor_serial(self):
         with Executor(
@@ -58,3 +62,13 @@ def test_errors(self):
                 hostname_localhost=True,
                 backend="mpi",
             )
+        with self.assertRaises(ValueError):
+            with Executor(
+                max_cores=1, hostname_localhost=True, backend="mpi", block_allocation=False
+            ) as exe:
+                exe.submit(resource_dict, resource_dict={})
+        with self.assertRaises(ValueError):
+            with Executor(
+                max_cores=1, hostname_localhost=True, backend="mpi", block_allocation=True
+            ) as exe:
+                exe.submit(resource_dict, resource_dict={})