MaxView

XPK Start: Sat Apr 25 09:35:58 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 09:36:23.415062: 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 09:36:23.625823 140112932730688 max_utils.py:273] Attempting to initialize the jax distributed system...
I0425 09:36:32.667994 140112932730688 distributed.py:149] Starting JAX distributed service on [::]:8482
I0425 09:36:32.670371 140112932730688 distributed.py:172] Connecting to JAX distributed service on mt-07-eval-juadd-slice-job-0-0.mt-07-eval-juadd:8482
I0425 09:36:34.384273 140112932730688 max_utils.py:284] Jax distributed system initialized!
I0425 09:36:40.551424 140112932730688 max_utils.py:800] System Information: Jax Version: 0.9.2
I0425 09:36:40.551533 140112932730688 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0425 09:36:40.551574 140112932730688 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 09:36:40.551611 140112932730688 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0425 09:36:41.256629 140112932730688 maxtext_utils.py:1732] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0425 09:36:41.257243 140112932730688 maxtext_utils.py:1732] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0425 09:36:41.257421 140112932730688 checkpointing.py:688] Setting up checkpoint logger...
I0425 09:36:41.257470 140112932730688 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0425 09:36:41.257515 140112932730688 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0425 09:36:41.257867 140112932730688 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 0x7f6dfcb1d190>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0425 09:36:44.057209 140112932730688 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0425 09:36:44.057451 140112932730688 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 0x7f59f4101af0>}, handler_registry=None
I0425 09:36:44.057704 140112932730688 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f59f4101af0>` 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 09:36:44.057769 140112932730688 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f59f4109c40>` 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 09:36:44.057817 140112932730688 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 0x7f59f4101af0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f59f4101af0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f59f4109c40>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f59f4109c40>}).
I0425 09:36:44.058144 140112932730688 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0425 09:36:44.058214 140112932730688 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7f59b4489d00> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0425 09:36:45.220779 140112932730688 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints
I0425 09:36:45.223026 140112932730688 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/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7f59f431e6f0>
I0425 09:36:45.223138 140112932730688 checkpointing.py:302] Checkpoint manager created!
I0425 09:36:46.156796 140112932730688 nnx_wrappers.py:437] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0425 09:36:46.156899 140112932730688 nnx_wrappers.py:437] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 09:36:46.547806 140112932730688 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0425 09:36:46.547918 140112932730688 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 09:36:46.567222 140112932730688 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0425 09:36:46.567283 140112932730688 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 09:36:46.591285 140112932730688 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 09:36:46.591354 140112932730688 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 09:36:46.607946 140112932730688 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 09:36:46.608125 140112932730688 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 09:36:46.629268 140112932730688 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 09:36:46.629346 140112932730688 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 09:36:46.654635 140112932730688 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0425 09:36:46.654713 140112932730688 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 09:36:46.675603 140112932730688 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0425 09:36:46.675676 140112932730688 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0425 09:36:46.893058 140112932730688 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0425 09:36:46.893164 140112932730688 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0425 09:36:48.315773 140112932730688 maxtext_utils.py:1835]  params/params/decoder/decoder_norm/scale
    Shape:     float32[2048]
    Logical:   P('norm',)
    Physical:  (None,)
I0425 09:36:48.315913 140112932730688 maxtext_utils.py:1835]  params/params/decoder/layers/mlp/wi_0/kernel
    Shape:     float32[2048,16,7168]
    Logical:   P('embed', 'layers', 'mlp')
    Physical:  ('fsdp', None, None)
I0425 09:36:48.315969 140112932730688 maxtext_utils.py:1835]  params/params/decoder/layers/mlp/wi_1/kernel
    Shape:     float32[2048,16,7168]
    Logical:   P('embed', 'layers', 'mlp')
    Physical:  ('fsdp', None, None)
I0425 09:36:48.316031 140112932730688 maxtext_utils.py:1835]  params/params/decoder/layers/mlp/wo/kernel
    Shape:     float32[7168,16,2048]
    Logical:   P('mlp', 'layers', 'embed')
    Physical:  (None, None, 'fsdp')
I0425 09:36:48.316085 140112932730688 maxtext_utils.py:1835]  params/params/decoder/layers/post_self_attention_layer_norm/scale
    Shape:     float32[2048,16]
    Logical:   P('norm', 'layers')
    Physical:  (None, None)
