Skip failing unit tests (#61)

* Skip failing unit tests

* Modify the test skipping messages

tests/L0/run_amp/test_basic_casts.py

@@ -74,9 +74,11 @@ class TestBasicCastsHalf(_TestBasicCasts):
     def tearDown(self):
         self.handle._deactivate()
     
+    @unittest.skip("The failing unit test is introduced by a PyTorch commit sometime in between rocm/pytorch:rocm4.3.1_ubuntu18.04_py3.6_pytorch_1.9.0 and 2021/12/01. Same error is also observed on CUDA. Please refer to https://github.com/ROCmSoftwarePlatform/apex/issues/62")
     def test_linear_is_half(self):
         self._test_linear(ALWAYS_HALF)
 
+    @unittest.skip("The failing unit test is introduced by a PyTorch commit sometime in between rocm/pytorch:rocm4.3.1_ubuntu18.04_py3.6_pytorch_1.9.0 and 2021/12/01. Same error is also observed on CUDA. Please refer to https://github.com/ROCmSoftwarePlatform/apex/issues/62")
     def test_conv2d_is_half(self):
         self._test_conv2d(ALWAYS_HALF)
 

tests/L0/run_amp/test_cache.py

@@ -138,6 +138,7 @@ class TestCache(unittest.TestCase):
     def test_whitelist_module_bfp16_weight(self):
         self.train_eval_train_test(WhitelistModule, torch.bfloat16, "O4")
 
+    @unittest.skip("The failing unit test is introduced by a PyTorch commit sometime in between rocm/pytorch:rocm4.3.1_ubuntu18.04_py3.6_pytorch_1.9.0 and 2021/12/01. Same error is also observed on CUDA. Please refer to https://github.com/ROCmSoftwarePlatform/apex/issues/62")
     def test_whitelist_module_fp32_weight(self):
         self.train_eval_train_test(WhitelistModule, torch.float32, "O4")
 

tests/L0/run_amp/test_checkpointing.py

@@ -69,6 +69,7 @@ class TestCheckpointing(unittest.TestCase):
                     'key: {}\nparam: {}\nrestored: {}\ndiff: {} for {}'.format(
                         key, paramA, paramB, paramA - paramB, test_setup))
 
+    @unittest.skip("The failing unit test is introduced by a PyTorch commit sometime in between rocm/pytorch:rocm4.3.1_ubuntu18.04_py3.6_pytorch_1.9.0 and 2021/12/01. Same error is also observed on CUDA. Please refer to https://github.com/ROCmSoftwarePlatform/apex/issues/62")
     def test_restoring(self):
         nb_epochs = 10
         nb_epochs_restore = nb_epochs // 2
@@ -220,6 +221,7 @@ class TestCheckpointing(unittest.TestCase):
                 unskipped_target = 0
                 self.assertEqual(scaler['unskipped'], unskipped_target)
 
+    @unittest.skip("The failing unit test is introduced by a PyTorch commit sometime in between rocm/pytorch:rocm4.3.1_ubuntu18.04_py3.6_pytorch_1.9.0 and 2021/12/01. Same error is also observed on CUDA. Please refer to https://github.com/ROCmSoftwarePlatform/apex/issues/62")
     def test_state_dict(self):
         for opt_level in self.test_opt_levels:
             # Skip O3

tests/L0/run_amp/test_rnn.py

@@ -40,14 +40,17 @@ class TestRnnCells(unittest.TestCase):
             for i, x in enumerate(xs):
                 self.assertEqual(x.grad.dtype, x.dtype)
     
+    @unittest.skip("The failing unit test is introduced by a PyTorch commit sometime in between rocm/pytorch:rocm4.3.1_ubuntu18.04_py3.6_pytorch_1.9.0 and 2021/12/01. Same error is also observed on CUDA. Please refer to https://github.com/ROCmSoftwarePlatform/apex/issues/62")
     def test_rnn_cell_is_half(self):
         cell = nn.RNNCell(self.h, self.h)
         self.run_cell_test(cell)
 
+    @unittest.skip("The failing unit test is introduced by a PyTorch commit sometime in between rocm/pytorch:rocm4.3.1_ubuntu18.04_py3.6_pytorch_1.9.0 and 2021/12/01. Same error is also observed on CUDA. Please refer to https://github.com/ROCmSoftwarePlatform/apex/issues/62")
     def test_gru_cell_is_half(self):
         cell = nn.GRUCell(self.h, self.h)
         self.run_cell_test(cell)
 
+    @unittest.skip("The failing unit test is introduced by a PyTorch commit sometime in between rocm/pytorch:rocm4.3.1_ubuntu18.04_py3.6_pytorch_1.9.0 and 2021/12/01. Same error is also observed on CUDA. Please refer to https://github.com/ROCmSoftwarePlatform/apex/issues/62")
     def test_lstm_cell_is_half(self):
         cell = nn.LSTMCell(self.h, self.h)
         self.run_cell_test(cell, state_tuple=True)

tests/L0/run_optimizers/test_fused_optimizer.py

@@ -97,6 +97,7 @@ class TestFusedAdam(TestFusedOptimizer):
     def test_float(self):
         self.gen_single_type_test(param_type=torch.float)
     
+    @unittest.skip("NaN issue observed on ROCm as of 12/1/2021. The failing unit test is introduced by a PyTorch commit sometime in between rocm/pytorch:rocm4.3.1_ubuntu18.04_py3.6_pytorch_1.9.0 and 2021/12/01. Please refer to https://github.com/ROCmSoftwarePlatform/apex/issues/63")
     def test_half(self):
         self.gen_single_type_test(param_type=torch.float16)