MaxView

XPK Start: Sat Apr 25 13:13:37 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 13:14:02.435447: 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 13:14:02.647994 138737276741440 max_utils.py:273] Attempting to initialize the jax distributed system...
I0425 13:14:11.688721 138737276741440 distributed.py:149] Starting JAX distributed service on [::]:8482
I0425 13:14:11.694117 138737276741440 distributed.py:172] Connecting to JAX distributed service on mt-15-ocdbt-false-sv-i6lf3-slice-job-0-0.mt-15-ocdbt-false-sv-i6lf3:8482
I0425 13:14:12.902539 138737276741440 max_utils.py:284] Jax distributed system initialized!
I0425 13:14:18.815157 138737276741440 max_utils.py:800] System Information: Jax Version: 0.9.2
I0425 13:14:18.815264 138737276741440 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0425 13:14:18.815306 138737276741440 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 13:14:18.815343 138737276741440 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0425 13:14:19.520930 138737276741440 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0425 13:14:19.521543 138737276741440 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0425 13:14:19.521728 138737276741440 checkpointing.py:688] Setting up checkpoint logger...
I0425 13:14:19.521780 138737276741440 checkpointing.py:234] Creating checkpoint manager with ocdbt=False and zarr3=True
I0425 13:14:19.521823 138737276741440 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0425 13:14:19.522173 138737276741440 base_pytree_checkpoint_handler.py:441] Created BasePyTreeCheckpointHandler: use_ocdbt=False, use_zarr3=True, pytree_metadata_options=PyTreeMetadataOptions(support_rich_types=False), array_metadata_store=<orbax.checkpoint._src.metadata.array_metadata_store.Store object at 0x7e2db39144d0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0425 13:14:22.451428 138737276741440 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0425 13:14:22.451665 138737276741440 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 0x7e1a640ddfd0>}, handler_registry=None
I0425 13:14:22.451907 138737276741440 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e1a640ddfd0>` 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 13:14:22.451957 138737276741440 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e1a2c3af2c0>` 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 13:14:22.451993 138737276741440 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 0x7e1a640ddfd0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e1a640ddfd0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e1a2c3af2c0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e1a2c3af2c0>}).
I0425 13:14:22.452339 138737276741440 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0425 13:14:22.452411 138737276741440 async_checkpointer.py:192] [process=6][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7e1a2c37de40> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0425 13:14:24.109220 138737276741440 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints
I0425 13:14:24.111525 138737276741440 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=5), 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_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7e1a2c3aacc0>
I0425 13:14:24.111639 138737276741440 checkpointing.py:302] Checkpoint manager created!
I0425 13:14:25.061048 138737276741440 nnx_wrappers.py:437] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0425 13:14:25.061187 138737276741440 nnx_wrappers.py:437] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 13:14:25.443875 138737276741440 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn').
I0425 13:14:25.443973 138737276741440 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 13:14:25.460458 138737276741440 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn').
I0425 13:14:25.460521 138737276741440 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 13:14:25.484542 138737276741440 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_length_attn', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 13:14:25.484609 138737276741440 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 13:14:25.501194 138737276741440 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_length_attn', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 13:14:25.501264 138737276741440 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 13:14:25.517747 138737276741440 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_length_attn', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 13:14:25.517811 138737276741440 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 13:14:25.542664 138737276741440 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch_attn', 'activation_length_attn', 'activation_heads', 'activation_kv').