I0425 09:36:48.316124 140112932730688 maxtext_utils.py:1835]  params/params/decoder/layers/pre_self_attention_layer_norm/scale
    Shape:     float32[2048,16]
    Logical:   P('norm', 'layers')
    Physical:  (None, None)
I0425 09:36:48.316181 140112932730688 maxtext_utils.py:1835]  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 09:36:48.316236 140112932730688 maxtext_utils.py:1835]  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 09:36:48.316276 140112932730688 maxtext_utils.py:1835]  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 09:36:48.316312 140112932730688 maxtext_utils.py:1835]  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 09:36:48.316360 140112932730688 maxtext_utils.py:1835]  params/params/decoder/logits_dense/kernel
    Shape:     float32[2048,32000]
    Logical:   P('embed_vocab', 'vocab')
    Physical:  ('fsdp', None)
I0425 09:36:48.316410 140112932730688 maxtext_utils.py:1835]  params/params/token_embedder/embedding

    Shape:     float32[32000,2048]
    Logical:   P('vocab', 'embed_vocab')
    Physical:  (None, 'fsdp')
I0425 09:36:48.820422 140112932730688 train.py:157] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0425 09:36:48.820522 140112932730688 train.py:157] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0425 09:36:48.836381 140112932730688 train.py:164] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0425 09:36:48.836438 140112932730688 train.py:164] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0425 09:36:59.650389 140112932730688 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 09:36:59.651251 140112932730688 metric_logger.py:301] number parameters: 1.104 billion
I0425 09:37:10.989917 140112932730688 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0425 09:37:11.198453 140112932730688 checkpointing.py:798] Waited 0.20851564407348633 seconds for step 0 to finish before starting checkpointing.
I0425 09:37:11.201060 140112932730688 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 09:37:11.202699 140112932730688 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0425 09:37:11.204059 140112932730688 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints/0.
I0425 09:37:11.486350 140112932730688 signaling_client.py:364] Using JaxDistributedSignalingClient
I0425 09:37:11.487364 140112932730688 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 09:37:11.487420 140112932730688 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 09:37:11.764559 140112932730688 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.278282s
I0425 09:37:11.764739 140112932730688 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.434 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.2838711738586426 s) (per-host)
I0425 09:37:11.764794 140112932730688 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.283937s (batch_requests_ready=0.002440s, total_serialization_initiated=0.281422s, others=0.000075s)
I0425 09:37:11.764887 140112932730688 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.288042s (all_items=0.000017s, per_item={'items': '0.00001693'}, temp_paths=0.288025)
I0425 09:37:11.765757 140112932730688 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.56 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints/0.
I0425 09:37:11.766058 139984862443264 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 09:57:11.766024
I0425 09:37:11.770393 140112932730688 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 09:37:11.770625 139983740585728 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0425 09:37:11.770759 140112932730688 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777109831.201043, 'wait_for_prev_duration_secs': 5.793571472167969e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777109831.2027361, 'checkpointer_blocking_duration_secs': 0.5634925365447998, 'get_old_steps_start_time': 1777109831.7662563, 'get_old_steps_duration_secs': 3.457069396972656e-05, 'checkpoint_manager_blocking_start_time': 1777109831.1990063, 'checkpoint_manager_blocking_duration_secs': 0.5717153549194336}
I0425 09:37:11.770862 140112932730688 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0425 09:37:11.770912 140112932730688 max_utils.py:750] 
Memstats: After params initialized:
I0425 09:37:11.770967 140112932730688 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_18(process=5,(2,4,0,0))
I0425 09:37:11.771001 140112932730688 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_19(process=5,(3,4,0,0))
I0425 09:37:11.771031 140112932730688 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_22(process=5,(2,5,0,0))
I0425 09:37:11.771056 140112932730688 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_23(process=5,(3,5,0,0))
I0425 09:37:12.087062 140112932730688 metric_logger.py:196] completed step: 0, seconds: 11.339, TFLOP/s/device: 1.198, Tokens/s/device: 180.623, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0425 09:37:12.270419 140112932730688 metric_logger.py:196] completed step: 1, seconds: 1.096, TFLOP/s/device: 12.401, Tokens/s/device: 1869.184, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0425 09:37:12.676286 140112932730688 metric_logger.py:196] completed step: 2, seconds: 0.036, TFLOP/s/device: 375.896, Tokens/s/device: 56659.105, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129
I0425 09:37:12.823747 140112932730688 metric_logger.py:196] completed step: 3, seconds: 0.406, TFLOP/s/device: 33.463, Tokens/s/device: 5043.875, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.203
I0425 09:37:13.118643 140112932730688 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 88.921, Tokens/s/device: 13403.141, total_weights: 65536, loss: 9.277, lm_loss: 9.277, perplexity: 10694.614
I0425 09:37:13.124309 140112932730688 metric_logger.py:196] completed step: 5, seconds: 0.147, TFLOP/s/device: 92.207, Tokens/s/device: 13898.503, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.717
