XPK Start: Fri Apr 24 20:15:07 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.
2026-04-24 20:15:32.721532: 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)
I0424 20:15:32.931861 140232701425472 max_utils.py:273] Attempting to initialize the jax distributed system...
I0424 20:15:41.972488 140232701425472 distributed.py:149] Starting JAX distributed service on [::]:8482
I0424 20:15:41.974905 140232701425472 distributed.py:172] Connecting to JAX distributed service on mt-03-dropout-bmjz6-slice-job-0-0.mt-03-dropout-bmjz6:8482
I0424 20:17:13.650572 140232701425472 max_utils.py:284] Jax distributed system initialized!
I0424 20:17:19.722511 140232701425472 max_utils.py:800] System Information: Jax Version: 0.9.2
I0424 20:17:19.722616 140232701425472 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0424 20:17:19.722655 140232701425472 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
I0424 20:17:19.722690 140232701425472 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0424 20:17:20.430947 140232701425472 maxtext_utils.py:1565] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0424 20:17:20.431243 140232701425472 checkpointing.py:677] Setting up checkpoint logger...
I0424 20:17:20.431297 140232701425472 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0424 20:17:20.431342 140232701425472 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0424 20:17:20.431664 140232701425472 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 0x7f89e1718200>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0424 20:17:23.284350 140232701425472 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0424 20:17:23.284585 140232701425472 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 0x7f76384ff920>}, handler_registry=None
I0424 20:17:23.284821 140232701425472 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f76384ff920>` 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`.
I0424 20:17:23.284869 140232701425472 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f7638507320>` 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`.
I0424 20:17:23.284903 140232701425472 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 0x7f76384ff920>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f76384ff920>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f7638507320>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f7638507320>}).
I0424 20:17:23.285231 140232701425472 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0424 20:17:23.285302 140232701425472 async_checkpointer.py:192] [process=6][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7f76100ff560> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0424 20:17:24.546922 140232701425472 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints
I0424 20:17:24.979947 140232701425472 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=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/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7f76384fdb50>
I0424 20:17:24.980140 140232701425472 checkpointing.py:301] Checkpoint manager created!
I0424 20:17:25.323918 140232701425472 nnx_wrappers.py:453] Unknown Logical: bfloat16[32,128,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0424 20:17:25.324038 140232701425472 nnx_wrappers.py:453] Unknown Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None).
I0424 20:17:25.704492 140232701425472 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,128,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0424 20:17:25.704583 140232701425472 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None).
I0424 20:17:25.720574 140232701425472 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,128,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0424 20:17:25.720636 140232701425472 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None).
I0424 20:17:25.743780 140232701425472 attentions.py:1154] attentions/query Logical: bfloat16[32,128,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0424 20:17:25.743849 140232701425472 attentions.py:1154] attentions/query Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None).
I0424 20:17:25.760031 140232701425472 attentions.py:1155] attentions/key Logical: bfloat16[32,128,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0424 20:17:25.760106 140232701425472 attentions.py:1155] attentions/key Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None).
I0424 20:17:25.776125 140232701425472 attentions.py:1156] attentions/value Logical: bfloat16[32,128,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0424 20:17:25.776183 140232701425472 attentions.py:1156] attentions/value Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None).
I0424 20:17:25.800575 140232701425472 attentions.py:1198] attentions/out Logical: bfloat16[32,128,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0424 20:17:25.800648 140232701425472 attentions.py:1198] attentions/out Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None).
I0424 20:17:25.832200 140232701425472 linears.py:525] linears/x Logical: bfloat16[32,128,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0424 20:17:25.832298 140232701425472 linears.py:525] linears/x Physical: bfloat16[32,128,7168]....................................... ('fsdp', None, None).
