Wrap adding logging options in try / catch. (#7307)

Author: qihqi

experimental/torch_xla2/torch_xla2/__init__.py

@@ -10,19 +10,30 @@
   'extract_jax',
 ]
 
-
+from jax._src import xla_bridge
+os.environ.setdefault('ENABLE_RUNTIME_UPTIME_TELEMETRY', '1')
 jax.config.update('jax_enable_x64', True)
-jax.config.update(
-  'jax_pjrt_client_create_options',
-  f'ml_framework_name:PyTorch/XLA2;ml_framework_version:{"v0.0.1"}'
-)
+old_pjrt_options = jax.config.jax_pjrt_client_create_options
+
+try:
+  jax.config.update(
+    'jax_pjrt_client_create_options',
+    f'ml_framework_name:PyTorch/XLA2;ml_framework_version:{"v0.0.1"}'
+  )
+  xla_bridge._clear_backends()
+  jax.devices()  # open PJRT  to see if it opens
+except RuntimeError:
+  jax.config.update(
+    'jax_pjrt_client_create_options', old_pjrt_options
+  )
+  xla_bridge._clear_backends()
+  jax.devices()  # open PJRT  to see if it opens
+
 
 env = None
 def default_env():
   global env
 
-  os.environ.setdefault('ENABLE_RUNTIME_UPTIME_TELEMETRY', '1')
-
   if env is None:
     env = tensor.Environment()
   return env