MaxView

2026-04-16 05:11:21.814157: 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 05:11:21.932456 133463365880960 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag.
I0416 05:12:18.227428 133463365880960 max_utils.py:800] System Information: Jax Version: 0.9.2
I0416 05:12:18.227533 133463365880960 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0416 05:12:18.227567 133463365880960 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 05:12:18.227597 133463365880960 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system
I0416 05:12:18.227619 133463365880960 train_utils.py:377] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0416 05:12:18.227695 133463365880960 train.py:818] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper.
W0416 05:12:18.321006 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 05:12:18.716381 133463365880960 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0416 05:12:18.815020 133463365880960 checkpointing.py:688] Setting up checkpoint logger...
I0416 05:12:18.815132 133463365880960 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0416 05:12:18.815174 133463365880960 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None
I0416 05:12:18.815358 133463365880960 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 0x7961c63fcc50>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0416 05:12:21.185193 133463365880960 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0416 05:12:21.185365 133463365880960 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 0x795b48b1bef0>}, handler_registry=None
I0416 05:12:21.185617 133463365880960 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x795b48b1bef0>` 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 05:12:21.185657 133463365880960 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x795b48b83b90>` 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 05:12:21.185684 133463365880960 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 0x795b48b1bef0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x795b48b1bef0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x795b48b83b90>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x795b48b83b90>}).
I0416 05:12:21.185990 133463365880960 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28
I0416 05:12:21.186040 133463365880960 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x795b49b8d940> timeout: 600 secs and primary_host=0 for async checkpoint writes
I0416 05:12:21.309086 133463365880960 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints
I0416 05:12:21.309306 133463365880960 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_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x795b48b83350>
I0416 05:12:21.309379 133463365880960 checkpointing.py:302] Checkpoint manager created!
I0416 05:12:22.193142 133463365880960 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0416 05:12:22.193243 133463365880960 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
W0416 05:12:22.304580 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
[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 05:12:22.483451 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Logical: float32[2048]............................................... Unknown.
I0416 05:12:22.483530 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Physical: float32[2048]............................................... (None,).
I0416 05:12:22.496439 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Logical: float32[2048,16,7168]....................................... Unknown.
I0416 05:12:22.496487 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Physical: float32[2048,16,7168]....................................... ('fsdp', None, None).
I0416 05:12:22.522136 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Logical: float32[7168,16,2048]....................................... Unknown.
I0416 05:12:22.522189 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Physical: float32[7168,16,2048]....................................... (None, None, 'fsdp').
I0416 05:12:22.534985 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Logical: float32[2048,16]............................................ Unknown.
I0416 05:12:22.535032 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Physical: float32[2048,16]............................................ (None, None).
I0416 05:12:22.560558 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Logical: float32[2048,16,16,128]..................................... Unknown.
I0416 05:12:22.560610 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Physical: float32[2048,16,16,128]..................................... ('fsdp', None, None, None).
I0416 05:12:22.573465 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Logical: float32[16,16,128,2048]..................................... Unknown.
I0416 05:12:22.573513 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Physical: float32[16,16,128,2048]..................................... (None, None, None, 'fsdp').
I0416 05:12:22.624480 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Logical: float32[2048,32000]......................................... Unknown.
I0416 05:12:22.624623 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Physical: float32[2048,32000]......................................... ('fsdp', None).
I0416 05:12:22.637452 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Logical: float32[32000,2048]......................................... Unknown.
I0416 05:12:22.637497 133463365880960 gradient_accumulation.py:70] gradient_accumulation/inputs Physical: float32[32000,2048]......................................... (None, 'fsdp').
