MaxView

XPK Start: Sat Apr 25 20:44:03 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. 
2026-04-25 20:44:28.581293: 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)
I0425 20:44:28.792400 132924756768576 max_utils.py:273] Attempting to initialize the jax distributed system...
I0425 20:44:37.833911 132924756768576 distributed.py:149] Starting JAX distributed service on [::]:8482
I0425 20:44:37.836226 132924756768576 distributed.py:172] Connecting to JAX distributed service on mt-10-shardy-false-1434p-slice-job-0-0.mt-10-shardy-false-1434p:8482
I0425 20:44:39.307071 132924756768576 max_utils.py:284] Jax distributed system initialized!
I0425 20:44:45.347392 132924756768576 max_utils.py:800] System Information: Jax Version: 0.9.2
I0425 20:44:45.347500 132924756768576 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0425 20:44:45.347544 132924756768576 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
I0425 20:44:45.347580 132924756768576 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0425 20:44:46.053518 132924756768576 maxtext_utils.py:1565] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0425 20:44:46.053795 132924756768576 checkpointing.py:677] Setting up checkpoint logger...
I0425 20:44:46.053850 132924756768576 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0425 20:44:46.053894 132924756768576 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0425 20:44:46.054249 132924756768576 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 0x78e47017b5f0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0425 20:44:49.463109 132924756768576 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0425 20:44:49.463350 132924756768576 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 0x78d0087b5010>}, handler_registry=None
I0425 20:44:49.463593 132924756768576 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x78d0087b5010>` 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`.
I0425 20:44:49.463642 132924756768576 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78d00865bd10>` 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`.
I0425 20:44:49.463678 132924756768576 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 0x78d0087b5010>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x78d0087b5010>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78d00865bd10>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78d00865bd10>}).
I0425 20:44:49.463997 132924756768576 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0425 20:44:49.464071 132924756768576 async_checkpointer.py:192] [process=6][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x78cf1827f2e0> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0425 20:44:50.462786 132924756768576 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints
I0425 20:44:50.911763 132924756768576 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_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x78d00865a510>
I0425 20:44:50.911937 132924756768576 checkpointing.py:301] Checkpoint manager created!
I0425 20:44:51.853290 132924756768576 nnx_wrappers.py:453] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0425 20:44:51.853409 132924756768576 nnx_wrappers.py:453] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 20:44:52.233456 132924756768576 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0425 20:44:52.233548 132924756768576 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 20:44:52.250077 132924756768576 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0425 20:44:52.250152 132924756768576 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 20:44:52.273954 132924756768576 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 20:44:52.274023 132924756768576 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 20:44:52.290525 132924756768576 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 20:44:52.290592 132924756768576 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 20:44:52.307128 132924756768576 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 20:44:52.307186 132924756768576 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 20:44:52.331952 132924756768576 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0425 20:44:52.332024 132924756768576 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 20:44:52.353452 132924756768576 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0425 20:44:52.353516 132924756768576 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0425 20:44:52.566144 132924756768576 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0425 20:44:52.566256 132924756768576 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0425 20:44:53.979314 132924756768576 maxtext_utils.py:1668]  params/params/decoder/decoder_norm/scale
    Shape:     float32[2048]
    Logical:   P('norm',)
    Physical:  (None,)
I0425 20:44:53.979444 132924756768576 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)
I0425 20:44:53.979496 132924756768576 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)
I0425 20:44:53.979553 132924756768576 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')
I0425 20:44:53.979604 132924756768576 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)
I0425 20:44:53.979642 132924756768576 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)
I0425 20:44:53.979692 132924756768576 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)
I0425 20:44:53.979741 132924756768576 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')
I0425 20:44:53.979779 132924756768576 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)
I0425 20:44:53.979813 132924756768576 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)
I0425 20:44:53.979859 132924756768576 maxtext_utils.py:1668]  params/params/decoder/logits_dense/kernel
    Shape:     float32[2048,32000]
    Logical:   P('embed_vocab', 'vocab')
    Physical:  ('fsdp', None)

I0425 20:44:53.979904 132924756768576 maxtext_utils.py:1668]  params/params/token_embedder/embedding
    Shape:     float32[32000,2048]
    Logical:   P('vocab', 'embed_vocab')
    Physical:  (None, 'fsdp')
I0425 20:44:54.473649 132924756768576 train.py:155] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0425 20:44:54.473748 132924756768576 train.py:155] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0425 20:44:54.489304 132924756768576 train.py:162] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0425 20:44:54.489365 132924756768576 train.py:162] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0425 20:45:05.475778 132924756768576 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.
