diff --git a/imperative/python/megengine/functional/tensor.py b/imperative/python/megengine/functional/tensor.py
index ba729c68818c4be951ffb70f12f59c99bb1d8d60..0266da1336153325fe66ff44b8e0e2b4f7feab8a 100644
--- a/imperative/python/megengine/functional/tensor.py
+++ b/imperative/python/megengine/functional/tensor.py
@@ -910,7 +910,7 @@ def linspace(
         import numpy as np
         import megengine.functional as F
 
-        a = F.linspace(3,10,5)
+        a = F.linspace(3, 10, 5)
         print(a.numpy())
 
     Outputs:
@@ -920,9 +920,20 @@ def linspace(
         [ 3.    4.75  6.5   8.25 10.  ]
 
     """
-    start = Tensor(start, device=device)
-    stop = Tensor(stop, device=device)
-    num = Tensor(num, device=device)
+    for item in (start, stop, num):
+        cur_device = getattr(item, "device", None)
+        if device is None:
+            device = cur_device
+        else:
+            if not (cur_device is None or device == cur_device):
+                raise ("ambiguous device for linspace opr")
+
+    if not isinstance(start, Tensor):
+        start = Tensor(start, device=device)
+    if not isinstance(stop, Tensor):
+        stop = Tensor(stop, device=device)
+    if not isinstance(num, Tensor):
+        num = Tensor(num, device=device)
 
     op = builtin.Linspace(comp_node=device)
     (result,) = apply(op, start, stop, num)
diff --git a/imperative/python/test/unit/functional/test_functional.py b/imperative/python/test/unit/functional/test_functional.py
index 21d22c777cc3fa1336f3321dec9b446a0140554a..d6df37361c5194f04b6298a54a065e0475e4c3fb 100644
--- a/imperative/python/test/unit/functional/test_functional.py
+++ b/imperative/python/test/unit/functional/test_functional.py
@@ -114,18 +114,12 @@ def test_matmul():
         {"input": [data3, data4]},
         {"input": [data4, data5]},
     ]
-    for _ in range(0, batch_size):
-        # FIXME: remove test_trace=False in the future
-        opr_test(
-            cases, F.matmul, test_trace=False, ref_fn=np.matmul,
-        )
+    opr_test(cases, F.matmul, ref_fn=np.matmul)
 
-    # FIXME: remove test_trace=False in the future
     opr_test(
         [{"input": [data1, data4]}],
         F.matmul,
         ref_fn=lambda x, y: np.matmul(x, y.transpose(0, 1, 3, 2)),
-        test_trace=False,
         transpose_b=True,
     )
 
diff --git a/imperative/python/test/unit/functional/test_tensor.py b/imperative/python/test/unit/functional/test_tensor.py
index c24cafc37bcebc286c44d92a2eda960b99d9d75c..b4039fc7c73aeb99d02d5c4f97c85ca5b1bc9e95 100644
--- a/imperative/python/test/unit/functional/test_tensor.py
+++ b/imperative/python/test/unit/functional/test_tensor.py
@@ -162,24 +162,30 @@ def test_linspace():
         {"input": [1, 9, 9]},
         {"input": [3, 10, 8]},
     ]
-    # FIXME: remove test_trace=False in the future
     opr_test(
         cases,
         F.linspace,
         ref_fn=lambda start, end, step: np.linspace(start, end, step, dtype=np.float32),
-        test_trace=False,
     )
 
     cases = [
         {"input": [9, 1, 9]},
         {"input": [10, 3, 8]},
     ]
-    # FIXME: remove test_trace=False in the future
     opr_test(
         cases,
         F.linspace,
         ref_fn=lambda start, end, step: np.linspace(start, end, step, dtype=np.float32),
-        test_trace=False,
+    )
+
+    cases = [
+        {"input": [1, tensor(9), 9]},
+        {"input": [tensor(1), 9, tensor(9)]},
+    ]
+    opr_test(
+        cases,
+        F.linspace,
+        ref_fn=lambda start, end, step: np.linspace(1, 9, 9, dtype=np.float32),
     )
 
 
@@ -188,36 +194,30 @@ def test_arange():
         {"input": [1, 9, 1]},
         {"input": [2, 10, 2]},
     ]
-    # FIXME: remove test_trace=False in the future
     opr_test(
         cases,
         F.arange,
         ref_fn=lambda start, end, step: np.arange(start, end, step, dtype=np.float32),
-        test_trace=False,
     )
 
     cases = [
         {"input": [9, 1, -1]},
         {"input": [10, 2, -2]},
     ]
-    # FIXME: remove test_trace=False in the future
     opr_test(
         cases,
         F.arange,
         ref_fn=lambda start, end, step: np.arange(start, end, step, dtype=np.float32),
-        test_trace=False,
     )
 
     cases = [
         {"input": [9.3, 1.2, -0.5]},
         {"input": [10.3, 2.1, -1.7]},
     ]
-    # FIXME: remove test_trace=False in the future
     opr_test(
         cases,
         F.arange,
         ref_fn=lambda start, end, step: np.arange(start, end, step, dtype=np.float32),
-        test_trace=False,
     )
 
 
@@ -289,8 +289,7 @@ def test_broadcast():
         {"input": [data1, output1_shape], "output": output1_shape},
         {"input": [data2, output2_shape], "output": output2_shape},
     ]
-    # FIXME: remove test_trace=False in the future
-    opr_test(cases, F.broadcast_to, compare_fn=compare_fn, test_trace=False)
+    opr_test(cases, F.broadcast_to, compare_fn=compare_fn)
 
     x = F.ones((2, 1, 3))
     with pytest.raises(RuntimeError):