MaxView

XPK Start: Thu Apr 23 13:19:22 UTC 2026
PyTorch was not found. Models won't be available and only tokenizers, configuration and file/data utilities can be used.
`rope_parameters`'s factor field must be a float >= 1, got 40
`rope_parameters`'s beta_fast field must be a float, got 32
`rope_parameters`'s beta_slow field must be a float, got 1
DeepseekV32Config got `key=rope_scaling` in kwargs but hasn't set it as attribute. For RoPE standardization you need to set `self.rope_parameters` in model's config. 
2026-04-23 13:19:47.574216: E external/local_xla/xla/stream_executor/cuda/cuda_platform.cc:51] failed call to cuInit: INTERNAL: CUDA error: Failed call to cuInit: UNKNOWN ERROR (303)
I0423 13:19:47.783144 133486912243520 max_utils.py:273] Attempting to initialize the jax distributed system...
I0423 13:19:56.823776 133486912243520 distributed.py:149] Starting JAX distributed service on [::]:8482
I0423 13:19:56.826057 133486912243520 distributed.py:172] Connecting to JAX distributed service on mt-10-shardy-true-fzpad-slice-job-0-0.mt-10-shardy-true-fzpad:8482
I0423 13:19:58.047644 133486912243520 max_utils.py:284] Jax distributed system initialized!
I0423 13:20:04.400679 133486912243520 max_utils.py:800] System Information: Jax Version: 0.9.2
I0423 13:20:04.400782 133486912243520 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0423 13:20:04.400824 133486912243520 max_utils.py:802] System Information: Jax Backend: PJRT C API
TFRT TPU v6 lite
Built on Mar 4 2026 11:32:08 (1772652728) cl/878335365
I0423 13:20:04.400860 133486912243520 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0423 13:20:05.098310 133486912243520 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0423 13:20:05.098910 133486912243520 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0423 13:20:05.099095 133486912243520 checkpointing.py:688] Setting up checkpoint logger...
I0423 13:20:05.099144 133486912243520 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0423 13:20:05.099193 133486912243520 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0423 13:20:05.099526 133486912243520 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 0x796739f18e00>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0423 13:20:08.086976 133486912243520 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0423 13:20:08.087296 133486912243520 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 0x7952c01fa480>}, handler_registry=None
I0423 13:20:08.087575 133486912243520 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7952c01fa480>` for item "items" and save args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>` to `_handler_registry`.
I0423 13:20:08.087641 133486912243520 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7952c01fc4d0>` for item "metrics" and save args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>` to `_handler_registry`.
I0423 13:20:08.087703 133486912243520 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 0x7952c01fa480>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7952c01fa480>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7952c01fc4d0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7952c01fc4d0>}).
I0423 13:20:08.088120 133486912243520 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0423 13:20:08.088212 133486912243520 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7952a85cdd00> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0423 13:20:08.998698 133486912243520 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints
I0423 13:20:09.001278 133486912243520 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_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7952c01fbbc0>
I0423 13:20:09.001390 133486912243520 checkpointing.py:302] Checkpoint manager created!
I0423 13:20:09.942849 133486912243520 nnx_wrappers.py:437] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0423 13:20:09.942959 133486912243520 nnx_wrappers.py:437] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 13:20:10.326596 133486912243520 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0423 13:20:10.326702 133486912243520 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 13:20:10.343191 133486912243520 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0423 13:20:10.343253 133486912243520 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 13:20:10.367173 133486912243520 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0423 13:20:10.367240 133486912243520 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 13:20:10.383882 133486912243520 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0423 13:20:10.383952 133486912243520 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 13:20:10.400403 133486912243520 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0423 13:20:10.400467 133486912243520 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 13:20:10.425318 133486912243520 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0423 13:20:10.425389 133486912243520 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 13:20:10.446322 133486912243520 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0423 13:20:10.446386 133486912243520 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0423 13:20:10.665229 133486912243520 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0423 13:20:10.665341 133486912243520 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0423 13:20:12.086530 133486912243520 maxtext_utils.py:1880]  params/params/decoder/decoder_norm/scale
    Shape:     float32[2048]
    Logical:   P('norm',)
    Physical:  (None,)
I0423 13:20:12.086676 133486912243520 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)
I0423 13:20:12.086732 133486912243520 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)
I0423 13:20:12.086789 133486912243520 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')
I0423 13:20:12.086844 133486912243520 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)
I0423 13:20:12.086883 133486912243520 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)
I0423 13:20:12.086935 133486912243520 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)
I0423 13:20:12.086986 133486912243520 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')
I0423 13:20:12.087025 133486912243520 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)
I0423 13:20:12.087061 133486912243520 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)
I0423 13:20:12.087107 133486912243520 maxtext_utils.py:1880]  params/params/decoder/logits_dense/kernel
    Shape:     float32[2048,32000]
    Logical:   P('embed_vocab', 'vocab')
    Physical:  ('fsdp', None)

I0423 13:20:12.087157 133486912243520 maxtext_utils.py:1880]  params/params/token_embedder/embedding
    Shape:     float32[32000,2048]
    Logical:   P('vocab', 'embed_vocab')
    Physical:  (None, 'fsdp')
I0423 13:20:12.584182 133486912243520 train.py:157] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0423 13:20:12.584284 133486912243520 train.py:157] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0423 13:20:12.599879 133486912243520 train.py:164] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0423 13:20:12.599941 133486912243520 train.py:164] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0423 13:20:23.223404 133486912243520 max_utils.py:791] Total memory size: 1.5 GB, Output size: 0.4 GB, Temp size: 1.1 GB, Argument size: 0.4 GB, Host temp size: 0.0 GB.