I0425 13:14:25.542736 138737276741440 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 13:14:25.563675 138737276741440 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0425 13:14:25.563741 138737276741440 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0425 13:14:25.785574 138737276741440 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0425 13:14:25.785682 138737276741440 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0425 13:14:27.234627 138737276741440 maxtext_utils.py:1880]  params/params/decoder/decoder_norm/scale
    Shape:     float32[2048]
    Logical:   P('norm',)
    Physical:  (None,)
I0425 13:14:27.234755 138737276741440 maxtext_utils.py:1880]  params/params/decoder/layers/mlp/wi_0/kernel
    Shape:     float32[2048,16,7168]
    Logical:   P('embed', 'layers', 'mlp')
    Physical:  ('fsdp', None, None)
I0425 13:14:27.234810 138737276741440 maxtext_utils.py:1880]  params/params/decoder/layers/mlp/wi_1/kernel
    Shape:     float32[2048,16,7168]
    Logical:   P('embed', 'layers', 'mlp')
    Physical:  ('fsdp', None, None)
I0425 13:14:27.234867 138737276741440 maxtext_utils.py:1880]  params/params/decoder/layers/mlp/wo/kernel
    Shape:     float32[7168,16,2048]
    Logical:   P('mlp', 'layers', 'embed')
    Physical:  (None, None, 'fsdp')
I0425 13:14:27.234923 138737276741440 maxtext_utils.py:1880]  params/params/decoder/layers/post_self_attention_layer_norm/scale
    Shape:     float32[2048,16]
    Logical:   P('norm', 'layers')
    Physical:  (None, None)
I0425 13:14:27.234965 138737276741440 maxtext_utils.py:1880]  params/params/decoder/layers/pre_self_attention_layer_norm/scale
    Shape:     float32[2048,16]
    Logical:   P('norm', 'layers')
    Physical:  (None, None)
I0425 13:14:27.235019 138737276741440 maxtext_utils.py:1880]  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 13:14:27.235073 138737276741440 maxtext_utils.py:1880]  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 13:14:27.235126 138737276741440 maxtext_utils.py:1880]  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 13:14:27.235165 138737276741440 maxtext_utils.py:1880]  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 13:14:27.235214 138737276741440 maxtext_utils.py:1880]  params/params/decoder/logits_dense/kernel
    Shape:     float32[2048,32000]
    Logical:   P('embed_vocab', 'vocab')
    Physical:  ('fsdp', None)
I0425 13:14:27.235266 138737276741440 maxtext_utils.py:1880]  params/params/token_embedder/embedding
    Shape:     float32[32000,2048]
    Logical:   P('vocab', 'embed_vocab')
    Physical:  (None, 'fsdp')

I0425 13:14:27.737229 138737276741440 train.py:157] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0425 13:14:27.737331 138737276741440 train.py:157] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0425 13:14:27.752833 138737276741440 train.py:164] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0425 13:14:27.752892 138737276741440 train.py:164] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0425 13:14:38.906746 138737276741440 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 13:14:38.907598 138737276741440 metric_logger.py:301] number parameters: 1.104 billion
I0425 13:14:50.377060 138737276741440 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0425 13:14:50.530886 138737276741440 checkpointing.py:798] Waited 0.15381073951721191 seconds for step 0 to finish before starting checkpointing.
I0425 13:14:50.533378 138737276741440 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 13:14:50.535158 138737276741440 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 0
I0425 13:14:50.537201 138737276741440 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints/0.
I0425 13:14:51.279805 138737276741440 signaling_client.py:364] Using JaxDistributedSignalingClient
I0425 13:14:51.280946 138737276741440 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 13:14:51.281006 138737276741440 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 13:14:51.558539 138737276741440 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.278813s
I0425 13:14:51.558721 138737276741440 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 2.190 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.7044885158538818 s) (per-host)
I0425 13:14:51.558778 138737276741440 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.704555s (batch_requests_ready=0.422420s, total_serialization_initiated=0.282059s, others=0.000076s)
I0425 13:14:51.558871 138737276741440 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.709036s (all_items=0.000048s, per_item={'items': '0.00004792'}, temp_paths=0.708988)
I0425 13:14:51.559729 138737276741440 event_tracking.py:125] [process=6] [async] Finished blocking save in 1.02 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints/0.