I0425 20:45:05.476613 132924756768576 metric_logger.py:301] number parameters: 1.104 billion
I0425 20:45:16.766652 132924756768576 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0425 20:45:17.152992 132924756768576 checkpointing.py:776] Waited 0.38631510734558105 seconds for step 0 to finish before starting checkpointing.
I0425 20:45:17.155455 132924756768576 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 20:45:17.157153 132924756768576 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 0
I0425 20:45:17.158539 132924756768576 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints/0.
I0425 20:45:17.911179 132924756768576 signaling_client.py:364] Using JaxDistributedSignalingClient
I0425 20:45:17.912258 132924756768576 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 20:45:17.912314 132924756768576 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
I0425 20:45:18.185822 132924756768576 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.274736s
I0425 20:45:18.185997 132924756768576 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 5.503 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.28029441833496094 s) (per-host)
I0425 20:45:18.186047 132924756768576 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.280354s (batch_requests_ready=0.002332s, total_serialization_initiated=0.277953s, others=0.000069s)
I0425 20:45:18.186151 132924756768576 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.284514s (all_items=0.000018s, per_item={'items': '0.00001764'}, temp_paths=0.284497)
I0425 20:45:18.186878 132924756768576 event_tracking.py:125] [process=6] [async] Finished blocking save in 1.03 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints/0.
I0425 20:45:18.187218 132797315401472 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 21:05:18.187179
I0425 20:45:18.624265 132924756768576 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 20:45:18.624654 132795743487744 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 20:45:18.624821 132924756768576 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777149917.1554372, 'wait_for_prev_duration_secs': 6.771087646484375e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777149917.1571908, 'checkpointer_blocking_duration_secs': 1.030179738998413, 'get_old_steps_start_time': 1777149918.1873949, 'get_old_steps_duration_secs': 2.9802322387695312e-05, 'checkpoint_manager_blocking_start_time': 1777149917.1535656, 'checkpoint_manager_blocking_duration_secs': 1.4712138175964355}
I0425 20:45:18.624932 132924756768576 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0425 20:45:18.624983 132924756768576 max_utils.py:750] 
Memstats: After params initialized:
I0425 20:45:18.625039 132924756768576 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_24(process=6,(0,6,0,0))
I0425 20:45:18.625071 132924756768576 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_25(process=6,(1,6,0,0))
I0425 20:45:18.625108 132924756768576 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_28(process=6,(0,7,0,0))
I0425 20:45:18.625135 132924756768576 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_29(process=6,(1,7,0,0))
I0425 20:45:18.935762 132924756768576 metric_logger.py:196] completed step: 0, seconds: 11.290, TFLOP/s/device: 1.203, Tokens/s/device: 181.401, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0425 20:45:19.124233 132924756768576 metric_logger.py:196] completed step: 1, seconds: 2.168, TFLOP/s/device: 6.268, Tokens/s/device: 944.844, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0425 20:45:19.531350 132924756768576 metric_logger.py:196] completed step: 2, seconds: 0.041, TFLOP/s/device: 329.138, Tokens/s/device: 49611.201, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129
I0425 20:45:19.678737 132924756768576 metric_logger.py:196] completed step: 3, seconds: 0.408, TFLOP/s/device: 33.340, Tokens/s/device: 5025.335, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.203
I0425 20:45:19.973718 132924756768576 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 88.838, Tokens/s/device: 13390.697, total_weights: 65536, loss: 9.277, lm_loss: 9.277, perplexity: 10694.614
I0425 20:45:19.979850 132924756768576 metric_logger.py:196] completed step: 5, seconds: 0.147, TFLOP/s/device: 92.274, Tokens/s/device: 13908.603, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.717
I0425 20:45:21.519885    2808 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0425 20:45:24.515756 132795751880448 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_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints/0/items/array_metadatas/process_6
I0425 20:45:41.984300 132924756768576 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.964, Tokens/s/device: 6928.164, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.759
I0425 20:45:42.131626 132924756768576 metric_logger.py:196] completed step: 7, seconds: 21.858, TFLOP/s/device: 0.622, Tokens/s/device: 93.696, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4376.905
I0425 20:45:42.278838 132924756768576 metric_logger.py:196] completed step: 8, seconds: 0.152, TFLOP/s/device: 89.157, Tokens/s/device: 13438.761, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3846.406
I0425 20:45:42.425522 132924756768576 checkpointing.py:772] Waiting for step 9 to finish before checkpoint...