I0423 13:20:23.224229 133486912243520 metric_logger.py:301] number parameters: 1.104 billion
I0423 13:20:34.536439 133486912243520 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0423 13:20:34.870174 133486912243520 checkpointing.py:798] Waited 0.33371472358703613 seconds for step 0 to finish before starting checkpointing.
I0423 13:20:34.872552 133486912243520 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0423 13:20:34.874280 133486912243520 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0423 13:20:34.875646 133486912243520 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints/0.
I0423 13:20:35.473123 133486912243520 signaling_client.py:364] Using JaxDistributedSignalingClient
I0423 13:20:35.474045 133486912243520 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0423 13:20:35.474102 133486912243520 replica_slices.py:424] Transferring arrays to host memory with options: use_replica_parallel=True, min_slice_bytes_for_replica_parallel=None, max_replicas_for_replica_parallel=None, enable_pinned_host_transfer=False
I0423 13:20:35.744595 133486912243520 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.271545s
I0423 13:20:35.744767 133486912243520 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.564 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.2772207260131836 s) (per-host)
I0423 13:20:35.744820 133486912243520 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.277283s (batch_requests_ready=0.002309s, total_serialization_initiated=0.274904s, others=0.000070s)
I0423 13:20:35.744919 133486912243520 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.281307s (all_items=0.000019s, per_item={'items': '0.00001907'}, temp_paths=0.281288)
I0423 13:20:35.745762 133486912243520 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.87 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints/0.
I0423 13:20:35.746045 133356855490304 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-23 13:40:35.746021
I0423 13:20:35.757353 133486912243520 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0423 13:20:35.757645 133355728336640 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0423 13:20:35.757810 133486912243520 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776950434.8725343, 'wait_for_prev_duration_secs': 6.0558319091796875e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776950434.8743196, 'checkpointer_blocking_duration_secs': 0.871842622756958, 'get_old_steps_start_time': 1776950435.7461898, 'get_old_steps_duration_secs': 3.170967102050781e-05, 'checkpoint_manager_blocking_start_time': 1776950434.8706896, 'checkpoint_manager_blocking_duration_secs': 0.8870818614959717}
I0423 13:20:35.757916 133486912243520 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0423 13:20:35.757971 133486912243520 max_utils.py:750] 
Memstats: After params initialized:
I0423 13:20:35.758023 133486912243520 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_18(process=5,(2,4,0,0))
I0423 13:20:35.758056 133486912243520 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_19(process=5,(3,4,0,0))
I0423 13:20:35.758086 133486912243520 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_22(process=5,(2,5,0,0))
I0423 13:20:35.758112 133486912243520 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_23(process=5,(3,5,0,0))
I0423 13:20:36.082101 133486912243520 metric_logger.py:196] completed step: 0, seconds: 11.312, TFLOP/s/device: 1.201, Tokens/s/device: 181.045, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0423 13:20:36.320842 133486912243520 metric_logger.py:196] completed step: 1, seconds: 1.544, TFLOP/s/device: 8.799, Tokens/s/device: 1326.291, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0423 13:20:36.754012 133486912243520 metric_logger.py:196] completed step: 2, seconds: 0.092, TFLOP/s/device: 148.072, Tokens/s/device: 22319.093, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129
I0423 13:20:36.901304 133486912243520 metric_logger.py:196] completed step: 3, seconds: 0.433, TFLOP/s/device: 31.351, Tokens/s/device: 4725.601, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.203
I0423 13:20:37.196410 133486912243520 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 89.018, Tokens/s/device: 13417.718, total_weights: 65536, loss: 9.277, lm_loss: 9.277, perplexity: 10694.614
I0423 13:20:37.202299 133486912243520 metric_logger.py:196] completed step: 5, seconds: 0.147, TFLOP/s/device: 92.174, Tokens/s/device: 13893.411, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.717
I0423 13:20:43.908290    2841 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0423 13:20:46.370068 133355781748480 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_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints/0/items/array_metadatas/process_5
I0423 13:21:00.006281 133486912243520 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.977, Tokens/s/device: 6930.180, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.759
I0423 13:21:00.153665 133486912243520 metric_logger.py:196] completed step: 7, seconds: 22.657, TFLOP/s/device: 0.600, Tokens/s/device: 90.391, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4376.905
I0423 13:21:00.301027 133486912243520 metric_logger.py:196] completed step: 8, seconds: 0.152, TFLOP/s/device: 89.162, Tokens/s/device: 13439.467, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3846.406
I0423 13:21:00.447596 133486912243520 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0423 13:21:00.448192 133486912243520 checkpointing.py:798] Waited 0.0006167888641357422 seconds for step 9 to finish before starting checkpointing.