I0424 20:17:26.046956 140232701425472 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0424 20:17:26.047070 140232701425472 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0424 20:17:27.494758 140232701425472 maxtext_utils.py:1668] params/params/decoder/decoder_norm/scale
Shape: float32[2048]
Logical: P('norm',)
Physical: (None,)
I0424 20:17:27.494886 140232701425472 maxtext_utils.py:1668] params/params/decoder/layers/mlp/wi_0/kernel
Shape: float32[2048,16,7168]
Logical: P('embed', 'layers', 'mlp')
Physical: ('fsdp', None, None)
I0424 20:17:27.494939 140232701425472 maxtext_utils.py:1668] params/params/decoder/layers/mlp/wi_1/kernel
Shape: float32[2048,16,7168]
Logical: P('embed', 'layers', 'mlp')
Physical: ('fsdp', None, None)
I0424 20:17:27.494996 140232701425472 maxtext_utils.py:1668] params/params/decoder/layers/mlp/wo/kernel
Shape: float32[7168,16,2048]
Logical: P('mlp', 'layers', 'embed')
Physical: (None, None, 'fsdp')
I0424 20:17:27.495048 140232701425472 maxtext_utils.py:1668] params/params/decoder/layers/post_self_attention_layer_norm/scale
Shape: float32[2048,16]
Logical: P('norm', 'layers')
Physical: (None, None)
I0424 20:17:27.495089 140232701425472 maxtext_utils.py:1668] params/params/decoder/layers/pre_self_attention_layer_norm/scale
Shape: float32[2048,16]
Logical: P('norm', 'layers')
Physical: (None, None)
I0424 20:17:27.495159 140232701425472 maxtext_utils.py:1668] params/params/decoder/layers/self_attention/key/kernel
Shape: float32[2048,16,16,128]
Logical: P('embed', 'layers', 'kv_heads', 'kv_head_dim')
Physical: ('fsdp', None, None, None)
I0424 20:17:27.495211 140232701425472 maxtext_utils.py:1668] params/params/decoder/layers/self_attention/out/kernel
Shape: float32[16,16,128,2048]
Logical: P('heads', 'layers', 'kv', 'embed')
Physical: (None, None, None, 'fsdp')
I0424 20:17:27.495250 140232701425472 maxtext_utils.py:1668] params/params/decoder/layers/self_attention/query/kernel
Shape: float32[2048,16,16,128]
Logical: P('embed', 'layers', 'q_heads', 'kv')
Physical: ('fsdp', None, None, None)
I0424 20:17:27.495285 140232701425472 maxtext_utils.py:1668] params/params/decoder/layers/self_attention/value/kernel
Shape: float32[2048,16,16,128]
Logical: P('embed', 'layers', 'kv_heads', 'kv_head_dim')
Physical: ('fsdp', None, None, None)
I0424 20:17:27.495338 140232701425472 maxtext_utils.py:1668] params/params/decoder/logits_dense/kernel
Shape: float32[2048,32000]
Logical: P('embed_vocab', 'vocab')
Physical: ('fsdp', None)
I0424 20:17:27.495388 140232701425472 maxtext_utils.py:1668] params/params/token_embedder/embedding
Shape: float32[32000,2048]
Logical: P('vocab', 'embed_vocab')
Physical: (None, 'fsdp')
I0424 20:17:28.019360 140232701425472 train.py:155] train/xent Logical: float32[32,128]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0424 20:17:28.019454 140232701425472 train.py:155] train/xent Physical: float32[32,128]............................................. ('fsdp', None).
I0424 20:17:28.034656 140232701425472 train.py:162] train/z_loss Logical: float32[32,128]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0424 20:17:28.034715 140232701425472 train.py:162] train/z_loss Physical: float32[32,128]............................................. ('fsdp', None).
I0424 20:17:31.630152 140232701425472 max_utils.py:791] Total memory size: 0.8 GB, Output size: 0.4 GB, Temp size: 0.4 GB, Argument size: 0.4 GB, Host temp size: 0.0 GB.
I0424 20:17:31.630924 140232701425472 metric_logger.py:301] number parameters: 1.104 billion
I0424 20:17:36.295809 140232701425472 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0424 20:17:36.368203 140232701425472 checkpointing.py:776] Waited 0.07238221168518066 seconds for step 0 to finish before starting checkpointing.
I0424 20:17:36.370917 140232701425472 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0424 20:17:36.372737 140232701425472 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 0
I0424 20:17:36.374214 140232701425472 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints/0.
