MaxView

XPK Start: Thu Apr 23 13:21:32 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 13:21:57.301633: 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 13:21:57.511672 133615164036928 max_utils.py:273] Attempting to initialize the jax distributed system...
I0423 13:22:06.553547 133615164036928 distributed.py:149] Starting JAX distributed service on [::]:8482
I0423 13:22:06.555853 133615164036928 distributed.py:172] Connecting to JAX distributed service on mt-10-shardy-false-ojkcj-slice-job-0-0.mt-10-shardy-false-ojkcj:8482
I0423 13:22:08.182342 133615164036928 max_utils.py:284] Jax distributed system initialized!
I0423 13:22:14.089650 133615164036928 max_utils.py:800] System Information: Jax Version: 0.9.2
I0423 13:22:14.089758 133615164036928 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0423 13:22:14.089805 133615164036928 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 13:22:14.089852 133615164036928 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0423 13:22:14.808315 133615164036928 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0423 13:22:14.808991 133615164036928 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0423 13:22:14.809189 133615164036928 checkpointing.py:688] Setting up checkpoint logger...
I0423 13:22:14.809248 133615164036928 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0423 13:22:14.809309 133615164036928 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0423 13:22:14.809684 133615164036928 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 0x79851af1ff20>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0423 13:22:18.071608 133615164036928 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0423 13:22:18.071849 133615164036928 checkpoint_manager.py:708] [process=3][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7971183f2c60>}, handler_registry=None
I0423 13:22:18.072102 133615164036928 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7971183f2c60>` 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 13:22:18.072152 133615164036928 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7971181f1940>` 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 13:22:18.072190 133615164036928 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 0x7971183f2c60>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7971183f2c60>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7971181f1940>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7971181f1940>}).
I0423 13:22:18.072521 133615164036928 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0423 13:22:18.072591 133615164036928 async_checkpointer.py:192] [process=3][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7970e8579e40> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0423 13:22:18.747084 133615164036928 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_false/checkpoints
I0423 13:22:18.970272 133615164036928 checkpoint_manager.py:929] [process=3][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_false/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7971181f6300>
I0423 13:22:18.970446 133615164036928 checkpointing.py:302] Checkpoint manager created!
I0423 13:22:19.906016 133615164036928 nnx_wrappers.py:437] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0423 13:22:19.906122 133615164036928 nnx_wrappers.py:437] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 13:22:20.287775 133615164036928 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0423 13:22:20.287872 133615164036928 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 13:22:20.304580 133615164036928 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0423 13:22:20.304641 133615164036928 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0423 13:22:20.328860 133615164036928 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 13:22:20.328939 133615164036928 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 13:22:20.345695 133615164036928 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 13:22:20.345767 133615164036928 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 13:22:20.362538 133615164036928 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 13:22:20.362596 133615164036928 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 13:22:20.387711 133615164036928 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0423 13:22:20.387784 133615164036928 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0423 13:22:20.409066 133615164036928 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0423 13:22:20.409135 133615164036928 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0423 13:22:20.632198 133615164036928 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0423 13:22:20.632308 133615164036928 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0423 13:22:22.033802 133615164036928 maxtext_utils.py:1880]  params/params/decoder/decoder_norm/scale
    Shape:     float32[2048]
    Logical:   P('norm',)
    Physical:  (None,)
I0423 13:22:22.033939 133615164036928 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 13:22:22.033998 133615164036928 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 13:22:22.034058 133615164036928 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 13:22:22.034113 133615164036928 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 13:22:22.034157 133615164036928 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 13:22:22.034216 133615164036928 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 13:22:22.034273 133615164036928 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 13:22:22.034316 133615164036928 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 13:22:22.034354 133615164036928 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 13:22:22.034404 133615164036928 maxtext_utils.py:1880]  params/params/decoder/logits_dense/kernel
    Shape:     float32[2048,32000]
    Logical:   P('embed_vocab', 'vocab')
    Physical:  ('fsdp', None)
I0423 13:22:22.034456 133615164036928 maxtext_utils.py:1880]  params/params/token_embedder/embedding
    Shape:     float32[32000,2048]
    Logical:   P('vocab', 'embed_vocab')
    Physical:  (None, 'fsdp')

I0423 13:22:22.535819 133615164036928 train.py:157] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0423 13:22:22.535913 133615164036928 train.py:157] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0423 13:22:22.551627 133615164036928 train.py:164] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0423 13:22:22.551690 133615164036928 train.py:164] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0423 13:22:33.405770 133615164036928 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 13:22:33.406622 133615164036928 metric_logger.py:301] number parameters: 1.104 billion
I0423 13:22:44.649353 133615164036928 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0423 13:22:44.803321 133615164036928 checkpointing.py:798] Waited 0.15394997596740723 seconds for step 0 to finish before starting checkpointing.
