MaxView

XPK Start: Wed Apr 22 14:43:44 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. 
2026-04-22 14:44:09.457171: 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)
I0422 14:44:09.671309 134888008480576 max_utils.py:273] Attempting to initialize the jax distributed system...
I0422 14:44:18.711427 134888008480576 distributed.py:149] Starting JAX distributed service on [::]:8482
I0422 14:44:18.713873 134888008480576 distributed.py:172] Connecting to JAX distributed service on mt-10-shardy-true-8aapy-slice-job-0-0.mt-10-shardy-true-8aapy:8482
I0422 14:44:20.257074 134888008480576 max_utils.py:284] Jax distributed system initialized!
I0422 14:44:26.273500 134888008480576 max_utils.py:800] System Information: Jax Version: 0.9.2
I0422 14:44:26.273606 134888008480576 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0422 14:44:26.273648 134888008480576 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
I0422 14:44:26.273705 134888008480576 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0422 14:44:26.970140 134888008480576 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0422 14:44:27.084135 134888008480576 checkpointing.py:688] Setting up checkpoint logger...
I0422 14:44:27.084257 134888008480576 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0422 14:44:27.084302 134888008480576 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0422 14:44:27.084493 134888008480576 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 0x7aad80d1c0b0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0422 14:44:29.957067 134888008480576 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0422 14:44:29.957309 134888008480576 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 0x7a9950100140>}, handler_registry=None
I0422 14:44:29.957545 134888008480576 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7a9950100140>` 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`.
I0422 14:44:29.957594 134888008480576 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7a99500fdc70>` 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`.
I0422 14:44:29.957632 134888008480576 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 0x7a9950100140>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7a9950100140>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7a99500fdc70>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7a99500fdc70>}).
I0422 14:44:29.957960 134888008480576 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0422 14:44:29.958031 134888008480576 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7a992823f600> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0422 14:44:30.878961 134888008480576 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints
I0422 14:44:31.317280 134888008480576 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/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7a99282ddb50>
I0422 14:44:31.317455 134888008480576 checkpointing.py:302] Checkpoint manager created!
I0422 14:44:32.285915 134888008480576 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0422 14:44:32.286042 134888008480576 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0422 14:44:33.692704 134888008480576 maxtext_utils.py:1889]  decoder/decoder_norm/scale/value
    Shape:     float32[2048]
    Physical:  (None,)
I0422 14:44:33.692822 134888008480576 maxtext_utils.py:1889]  decoder/layers/mlp/wi_0/kernel/value
    Shape:     float32[2048,16,7168]
    Physical:  ('fsdp', None, None)
I0422 14:44:33.692876 134888008480576 maxtext_utils.py:1889]  decoder/layers/mlp/wi_1/kernel/value
    Shape:     float32[2048,16,7168]
    Physical:  ('fsdp', None, None)
I0422 14:44:33.692919 134888008480576 maxtext_utils.py:1889]  decoder/layers/mlp/wo/kernel/value
    Shape:     float32[7168,16,2048]
    Physical:  (None, None, 'fsdp')
I0422 14:44:33.692956 134888008480576 maxtext_utils.py:1889]  decoder/layers/post_self_attention_layer_norm/scale/value
    Shape:     float32[2048,16]
    Physical:  (None, None)
I0422 14:44:33.692991 134888008480576 maxtext_utils.py:1889]  decoder/layers/pre_self_attention_layer_norm/scale/value
    Shape:     float32[2048,16]
    Physical:  (None, None)
I0422 14:44:33.693030 134888008480576 maxtext_utils.py:1889]  decoder/layers/self_attention/key/kernel/value
    Shape:     float32[2048,16,16,128]
    Physical:  ('fsdp', None, None, None)
I0422 14:44:33.693068 134888008480576 maxtext_utils.py:1889]  decoder/layers/self_attention/out/kernel/value
    Shape:     float32[16,16,128,2048]
    Physical:  (None, None, None, 'fsdp')
I0422 14:44:33.693103 134888008480576 maxtext_utils.py:1889]  decoder/layers/self_attention/query/kernel/value
    Shape:     float32[2048,16,16,128]
    Physical:  ('fsdp', None, None, None)
