MaxView

XPK Start: Wed Apr 22 11:14:53 UTC 2026
PyTorch was not found. Models won't be available and only tokenizers, configuration and file/data utilities can be used.
`rope_parameters`'s factor field must be a float >= 1, got 40
`rope_parameters`'s beta_fast field must be a float, got 32
`rope_parameters`'s beta_slow field must be a float, got 1
DeepseekV32Config got `key=rope_scaling` in kwargs but hasn't set it as attribute. For RoPE standardization you need to set `self.rope_parameters` in model's config. 
2026-04-22 11:15:18.172409: 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)
I0422 11:15:18.381024 136620583561024 max_utils.py:273] Attempting to initialize the jax distributed system...
I0422 11:15:27.421521 136620583561024 distributed.py:149] Starting JAX distributed service on [::]:8482
I0422 11:15:27.423912 136620583561024 distributed.py:172] Connecting to JAX distributed service on mt-04-int8-8vo8t-slice-job-0-0.mt-04-int8-8vo8t:8482
I0422 11:15:28.661413 136620583561024 max_utils.py:284] Jax distributed system initialized!
I0422 11:15:35.122109 136620583561024 max_utils.py:800] System Information: Jax Version: 0.9.2
I0422 11:15:35.122221 136620583561024 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0422 11:15:35.122265 136620583561024 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
I0422 11:15:35.122303 136620583561024 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0422 11:15:35.817490 136620583561024 maxtext_utils.py:1732] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0422 11:15:36.369070 136620583561024 checkpointing.py:688] Setting up checkpoint logger...
I0422 11:15:36.369190 136620583561024 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0422 11:15:36.369251 136620583561024 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0422 11:15:36.369499 136620583561024 base_pytree_checkpoint_handler.py:441] 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 0x7c40dc17a6c0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0422 11:15:39.546794 136620583561024 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0422 11:15:39.547046 136620583561024 checkpoint_manager.py:708] [process=5][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7c2b985d7590>}, handler_registry=None
I0422 11:15:39.547327 136620583561024 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7c2b985d7590>` 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`.
I0422 11:15:39.547385 136620583561024 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7c2b9842e030>` 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`.
I0422 11:15:39.547435 136620583561024 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 0x7c2b985d7590>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7c2b985d7590>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7c2b9842e030>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7c2b9842e030>}).
I0422 11:15:39.547816 136620583561024 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0422 11:15:39.547900 136620583561024 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7c2c882731a0> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0422 11:15:40.313803 136620583561024 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints
I0422 11:15:40.765182 136620583561024 checkpoint_manager.py:929] [process=5][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=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, lightweight_initialize=False), root_directory=gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7c2b984f51f0>
I0422 11:15:40.765362 136620583561024 checkpointing.py:302] Checkpoint manager created!
I0422 11:15:42.122125 136620583561024 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0422 11:15:42.122248 136620583561024 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32

I0422 11:15:44.915981 136620583561024 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0422 11:15:44.916079 136620583561024 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 11:15:44.921700 136620583561024 nnx_decoders.py:465] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0422 11:15:44.921759 136620583561024 nnx_decoders.py:465] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 11:15:44.938191 136620583561024 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 11:15:44.938254 136620583561024 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 11:15:44.953837 136620583561024 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 11:15:44.953900 136620583561024 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 11:15:45.031378 136620583561024 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 11:15:45.031468 136620583561024 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 11:15:45.047442 136620583561024 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 11:15:45.047501 136620583561024 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 11:15:45.063098 136620583561024 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 11:15:45.063160 136620583561024 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 11:15:45.093034 136620583561024 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0422 11:15:45.093110 136620583561024 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 11:15:45.581785 136620583561024 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0422 11:15:45.581876 136620583561024 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0422 11:15:59.351016 136620583561024 max_utils.py:791] Total memory size: 1.8 GB, Output size: 0.4 GB, Temp size: 1.4 GB, Argument size: 0.4 GB, Host temp size: 0.0 GB.
I0422 11:15:59.354531 136620583561024 metric_logger.py:301] number parameters: 1.104 billion
I0422 11:16:13.970724 136620583561024 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0422 11:16:14.210520 136620583561024 checkpointing.py:798] Waited 0.23977971076965332 seconds for step 0 to finish before starting checkpointing.
