MaxView

XPK Start: Fri Apr 17 06:14:18 UTC 2026
PyTorch was not found. Models won't be available and only tokenizers, configuration and file/data utilities can be used.
2026-04-17 06:14:42.329680: 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)
I0417 06:14:42.509874 132482001123136 max_utils.py:273] Attempting to initialize the jax distributed system...
I0417 06:14:51.551651 132482001123136 distributed.py:149] Starting JAX distributed service on [::]:8482
I0417 06:14:51.554128 132482001123136 distributed.py:172] Connecting to JAX distributed service on mt-15-ocdbt-false-rs-wxphp-slice-job-0-0.mt-15-ocdbt-false-rs-wxphp:8482
I0417 06:14:52.641583 132482001123136 max_utils.py:284] Jax distributed system initialized!
I0417 06:14:58.875167 132482001123136 max_utils.py:800] System Information: Jax Version: 0.9.2
I0417 06:14:58.875269 132482001123136 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0417 06:14:58.875308 132482001123136 max_utils.py:802] System Information: Jax Backend: PJRT C API
TFRT TPU v6 lite
Built on Mar 4 2026 11:32:08 (1772652728) cl/878335365
I0417 06:14:58.875344 132482001123136 train_utils.py:377] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0417 06:14:59.557716 132482001123136 maxtext_utils.py:1687] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0417 06:14:59.671619 132482001123136 checkpointing.py:688] Setting up checkpoint logger...
I0417 06:14:59.671739 132482001123136 checkpointing.py:234] Creating checkpoint manager with ocdbt=False and zarr3=True
I0417 06:14:59.671784 132482001123136 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0417 06:14:59.671997 132482001123136 base_pytree_checkpoint_handler.py:441] Created BasePyTreeCheckpointHandler: use_ocdbt=False, use_zarr3=True, pytree_metadata_options=PyTreeMetadataOptions(support_rich_types=False), array_metadata_store=<orbax.checkpoint._src.metadata.array_metadata_store.Store object at 0x787d271384a0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0417 06:15:00.953402 132482001123136 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0417 06:15:00.953698 132482001123136 checkpoint_manager.py:708] [process=6][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x78680c75c170>}, handler_registry=None
I0417 06:15:00.953955 132482001123136 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x78680c75c170>` 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`.
I0417 06:15:00.954005 132482001123136 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78680c2925d0>` 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`.
I0417 06:15:00.954040 132482001123136 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 0x78680c75c170>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x78680c75c170>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78680c2925d0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78680c2925d0>}).
I0417 06:15:00.954355 132482001123136 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0417 06:15:00.954426 132482001123136 async_checkpointer.py:192] [process=6][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x78680c6ea020> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0417 06:15:03.733779 132359944922880 checkpoint.py:228] Read Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776406321416820466, 'commit_timestamp_nsecs': 1776406336483084004, 'custom_metadata': {}} from gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/0/_CHECKPOINT_METADATA
I0417 06:15:03.977206 132359944922880 checkpoint_manager.py:1871] Missing metrics for step 0
I0417 06:15:03.992971 132482001123136 checkpoint_manager.py:1812] Found 3 checkpoint steps in gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints
I0417 06:15:04.426179 132482001123136 checkpoint_manager.py:929] [process=6][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_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=5), preservation_policy=LatestN(n=None), prevent_write_metrics=False, enable_should_save_is_saving_in_progress_check=True, enable_per_process_directory_creation=False, lightweight_initialize=False), root_directory=gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x787d26e96780>
I0417 06:15:04.426352 132482001123136 checkpointing.py:302] Checkpoint manager created!
I0417 06:15:05.391495 132482001123136 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0417 06:15:05.391611 132482001123136 checkpointing.py:582] restoring from this run's directory step 9
I0417 06:15:05.649556 132482001123136 event_tracking.py:70] [process=6] [sync] Started load checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/9.
I0417 06:15:05.896011 132482001123136 checkpointer.py:307] Restoring checkpoint from gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/9.
I0417 06:15:05.896420 132482001123136 event_tracking.py:125] [process=6] [sync] Finished blocking load in 0.25 seconds. Continuing load @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/9.
