Add exception handling in subdevices example

as some devices (especially those in GH runners) cannot be partitioned into sub-devices, we print that the device cannot be partitioned and discard the exception

Author: ndgrigorian

examples/python/subdevices.py

@@ -43,7 +43,11 @@ def subdivide_root_cpu_device():
         "cpu_d is "
         + ("a root device." if is_root_device(cpu_d) else "not a root device.")
     )
-    sub_devs = cpu_d.create_sub_devices(partition=4)
+    try:
+        sub_devs = cpu_d.create_sub_devices(partition=4)
+    except dpctl.SyclSubDeviceCreationError:
+        print("Device partitioning was not successful.")
+        return
     print("Sub-device #EU: ", [d.max_compute_units for d in sub_devs])
     print("Sub-device is_root: ", [is_root_device(d) for d in sub_devs])
     print(
@@ -70,7 +74,7 @@ def subdivide_by_affinity(affinity="numa"):
             f"{len(sub_devs)} sub-devices were created with respective #EUs "
             f"being {[d.max_compute_units for d in sub_devs]}"
         )
-    except Exception:
+    except dpctl.SyclSubDeviceCreationError:
         print("Device partitioning by affinity was not successful.")
 
 
@@ -82,7 +86,11 @@ def create_subdevice_queue():
     """
     cpu_d = dpctl.SyclDevice("cpu")
     cpu_count = cpu_d.max_compute_units
-    sub_devs = cpu_d.create_sub_devices(partition=cpu_count // 2)
+    try:
+        sub_devs = cpu_d.create_sub_devices(partition=cpu_count // 2)
+    except dpctl.SyclSubDeviceCreationError:
+        print("Device partitioning was not successful.")
+        return
     multidevice_ctx = dpctl.SyclContext(sub_devs)
     # create a SyclQueue for each sub-device, using common
     # multi-device context