MaxView

XPK Start: Thu Apr 23 11:42:06 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. 
2026-04-23 11:42:30.944869: 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)
I0423 11:42:31.154218 136649762391872 max_utils.py:273] Attempting to initialize the jax distributed system...
I0423 11:42:40.193508 136649762391872 distributed.py:149] Starting JAX distributed service on [::]:8482
I0423 11:42:40.195848 136649762391872 distributed.py:172] Connecting to JAX distributed service on mt-10-shardy-true-2bihb-slice-job-0-0.mt-10-shardy-true-2bihb:8482
I0423 11:42:41.868933 136649762391872 max_utils.py:284] Jax distributed system initialized!
I0423 11:42:48.311395 136649762391872 max_utils.py:800] System Information: Jax Version: 0.9.2
I0423 11:42:48.311500 136649762391872 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0423 11:42:48.311540 136649762391872 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
I0423 11:42:48.311586 136649762391872 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0423 11:42:49.003104 136649762391872 maxtext_utils.py:1732] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0423 11:42:49.117280 136649762391872 checkpointing.py:688] Setting up checkpoint logger...
I0423 11:42:49.117396 136649762391872 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0423 11:42:49.117440 136649762391872 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0423 11:42:49.117636 136649762391872 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 0x7c47ac11b260>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0423 11:42:52.102299 136649762391872 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0423 11:42:52.102688 136649762391872 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 0x7c335c4e4f50>}, handler_registry=None
I0423 11:42:52.102964 136649762391872 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7c335c4e4f50>` 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`.
I0423 11:42:52.103020 136649762391872 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7c33745e62d0>` 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`.
I0423 11:42:52.103073 136649762391872 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 0x7c335c4e4f50>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7c335c4e4f50>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7c33745e62d0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7c33745e62d0>}).
I0423 11:42:52.103424 136649762391872 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0423 11:42:52.103514 136649762391872 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7c325c6cb4c0> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0423 11:42:52.979182 136649762391872 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints
I0423 11:42:52.981416 136649762391872 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_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7c325c6e3620>
I0423 11:42:52.981529 136649762391872 checkpointing.py:302] Checkpoint manager created!
I0423 11:42:53.981127 136649762391872 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0423 11:42:53.981250 136649762391872 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32

I0423 11:42:55.755470 136649762391872 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0423 11:42:55.755569 136649762391872 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 11:42:55.761240 136649762391872 nnx_decoders.py:465] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0423 11:42:55.761297 136649762391872 nnx_decoders.py:465] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 11:42:55.777748 136649762391872 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0423 11:42:55.777811 136649762391872 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 11:42:55.793828 136649762391872 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0423 11:42:55.793890 136649762391872 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 11:42:55.818376 136649762391872 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0423 11:42:55.818444 136649762391872 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 11:42:55.834600 136649762391872 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0423 11:42:55.834673 136649762391872 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 11:42:55.850630 136649762391872 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0423 11:42:55.850702 136649762391872 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 11:42:55.882723 136649762391872 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0423 11:42:55.882798 136649762391872 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 11:42:55.903077 136649762391872 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0423 11:42:55.903142 136649762391872 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0423 11:43:06.909140 136649762391872 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.
I0423 11:43:06.911473 136649762391872 metric_logger.py:301] number parameters: 1.104 billion
I0423 11:43:18.173700 136649762391872 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0423 11:43:18.326187 136649762391872 checkpointing.py:798] Waited 0.15247225761413574 seconds for step 0 to finish before starting checkpointing.
I0423 11:43:18.328555 136649762391872 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0423 11:43:18.330264 136649762391872 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0423 11:43:18.331945 136649762391872 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints/0.
I0423 11:43:18.622452 136649762391872 signaling_client.py:364] Using JaxDistributedSignalingClient
I0423 11:43:18.623365 136649762391872 jax_array_handlers.py:360] Scheduling D2H of 69 prioritized jax.Array.