I0417 06:15:09.328103    1527 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0417 06:15:19.193521 132482001123136 jax_array_handlers.py:843] [process=6] /jax/orbax/read/worker/io/requested throughput: 139.249 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 11.348556280136108 s) (per-host)
I0417 06:15:19.204117 132482001123136 base_pytree_checkpoint_handler.py:130] [process=6] /jax/checkpoint/read/gbytes_per_sec: 129.796 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 12.193037509918213 s) (per-host)
I0417 06:15:19.549930 132482001123136 event_tracking.py:138] [process=6] [sync] Finished load in 13.90 seconds @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/9
I0417 06:15:19.550084 132482001123136 standard_logger.py:34] {'step': 9, 'event_type': 'restore', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints', 'checkpointer_start_time': 1776406505.6494584, 'checkpointer_duration_secs': 13.900592803955078, 'checkpoint_manager_start_time': 1776406505.392223, 'checkpoint_manager_duration_secs': 14.157830953598022}
fsdp: 32
I0417 06:15:19.625348 132482001123136 maxtext_utils.py:1805]  decoder/decoder_norm/scale/value
    Shape:     float32[2048]
    Physical:  (None,)
I0417 06:15:19.625460 132482001123136 maxtext_utils.py:1805]  decoder/layers/mlp/wi_0/kernel/value
    Shape:     float32[2048,16,7168]
    Physical:  ('fsdp', None, None)
I0417 06:15:19.625510 132482001123136 maxtext_utils.py:1805]  decoder/layers/mlp/wi_1/kernel/value
    Shape:     float32[2048,16,7168]
    Physical:  ('fsdp', None, None)
I0417 06:15:19.625556 132482001123136 maxtext_utils.py:1805]  decoder/layers/mlp/wo/kernel/value
    Shape:     float32[7168,16,2048]
    Physical:  (None, None, 'fsdp')
I0417 06:15:19.625593 132482001123136 maxtext_utils.py:1805]  decoder/layers/post_self_attention_layer_norm/scale/value
    Shape:     float32[2048,16]
    Physical:  (None, None)
I0417 06:15:19.625628 132482001123136 maxtext_utils.py:1805]  decoder/layers/pre_self_attention_layer_norm/scale/value
    Shape:     float32[2048,16]
    Physical:  (None, None)
I0417 06:15:19.625664 132482001123136 maxtext_utils.py:1805]  decoder/layers/self_attention/key/kernel/value
    Shape:     float32[2048,16,16,128]
    Physical:  ('fsdp', None, None, None)
I0417 06:15:19.625700 132482001123136 maxtext_utils.py:1805]  decoder/layers/self_attention/out/kernel/value
    Shape:     float32[16,16,128,2048]
    Physical:  (None, None, None, 'fsdp')
I0417 06:15:19.625733 132482001123136 maxtext_utils.py:1805]  decoder/layers/self_attention/query/kernel/value
    Shape:     float32[2048,16,16,128]
    Physical:  ('fsdp', None, None, None)
I0417 06:15:19.625765 132482001123136 maxtext_utils.py:1805]  decoder/layers/self_attention/value/kernel/value
    Shape:     float32[2048,16,16,128]
    Physical:  ('fsdp', None, None, None)
I0417 06:15:19.625797 132482001123136 maxtext_utils.py:1805]  decoder/logits_dense/kernel/value
    Shape:     float32[2048,32000]
    Physical:  ('fsdp', None)
I0417 06:15:19.625846 132482001123136 maxtext_utils.py:1805]  token_embedder/embedding/value
    Shape:     float32[32000,2048]
    Physical:  (None, 'fsdp')

I0417 06:15:20.026074 132482001123136 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0417 06:15:20.026168 132482001123136 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0417 06:15:20.031639 132482001123136 nnx_decoders.py:465] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0417 06:15:20.031695 132482001123136 nnx_decoders.py:465] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0417 06:15:20.048052 132482001123136 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0417 06:15:20.048112 132482001123136 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0417 06:15:20.063720 132482001123136 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0417 06:15:20.063776 132482001123136 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0417 06:15:20.087871 132482001123136 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0417 06:15:20.087936 132482001123136 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0417 06:15:20.103925 132482001123136 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0417 06:15:20.103986 132482001123136 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0417 06:15:20.119944 132482001123136 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0417 06:15:20.120015 132482001123136 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0417 06:15:20.149732 132482001123136 attentions.py:1197] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0417 06:15:20.149800 132482001123136 attentions.py:1197] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0417 06:15:20.169597 132482001123136 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0417 06:15:20.169666 132482001123136 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0417 06:15:31.376384 132482001123136 max_utils.py:791] Total memory size: 1.5 GB, Output size: 0.4 GB, Temp size: 1.1 GB, Argument size: 0.4 GB, Host temp size: 0.0 GB.