I0423 13:21:00.450447 133486912243520 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0423 13:21:17.916468 133356855490304 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 37.212 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 42.44888496398926 s) (per-host)
I0423 13:21:17.916584 133356855490304 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 42.170461s.
I0423 13:21:26.679438 133356855490304 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 50.933299s.
I0423 13:21:26.679771 133355728336640 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0423 13:21:26.679887 133355728336640 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0423 13:21:26.679936 133355728336640 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0423 13:21:26.681353 133355728336640 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0423 13:21:26.681585 133486912243520 checkpoint_manager.py:2032] [process=5][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0.
W0423 13:21:26.681739 133486912243520 checkpoint_manager.py:1452] Waiting for previous save to complete took 26.231293 seconds. If this number is high, consider checkpointing less frequently.
I0423 13:21:26.684755 133486912243520 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0423 13:21:26.686873 133486912243520 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints/9.
I0423 13:21:27.340831 133486912243520 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0423 13:21:27.340935 133486912243520 replica_slices.py:424] Transferring arrays to host memory with options: use_replica_parallel=True, min_slice_bytes_for_replica_parallel=None, max_replicas_for_replica_parallel=None, enable_pinned_host_transfer=False
I0423 13:21:27.380081 133486912243520 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.040396s
I0423 13:21:27.380269 133486912243520 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 35.104 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.04394340515136719 s) (per-host)
I0423 13:21:27.380334 133486912243520 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.044015s (batch_requests_ready=0.001885s, total_serialization_initiated=0.042048s, others=0.000082s)
I0423 13:21:27.380453 133486912243520 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.048186s (all_items=0.000016s, per_item={'items': '0.00001597'}, temp_paths=0.048170)
I0423 13:21:27.381222 133486912243520 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.70 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints/9.
I0423 13:21:27.381571 133355728336640 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-23 13:41:27.381530
I0423 13:21:27.383531 133486912243520 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0423 13:21:27.383771 133356830312192 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0423 13:21:27.383895 133486912243520 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776950460.4504168, 'wait_for_prev_duration_secs': 26.231292963027954, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776950486.6847944, 'checkpointer_blocking_duration_secs': 0.6968884468078613, 'get_old_steps_start_time': 1776950487.3817067, 'get_old_steps_duration_secs': 3.0279159545898438e-05, 'checkpoint_manager_blocking_start_time': 1776950460.4484181, 'checkpoint_manager_blocking_duration_secs': 26.93544101715088}
I0423 13:21:27.384011 133486912243520 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0423 13:21:27.384056 133486912243520 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0423 13:21:32.399774 133356838704896 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_post_train_fixes_20260423_124541/linen_xpk_feat_nnx_post_train_fixes_20260423_124541_10_shardy_true/checkpoints/9/items/array_metadatas/process_5
I0423 13:22:09.815509 133355728336640 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 37.185 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 42.4791419506073 s) (per-host)
I0423 13:22:09.815635 133355728336640 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 42.433420s.
I0423 13:22:17.353422 133355728336640 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 49.971193s.
I0423 13:22:17.353750 133356830312192 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0423 13:22:17.353870 133356830312192 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0423 13:22:17.353920 133356830312192 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0423 13:22:17.355409 133356830312192 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0423 13:22:17.355565 133486912243520 checkpoint_manager.py:2032] [process=5][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9.
I0423 13:22:17.355724 133486912243520 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0423 13:22:17.356714 133486912243520 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.296, Tokens/s/device: 13911.815, 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: Thu Apr 23 13:22:28 UTC 2026
EXIT_CODE=0