I0423 13:22:44.805805 133615164036928 checkpoint_manager.py:2009] [process=3][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0423 13:22:44.807448 133615164036928 checkpoint_manager.py:1512] [process=3] Saving checkpoint at step 0
I0423 13:22:44.808856 133615164036928 event_tracking.py:70] [process=3] [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_false/checkpoints/0.
I0423 13:22:45.146136 133615164036928 signaling_client.py:364] Using JaxDistributedSignalingClient
I0423 13:22:45.146987 133615164036928 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0423 13:22:45.147042 133615164036928 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 13:22:45.421437 133615164036928 base_pytree_checkpoint_handler.py:154] [process=3][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.275372s
I0423 13:22:45.421614 133615164036928 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/blocking_gbytes_per_sec: 5.488 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.28107643127441406 s) (per-host)
I0423 13:22:45.421670 133615164036928 base_pytree_checkpoint_handler.py:768] [process=3][thread=MainThread] Initiated Pytree async_save. Time taken: 0.281143s (batch_requests_ready=0.002309s, total_serialization_initiated=0.278760s, others=0.000074s)
I0423 13:22:45.421766 133615164036928 composite_checkpoint_handler.py:715] [process=3][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.285382s (all_items=0.000017s, per_item={'items': '0.00001740'}, temp_paths=0.285364)
I0423 13:22:45.422608 133615164036928 event_tracking.py:125] [process=3] [async] Finished blocking save in 0.62 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_false/checkpoints/0.
I0423 13:22:45.422956 133486912468736 async_checkpointer.py:76] [process=3][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-23 13:42:45.422907
I0423 13:22:45.430555 133615164036928 checkpoint_manager.py:1560] [process=3][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0423 13:22:45.430854 133485252077312 async_checkpointer.py:280] [process=3][thread=save_finalize] Waiting for background save thread=async_save.
I0423 13:22:45.430996 133615164036928 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_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776950564.8057868, 'wait_for_prev_duration_secs': 6.151199340820312e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776950564.8074894, 'checkpointer_blocking_duration_secs': 0.6156182289123535, 'get_old_steps_start_time': 1776950565.4231317, 'get_old_steps_duration_secs': 3.266334533691406e-05, 'checkpoint_manager_blocking_start_time': 1776950564.8038526, 'checkpoint_manager_blocking_duration_secs': 0.6271078586578369}
I0423 13:22:45.431150 133615164036928 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0423 13:22:45.431201 133615164036928 max_utils.py:750] 
Memstats: After params initialized:
I0423 13:22:45.431249 133615164036928 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_10(process=3,(2,2,0,0))
I0423 13:22:45.431288 133615164036928 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_11(process=3,(3,2,0,0))
I0423 13:22:45.431316 133615164036928 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_14(process=3,(2,3,0,0))
I0423 13:22:45.431341 133615164036928 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_15(process=3,(3,3,0,0))
I0423 13:22:45.750903 133615164036928 metric_logger.py:196] completed step: 0, seconds: 11.243, TFLOP/s/device: 1.209, Tokens/s/device: 182.164, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0423 13:22:45.922992 133615164036928 metric_logger.py:196] completed step: 1, seconds: 1.100, TFLOP/s/device: 12.351, Tokens/s/device: 1861.654, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0423 13:22:46.346740 133615164036928 metric_logger.py:196] completed step: 2, seconds: 0.025, TFLOP/s/device: 548.355, Tokens/s/device: 82653.967, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129
I0423 13:22:46.494218 133615164036928 metric_logger.py:196] completed step: 3, seconds: 0.424, TFLOP/s/device: 32.048, Tokens/s/device: 4830.644, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.203
I0423 13:22:46.789213 133615164036928 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 88.703, Tokens/s/device: 13370.328, total_weights: 65536, loss: 9.277, lm_loss: 9.277, perplexity: 10694.614
I0423 13:22:46.795067 133615164036928 metric_logger.py:196] completed step: 5, seconds: 0.147, TFLOP/s/device: 92.286, Tokens/s/device: 13910.397, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.717
I0423 13:22:48.332902    2823 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0423 13:22:50.482954 133485260470016 array_metadata_store.py:203] [process=3][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_false/checkpoints/0/items/array_metadatas/process_3
I0423 13:23:08.348727 133615164036928 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.977, Tokens/s/device: 6930.157, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.759
I0423 13:23:08.495919 133615164036928 metric_logger.py:196] completed step: 7, seconds: 21.407, TFLOP/s/device: 0.635, Tokens/s/device: 95.671, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4376.905
I0423 13:23:08.643081 133615164036928 metric_logger.py:196] completed step: 8, seconds: 0.152, TFLOP/s/device: 89.226, Tokens/s/device: 13449.087, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3846.406
I0423 13:23:08.789611 133615164036928 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0423 13:23:08.790307 133615164036928 checkpointing.py:798] Waited 0.0007159709930419922 seconds for step 9 to finish before starting checkpointing.