I0417 06:15:31.378680 132482001123136 metric_logger.py:289] number parameters: 1.104 billion
I0417 06:15:42.769709 132482001123136 checkpointing.py:794] Waiting for step 10 to finish before checkpoint...
I0417 06:15:42.923990 132482001123136 checkpointing.py:798] Waited 0.1542680263519287 seconds for step 10 to finish before starting checkpointing.
I0417 06:15:42.926201 132482001123136 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0417 06:15:42.927764 132482001123136 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 10
I0417 06:15:42.929174 132482001123136 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/10.
I0417 06:15:43.272565 132482001123136 signaling_client.py:364] Using JaxDistributedSignalingClient
I0417 06:15:43.273536 132482001123136 jax_array_handlers.py:360] Scheduling D2H of 69 prioritized jax.Array.
I0417 06:15:43.273593 132482001123136 replica_slices.py:424] 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
I0417 06:15:43.551753 132482001123136 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.279975s
I0417 06:15:43.551939 132482001123136 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 5.374 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.28704071044921875 s) (per-host)
I0417 06:15:43.551993 132482001123136 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.287105s (batch_requests_ready=0.002695s, total_serialization_initiated=0.284338s, others=0.000073s)
I0417 06:15:43.552088 132482001123136 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.291078s (all_items=0.000018s, per_item={'items': '0.00001788'}, temp_paths=0.291060)
I0417 06:15:43.552841 132482001123136 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.62 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/10.
I0417 06:15:43.553126 132356161648384 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-17 06:35:43.553092
I0417 06:15:43.560154 132482001123136 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=10] Starting CheckpointManager Save Finalize thread=save_finalize
I0417 06:15:43.560441 132355658348288 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0417 06:15:43.560599 132482001123136 standard_logger.py:34] {'step': 10, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776406542.9261825, 'wait_for_prev_duration_secs': 6.222724914550781e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776406542.927803, 'checkpointer_blocking_duration_secs': 0.6254777908325195, 'get_old_steps_start_time': 1776406543.553303, 'get_old_steps_duration_secs': 3.075599670410156e-05, 'checkpoint_manager_blocking_start_time': 1776406542.9243484, 'checkpoint_manager_blocking_duration_secs': 0.6362130641937256}
I0417 06:15:43.560707 132482001123136 checkpointing.py:409] Started an asynchronous checkpoint save for step 10
I0417 06:15:43.560773 132482001123136 max_utils.py:750] 
Memstats: After params initialized:
I0417 06:15:43.560832 132482001123136 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_24(process=6,(0,6,0,0))
I0417 06:15:43.560866 132482001123136 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_25(process=6,(1,6,0,0))
I0417 06:15:43.560893 132482001123136 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_28(process=6,(0,7,0,0))
I0417 06:15:43.560918 132482001123136 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_29(process=6,(1,7,0,0))
I0417 06:15:43.876060 132482001123136 metric_logger.py:185] completed step: 10, seconds: 11.390, TFLOP/s/device: 1.193, Tokens/s/device: 179.808, total_weights: 65536, loss: 6.827
I0417 06:15:44.054218 132482001123136 metric_logger.py:185] completed step: 11, seconds: 1.105, TFLOP/s/device: 12.299, Tokens/s/device: 1853.769, total_weights: 65536, loss: 6.522
I0417 06:15:44.201695 132482001123136 metric_logger.py:185] completed step: 12, seconds: 0.022, TFLOP/s/device: 630.932, Tokens/s/device: 95100.998, total_weights: 65536, loss: 6.260
I0417 06:15:44.349709 132482001123136 metric_logger.py:185] completed step: 13, seconds: 0.164, TFLOP/s/device: 82.722, Tokens/s/device: 12468.722, total_weights: 65536, loss: 6.039
I0417 06:15:44.356061 132482001123136 checkpointing.py:794] Waiting for step 15 to finish before checkpoint...