I0423 11:43:18.623424 136649762391872 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
I0423 11:43:18.899974 136649762391872 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.278280s
I0423 11:43:18.900152 136649762391872 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.360 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.2877964973449707 s) (per-host)
I0423 11:43:18.900204 136649762391872 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.287859s (batch_requests_ready=0.003474s, total_serialization_initiated=0.284315s, others=0.000071s)
I0423 11:43:18.900314 136649762391872 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.292140s (all_items=0.000018s, per_item={'items': '0.00001764'}, temp_paths=0.292123)
I0423 11:43:18.901151 136649762391872 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.57 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints/0.
I0423 11:43:18.901399 136521537124096 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-23 12:03:18.901374
I0423 11:43:18.910901 136649762391872 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0423 11:43:18.911162 136518890944256 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0423 11:43:18.911288 136649762391872 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776944598.328537, 'wait_for_prev_duration_secs': 6.318092346191406e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776944598.3303032, 'checkpointer_blocking_duration_secs': 0.571204662322998, 'get_old_steps_start_time': 1776944598.9015322, 'get_old_steps_duration_secs': 3.1948089599609375e-05, 'checkpoint_manager_blocking_start_time': 1776944598.3265698, 'checkpoint_manager_blocking_duration_secs': 0.5846784114837646}
I0423 11:43:18.911396 136649762391872 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0423 11:43:18.911470 136649762391872 max_utils.py:750] 
Memstats: After params initialized:
I0423 11:43:18.911519 136649762391872 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_18(process=5,(2,4,0,0))
I0423 11:43:18.911552 136649762391872 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_19(process=5,(3,4,0,0))
I0423 11:43:18.911579 136649762391872 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_22(process=5,(2,5,0,0))
I0423 11:43:18.911603 136649762391872 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_23(process=5,(3,5,0,0))
I0423 11:43:19.228196 136649762391872 metric_logger.py:196] completed step: 0, seconds: 11.261, TFLOP/s/device: 1.207, Tokens/s/device: 181.865, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52786.469
I0423 11:43:19.407301 136649762391872 metric_logger.py:196] completed step: 1, seconds: 1.053, TFLOP/s/device: 12.908, Tokens/s/device: 1945.566, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52786.469
I0423 11:43:19.857743 136649762391872 metric_logger.py:196] completed step: 2, seconds: 0.033, TFLOP/s/device: 412.995, Tokens/s/device: 62251.132, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28632.133
I0423 11:43:20.005394 136649762391872 metric_logger.py:196] completed step: 3, seconds: 0.440, TFLOP/s/device: 30.868, Tokens/s/device: 4652.780, total_weights: 65536, loss: 9.732, lm_loss: 9.732, perplexity: 16855.789
I0423 11:43:20.301142 136649762391872 metric_logger.py:196] completed step: 4, seconds: 0.165, TFLOP/s/device: 82.139, Tokens/s/device: 12380.831, total_weights: 65536, loss: 9.274, lm_loss: 9.274, perplexity: 10661.594
I0423 11:43:20.308476 136649762391872 metric_logger.py:196] completed step: 5, seconds: 0.146, TFLOP/s/device: 92.883, Tokens/s/device: 14000.355, total_weights: 65536, loss: 8.888, lm_loss: 8.888, perplexity: 7245.978
I0423 11:43:21.996867    2837 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0423 11:43:24.535555 136519906428672 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints/0/items/array_metadatas/process_5
I0423 11:43:42.545504 136649762391872 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.854, Tokens/s/device: 6911.587, total_weights: 65536, loss: 8.589, lm_loss: 8.589, perplexity: 5371.156
I0423 11:43:42.693172 136649762391872 metric_logger.py:196] completed step: 7, seconds: 22.090, TFLOP/s/device: 0.615, Tokens/s/device: 92.710, total_weights: 65536, loss: 8.380, lm_loss: 8.380, perplexity: 4360.465
I0423 11:43:42.840918 136649762391872 metric_logger.py:196] completed step: 8, seconds: 0.154, TFLOP/s/device: 88.485, Tokens/s/device: 13337.414, total_weights: 65536, loss: 8.251, lm_loss: 8.251, perplexity: 3831.256
I0423 11:43:42.989319 136649762391872 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0423 11:43:42.989986 136649762391872 checkpointing.py:798] Waited 0.0006785392761230469 seconds for step 9 to finish before starting checkpointing.
