enable workflow

Author: refraction-ray

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ jobs:
     name: test
     strategy:
       matrix:
-        os: [ubuntu-20.04] # macos-latest disabled as one test randomly fails
+        os: [ubuntu-22.04] # macos-latest disabled as one test randomly fails
         python-version: ["3.10"]
       fail-fast: false
     steps:

.github/workflows/nightly_release.yml

@@ -7,7 +7,7 @@ on:
     - cron: "0 12 * * *"
 jobs:
   tests:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     name: test
     strategy:
       fail-fast: false

tensorcircuit/basecircuit.py

@@ -796,8 +796,10 @@ def readouterror_bs(
         """
         # if isinstance(readout_error, tuple):
         #     readout_error = list[readout_error]  # type: ignore
-
-        nqubit = len(readout_error)  # type: ignore
+        try:
+            nqubit = int(readout_error.shape[0])  # type: ignore
+        except AttributeError:
+            nqubit = len(readout_error)  # type: ignore
         readoutlist = []
         for i in range(nqubit):
             readoutlist.append(

tensorcircuit/results/readout_mitigation.py

@@ -723,7 +723,10 @@ def _matvec_solver(  # type: ignore
         cals = self._form_cals(qubits)
         M = M3MatVec(dict(counts), cals, distance)
         L = spla.LinearOperator(
-            (M.num_elems, M.num_elems), matvec=M.matvec, rmatvec=M.rmatvec
+            (M.num_elems, M.num_elems),
+            matvec=M.matvec,
+            rmatvec=M.rmatvec,
+            dtype=np.float64,
         )
         diags = M.get_diagonal()
 

tensorcircuit/translation.py

@@ -45,7 +45,6 @@
 
 
 def get_qiskit_qasm(qc: Any) -> str:
-
     try:
         qasm_str = qc.qasm()  # type: ignore
     except AttributeError:  # qiskit 1.0

tests/test_interfaces.py

@@ -431,7 +431,6 @@ def g(a, b, c):
 
 
 def test_jax_interface_basic(tfb):
-
     def f(params):
         c = tc.Circuit(1)
         c.rx(0, theta=params[0])
@@ -453,7 +452,6 @@ def f(params):
 
 
 def test_jax_interface_multiple_inputs(tfb):
-
     def f(params1, params2):
         c = tc.Circuit(2)
         c.rx(0, theta=params1[0])
@@ -481,7 +479,6 @@ def f(params1, params2):
     reason="might fail when testing with other function",
 )
 def test_jax_interface_jit_dlpack(tfb):
-
     def f(params):
         c = tc.Circuit(2)
         c.rx(range(2), theta=params)
@@ -502,7 +499,6 @@ def f(params):
 
 
 def test_jax_interface_pure_callback(tfb):
-
     def f(params):
         # Use TF operation to test pure_callback
         return tf.square(params)
@@ -531,7 +527,6 @@ def f_jax2(params):
 
 
 def test_jax_interface_multiple_outputs(tfb):
-
     def f(params):
         # Use TF operation to test pure_callback
         return tf.square(params), params

tests/test_results.py

@@ -16,7 +16,6 @@ def test_marginal_count():
 
 
 def test_merge_count():
-
     c1 = {"00": 10, "01": 20, "11": 30}
     c2 = {"00": 5, "10": 15, "11": 25}
     c3 = {"01": 10, "10": 20}