MaxView

2026-04-16 02:15:41.037247: E external/local_xla/xla/stream_executor/cuda/cuda_platform.cc:51] failed call to cuInit: INTERNAL: CUDA error: Failed call to cuInit: UNKNOWN ERROR (303)
I0416 02:15:41.155157 131570337852544 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag.
I0416 02:16:12.750757 131570337852544 max_utils.py:800] System Information: Jax Version: 0.9.2
I0416 02:16:12.750874 131570337852544 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0416 02:16:12.750910 131570337852544 max_utils.py:802] System Information: Jax Backend: PJRT C API
TFRT TPU v6 lite
Built on Apr 6 2026 20:48:10 (1775533690) cl/895581894
I0416 02:16:12.750935 131570337852544 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system
I0416 02:16:12.751018 131570337852544 train.py:812] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper.
W0416 02:16:12.845090 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:16:13.260182 131570337852544 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0416 02:16:13.640749 131570337852544 checkpointing.py:688] Setting up checkpoint logger...
I0416 02:16:13.640873 131570337852544 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0416 02:16:13.640915 131570337852544 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None
I0416 02:16:13.641140 131570337852544 base_pytree_checkpoint_handler.py:411] Created BasePyTreeCheckpointHandler: use_ocdbt=True, use_zarr3=True, pytree_metadata_options=PyTreeMetadataOptions(support_rich_types=False), array_metadata_store=<orbax.checkpoint._src.metadata.array_metadata_store.Store object at 0x77a9045f8da0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0416 02:16:15.993955 131570337852544 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0416 02:16:15.994175 131570337852544 checkpoint_manager.py:702] [process=0][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x77a286f1ecf0>}, handler_registry=None
I0416 02:16:15.994451 131570337852544 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x77a286f1ecf0>` for item "items" and save args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>` to `_handler_registry`.
I0416 02:16:15.994491 131570337852544 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x77a286f1d100>` for item "metrics" and save args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>` to `_handler_registry`.
I0416 02:16:15.994519 131570337852544 composite_checkpoint_handler.py:505] Initialized registry DefaultCheckpointHandlerRegistry({('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeSaveArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x77a286f1ecf0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x77a286f1ecf0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x77a286f1d100>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x77a286f1d100>}).
I0416 02:16:15.994942 131570337852544 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28
I0416 02:16:15.994998 131570337852544 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x77a28738fd80> timeout: 600 secs and primary_host=0 for async checkpoint writes
I0416 02:16:16.131139 131570337852544 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/checkpoints
I0416 02:16:16.131397 131570337852544 checkpoint_manager.py:921] [process=0][thread=MainThread] CheckpointManager created,  primary_host=0, CheckpointManagerOptions=CheckpointManagerOptions(save_interval_steps=1, max_to_keep=None, keep_time_interval=None, keep_period=None, should_keep_fn=None, best_fn=None, best_mode='max', keep_checkpoints_without_metrics=True, step_prefix=None, step_format_fixed_length=None, step_name_format=None, create=True, cleanup_tmp_directories=False, save_on_steps=frozenset(), single_host_load_and_broadcast=False, todelete_subdir=None, todelete_full_path=None, enable_hns=False, enable_background_delete=False, read_only=False, enable_async_checkpointing=True, async_options=None, multiprocessing_options=MultiprocessingOptions(primary_host=0, active_processes=None, barrier_sync_key_prefix=None), should_save_fn=None, file_options=FileOptions(path_permission_mode=None), save_root_metadata=True, temporary_path_class=None, save_decision_policy=FixedIntervalPolicy(interval=10), preservation_policy=LatestN(n=None), prevent_write_metrics=False, enable_should_save_is_saving_in_progress_check=True, enable_per_process_directory_creation=False), root_directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x77a286f1c860>
I0416 02:16:16.131483 131570337852544 checkpointing.py:302] Checkpoint manager created!
I0416 02:16:16.213787 131570337852544 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0
I0416 02:16:16.216889 131570337852544 reader.py:262] Creating a tf.data.Dataset reading 8 files located in folders: tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0.