I0416 05:12:22.830204 133463365880960 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0416 05:12:22.830326 133463365880960 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 05:12:22.837847 133463365880960 nnx_decoders.py:465] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0416 05:12:22.837934 133463365880960 nnx_decoders.py:465] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 05:12:22.852636 133463365880960 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 05:12:22.852753 133463365880960 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 05:12:22.866492 133463365880960 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 05:12:22.866605 133463365880960 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 05:12:22.894246 133463365880960 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 05:12:22.894374 133463365880960 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 05:12:22.908235 133463365880960 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 05:12:22.908344 133463365880960 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 05:12:22.922132 133463365880960 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 05:12:22.922245 133463365880960 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 05:12:22.947174 133463365880960 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0416 05:12:22.947297 133463365880960 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 05:12:22.966217 133463365880960 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0416 05:12:22.966307 133463365880960 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None).
I0416 05:12:31.778093 133463365880960 max_utils.py:791] Total memory size: 4.5 GB, Output size: 1.5 GB, Temp size: 2.9 GB, Argument size: 1.5 GB, Host temp size: 0.0 GB.
I0416 05:12:31.778723 133463365880960 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter.
I0416 05:12:31.780375 133463365880960 metric_logger.py:289] number parameters: 1.104 billion
W0416 05:12:32.993425 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 05:12:33.126012 133463365880960 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0416 05:12:33.552845 133463365880960 checkpointing.py:798] Waited 0.4268157482147217 seconds for step 0 to finish before starting checkpointing.
I0416 05:12:33.553302 133463365880960 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0416 05:12:33.553449 133463365880960 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0
I0416 05:12:33.553803 133463365880960 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0.
I0416 05:12:33.643742 133463365880960 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient
I0416 05:12:33.743679 133355683186240 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0
I0416 05:12:33.744165 133463365880960 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array.
I0416 05:12:33.744385 133463365880960 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 05:12:34.453667 133355672700480 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0/items
W0416 05:12:34.496500 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 05:12:34.513328 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 05:12:34.537268 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 05:12:34.548096 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 05:12:34.555241 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 05:12:34.559985 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 05:12:34.564753 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 05:12:34.569444 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 05:12:34.611856 133355637048896 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776316354365793470, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776316354365793470, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0/_CHECKPOINT_METADATA
I0416 05:12:34.755226 133463365880960 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.012608s
I0416 05:12:34.755634 133463365880960 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 11.115 GiB/s (total gbytes: 12.3 GiB) (time elapsed: a second) (per-host)
I0416 05:12:34.755683 133463365880960 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 1.110363s (batch_requests_ready=0.089205s, total_serialization_initiated=1.020849s, others=0.000310s)
I0416 05:12:34.755751 133463365880960 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 1.111559s (all_items=0.000019s, per_item={'items': '0.00001860'}, temp_paths=1.111540)
I0416 05:12:34.756535 133355616077376 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started.
I0416 05:12:34.756634 133463365880960 async_checkpointer.py:561] Finished blocking save. Time taken: 1.203146s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0.
I0416 05:12:34.756840 133463365880960 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0416 05:12:34.757069 133355605591616 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save.