I0424 20:17:36.662303 140232701425472 signaling_client.py:364] Using JaxDistributedSignalingClient
I0424 20:17:36.663197 140232701425472 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0424 20:17:36.663252 140232701425472 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
I0424 20:17:36.944405 140232701425472 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.282180s
I0424 20:17:36.944577 140232701425472 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 5.364 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.28758978843688965 s) (per-host)
I0424 20:17:36.944629 140232701425472 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.287652s (batch_requests_ready=0.002199s, total_serialization_initiated=0.285382s, others=0.000071s)
I0424 20:17:36.944718 140232701425472 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.291740s (all_items=0.000019s, per_item={'items': '0.00001884'}, temp_paths=0.291721)
I0424 20:17:36.945602 140232701425472 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.57 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints/0.
I0424 20:17:36.945908 140108208535296 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-24 20:37:36.945872
I0424 20:17:36.953038 140232701425472 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0424 20:17:36.953297 140106025158400 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0424 20:17:36.953415 140232701425472 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777061856.3708982, 'wait_for_prev_duration_secs': 6.246566772460938e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777061856.372776, 'checkpointer_blocking_duration_secs': 0.5732333660125732, 'get_old_steps_start_time': 1777061856.9460325, 'get_old_steps_duration_secs': 2.956390380859375e-05, 'checkpoint_manager_blocking_start_time': 1777061856.368685, 'checkpoint_manager_blocking_duration_secs': 0.5846924781799316}
I0424 20:17:36.953523 140232701425472 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0424 20:17:36.953574 140232701425472 max_utils.py:750]
Memstats: After params initialized:
I0424 20:17:36.953622 140232701425472 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_24(process=6,(0,6,0,0))
I0424 20:17:36.953654 140232701425472 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_25(process=6,(1,6,0,0))
I0424 20:17:36.953681 140232701425472 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_28(process=6,(0,7,0,0))
I0424 20:17:36.953706 140232701425472 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_29(process=6,(1,7,0,0))
I0424 20:17:37.266385 140232701425472 metric_logger.py:196] completed step: 0, seconds: 4.665, TFLOP/s/device: 0.172, Tokens/s/device: 27.440, total_weights: 4096, loss: 10.889, lm_loss: 10.889, perplexity: 53560.699
I0424 20:17:37.360754 140232701425472 metric_logger.py:196] completed step: 1, seconds: 0.969, TFLOP/s/device: 0.826, Tokens/s/device: 132.095, total_weights: 4096, loss: 10.902, lm_loss: 10.902, perplexity: 54298.523
I0424 20:17:37.782611 140232701425472 metric_logger.py:196] completed step: 2, seconds: 0.024, TFLOP/s/device: 32.844, Tokens/s/device: 5249.344, total_weights: 4096, loss: 9.956, lm_loss: 9.956, perplexity: 21082.051
I0424 20:17:37.853090 140232701425472 metric_logger.py:196] completed step: 3, seconds: 0.422, TFLOP/s/device: 1.896, Tokens/s/device: 303.076, total_weights: 4096, loss: 9.139, lm_loss: 9.139, perplexity: 9314.691
I0424 20:17:37.995083 140232701425472 metric_logger.py:196] completed step: 4, seconds: 0.076, TFLOP/s/device: 10.576, Tokens/s/device: 1690.238, total_weights: 4096, loss: 8.459, lm_loss: 8.459, perplexity: 4715.493
I0424 20:17:38.001559 140232701425472 metric_logger.py:196] completed step: 5, seconds: 0.070, TFLOP/s/device: 11.373, Tokens/s/device: 1817.665, total_weights: 4096, loss: 7.924, lm_loss: 7.924, perplexity: 2762.373
I0424 20:17:39.794335 2783 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0424 20:17:42.265794 140106033551104 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints/0/items/array_metadatas/process_6
I0424 20:17:47.832530 140232701425472 metric_logger.py:196] completed step: 6, seconds: 0.143, TFLOP/s/device: 5.608, Tokens/s/device: 896.246, total_weights: 4096, loss: 7.553, lm_loss: 7.553, perplexity: 1906.617
I0424 20:17:47.903296 140232701425472 metric_logger.py:196] completed step: 7, seconds: 9.761, TFLOP/s/device: 0.082, Tokens/s/device: 13.113, total_weights: 4096, loss: 7.267, lm_loss: 7.267, perplexity: 1431.653
I0424 20:17:47.973993 140232701425472 metric_logger.py:196] completed step: 8, seconds: 0.075, TFLOP/s/device: 10.637, Tokens/s/device: 1700.116, total_weights: 4096, loss: 7.111, lm_loss: 7.111, perplexity: 1225.983
I0424 20:17:48.044160 140232701425472 checkpointing.py:772] Waiting for step 9 to finish before checkpoint...