I0416 02:16:16.273795 131570337852544 logging_logger.py:49] Constructing tf.data.Dataset __local_c4_builder for split train, from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0
I0416 02:16:16.305019 131570337852544 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2
I0416 02:16:16.305100 131570337852544 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2
I0416 02:16:17.592006 131570337852544 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0416 02:16:17.592139 131570337852544 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
[DECOUPLED NO-OP] gcs_storage: using stubs.
[DECOUPLED NO-OP] mldiagnostics: using stub.
[DECOUPLED NO-OP] mldiagnostics: using stub.
[DECOUPLED NO-OP] mldiagnostics: using stub.
[DECOUPLED NO-OP] workload_monitor: using stub.
[DECOUPLED NO-OP] vertex_tensorboard: using stub.
fsdp: 8

I0416 02:16:20.446070 131570337852544 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0416 02:16:20.446161 131570337852544 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:16:20.451080 131570337852544 nnx_decoders.py:465] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0416 02:16:20.451129 131570337852544 nnx_decoders.py:465] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:16:20.466456 131570337852544 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 02:16:20.466508 131570337852544 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:16:20.481215 131570337852544 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 02:16:20.481266 131570337852544 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:16:20.535964 131570337852544 attentions.py:1154] attentions/query Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0416 02:16:20.536065 131570337852544 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:16:20.550821 131570337852544 attentions.py:1155] attentions/key Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0416 02:16:20.550873 131570337852544 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:16:20.565565 131570337852544 attentions.py:1156] attentions/value Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0416 02:16:20.565618 131570337852544 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:16:20.593860 131570337852544 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0416 02:16:20.593926 131570337852544 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:16:20.648589 131570337852544 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0416 02:16:20.648669 131570337852544 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None).
I0416 02:16:32.927864 131570337852544 max_utils.py:791] Total memory size: 3.5 GB, Output size: 1.5 GB, Temp size: 1.9 GB, Argument size: 1.5 GB, Host temp size: 0.0 GB.
I0416 02:16:32.928617 131570337852544 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter.
I0416 02:16:32.931910 131570337852544 metric_logger.py:289] number parameters: 1.104 billion
I0416 02:16:48.223092 131570337852544 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0416 02:16:48.350564 131570337852544 checkpointing.py:798] Waited 0.12747550010681152 seconds for step 0 to finish before starting checkpointing.
I0416 02:16:48.351191 131570337852544 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0416 02:16:48.351373 131570337852544 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0
I0416 02:16:48.351854 131570337852544 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/checkpoints/0.
I0416 02:16:48.444427 131570337852544 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient
I0416 02:16:48.571542 131455317444160 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/checkpoints/0
I0416 02:16:48.572287 131570337852544 jax_array_handlers.py:347] Scheduling D2H of 153 prioritized jax.Array.
I0416 02:16:48.572471 131570337852544 replica_slices.py:410] Transferring arrays to host memory with options: use_replica_parallel=True, min_slice_bytes_for_replica_parallel=None, max_replicas_for_replica_parallel=None, enable_pinned_host_transfer=False
I0416 02:16:49.281360 131455306958400 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/checkpoints/0/items
I0416 02:16:49.445674 131455267112512 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776305809191065336, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776305809191065336, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/checkpoints/0/_CHECKPOINT_METADATA
I0416 02:16:49.801728 3539847 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json
I0416 02:16:49.801786 3539847 google_auth_provider.cc:156] Using OAuth2 AuthProvider
W0416 02:16:50.370537 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:16:50.379636 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:16:50.386476 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:16:50.391989 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:16:50.397146 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:16:50.402402 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:16:50.407508 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:16:50.412489 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:16:51.179486 131570337852544 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 2.609547s
I0416 02:16:51.191591 131570337852544 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 4.496 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 2 seconds) (per-host)
I0416 02:16:51.191661 131570337852544 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 2.745312s (batch_requests_ready=0.105806s, total_serialization_initiated=2.627519s, others=0.011988s)
I0416 02:16:51.191765 131570337852544 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 2.746734s (all_items=0.000028s, per_item={'items': '0.00002766'}, temp_paths=2.746707)
I0416 02:16:51.193466 131455193712192 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started.