I0422 11:16:14.212874 136620583561024 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 11:16:14.214673 136620583561024 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0422 11:16:14.215956 136620583561024 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints/0.
I0422 11:16:14.533476 136620583561024 signaling_client.py:364] Using JaxDistributedSignalingClient
I0422 11:16:14.534501 136620583561024 jax_array_handlers.py:360] Scheduling D2H of 111 prioritized jax.Array.
I0422 11:16:14.534564 136620583561024 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
I0422 11:16:14.818099 136620583561024 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.286193s
I0422 11:16:14.818266 136620583561024 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.131 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.3006305694580078 s) (per-host)
I0422 11:16:14.818318 136620583561024 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.300694s (batch_requests_ready=0.004659s, total_serialization_initiated=0.295964s, others=0.000070s)
I0422 11:16:14.818430 136620583561024 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.304822s (all_items=0.000017s, per_item={'items': '0.00001717'}, temp_paths=0.304805)
I0422 11:16:14.819297 136620583561024 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.60 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints/0.
I0422 11:16:14.819638 136487164389120 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 11:36:14.819597
I0422 11:16:14.827871 136620583561024 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 11:16:14.828169 136489314195200 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0422 11:16:14.828328 136620583561024 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776856574.2128563, 'wait_for_prev_duration_secs': 5.984306335449219e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776856574.2147105, 'checkpointer_blocking_duration_secs': 0.6050963401794434, 'get_old_steps_start_time': 1776856574.8198297, 'get_old_steps_duration_secs': 3.075599670410156e-05, 'checkpoint_manager_blocking_start_time': 1776856574.210969, 'checkpoint_manager_blocking_duration_secs': 0.6173169612884521}
I0422 11:16:14.828443 136620583561024 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0422 11:16:14.828519 136620583561024 max_utils.py:750] 
Memstats: After params initialized:
I0422 11:16:14.828567 136620583561024 max_utils.py:756] 	Using (GB) 0.44 / 31.25 (1.408000%) on TPU_18(process=5,(2,4,0,0))
I0422 11:16:14.828598 136620583561024 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_19(process=5,(3,4,0,0))
I0422 11:16:14.828623 136620583561024 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_22(process=5,(2,5,0,0))
I0422 11:16:14.828647 136620583561024 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_23(process=5,(3,5,0,0))
I0422 11:16:15.148764 136620583561024 metric_logger.py:196] completed step: 0, seconds: 14.614, TFLOP/s/device: 0.930, Tokens/s/device: 140.136, total_weights: 65536, loss: 10.872, lm_loss: 10.872, perplexity: 52668.902
I0422 11:16:15.402500 136620583561024 metric_logger.py:196] completed step: 1, seconds: 1.176, TFLOP/s/device: 11.558, Tokens/s/device: 1742.082, total_weights: 65536, loss: 10.872, lm_loss: 10.872, perplexity: 52668.902
I0422 11:16:15.862724 136620583561024 metric_logger.py:196] completed step: 2, seconds: 0.028, TFLOP/s/device: 483.752, Tokens/s/device: 72916.296, total_weights: 65536, loss: 10.260, lm_loss: 10.260, perplexity: 28557.658
I0422 11:16:16.091986 136620583561024 metric_logger.py:196] completed step: 3, seconds: 0.439, TFLOP/s/device: 30.930, Tokens/s/device: 4662.090, total_weights: 65536, loss: 9.728, lm_loss: 9.728, perplexity: 16789.145
I0422 11:16:16.552351 136620583561024 metric_logger.py:196] completed step: 4, seconds: 0.256, TFLOP/s/device: 53.075, Tokens/s/device: 8000.031, total_weights: 65536, loss: 9.271, lm_loss: 9.271, perplexity: 10625.563
I0422 11:16:16.561161 136620583561024 metric_logger.py:196] completed step: 5, seconds: 0.229, TFLOP/s/device: 59.242, Tokens/s/device: 8929.623, total_weights: 65536, loss: 8.885, lm_loss: 8.885, perplexity: 7225.917
I0422 11:16:18.321716    2921 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0422 11:16:20.360053 136487172781824 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 111 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints/0/items/array_metadatas/process_5
I0422 11:16:44.621131 136620583561024 metric_logger.py:196] completed step: 6, seconds: 0.461, TFLOP/s/device: 29.498, Tokens/s/device: 4446.307, total_weights: 65536, loss: 8.586, lm_loss: 8.586, perplexity: 5354.806
I0422 11:16:44.850577 136620583561024 metric_logger.py:196] completed step: 7, seconds: 27.833, TFLOP/s/device: 0.488, Tokens/s/device: 73.581, total_weights: 65536, loss: 8.378, lm_loss: 8.378, perplexity: 4350.756
I0422 11:16:45.079978 136620583561024 metric_logger.py:196] completed step: 8, seconds: 0.236, TFLOP/s/device: 57.662, Tokens/s/device: 8691.519, total_weights: 65536, loss: 8.249, lm_loss: 8.249, perplexity: 3824.619
I0422 11:16:45.310953 136620583561024 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0422 11:16:45.311900 136620583561024 checkpointing.py:798] Waited 0.0009603500366210938 seconds for step 9 to finish before starting checkpointing.