I0416 05:12:34.757174 133463365880960 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776316353.5532897, 'wait_for_prev_duration_secs': 3.981590270996094e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776316353.55347, 'checkpointer_blocking_duration_secs': 1.203277349472046, 'get_old_steps_start_time': 1776316354.7567751, 'get_old_steps_duration_secs': 2.765655517578125e-05, 'checkpoint_manager_blocking_start_time': 1776316353.553206, 'checkpoint_manager_blocking_duration_secs': 1.2039411067962646}
I0416 05:12:34.757307 133463365880960 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0416 05:12:34.757361 133463365880960 max_utils.py:750] 
Memstats: After params initialized:
I0416 05:12:34.757525 133463365880960 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_0(process=0,(0,0,0,0))
I0416 05:12:34.757554 133463365880960 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_1(process=0,(1,0,0,0))
I0416 05:12:34.757575 133463365880960 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_2(process=0,(0,1,0,0))
I0416 05:12:34.757616 133463365880960 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_3(process=0,(1,1,0,0))
I0416 05:12:34.757634 133463365880960 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_4(process=0,(0,2,0,0))
I0416 05:12:34.757657 133463365880960 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_5(process=0,(1,2,0,0))
I0416 05:12:34.757674 133463365880960 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_6(process=0,(0,3,0,0))
I0416 05:12:34.757690 133463365880960 max_utils.py:756] 	Using (GB) 1.6 / 31.25 (5.120000%) on TPU_7(process=0,(1,3,0,0))
W0416 05:12:34.763843 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 05:12:34.769729 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
W0416 05:12:34.775998 3725856 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 05:12:35.128301 3728306 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json
I0416 05:12:35.128367 3728306 google_auth_provider.cc:156] Using OAuth2 AuthProvider
I0416 05:12:35.174563 133463365880960 metric_logger.py:185] completed step: 0, seconds: 1.344, TFLOP/s/device: 40.436, Tokens/s/device: 6094.971, total_weights: 65536, loss: 10.880
I0416 05:12:35.177445 133463365880960 metric_logger.py:269] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/tensorboard/'
I0416 05:12:35.560760 133463365880960 metric_logger.py:185] completed step: 1, seconds: 2.013, TFLOP/s/device: 26.997, Tokens/s/device: 4069.291, total_weights: 65536, loss: 10.880
I0416 05:12:35.887212 133355683186240 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0/items/array_metadatas/process_0
I0416 05:12:35.981089 133463365880960 metric_logger.py:185] completed step: 2, seconds: 0.053, TFLOP/s/device: 1018.793, Tokens/s/device: 153563.529, total_weights: 65536, loss: 10.270
I0416 05:12:36.405150 133463365880960 metric_logger.py:185] completed step: 3, seconds: 0.376, TFLOP/s/device: 144.413, Tokens/s/device: 21767.551, total_weights: 65536, loss: 9.741
I0416 05:13:06.708028 133355626563136 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 31.576464s (commit=31.108762s, array_metadata_write=0.467702s)
I0416 05:13:06.709203 133355616077376 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 382.194 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 33 seconds) (per-host)
I0416 05:13:06.709321 133355616077376 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 31.952637s.
I0416 05:13:06.951801 133355616077376 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776316354365793470, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} from gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0/_CHECKPOINT_METADATA
I0416 05:13:07.153864 133355616077376 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0.
I0416 05:13:07.340475 133355637048896 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776316354365793470, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0/_CHECKPOINT_METADATA
I0416 05:13:07.591675 133355616077376 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389).
I0416 05:13:07.591846 133355616077376 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.586326s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0/items
I0416 05:13:07.593036 133355616077376 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0/items
I0416 05:13:07.833142 133355616077376 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0
I0416 05:13:08.527940 133355616077376 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0`.
I0416 05:13:08.528611 133355616077376 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 34.975127s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/0
I0416 05:13:08.528697 133355616077376 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 33.772017s.
I0416 05:13:08.528885 133355605591616 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save.
I0416 05:13:08.528998 133355605591616 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save.
I0416 05:13:08.529102 133355605591616 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0416 05:13:08.529160 133355605591616 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0416 05:13:11.915236 133463365880960 metric_logger.py:185] completed step: 4, seconds: 0.420, TFLOP/s/device: 129.277, Tokens/s/device: 19486.018, total_weights: 65536, loss: 9.284
I0416 05:13:11.924254 133463365880960 metric_logger.py:185] completed step: 5, seconds: 0.428, TFLOP/s/device: 127.004, Tokens/s/device: 19143.363, total_weights: 65536, loss: 8.897
I0416 05:13:12.344246 133463365880960 metric_logger.py:185] completed step: 6, seconds: 35.505, TFLOP/s/device: 1.531, Tokens/s/device: 230.726, total_weights: 65536, loss: 8.598
I0416 05:13:12.767057 133463365880960 metric_logger.py:185] completed step: 7, seconds: 0.007, TFLOP/s/device: 7904.089, Tokens/s/device: 1191390.343, total_weights: 65536, loss: 8.390
I0416 05:13:13.191055 133463365880960 metric_logger.py:185] completed step: 8, seconds: 0.421, TFLOP/s/device: 129.003, Tokens/s/device: 19444.669, total_weights: 65536, loss: 8.261
I0416 05:13:13.625709 133463365880960 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0416 05:13:13.626961 133463365880960 checkpointing.py:798] Waited 0.0012631416320800781 seconds for step 9 to finish before starting checkpointing.