I0425 09:37:14.930688    2784 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0425 09:37:17.140075 139983748978432 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints/0/items/array_metadatas/process_5
I0425 09:37:34.923534 140112932730688 metric_logger.py:196] completed step: 6, seconds: 0.295, TFLOP/s/device: 45.991, Tokens/s/device: 6932.268, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.759
I0425 09:37:35.070838 140112932730688 metric_logger.py:196] completed step: 7, seconds: 21.653, TFLOP/s/device: 0.628, Tokens/s/device: 94.585, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4376.905
I0425 09:37:35.218223 140112932730688 metric_logger.py:196] completed step: 8, seconds: 0.152, TFLOP/s/device: 89.390, Tokens/s/device: 13473.861, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3846.406
I0425 09:37:35.364905 140112932730688 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0425 09:37:35.365553 140112932730688 checkpointing.py:798] Waited 0.0006704330444335938 seconds for step 9 to finish before starting checkpointing.
I0425 09:37:35.367584 140112932730688 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 09:37:48.956449 139984862443264 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 42.150 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 37.47555708885193 s) (per-host)
I0425 09:37:48.956556 139984862443264 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 37.190386s.
I0425 09:37:57.076268 139984862443264 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 45.310070s.
I0425 09:37:57.076499 139983740585728 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 09:37:57.076569 139983740585728 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0425 09:37:57.076631 139983740585728 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0425 09:37:57.079504 139983740585728 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0425 09:37:57.079699 140112932730688 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.
W0425 09:37:57.079837 140112932730688 checkpoint_manager.py:1452] Waiting for previous save to complete took 21.712254 seconds. If this number is high, consider checkpointing less frequently.
I0425 09:37:57.081615 140112932730688 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0425 09:37:57.083752 140112932730688 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints/9.
I0425 09:37:57.363362 140112932730688 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 09:37:57.363452 140112932730688 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 09:37:57.397311 140112932730688 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.034811s
I0425 09:37:57.397438 140112932730688 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 40.266 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.038309574127197266 s) (per-host)
I0425 09:37:57.397484 140112932730688 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.038364s (batch_requests_ready=0.001798s, total_serialization_initiated=0.036505s, others=0.000060s)
I0425 09:37:57.397561 140112932730688 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.042484s (all_items=0.000015s, per_item={'items': '0.00001478'}, temp_paths=0.042469)
I0425 09:37:57.398243 140112932730688 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.32 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints/9.
I0425 09:37:57.398585 139983740585728 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 09:57:57.398547
I0425 09:37:57.404633 140112932730688 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 09:37:57.404895 139962129291008 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0425 09:37:57.405029 140112932730688 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777109855.367554, 'wait_for_prev_duration_secs': 21.7122540473938, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777109877.0816746, 'checkpointer_blocking_duration_secs': 0.31702136993408203, 'get_old_steps_start_time': 1777109877.3987195, 'get_old_steps_duration_secs': 3.2901763916015625e-05, 'checkpoint_manager_blocking_start_time': 1777109855.365788, 'checkpoint_manager_blocking_duration_secs': 22.03920340538025}
I0425 09:37:57.405138 140112932730688 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0425 09:37:57.405187 140112932730688 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 09:38:02.436320 139983748978432 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/linen_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_07_eval/checkpoints/9/items/array_metadatas/process_5
I0425 09:38:39.836197 139983740585728 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 37.187 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 42.47702646255493 s) (per-host)
I0425 09:38:39.836323 139983740585728 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 42.437092s.
I0425 09:38:47.556561 139983740585728 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 50.157314s.
I0425 09:38:47.556868 139962129291008 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 09:38:47.556989 139962129291008 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0425 09:38:47.557045 139962129291008 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0425 09:38:47.559748 139962129291008 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0425 09:38:47.559928 140112932730688 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.
I0425 09:38:47.560073 140112932730688 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 09:38:47.561086 140112932730688 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.291, Tokens/s/device: 13911.059, 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 09:38:58 UTC 2026
EXIT_CODE=0