I0423 13:23:08.792332 133615164036928 checkpoint_manager.py:2020] [process=3][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0423 13:23:20.757874 133486912468736 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/gbytes_per_sec: 44.349 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 35.617290019989014 s) (per-host)
I0423 13:23:20.758011 133486912468736 async_checkpointer.py:90] [process=3][thread=async_save] 3 Handler Commit operations completed. Time taken: 35.334943s.
I0423 13:23:31.341262 133486912468736 async_checkpointer.py:160] [process=3][thread=async_save] Background save thread done. Time taken: 45.918177s.
I0423 13:23:31.341556 133485252077312 async_checkpointer.py:288] [process=3][thread=save_finalize] Done with waiting for background save thread=async_save.
I0423 13:23:31.341704 133485252077312 async_checkpointer.py:298] [process=3][thread=save_finalize] No errors found in background save thread=async_save.
I0423 13:23:31.341776 133485252077312 checkpoint_manager.py:2137] [process=3][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0423 13:23:31.343354 133485252077312 checkpoint_manager.py:2146] [process=3][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0423 13:23:31.343540 133615164036928 checkpoint_manager.py:2032] [process=3][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0.
W0423 13:23:31.343670 133615164036928 checkpoint_manager.py:1452] Waiting for previous save to complete took 22.551341 seconds. If this number is high, consider checkpointing less frequently.
I0423 13:23:31.345594 133615164036928 checkpoint_manager.py:1512] [process=3] Saving checkpoint at step 9
I0423 13:23:31.347638 133615164036928 event_tracking.py:70] [process=3] [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_false/checkpoints/9.
I0423 13:23:32.165953 133615164036928 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0423 13:23:32.166051 133615164036928 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 13:23:32.202764 133615164036928 base_pytree_checkpoint_handler.py:154] [process=3][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.037784s
I0423 13:23:32.202946 133615164036928 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/blocking_gbytes_per_sec: 3.297 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.4678325653076172 s) (per-host)
I0423 13:23:32.203000 133615164036928 base_pytree_checkpoint_handler.py:768] [process=3][thread=MainThread] Initiated Pytree async_save. Time taken: 0.467909s (batch_requests_ready=0.428304s, total_serialization_initiated=0.039521s, others=0.000084s)
I0423 13:23:32.203091 133615164036928 composite_checkpoint_handler.py:715] [process=3][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.471978s (all_items=0.000016s, per_item={'items': '0.00001574'}, temp_paths=0.471962)
I0423 13:23:32.203827 133615164036928 event_tracking.py:125] [process=3] [async] Finished blocking save in 0.86 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_false/checkpoints/9.
I0423 13:23:32.204142 133485252077312 async_checkpointer.py:76] [process=3][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-23 13:43:32.204110
I0423 13:23:32.218320 133615164036928 checkpoint_manager.py:1560] [process=3][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0423 13:23:32.218640 133485260470016 async_checkpointer.py:280] [process=3][thread=save_finalize] Waiting for background save thread=async_save.
I0423 13:23:32.218834 133615164036928 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_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776950588.7923007, 'wait_for_prev_duration_secs': 22.55134105682373, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776950611.3456337, 'checkpointer_blocking_duration_secs': 0.8586492538452148, 'get_old_steps_start_time': 1776950612.2043064, 'get_old_steps_duration_secs': 2.9087066650390625e-05, 'checkpoint_manager_blocking_start_time': 1776950588.7905383, 'checkpoint_manager_blocking_duration_secs': 23.42825984954834}
I0423 13:23:32.218963 133615164036928 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0423 13:23:32.219010 133615164036928 checkpoint_manager.py:2020] [process=3][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0423 13:23:37.419879 133461629134592 array_metadata_store.py:203] [process=3][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_false/checkpoints/9/items/array_metadatas/process_3
I0423 13:24:15.759248 133485252077312 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/gbytes_per_sec: 35.880 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 44.0241060256958 s) (per-host)
I0423 13:24:15.759369 133485252077312 async_checkpointer.py:90] [process=3][thread=async_save] 3 Handler Commit operations completed. Time taken: 43.555118s.
I0423 13:24:27.091490 133485252077312 async_checkpointer.py:160] [process=3][thread=async_save] Background save thread done. Time taken: 54.887223s.
I0423 13:24:27.091775 133485260470016 async_checkpointer.py:288] [process=3][thread=save_finalize] Done with waiting for background save thread=async_save.
I0423 13:24:27.091892 133485260470016 async_checkpointer.py:298] [process=3][thread=save_finalize] No errors found in background save thread=async_save.
I0423 13:24:27.091956 133485260470016 checkpoint_manager.py:2137] [process=3][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0423 13:24:27.094366 133485260470016 checkpoint_manager.py:2146] [process=3][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0423 13:24:27.094528 133615164036928 checkpoint_manager.py:2032] [process=3][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9.
I0423 13:24:27.094669 133615164036928 checkpoint_manager.py:2009] [process=3][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0423 13:24:27.095648 133615164036928 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.382, Tokens/s/device: 13924.774, 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 13:24:37 UTC 2026
EXIT_CODE=0