I0416 05:13:13.627242 133463365880960 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0416 05:13:13.627408 133463365880960 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9
I0416 05:13:13.627692 133463365880960 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9.
I0416 05:13:13.823495 133355605591616 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9
I0416 05:13:13.838613 133463365880960 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array.
I0416 05:13:13.838717 133463365880960 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 05:13:14.541239 133355626563136 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9/items
I0416 05:13:18.578736 133463365880960 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 4.741181s
I0416 05:13:18.585508 133463365880960 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 2.537 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 4 seconds) (per-host)
I0416 05:13:18.585570 133463365880960 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 4.864570s (batch_requests_ready=0.109445s, total_serialization_initiated=4.748466s, others=0.006658s)
I0416 05:13:18.585653 133463365880960 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 4.866481s (all_items=0.000026s, per_item={'items': '0.00002551'}, temp_paths=4.866456)
I0416 05:13:18.587179 133355605591616 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started.
I0416 05:13:18.587275 133463365880960 async_checkpointer.py:561] Finished blocking save. Time taken: 4.959827s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9.
I0416 05:13:18.587477 133463365880960 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0416 05:13:18.587688 133355616077376 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save.
I0416 05:13:18.587799 133463365880960 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776316393.6272013, 'wait_for_prev_duration_secs': 6.723403930664062e-05, 'time_between_consecutive_saves_sec': 5.098025321960449, 'checkpointer_blocking_start_time': 1776316393.6274285, 'checkpointer_blocking_duration_secs': 4.959954261779785, 'get_old_steps_start_time': 1776316398.5873997, 'get_old_steps_duration_secs': 3.8623809814453125e-05, 'checkpoint_manager_blocking_start_time': 1776316393.6271646, 'checkpoint_manager_blocking_duration_secs': 4.960608720779419}
I0416 05:13:18.587927 133463365880960 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0416 05:13:18.587964 133463365880960 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0416 05:13:19.330447 133355683186240 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9/items/array_metadatas/process_0
I0416 05:13:50.741540 133355626563136 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 32.155114s (commit=31.717174s, array_metadata_write=0.437940s)
I0416 05:13:50.742826 133355605591616 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 341.334 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 37 seconds) (per-host)
I0416 05:13:50.742935 133355605591616 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 32.155618s.
I0416 05:13:51.161080 133355605591616 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0.
I0416 05:13:51.640742 133355605591616 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389).
I0416 05:13:51.641456 133355605591616 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.628214s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9/items
I0416 05:13:51.642096 133355605591616 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9/items
I0416 05:13:51.891752 133355605591616 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9
I0416 05:13:52.570701 133355605591616 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9`.
I0416 05:13:52.571337 133355605591616 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 38.943897s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_06_grad_accum/checkpoints/9
I0416 05:13:52.571418 133355605591616 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 33.984102s.
I0416 05:13:52.571617 133355616077376 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save.
I0416 05:13:52.571727 133355616077376 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save.
I0416 05:13:52.571800 133355616077376 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0416 05:13:52.571845 133355616077376 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0416 05:13:52.571979 133463365880960 checkpoint_manager.py:2006] [process=0][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9.
I0416 05:13:52.572188 133463365880960 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0416 05:13:52.573112 133463365880960 metric_logger.py:185] completed step: 9, seconds: 0.422, TFLOP/s/device: 128.728, Tokens/s/device: 19403.310, total_weights: 65536, loss: 8.185
Per train step:
 Total TFLOPs: 54.35 
 split as 93.93% learnable weight flops and 6.07% attention flops