don't test groupStart/End if ver<2.2
@@ -41,6 +41,8 @@ class TestNCCL(unittest.TestCase):
comms[i].destroy()
@attr.gpu
+ @unittest.skipUnless(cuda.nccl_enabled and
+ cuda.nccl.get_version() >= 2200, 'Using old NCCL')
def test_single_proc_single_dev(self):
comms = cuda.nccl.NcclCommunicator.initAll(1)
cuda.nccl.groupStart()