I0423 11:43:42.991982 136649762391872 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0423 11:43:55.546450 136521537124096 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 42.768 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 36.93406295776367 s) (per-host)
I0423 11:43:55.546556 136521537124096 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.645082s.
I0423 11:44:05.173712 136521537124096 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 46.272221s.
I0423 11:44:05.173949 136518890944256 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0423 11:44:05.174026 136518890944256 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0423 11:44:05.174083 136518890944256 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0423 11:44:05.175644 136518890944256 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0423 11:44:05.175822 136649762391872 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.
W0423 11:44:05.175978 136649762391872 checkpoint_manager.py:1452] Waiting for previous save to complete took 22.183995 seconds. If this number is high, consider checkpointing less frequently.
I0423 11:44:05.177775 136649762391872 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0423 11:44:05.179942 136649762391872 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints/9.
I0423 11:44:05.894447 136649762391872 jax_array_handlers.py:360] Scheduling D2H of 69 prioritized jax.Array.
I0423 11:44:05.894546 136649762391872 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
I0423 11:44:05.929425 136649762391872 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.036488s
I0423 11:44:05.929600 136649762391872 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 35.236 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.04377865791320801 s) (per-host)
I0423 11:44:05.929664 136649762391872 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.043842s (batch_requests_ready=0.002862s, total_serialization_initiated=0.040908s, others=0.000072s)
I0423 11:44:05.929769 136649762391872 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.048043s (all_items=0.000016s, per_item={'items': '0.00001574'}, temp_paths=0.048028)
I0423 11:44:05.930493 136649762391872 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.75 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints/9.
I0423 11:44:05.930795 136518890944256 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-23 12:04:05.930762
I0423 11:44:05.932763 136649762391872 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0423 11:44:05.933005 136498556958464 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0423 11:44:05.933127 136649762391872 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776944622.9919515, 'wait_for_prev_duration_secs': 22.18399477005005, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776944645.1778142, 'checkpointer_blocking_duration_secs': 0.7531216144561768, 'get_old_steps_start_time': 1776944645.9309604, 'get_old_steps_duration_secs': 3.552436828613281e-05, 'checkpoint_manager_blocking_start_time': 1776944622.9902143, 'checkpoint_manager_blocking_duration_secs': 22.942879915237427}
I0423 11:44:05.933233 136649762391872 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0423 11:44:05.933276 136649762391872 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0423 11:44:11.084125 136519906428672 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260423_093806_10_shardy_true/checkpoints/9/items/array_metadatas/process_5
I0423 11:44:47.319041 136518890944256 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 38.124 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 41.43318033218384 s) (per-host)
I0423 11:44:47.319169 136518890944256 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 41.388266s.
I0423 11:44:55.254190 136518890944256 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 49.323272s.
I0423 11:44:55.254484 136498556958464 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0423 11:44:55.254608 136498556958464 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0423 11:44:55.254674 136498556958464 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0423 11:44:55.256046 136498556958464 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0423 11:44:55.256251 136649762391872 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.
I0423 11:44:55.256416 136649762391872 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0423 11:44:55.257378 136649762391872 metric_logger.py:196] completed step: 9, seconds: 0.148, TFLOP/s/device: 91.724, Tokens/s/device: 13825.694, total_weights: 65536, loss: 8.175, lm_loss: 8.175, perplexity: 3551.438
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Thu Apr 23 11:45:06 UTC 2026
EXIT_CODE=0