I0425 20:45:42.426224 132924756768576 checkpointing.py:776] Waited 0.0007231235504150391 seconds for step 9 to finish before starting checkpointing.
I0425 20:45:42.428339 132924756768576 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 20:45:54.319290 132797315401472 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 43.379 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 36.41354155540466 s) (per-host)
I0425 20:45:54.319415 132797315401472 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.132084s.
I0425 20:46:01.656787 132797315401472 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 43.469441s.
I0425 20:46:01.657081 132795743487744 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 20:46:01.657242 132795743487744 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 20:46:01.657297 132795743487744 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0425 20:46:01.658816 132795743487744 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0425 20:46:01.658996 132924756768576 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.
W0425 20:46:01.659148 132924756768576 checkpoint_manager.py:1452] Waiting for previous save to complete took 19.230809 seconds. If this number is high, consider checkpointing less frequently.
I0425 20:46:01.660900 132924756768576 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 9
I0425 20:46:01.662856 132924756768576 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints/9.
I0425 20:46:01.961688 132924756768576 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 20:46:01.961784 132924756768576 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
I0425 20:46:02.003460 132924756768576 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.042854s
I0425 20:46:02.003615 132924756768576 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 33.137 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.04655194282531738 s) (per-host)
I0425 20:46:02.003662 132924756768576 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.046608s (batch_requests_ready=0.002027s, total_serialization_initiated=0.044518s, others=0.000064s)
I0425 20:46:02.003739 132924756768576 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.050814s (all_items=0.000016s, per_item={'items': '0.00001597'}, temp_paths=0.050798)
I0425 20:46:02.004422 132924756768576 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.34 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints/9.
I0425 20:46:02.004767 132795743487744 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 21:06:02.004731
I0425 20:46:02.006734 132924756768576 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 20:46:02.006992 132795751880448 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 20:46:02.007138 132924756768576 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777149942.4283087, 'wait_for_prev_duration_secs': 19.2308087348938, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777149961.6609383, 'checkpointer_blocking_duration_secs': 0.3439805507659912, 'get_old_steps_start_time': 1777149962.0049434, 'get_old_steps_duration_secs': 3.075599670410156e-05, 'checkpoint_manager_blocking_start_time': 1777149942.4264529, 'checkpoint_manager_blocking_duration_secs': 19.58065128326416}
I0425 20:46:02.007306 132924756768576 checkpointing.py:408] Started an asynchronous checkpoint save for step 9
I0425 20:46:02.007352 132924756768576 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 20:46:07.672950 132774879028992 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_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_10_shardy_false/checkpoints/9/items/array_metadatas/process_6
I0425 20:46:43.017846 132795743487744 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 38.470 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 41.06075406074524 s) (per-host)
I0425 20:46:43.017952 132795743487744 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 41.013069s.
I0425 20:46:50.010920 132795743487744 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 48.005982s.
I0425 20:46:50.011251 132795751880448 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 20:46:50.011379 132795751880448 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 20:46:50.011429 132795751880448 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0425 20:46:50.012616 132795751880448 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0425 20:46:50.012793 132924756768576 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.
I0425 20:46:50.012941 132924756768576 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 20:46:50.013923 132924756768576 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.365, Tokens/s/device: 13922.218, total_weights: 65536, loss: 8.179, lm_loss: 8.179, perplexity: 3564.635
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Sat Apr 25 20:46:58 UTC 2026
EXIT_CODE=0