I0416 02:16:51.193572 131570337852544 async_checkpointer.py:561] Finished blocking save. Time taken: 2.842155s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/checkpoints/0.
I0416 02:16:51.193774 131570337852544 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0416 02:16:51.193979 131455327929920 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save.
I0416 02:16:51.194122 131570337852544 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776305808.351177, 'wait_for_prev_duration_secs': 4.744529724121094e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776305808.351394, 'checkpointer_blocking_duration_secs': 2.8422906398773193, 'get_old_steps_start_time': 1776305811.1937032, 'get_old_steps_duration_secs': 3.552436828613281e-05, 'checkpoint_manager_blocking_start_time': 1776305808.351076, 'checkpoint_manager_blocking_duration_secs': 2.8430187702178955}
I0416 02:16:51.194227 131570337852544 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0416 02:16:51.194287 131570337852544 max_utils.py:750] 
Memstats: After params initialized:
I0416 02:16:51.194335 131570337852544 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_0(process=0,(0,0,0,0))
I0416 02:16:51.194360 131570337852544 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_1(process=0,(1,0,0,0))
I0416 02:16:51.194380 131570337852544 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_2(process=0,(0,1,0,0))
I0416 02:16:51.194400 131570337852544 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_3(process=0,(1,1,0,0))
I0416 02:16:51.194418 131570337852544 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_4(process=0,(0,2,0,0))
I0416 02:16:51.194436 131570337852544 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_5(process=0,(1,2,0,0))
I0416 02:16:51.194453 131570337852544 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_6(process=0,(0,3,0,0))
I0416 02:16:51.194472 131570337852544 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_7(process=0,(1,3,0,0))
W0416 02:16:51.201020 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:16:51.207181 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 02:16:51.212430 3536616 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:16:51.581812 131570337852544 metric_logger.py:185] completed step: 0, seconds: 15.289, TFLOP/s/device: 0.889, Tokens/s/device: 133.954, total_weights: 13328, loss: 10.885
I0416 02:16:51.582848 131570337852544 metric_logger.py:269] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/tensorboard/'
I0416 02:16:51.680373 131570337852544 metric_logger.py:185] completed step: 1, seconds: 3.351, TFLOP/s/device: 4.055, Tokens/s/device: 611.243, total_weights: 12332, loss: nan
I0416 02:16:51.681428 131570337852544 metric_logger.py:225] Aborting training due to NaN loss.
I0416 02:16:51.681543 131570337852544 metric_logger.py:185] completed step: 1, seconds: 3.351, TFLOP/s/device: 4.055, Tokens/s/device: 611.243, total_weights: 12332, loss: nan
I0416 02:16:51.681641 131570337852544 metric_logger.py:225] Aborting training due to NaN loss.
E0416 02:16:51.718673 131455285986880 future.py:315] [process=0][thread=array_type_handler][operation_id=1] _SignalingThread.run() raised an exception: cannot schedule new futures after shutdown
Traceback (most recent call last):
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run
    super().run()
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run
    self._target(*self._args, **self._kwargs)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result
    self._result = target()
                   ^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda>
    target=lambda: asyncio_utils.run_sync(coro),
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync
    return asyncio.run(coro)
           ^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 363, in _serialize_without_dispatcher
    await async_serialize_replica_slices_batch(
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 608, in _async_serialize_replica_slices
    await asyncio.gather(*write_coros)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/metadata/array_metadata_store.py", line 200, in write
    await async_path.write_text(
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/path/async_path.py", line 59, in write_text
    return await asyncio.to_thread(path.write_text, text)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread
    return await loop.run_in_executor(None, func_call)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 867, in run_in_executor
    executor.submit(func, *args), loop=self)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 171, in submit
    raise RuntimeError('cannot schedule new futures after shutdown')
RuntimeError: cannot schedule new futures after shutdown
E0416 02:16:51.722066 131455214683712 future.py:315] [process=0][thread=write_metadata_after_commits][operation_id=1] _SignalingThread.run() raised an exception: cannot schedule new futures after shutdown
Traceback (most recent call last):
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run
    super().run()
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run
    self._target(*self._args, **self._kwargs)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result
    self._result = target()
                   ^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda>
    target=lambda: asyncio_utils.run_sync(coro),
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync
    return asyncio.run(coro)
           ^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/handlers/base_pytree_checkpoint_handler.py", line 1192, in _write_metadata_after_commits
    await asyncio.to_thread(commit_future.result)
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread
    return await loop.run_in_executor(None, func_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 59, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 449, in result
    return self._f.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 398, in result
    return self._t.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 347, in result