I0424 20:17:48.044740 140232701425472 checkpointing.py:776] Waited 0.0006003379821777344 seconds for step 9 to finish before starting checkpointing.
I0424 20:17:48.046751 140232701425472 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0424 20:18:09.554223 140108208535296 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 48.016 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 32.89718675613403 s) (per-host)
I0424 20:18:09.554361 140108208535296 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 32.607816s.
I0424 20:18:17.703839 140108208535296 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 40.757279s.
I0424 20:18:17.704042 140106025158400 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0424 20:18:17.704131 140106025158400 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0424 20:18:17.704185 140106025158400 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0424 20:18:17.706980 140106025158400 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0424 20:18:17.707170 140232701425472 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0.
W0424 20:18:17.707302 140232701425472 checkpoint_manager.py:1452] Waiting for previous save to complete took 29.660553 seconds. If this number is high, consider checkpointing less frequently.
I0424 20:18:17.709008 140232701425472 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 9
I0424 20:18:17.711063 140232701425472 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints/9.
I0424 20:18:17.999787 140232701425472 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0424 20:18:17.999903 140232701425472 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
I0424 20:18:18.035120 140232701425472 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.036482s
I0424 20:18:18.035288 140232701425472 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 38.638 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.039923906326293945 s) (per-host)
I0424 20:18:18.035340 140232701425472 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.039987s (batch_requests_ready=0.001781s, total_serialization_initiated=0.038134s, others=0.000072s)
I0424 20:18:18.035434 140232701425472 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.044059s (all_items=0.000015s, per_item={'items': '0.00001550'}, temp_paths=0.044043)
I0424 20:18:18.036134 140232701425472 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.33 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints/9.
I0424 20:18:18.036475 140106025158400 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-24 20:38:18.036438
I0424 20:18:18.038388 140232701425472 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0424 20:18:18.038637 140106033551104 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0424 20:18:18.038769 140232701425472 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777061868.0467196, 'wait_for_prev_duration_secs': 29.660553455352783, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777061897.70905, 'checkpointer_blocking_duration_secs': 0.3275279998779297, 'get_old_steps_start_time': 1777061898.0365996, 'get_old_steps_duration_secs': 2.956390380859375e-05, 'checkpoint_manager_blocking_start_time': 1777061868.0449643, 'checkpoint_manager_blocking_duration_secs': 29.993772983551025}
I0424 20:18:18.038931 140232701425472 checkpointing.py:408] Started an asynchronous checkpoint save for step 9
I0424 20:18:18.038975 140232701425472 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0424 20:18:24.404957 140100787824384 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_03_dropout/checkpoints/9/items/array_metadatas/process_6
I0424 20:18:59.367827 140106025158400 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 38.180 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 41.37242579460144 s) (per-host)
I0424 20:18:59.367951 140106025158400 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 41.330865s.
I0424 20:19:07.893411 140106025158400 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 49.856309s.
I0424 20:19:07.893689 140106033551104 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0424 20:19:07.893805 140106033551104 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0424 20:19:07.893853 140106033551104 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0424 20:19:07.895366 140106033551104 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0424 20:19:07.895571 140232701425472 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9.
I0424 20:19:07.895742 140232701425472 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0424 20:19:07.896713 140232701425472 metric_logger.py:196] completed step: 9, seconds: 0.071, TFLOP/s/device: 11.359, Tokens/s/device: 1815.448, total_weights: 4096, loss: 6.981, lm_loss: 6.981, perplexity: 1075.867
Per train step:
Total TFLOPs: 0.80
split as 99.60% learnable weight flops and 0.40% attention flops
XPK End: Fri Apr 24 20:19:18 UTC 2026
EXIT_CODE=0