MaxView

XPK Start: Sat Apr 25 12:45:57 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 12:46:22.333372: 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 12:46:22.546051 138384965478208 max_utils.py:273] Attempting to initialize the jax distributed system...
I0425 12:46:31.588437 138384965478208 distributed.py:149] Starting JAX distributed service on [::]:8482
I0425 12:46:31.590714 138384965478208 distributed.py:172] Connecting to JAX distributed service on mt-11-optimizer-offload-kvumg-slice-job-0-0.mt-11-optimizer-offload-kvumg:8482
I0425 12:46:32.713450 138384965478208 max_utils.py:284] Jax distributed system initialized!
I0425 12:46:37.780605 138384965478208 max_utils.py:800] System Information: Jax Version: 0.9.2
I0425 12:46:37.780713 138384965478208 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0425 12:46:37.780755 138384965478208 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 12:46:37.780791 138384965478208 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0425 12:46:38.475761 138384965478208 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0425 12:46:38.476365 138384965478208 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0425 12:46:38.476549 138384965478208 checkpointing.py:688] Setting up checkpoint logger...
I0425 12:46:38.476600 138384965478208 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0425 12:46:38.476643 138384965478208 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0425 12:46:38.476980 138384965478208 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 0x7ddbbdfaa6c0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0425 12:46:41.350310 138384965478208 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0425 12:46:41.350547 138384965478208 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 0x7dc82053bb30>}, handler_registry=None
I0425 12:46:41.350785 138384965478208 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7dc82053bb30>` 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 12:46:41.350834 138384965478208 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7dc82053c920>` 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 12:46:41.350871 138384965478208 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 0x7dc82053bb30>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7dc82053bb30>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7dc82053c920>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7dc82053c920>}).
I0425 12:46:41.351218 138384965478208 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0425 12:46:41.351293 138384965478208 async_checkpointer.py:192] [process=6][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7dc8202b1e40> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0425 12:46:42.172909 138384965478208 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_11_optimizer_offload_true/checkpoints
I0425 12:46:42.187819 138384965478208 checkpoint_manager.py:929] [process=6][thread=MainThread] CheckpointManager created,  primary_host=0, CheckpointManagerOptions=CheckpointManagerOptions(save_interval_steps=1, max_to_keep=None, keep_time_interval=None, keep_period=None, should_keep_fn=None, best_fn=None, best_mode='max', keep_checkpoints_without_metrics=True, step_prefix=None, step_format_fixed_length=None, step_name_format=None, create=True, cleanup_tmp_directories=False, save_on_steps=frozenset(), single_host_load_and_broadcast=False, todelete_subdir=None, todelete_full_path=None, enable_background_delete=False, read_only=False, enable_async_checkpointing=True, async_options=None, multiprocessing_options=MultiprocessingOptions(primary_host=0, active_processes=None, barrier_sync_key_prefix=None), should_save_fn=None, file_options=FileOptions(path_permission_mode=None), save_root_metadata=True, temporary_path_class=None, save_decision_policy=FixedIntervalPolicy(interval=10), preservation_policy=LatestN(n=None), prevent_write_metrics=False, enable_should_save_is_saving_in_progress_check=True, enable_per_process_directory_creation=False, lightweight_initialize=False), root_directory=gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_11_optimizer_offload_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7dc820539af0>
I0425 12:46:42.187990 138384965478208 checkpointing.py:302] Checkpoint manager created!
I0425 12:46:43.130626 138384965478208 nnx_wrappers.py:437] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0425 12:46:43.130736 138384965478208 nnx_wrappers.py:437] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 12:46:43.512774 138384965478208 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn').
I0425 12:46:43.512866 138384965478208 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 12:46:43.529617 138384965478208 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn').
I0425 12:46:43.529679 138384965478208 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 12:46:43.554016 138384965478208 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 12:46:43.554086 138384965478208 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 12:46:43.570833 138384965478208 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 12:46:43.570896 138384965478208 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 12:46:43.587443 138384965478208 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 12:46:43.587504 138384965478208 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 12:46:43.612405 138384965478208 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch_attn', 'activation_length_attn', 'activation_heads', 'activation_kv').