I0422 11:16:45.313958 136620583561024 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 11:16:48.907021 136487164389120 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 45.933 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 34.38934874534607 s) (per-host)
I0422 11:16:48.907132 136487164389120 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 34.087364s.
I0422 11:16:57.040470 136487164389120 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 42.220686s.
I0422 11:16:57.040766 136489314195200 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 11:16:57.040887 136489314195200 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0422 11:16:57.040938 136489314195200 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0422 11:16:57.043589 136489314195200 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0422 11:16:57.043777 136620583561024 checkpoint_manager.py:2032] [process=5][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0.
W0422 11:16:57.043915 136620583561024 checkpoint_manager.py:1452] Waiting for previous save to complete took 11.729958 seconds. If this number is high, consider checkpointing less frequently.
I0422 11:16:57.045810 136620583561024 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0422 11:16:57.047876 136620583561024 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints/9.
I0422 11:16:58.172512 136620583561024 jax_array_handlers.py:360] Scheduling D2H of 111 prioritized jax.Array.
I0422 11:16:58.172606 136620583561024 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
I0422 11:16:58.219426 136620583561024 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.049465s
I0422 11:16:58.219594 136620583561024 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 25.170 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.06128573417663574 s) (per-host)
I0422 11:16:58.219646 136620583561024 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.061347s (batch_requests_ready=0.004216s, total_serialization_initiated=0.057062s, others=0.000069s)
I0422 11:16:58.219780 136620583561024 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.065972s (all_items=0.000024s, per_item={'items': '0.00002408'}, temp_paths=0.065948)
I0422 11:16:58.220500 136620583561024 event_tracking.py:125] [process=5] [async] Finished blocking save in 1.17 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints/9.
I0422 11:16:58.220806 136489314195200 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 11:36:58.220774
I0422 11:16:58.222741 136620583561024 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 11:16:58.223039 136487172781824 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0422 11:16:58.223172 136620583561024 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776856605.3139284, 'wait_for_prev_duration_secs': 11.729957580566406, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776856617.045848, 'checkpointer_blocking_duration_secs': 1.1751024723052979, 'get_old_steps_start_time': 1776856618.2209733, 'get_old_steps_duration_secs': 3.0040740966796875e-05, 'checkpoint_manager_blocking_start_time': 1776856605.3121777, 'checkpoint_manager_blocking_duration_secs': 12.910961866378784}
I0422 11:16:58.223352 136620583561024 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0422 11:16:58.223398 136620583561024 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 11:17:04.049594 136465891702528 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 111 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260422_093106_04_int8/checkpoints/9/items/array_metadatas/process_5
I0422 11:17:41.292086 136489314195200 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 36.621 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 43.1337308883667 s) (per-host)
I0422 11:17:41.292210 136489314195200 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 43.071292s.
I0422 11:17:49.181445 136489314195200 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 50.960511s.
I0422 11:17:49.181763 136487172781824 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 11:17:49.181884 136487172781824 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0422 11:17:49.181933 136487172781824 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0422 11:17:49.183527 136487172781824 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0422 11:17:49.183726 136620583561024 checkpoint_manager.py:2032] [process=5][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9.
I0422 11:17:49.183917 136620583561024 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 11:17:49.184761 136620583561024 metric_logger.py:196] completed step: 9, seconds: 0.229, TFLOP/s/device: 59.330, Tokens/s/device: 8942.880, total_weights: 65536, loss: 8.174, lm_loss: 8.174, perplexity: 3546.104
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Wed Apr 22 11:17:58 UTC 2026
EXIT_CODE=0