I0425 13:14:51.560074 138611744921344 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 13:34:51.560037
I0425 13:14:51.567649 138737276741440 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 13:14:51.567965 138610091214592 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 13:14:51.568136 138737276741440 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777122890.5333598, 'wait_for_prev_duration_secs': 6.29425048828125e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777122890.5351956, 'checkpointer_blocking_duration_secs': 1.0250425338745117, 'get_old_steps_start_time': 1777122891.5602667, 'get_old_steps_duration_secs': 3.719329833984375e-05, 'checkpoint_manager_blocking_start_time': 1777122890.5313902, 'checkpoint_manager_blocking_duration_secs': 1.036694049835205}
I0425 13:14:51.568246 138737276741440 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0425 13:14:51.568302 138737276741440 max_utils.py:750] 
Memstats: After params initialized:
I0425 13:14:51.568352 138737276741440 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_24(process=6,(0,6,0,0))
I0425 13:14:51.568386 138737276741440 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_25(process=6,(1,6,0,0))
I0425 13:14:51.568415 138737276741440 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_28(process=6,(0,7,0,0))
I0425 13:14:51.568440 138737276741440 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_29(process=6,(1,7,0,0))
I0425 13:14:51.881191 138737276741440 metric_logger.py:196] completed step: 0, seconds: 11.469, TFLOP/s/device: 1.185, Tokens/s/device: 178.563, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0425 13:14:52.063807 138737276741440 metric_logger.py:196] completed step: 1, seconds: 1.503, TFLOP/s/device: 9.042, Tokens/s/device: 1362.974, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0425 13:14:52.488410 138737276741440 metric_logger.py:196] completed step: 2, seconds: 0.035, TFLOP/s/device: 384.665, Tokens/s/device: 57980.862, total_weights: 65536, loss: 10.560, lm_loss: 10.560, perplexity: 38547.719
I0425 13:14:52.635706 138737276741440 metric_logger.py:196] completed step: 3, seconds: 0.425, TFLOP/s/device: 31.969, Tokens/s/device: 4818.755, total_weights: 65536, loss: 9.980, lm_loss: 9.980, perplexity: 21590.506
I0425 13:14:52.640249 138737276741440 checkpointing.py:794] Waiting for step 5 to finish before checkpoint...
I0425 13:14:52.929895 138737276741440 checkpointing.py:798] Waited 0.2896106243133545 seconds for step 5 to finish before starting checkpointing.
I0425 13:14:52.933027 138737276741440 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 13:14:54.056571    2757 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0425 13:14:56.200458 138610099607296 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints/0/items/array_metadatas/process_6
I0425 13:15:01.337502 138611744921344 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 150.678 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 10.483237266540527 s) (per-host)
I0425 13:15:01.337613 138611744921344 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 9.777416s.
I0425 13:15:07.933146 138611744921344 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 16.372934s.
I0425 13:15:07.933433 138610091214592 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 13:15:07.933567 138610091214592 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 13:15:07.933618 138610091214592 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0425 13:15:07.935198 138610091214592 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0425 13:15:07.935466 138737276741440 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 13:15:07.935603 138737276741440 checkpoint_manager.py:1452] Waiting for previous save to complete took 15.002577 seconds. If this number is high, consider checkpointing less frequently.
I0425 13:15:07.937584 138737276741440 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 5
I0425 13:15:07.940114 138737276741440 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints/5.
I0425 13:15:08.221750 138737276741440 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 13:15:08.221847 138737276741440 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 13:15:08.257265 138737276741440 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.036662s
I0425 13:15:08.257422 138737276741440 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 38.377 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.04019570350646973 s) (per-host)
I0425 13:15:08.257474 138737276741440 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.040258s (batch_requests_ready=0.001879s, total_serialization_initiated=0.038309s, others=0.000070s)
I0425 13:15:08.257563 138737276741440 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.045246s (all_items=0.000016s, per_item={'items': '0.00001621'}, temp_paths=0.045230)
I0425 13:15:08.258283 138737276741440 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.32 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints/5.
I0425 13:15:08.258582 138610091214592 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 13:35:08.258549
I0425 13:15:08.266172 138737276741440 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=5] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 13:15:08.266448 138611728135936 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 13:15:08.266615 138737276741440 standard_logger.py:34] {'step': 5, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777122892.9329948, 'wait_for_prev_duration_secs': 15.00257682800293, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777122907.9376237, 'checkpointer_blocking_duration_secs': 0.3210937976837158, 'get_old_steps_start_time': 1777122908.2587395, 'get_old_steps_duration_secs': 3.123283386230469e-05, 'checkpoint_manager_blocking_start_time': 1777122892.930534, 'checkpoint_manager_blocking_duration_secs': 15.336041450500488}
I0425 13:15:08.266726 138737276741440 checkpointing.py:409] Started an asynchronous checkpoint save for step 5
I0425 13:15:08.267580 138737276741440 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 88.758, Tokens/s/device: 13378.626, total_weights: 65536, loss: 9.460, lm_loss: 9.460, perplexity: 12840.355
I0425 13:15:08.273395 138737276741440 metric_logger.py:196] completed step: 5, seconds: 0.147, TFLOP/s/device: 92.379, Tokens/s/device: 13924.300, total_weights: 65536, loss: 8.959, lm_loss: 8.959, perplexity: 7776.467
I0425 13:15:13.310748 138610099607296 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints/5/items/array_metadatas/process_6
I0425 13:15:18.605246 138610091214592 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 152.060 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 10.387979745864868 s) (per-host)
I0425 13:15:18.605383 138610091214592 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 10.346692s.