I0425 12:46:43.612476 138384965478208 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 12:46:43.633344 138384965478208 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0425 12:46:43.633408 138384965478208 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0425 12:46:43.851566 138384965478208 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0425 12:46:43.851678 138384965478208 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0425 12:46:45.484519 138384965478208 maxtext_utils.py:1880]  params/params/decoder/decoder_norm/scale
    Shape:     float32[2048]
    Logical:   P('norm',)
    Physical:  (None,)
I0425 12:46:45.484656 138384965478208 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 12:46:45.484711 138384965478208 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 12:46:45.484770 138384965478208 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 12:46:45.484823 138384965478208 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 12:46:45.484862 138384965478208 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 12:46:45.484918 138384965478208 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 12:46:45.484973 138384965478208 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 12:46:45.485013 138384965478208 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 12:46:45.485049 138384965478208 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 12:46:45.485108 138384965478208 maxtext_utils.py:1880]  params/params/decoder/logits_dense/kernel
    Shape:     float32[2048,32000]
    Logical:   P('embed_vocab', 'vocab')
    Physical:  ('fsdp', None)
I0425 12:46:45.485163 138384965478208 maxtext_utils.py:1880]  params/params/token_embedder/embedding
    Shape:     float32[32000,2048]
    Logical:   P('vocab', 'embed_vocab')
    Physical:  (None, 'fsdp')

I0425 12:46:45.989504 138384965478208 train.py:157] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0425 12:46:45.989600 138384965478208 train.py:157] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0425 12:46:46.005297 138384965478208 train.py:164] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0425 12:46:46.005360 138384965478208 train.py:164] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0425 12:46:56.932588 138384965478208 max_utils.py:791] Total memory size: 1.3 GB, Output size: 0.1 GB, Temp size: 1.1 GB, Argument size: 0.1 GB, Host temp size: 0.0 GB.
I0425 12:46:56.933410 138384965478208 metric_logger.py:301] number parameters: 1.104 billion
I0425 12:47:08.689483 138384965478208 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0425 12:47:08.859040 138384965478208 checkpointing.py:798] Waited 0.16954326629638672 seconds for step 0 to finish before starting checkpointing.
I0425 12:47:08.861423 138384965478208 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 12:47:08.863374 138384965478208 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 0
I0425 12:47:08.864722 138384965478208 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_11_optimizer_offload_true/checkpoints/0.
I0425 12:47:09.188724 138384965478208 signaling_client.py:364] Using JaxDistributedSignalingClient
I0425 12:47:09.189593 138384965478208 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 12:47:09.189656 138384965478208 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 12:47:09.461047 138384965478208 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.272397s
I0425 12:47:09.461259 138384965478208 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 5.531 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.27889132499694824 s) (per-host)
I0425 12:47:09.461326 138384965478208 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.278969s (batch_requests_ready=0.002394s, total_serialization_initiated=0.276488s, others=0.000088s)
I0425 12:47:09.461446 138384965478208 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.283070s (all_items=0.000026s, per_item={'items': '0.00002575'}, temp_paths=0.283044)
I0425 12:47:09.462409 138384965478208 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.60 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_11_optimizer_offload_true/checkpoints/0.
I0425 12:47:09.462747 138253084636928 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 13:07:09.462710
I0425 12:47:09.468698 138384965478208 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 12:47:09.468950 138252542600960 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 12:47:09.469129 138384965478208 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_11_optimizer_offload_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777121228.8614054, 'wait_for_prev_duration_secs': 6.008148193359375e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777121228.8634133, 'checkpointer_blocking_duration_secs': 0.5994904041290283, 'get_old_steps_start_time': 1777121229.462929, 'get_old_steps_duration_secs': 2.8133392333984375e-05, 'checkpoint_manager_blocking_start_time': 1777121228.8595967, 'checkpoint_manager_blocking_duration_secs': 0.6094715595245361}
I0425 12:47:09.469235 138384965478208 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0425 12:47:09.469284 138384965478208 max_utils.py:750] 
Memstats: After params initialized:
I0425 12:47:09.469330 138384965478208 max_utils.py:756] 	Using (GB) 0.17 / 31.25 (0.544000%) on TPU_24(process=6,(0,6,0,0))
I0425 12:47:09.469364 138384965478208 max_utils.py:756] 	Using (GB) 0.17 / 31.25 (0.544000%) on TPU_25(process=6,(1,6,0,0))
I0425 12:47:09.469393 138384965478208 max_utils.py:756] 	Using (GB) 0.17 / 31.25 (0.544000%) on TPU_28(process=6,(0,7,0,0))
I0425 12:47:09.469419 138384965478208 max_utils.py:756] 	Using (GB) 0.17 / 31.25 (0.544000%) on TPU_29(process=6,(1,7,0,0))
I0425 12:47:09.783057 138384965478208 metric_logger.py:196] completed step: 0, seconds: 11.756, TFLOP/s/device: 1.156, Tokens/s/device: 174.210, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0425 12:47:09.983398 138384965478208 metric_logger.py:196] completed step: 1, seconds: 1.092, TFLOP/s/device: 12.442, Tokens/s/device: 1875.406, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0425 12:47:10.411916 138384965478208 metric_logger.py:196] completed step: 2, seconds: 0.038, TFLOP/s/device: 361.369, Tokens/s/device: 54469.534, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129
I0425 12:47:10.574600 138384965478208 metric_logger.py:196] completed step: 3, seconds: 0.429, TFLOP/s/device: 31.696, Tokens/s/device: 4777.624, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.047