I0417 06:15:44.645277 132482001123136 checkpointing.py:798] Waited 0.2891857624053955 seconds for step 15 to finish before starting checkpointing.
I0417 06:15:44.648146 132482001123136 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=10][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0417 06:15:48.385600 132356144862976 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/10/items/array_metadatas/process_6
I0417 06:15:53.908153 132356161648384 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 148.413 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 10.643219947814941 s) (per-host)
I0417 06:15:53.908283 132356161648384 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 10.355044s.
I0417 06:16:01.052938 132356161648384 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 17.499682s.
I0417 06:16:01.053215 132355658348288 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0417 06:16:01.053337 132355658348288 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0417 06:16:01.053389 132355658348288 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=10] CheckpointManager Save Finalize is syncing with other hosts...
I0417 06:16:01.054971 132355658348288 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=10] CheckpointManager Save Finalize is done on all hosts.
I0417 06:16:01.055171 132482001123136 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=10][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=10.
W0417 06:16:01.055310 132482001123136 checkpoint_manager.py:1452] Waiting for previous save to complete took 16.407166 seconds. If this number is high, consider checkpointing less frequently.
I0417 06:16:01.057246 132482001123136 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 15
I0417 06:16:01.059616 132482001123136 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/15.
I0417 06:16:01.775786 132482001123136 jax_array_handlers.py:360] Scheduling D2H of 69 prioritized jax.Array.
I0417 06:16:01.775904 132482001123136 replica_slices.py:424] 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
I0417 06:16:01.800994 132482001123136 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.026833s
I0417 06:16:01.801125 132482001123136 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 45.561 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.03385758399963379 s) (per-host)
I0417 06:16:01.801172 132482001123136 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.033914s (batch_requests_ready=0.002809s, total_serialization_initiated=0.031043s, others=0.000062s)
I0417 06:16:01.801246 132482001123136 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.038931s (all_items=0.000014s, per_item={'items': '0.00001359'}, temp_paths=0.038917)
I0417 06:16:01.801935 132482001123136 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.74 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/15.
I0417 06:16:01.802253 132355658348288 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-17 06:36:01.802217
I0417 06:16:01.826556 132482001123136 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=15] Starting CheckpointManager Save Finalize thread=save_finalize
I0417 06:16:01.826895 132356144862976 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0417 06:16:01.827061 132482001123136 standard_logger.py:34] {'step': 15, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776406544.6481159, 'wait_for_prev_duration_secs': 16.40716552734375, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776406561.0572872, 'checkpointer_blocking_duration_secs': 0.7451252937316895, 'get_old_steps_start_time': 1776406561.8024356, 'get_old_steps_duration_secs': 3.075599670410156e-05, 'checkpoint_manager_blocking_start_time': 1776406544.645633, 'checkpoint_manager_blocking_duration_secs': 17.181392192840576}
I0417 06:16:01.827174 132482001123136 checkpointing.py:409] Started an asynchronous checkpoint save for step 15
I0417 06:16:01.828001 132482001123136 metric_logger.py:185] completed step: 14, seconds: 0.147, TFLOP/s/device: 92.264, Tokens/s/device: 13907.091, total_weights: 65536, loss: 5.858
I0417 06:16:01.836062 132482001123136 metric_logger.py:185] completed step: 15, seconds: 0.148, TFLOP/s/device: 91.649, Tokens/s/device: 13814.316, total_weights: 65536, loss: 5.713
I0417 06:16:07.162142 132356153255680 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/15/items/array_metadatas/process_6
I0417 06:16:11.916863 132355658348288 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 155.632 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 10.149543046951294 s) (per-host)
I0417 06:16:11.916980 132355658348288 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 10.114602s.
I0417 06:16:18.464967 132355658348288 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 16.662573s.
I0417 06:16:18.465258 132356144862976 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0417 06:16:18.465378 132356144862976 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0417 06:16:18.465427 132356144862976 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=15] CheckpointManager Save Finalize is syncing with other hosts...
I0417 06:16:18.467013 132356144862976 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=15] CheckpointManager Save Finalize is done on all hosts.