    self.join(timeout=timeout)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 344, in join
    raise self._exception
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run
    super().run()
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run
    self._target(*self._args, **self._kwargs)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result
    self._result = target()
                   ^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda>
    target=lambda: asyncio_utils.run_sync(coro),
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync
    return asyncio.run(coro)
           ^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 363, in _serialize_without_dispatcher
    await async_serialize_replica_slices_batch(
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 608, in _async_serialize_replica_slices
    await asyncio.gather(*write_coros)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/metadata/array_metadata_store.py", line 200, in write
    await async_path.write_text(
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/path/async_path.py", line 59, in write_text
    return await asyncio.to_thread(path.write_text, text)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread
    return await loop.run_in_executor(None, func_call)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 867, in run_in_executor
    executor.submit(func, *args), loop=self)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 171, in submit
    raise RuntimeError('cannot schedule new futures after shutdown')
RuntimeError: cannot schedule new futures after shutdown
E0416 02:16:51.724119 131455193712192 async_checkpointer.py:229] [process=0] Failed to run 3 Handler Commit operations or the Commit callback in background save thread, directory: gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_05_fp8/checkpoints/0
Traceback (most recent call last):
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/checkpointers/async_checkpointer.py", line 215, in _thread_func
    _background_wait_for_commit_futures(
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/checkpointers/async_checkpointer.py", line 88, in _background_wait_for_commit_futures
    commit_future.result()
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 196, in result
    f.result(timeout=time_remaining)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 449, in result
    return self._f.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 398, in result
    return self._t.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 347, in result
    self.join(timeout=timeout)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 344, in join
    raise self._exception
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run
    super().run()
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run
    self._target(*self._args, **self._kwargs)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result
    self._result = target()
                   ^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda>
    target=lambda: asyncio_utils.run_sync(coro),
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync
    return asyncio.run(coro)
           ^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/handlers/base_pytree_checkpoint_handler.py", line 1192, in _write_metadata_after_commits
    await asyncio.to_thread(commit_future.result)
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread
    return await loop.run_in_executor(None, func_call)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 59, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 449, in result
    return self._f.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 398, in result
    return self._t.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 347, in result
    self.join(timeout=timeout)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 344, in join
    raise self._exception
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 312, in run
    super().run()
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/threading.py", line 1012, in run
    self._target(*self._args, **self._kwargs)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 257, in _target_setting_result
    self._result = target()
                   ^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/futures/future.py", line 391, in <lambda>
    target=lambda: asyncio_utils.run_sync(coro),
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/asyncio_utils.py", line 36, in run_sync
    return asyncio.run(coro)
           ^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 363, in _serialize_without_dispatcher
    await async_serialize_replica_slices_batch(
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/serialization/jax_array_handlers.py", line 608, in _async_serialize_replica_slices
    await asyncio.gather(*write_coros)
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/metadata/array_metadata_store.py", line 200, in write
    await async_path.write_text(
  File "~/maxtext_venv/lib/python3.12/site-packages/orbax/checkpoint/_src/path/async_path.py", line 59, in write_text
    return await asyncio.to_thread(path.write_text, text)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/threads.py", line 25, in to_thread
    return await loop.run_in_executor(None, func_call)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/asyncio/base_events.py", line 867, in run_in_executor
    executor.submit(func, *args), loop=self)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "~/.local/share/uv/python/cpython-3.12.12-linux-x86_64-gnu/lib/python3.12/concurrent/futures/thread.py", line 171, in submit
    raise RuntimeError('cannot schedule new futures after shutdown')
RuntimeError: cannot schedule new futures after shutdown
I0416 02:16:51.726250 131455327929920 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save.
I0416 02:16:51.726411 131455327929920 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0416 02:16:51.726509 131455327929920 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops