Fixup test dynamo failures

test/dynamo/test_dynamo.py

@@ -119,6 +119,23 @@ def test_simple_model_automoves_tensors(self):
     self.assertTrue(res_cpu_3.device == res_xla_dynamo_different.device)
     self.assertTrue(torch.allclose(res_cpu_3, res_xla_dynamo_different))
 
+  def test_resnet_all_cpu_tensor_moved_to_xla(self):
+    met.clear_all()
+    input = torch.randn(4, 3, 224, 224)
+    resnet18 = torchvision.models.resnet18()
+    resnet18.eval()
+    dynamo_resnet18_cpu = torch.compile(resnet18, backend='openxla')
+
+    # input and model weight on cpu
+    with warnings.catch_warnings(record=True) as w:
+      res = dynamo_resnet18_cpu(input)
+      # there should be 18 paramters + 1 input all moved to XLA Device.
+      self.assertTrue(len(w) == 0)
+
+    # Ops should work automatically and XLA should "just work"
+    self.assertTrue(len(met.counter_names()) > 1)
+    self.assertIn('MarkStep', met.counter_names())
+
   def test_fn_without_input(self):
 
     def fn_without_input(device):
@@ -542,7 +559,7 @@ def test_resnet18(self):
         met.metric_data('RunCachedGraphOutputData')[0], sample_count * 3)
 
 
-class DynamErrorMessageTest(unittest.TestCase):
+class DynamoErrorMessageTest(unittest.TestCase):
 
   def test_mixed_cpu_tensor(self):
     device = xm.xla_device()
@@ -566,23 +583,6 @@ def test_mixed_cpu_tensor(self):
     self.assertTrue(
         'found two different devices' in context.exception.__str__())
 
-  def test_all_cpu_tensor(self):
-    met.clear_all()
-    input = torch.randn(4, 3, 224, 224)
-    resnet18 = torchvision.models.resnet18()
-    resnet18.eval()
-    dynamo_resnet18_cpu = torch.compile(resnet18, backend='openxla')
-    # input and model weight on cpu
-    with warnings.catch_warnings(record=True) as w:
-      res = dynamo_resnet18_cpu(input)
-      # there should be 18 paramters + 1 input
-      self.assertGreater(len(w), 15)
-      self.assertIn('Found tensor with shape torch.Size', str(w[0].message))
-    # no XLA operation should happens except a empty mark_step. Partitioner should offload all CPU
-    # ops to CPU.
-    self.assertEqual(len(met.counter_names()), 1)
-    self.assertIn('MarkStep', met.counter_names())
-
 
 if __name__ == '__main__':
   test = unittest.main()

torch_xla/core/dynamo_bridge.py

@@ -613,7 +613,7 @@ def extract_compiled_graph(xla_model: torch.fx.GraphModule, input_args):
 
   for xla_arg in xla_args:
     assert xla_arg.device.type == 'xla', "Found tensor with shape " + str(
-        xla_arg.size()) + " on " + str(xla_arg.device)
+        xla_arg.size()) + " on non-XLA device: " + str(xla_arg.device)
 
   cloned_args = [
       torch.clone(xla_arg) if isinstance(xla_arg, torch.Tensor) else xla_arg