I0417 06:16:23.366774 132482001123136 metric_logger.py:185] completed step: 16, seconds: 17.478, TFLOP/s/device: 0.777, Tokens/s/device: 117.174, total_weights: 65536, loss: 5.599
I0417 06:16:23.514336 132482001123136 metric_logger.py:185] completed step: 17, seconds: 21.386, TFLOP/s/device: 0.635, Tokens/s/device: 95.765, total_weights: 65536, loss: 5.511
I0417 06:16:23.662223 132482001123136 metric_logger.py:185] completed step: 18, seconds: 0.153, TFLOP/s/device: 88.696, Tokens/s/device: 13369.193, total_weights: 65536, loss: 5.442
I0417 06:16:23.810869 132482001123136 checkpointing.py:794] Waiting for step 19 to finish before checkpoint...
I0417 06:16:23.811583 132482001123136 checkpointing.py:798] Waited 0.0007255077362060547 seconds for step 19 to finish before starting checkpointing.
I0417 06:16:23.813468 132482001123136 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0417 06:16:23.815138 132482001123136 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 19
I0417 06:16:23.816565 132482001123136 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/19.
I0417 06:16:24.123075 132482001123136 jax_array_handlers.py:360] Scheduling D2H of 69 prioritized jax.Array.
I0417 06:16:24.123224 132482001123136 replica_slices.py:424] 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
I0417 06:16:24.148280 132482001123136 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.026853s
I0417 06:16:24.148405 132482001123136 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 45.521 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.03388714790344238 s) (per-host)
I0417 06:16:24.148451 132482001123136 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.033942s (batch_requests_ready=0.002838s, total_serialization_initiated=0.031045s, others=0.000059s)
I0417 06:16:24.148528 132482001123136 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.038039s (all_items=0.000011s, per_item={'items': '0.00001121'}, temp_paths=0.038028)
I0417 06:16:24.149194 132482001123136 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.33 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/19.
I0417 06:16:24.149517 132352395159296 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-17 06:36:24.149478
I0417 06:16:24.153892 132482001123136 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=19] Starting CheckpointManager Save Finalize thread=save_finalize
I0417 06:16:24.154176 132356144862976 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0417 06:16:24.154342 132482001123136 standard_logger.py:34] {'step': 19, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776406583.8134365, 'wait_for_prev_duration_secs': 7.271766662597656e-05, 'time_between_consecutive_saves_sec': 5.346384286880493, 'checkpointer_blocking_start_time': 1776406583.8151755, 'checkpointer_blocking_duration_secs': 0.33449435234069824, 'get_old_steps_start_time': 1776406584.1496885, 'get_old_steps_duration_secs': 2.6464462280273438e-05, 'checkpoint_manager_blocking_start_time': 1776406583.8118377, 'checkpoint_manager_blocking_duration_secs': 0.34247279167175293}
I0417 06:16:24.154452 132482001123136 checkpointing.py:409] Started an asynchronous checkpoint save for step 19
I0417 06:16:24.154500 132482001123136 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=19][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0417 06:16:29.213061 132356153255680 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260417_023710/nnx_xpk_feat_nnx_post_train_fixes_20260417_023710_15_ocdbt_false/checkpoints/19/items/array_metadatas/process_6
I0417 06:16:34.159661 132352395159296 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 157.250 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 10.04511308670044 s) (per-host)
I0417 06:16:34.159769 132352395159296 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 10.010131s.
I0417 06:16:40.314634 132352395159296 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 16.164979s.
I0417 06:16:40.314909 132356144862976 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0417 06:16:40.315047 132356144862976 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0417 06:16:40.315103 132356144862976 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=19] CheckpointManager Save Finalize is syncing with other hosts...
I0417 06:16:40.316630 132356144862976 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=19] CheckpointManager Save Finalize is done on all hosts.
I0417 06:16:40.316864 132482001123136 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=19][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=19.
I0417 06:16:40.317037 132482001123136 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0417 06:16:40.317722 132482001123136 metric_logger.py:185] completed step: 19, seconds: 0.148, TFLOP/s/device: 92.010, Tokens/s/device: 13868.761, total_weights: 65536, loss: 5.385
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Fri Apr 17 06:16:49 UTC 2026
EXIT_CODE=0