I0425 12:47:10.900861 138384965478208 metric_logger.py:196] completed step: 4, seconds: 0.169, TFLOP/s/device: 80.394, Tokens/s/device: 12117.841, total_weights: 65536, loss: 9.278, lm_loss: 9.278, perplexity: 10694.968
I0425 12:47:10.907377 138384965478208 metric_logger.py:196] completed step: 5, seconds: 0.162, TFLOP/s/device: 83.796, Tokens/s/device: 12630.592, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.520
I0425 12:47:12.387331    2720 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0425 12:47:14.394269 138253067851520 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_11_optimizer_offload_true/checkpoints/0/items/array_metadatas/process_6
I0425 12:47:33.098866 138384965478208 metric_logger.py:196] completed step: 6, seconds: 0.327, TFLOP/s/device: 41.507, Tokens/s/device: 6256.396, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.688
I0425 12:47:33.261786 138384965478208 metric_logger.py:196] completed step: 7, seconds: 22.029, TFLOP/s/device: 0.617, Tokens/s/device: 92.966, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4377.010
I0425 12:47:33.424522 138384965478208 metric_logger.py:196] completed step: 8, seconds: 0.167, TFLOP/s/device: 81.132, Tokens/s/device: 12229.056, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3845.943
I0425 12:47:33.586939 138384965478208 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0425 12:47:33.587629 138384965478208 checkpointing.py:798] Waited 0.0007128715515136719 seconds for step 9 to finish before starting checkpointing.
I0425 12:47:33.589593 138384965478208 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 12:47:46.166633 138253084636928 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 42.708 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 36.984232664108276 s) (per-host)
I0425 12:47:46.166759 138253084636928 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.703897s.
I0425 12:47:52.907690 138253084636928 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 43.444812s.
I0425 12:47:52.907995 138252542600960 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 12:47:52.908135 138252542600960 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 12:47:52.908189 138252542600960 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0425 12:47:52.910437 138252542600960 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0425 12:47:52.910690 138384965478208 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 12:47:52.910832 138384965478208 checkpoint_manager.py:1452] Waiting for previous save to complete took 19.321238 seconds. If this number is high, consider checkpointing less frequently.
I0425 12:47:52.912719 138384965478208 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 9
I0425 12:47:52.914768 138384965478208 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_11_optimizer_offload_true/checkpoints/9.
I0425 12:47:53.544816 138384965478208 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 12:47:53.544912 138384965478208 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 12:47:53.579988 138384965478208 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.036051s
I0425 12:47:53.580176 138384965478208 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 38.966 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.03958582878112793 s) (per-host)
I0425 12:47:53.580232 138384965478208 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.039652s (batch_requests_ready=0.001944s, total_serialization_initiated=0.037634s, others=0.000074s)
I0425 12:47:53.580335 138384965478208 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.043869s (all_items=0.000016s, per_item={'items': '0.00001574'}, temp_paths=0.043853)
I0425 12:47:53.581077 138384965478208 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.67 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_11_optimizer_offload_true/checkpoints/9.
I0425 12:47:53.581518 138252542600960 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 13:07:53.581480
I0425 12:47:53.583542 138384965478208 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 12:47:53.583852 138253067851520 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 12:47:53.584019 138384965478208 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_11_optimizer_offload_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777121253.589563, 'wait_for_prev_duration_secs': 19.321237564086914, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777121272.9127586, 'checkpointer_blocking_duration_secs': 0.6689260005950928, 'get_old_steps_start_time': 1777121273.58171, 'get_old_steps_duration_secs': 3.123283386230469e-05, 'checkpoint_manager_blocking_start_time': 1777121253.5878596, 'checkpoint_manager_blocking_duration_secs': 19.996123790740967}
I0425 12:47:53.584144 138384965478208 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0425 12:47:53.584191 138384965478208 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 12:47:58.947471 138240388450048 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_11_optimizer_offload_true/checkpoints/9/items/array_metadatas/process_6
I0425 12:48:35.389389 138252542600960 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 37.744 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 41.84875178337097 s) (per-host)
I0425 12:48:35.389515 138252542600960 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 41.807866s.
I0425 12:48:41.780130 138252542600960 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 48.198442s.
I0425 12:48:41.780421 138253067851520 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 12:48:41.780531 138253067851520 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 12:48:41.780586 138253067851520 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0425 12:48:41.782890 138253067851520 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0425 12:48:41.783111 138384965478208 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 12:48:41.783265 138384965478208 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 12:48:41.784265 138384965478208 metric_logger.py:196] completed step: 9, seconds: 0.163, TFLOP/s/device: 83.346, Tokens/s/device: 12562.876, total_weights: 65536, loss: 8.179, lm_loss: 8.179, perplexity: 3564.739
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Sat Apr 25 12:48:53 UTC 2026
EXIT_CODE=0