diff --git a/doc/changelog.d/508.added.md b/doc/changelog.d/508.added.md
new file mode 100644
index 000000000..65c780d89
--- /dev/null
+++ b/doc/changelog.d/508.added.md
@@ -0,0 +1 @@
+provide a way for the user to limit number of threads
\ No newline at end of file
diff --git a/src/ansys/speos/core/simulation.py b/src/ansys/speos/core/simulation.py
index 52dc638f6..9db73dc4c 100644
--- a/src/ansys/speos/core/simulation.py
+++ b/src/ansys/speos/core/simulation.py
@@ -222,15 +222,27 @@ def set_source_paths(self, source_paths: List[str]) -> BaseSimulation:
     #         self._simulation_instance.geometries.geo_paths[:] = geo_paths
     #     return self
 
-    def compute_CPU(self) -> List[job_pb2.Result]:
+    def compute_CPU(self, threads_number: Optional[int] = None) -> List[job_pb2.Result]:
         """Compute the simulation on CPU.
 
+        Parameters
+        ----------
+        threads_number : int, optional
+            The number of threads used.
+            By default, ``None``, means the number of processor available.
+
         Returns
         -------
         List[ansys.api.speos.job.v2.job_pb2.Result]
             List of simulation results.
         """
         self._job.job_type = ProtoJob.Type.CPU
+
+        if threads_number is not None:
+            self._simulation_template.metadata["SimulationSetting::OPTThreadNumber"] = (
+                "int::" + str(threads_number)
+            )
+
         self.result_list = self._run_job()
         return self.result_list
 
diff --git a/tests/core/test_project.py b/tests/core/test_project.py
index 55baf6f7b..288ea37cf 100644
--- a/tests/core/test_project.py
+++ b/tests/core/test_project.py
@@ -370,6 +370,31 @@ def test_from_file(speos: Speos):
     assert ssr_data.irradiance_sensor_template.dimensions.x_sampling == 500
 
 
+def test_from_file_threads_limited(speos: Speos):
+    """Test change Number of threads used."""
+    # Create a project from a file
+    p = Project(
+        speos=speos,
+        path=str(
+            Path(test_path) / "LG_50M_Colorimetric_short.sv5" / "LG_50M_Colorimetric_short.sv5"
+        ),
+    )
+
+    assert len(p.scene_link.get().simulations) == 1
+
+    feat_sims = p.find(name=p.scene_link.get().simulations[0].name)
+    assert len(feat_sims) == 1
+
+    # Choose number of threads
+    threads_nb = 8
+
+    # Compute on CPU with the amount of threads selected
+    feat_sims[0].compute_CPU(threads_number=threads_nb)
+    assert feat_sims[0].simulation_template_link.get().metadata[
+        "SimulationSetting::OPTThreadNumber"
+    ] == "int::" + str(threads_nb)
+
+
 def test_find_geom(speos: Speos):
     """Test find geometry feature in a project."""
     # Create a project from a file