Disable c10d test_sync_params_with_buffers on ROCm (#28190)
Summary:
Failed runs on master:
https://ci.pytorch.org/jenkins/job/pytorch-builds/job/py3.6-clang7-rocmdeb-ubuntu16.04-test2/2097/
https://ci.pytorch.org/jenkins/job/pytorch-builds/job/py3.6-clang7-rocmdeb-ubuntu16.04-test2/2144/
https://ci.pytorch.org/jenkins/job/pytorch-builds/job/py3.6-clang7-rocmdeb-ubuntu16.04-test2/2154/
https://ci.pytorch.org/jenkins/job/pytorch-builds/job/py3.6-clang7-rocmdeb-ubuntu16.04-test2/2167/
```
19:59:03 ======================================================================
19:59:03 FAIL: test_sync_params_with_buffers (__main__.DistributedDataParallelTest)
19:59:03 ----------------------------------------------------------------------
19:59:03 Traceback (most recent call last):
19:59:03 File "/var/lib/jenkins/workspace/test/common_distributed.py", line 130, in wrapper
19:59:03 self._join_processes(fn)
19:59:03 File "/var/lib/jenkins/workspace/test/common_distributed.py", line 211, in _join_processes
19:59:03 self._check_return_codes(elapsed_time)
19:59:03 File "/var/lib/jenkins/workspace/test/common_distributed.py", line 235, in _check_return_codes
19:59:03 self.assertEqual(first_process.exitcode, 0)
19:59:03 File "/var/lib/jenkins/workspace/test/common_utils.py", line 748, in assertEqual
19:59:03 super(TestCase, self).assertLessEqual(abs(x - y), prec, message)
19:59:03 AssertionError: 10 not less than or equal to 1e-05 :
19:59:03
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/28190
Differential Revision: D17971146
Pulled By: bddppq
fbshipit-source-id: d3f527c14ca81073c1c236d5b3bb07a6ef1dde51