I0425 13:15:24.048469 138610091214592 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 15.789762s.
I0425 13:15:24.048762 138611728135936 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 13:15:24.048882 138611728135936 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 13:15:24.048931 138611728135936 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=5] CheckpointManager Save Finalize is syncing with other hosts...
I0425 13:15:24.050504 138611728135936 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=5] CheckpointManager Save Finalize is done on all hosts.
I0425 13:15:30.595153 138737276741440 metric_logger.py:196] completed step: 6, seconds: 15.632, TFLOP/s/device: 0.869, Tokens/s/device: 131.016, total_weights: 65536, loss: 8.469, lm_loss: 8.469, perplexity: 4762.740
I0425 13:15:30.742929 138737276741440 metric_logger.py:196] completed step: 7, seconds: 22.176, TFLOP/s/device: 0.613, Tokens/s/device: 92.353, total_weights: 65536, loss: 8.003, lm_loss: 8.003, perplexity: 2989.151
I0425 13:15:30.890209 138737276741440 metric_logger.py:196] completed step: 8, seconds: 0.152, TFLOP/s/device: 89.391, Tokens/s/device: 13473.950, total_weights: 65536, loss: 7.572, lm_loss: 7.572, perplexity: 1943.098
I0425 13:15:31.037065 138737276741440 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0425 13:15:31.037735 138737276741440 checkpointing.py:798] Waited 0.0006897449493408203 seconds for step 9 to finish before starting checkpointing.
I0425 13:15:31.039970 138737276741440 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 13:15:31.042831 138737276741440 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 9
I0425 13:15:31.044180 138737276741440 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints/9.
I0425 13:15:31.348066 138737276741440 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 13:15:31.348174 138737276741440 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 13:15:31.383061 138737276741440 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.036091s
I0425 13:15:31.383218 138737276741440 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 38.965 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.03958868980407715 s) (per-host)
I0425 13:15:31.383267 138737276741440 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.039647s (batch_requests_ready=0.001867s, total_serialization_initiated=0.037717s, others=0.000064s)
I0425 13:15:31.383362 138737276741440 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.043672s (all_items=0.000011s, per_item={'items': '0.00001121'}, temp_paths=0.043661)
I0425 13:15:31.384037 138737276741440 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.34 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints/9.
I0425 13:15:31.384324 138605661050624 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 13:35:31.384292
I0425 13:15:31.386385 138737276741440 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 13:15:31.386639 138605669443328 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 13:15:31.386743 138737276741440 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777122931.0399394, 'wait_for_prev_duration_secs': 7.462501525878906e-05, 'time_between_consecutive_saves_sec': 6.989393472671509, 'checkpointer_blocking_start_time': 1777122931.0428712, 'checkpointer_blocking_duration_secs': 0.34160447120666504, 'get_old_steps_start_time': 1777122931.3844993, 'get_old_steps_duration_secs': 2.6702880859375e-05, 'checkpoint_manager_blocking_start_time': 1777122931.0379589, 'checkpoint_manager_blocking_duration_secs': 0.3487508296966553}
I0425 13:15:31.386925 138737276741440 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0425 13:15:31.386975 138737276741440 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 13:15:36.500219 138584115877632 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_15_ocdbt_false/checkpoints/9/items/array_metadatas/process_6
I0425 13:15:41.899813 138605661050624 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 149.638 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 10.556148290634155 s) (per-host)
I0425 13:15:41.899925 138605661050624 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 10.515486s.
I0425 13:15:46.919816 138605661050624 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 15.535357s.
I0425 13:15:46.920033 138605669443328 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 13:15:46.920122 138605669443328 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 13:15:46.920169 138605669443328 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0425 13:15:46.922770 138605669443328 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0425 13:15:46.922965 138737276741440 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 13:15:46.923137 138737276741440 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 13:15:46.924076 138737276741440 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.139, Tokens/s/device: 13888.135, total_weights: 65536, loss: 7.181, lm_loss: 7.181, perplexity: 1314.495
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Sat Apr 25 13:15:57 UTC 2026
EXIT_CODE=0