I0422 14:44:33.693136 134888008480576 maxtext_utils.py:1889]  decoder/layers/self_attention/value/kernel/value
    Shape:     float32[2048,16,16,128]
    Physical:  ('fsdp', None, None, None)
I0422 14:44:33.693169 134888008480576 maxtext_utils.py:1889]  decoder/logits_dense/kernel/value

    Shape:     float32[2048,32000]
    Physical:  ('fsdp', None)
I0422 14:44:33.693201 134888008480576 maxtext_utils.py:1889]  token_embedder/embedding/value
    Shape:     float32[32000,2048]
    Physical:  (None, 'fsdp')
I0422 14:44:34.092011 134888008480576 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0422 14:44:34.092108 134888008480576 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 14:44:34.097450 134888008480576 nnx_decoders.py:465] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0422 14:44:34.097505 134888008480576 nnx_decoders.py:465] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 14:44:34.113842 134888008480576 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 14:44:34.113898 134888008480576 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 14:44:34.129550 134888008480576 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 14:44:34.129607 134888008480576 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 14:44:34.153457 134888008480576 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 14:44:34.153529 134888008480576 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 14:44:34.169356 134888008480576 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 14:44:34.169421 134888008480576 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 14:44:34.185218 134888008480576 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 14:44:34.185276 134888008480576 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 14:44:34.216319 134888008480576 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0422 14:44:34.216390 134888008480576 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 14:44:34.236203 134888008480576 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0422 14:44:34.236268 134888008480576 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0422 14:44:45.449342 134888008480576 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.
I0422 14:44:45.451784 134888008480576 metric_logger.py:301] number parameters: 1.104 billion
I0422 14:44:56.806322 134888008480576 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0422 14:44:56.957788 134888008480576 checkpointing.py:798] Waited 0.15144801139831543 seconds for step 0 to finish before starting checkpointing.
I0422 14:44:56.960122 134888008480576 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 14:44:56.961889 134888008480576 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0422 14:44:56.963347 134888008480576 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints/0.
I0422 14:44:57.701731 134888008480576 signaling_client.py:364] Using JaxDistributedSignalingClient
I0422 14:44:57.702766 134888008480576 jax_array_handlers.py:360] Scheduling D2H of 69 prioritized jax.Array.
I0422 14:44:57.702820 134888008480576 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
I0422 14:44:57.979499 134888008480576 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.278538s
I0422 14:44:57.979681 134888008480576 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.360 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.28781557083129883 s) (per-host)
I0422 14:44:57.979733 134888008480576 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.287889s (batch_requests_ready=0.003239s, total_serialization_initiated=0.284569s, others=0.000081s)
I0422 14:44:57.979833 134888008480576 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.292017s (all_items=0.000017s, per_item={'items': '0.00001740'}, temp_paths=0.292000)
I0422 14:44:57.980597 134888008480576 event_tracking.py:125] [process=5] [async] Finished blocking save in 1.02 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints/0.
I0422 14:44:57.980955 134759738791680 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 15:04:57.980917
I0422 14:44:57.985602 134888008480576 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 14:44:57.985920 134758102267648 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0422 14:44:57.986084 134888008480576 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776869096.960104, 'wait_for_prev_duration_secs': 5.888938903808594e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776869096.9619274, 'checkpointer_blocking_duration_secs': 1.0191822052001953, 'get_old_steps_start_time': 1776869097.981135, 'get_old_steps_duration_secs': 2.7894973754882812e-05, 'checkpoint_manager_blocking_start_time': 1776869096.9581776, 'checkpoint_manager_blocking_duration_secs': 1.0278687477111816}
I0422 14:44:57.986196 134888008480576 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0422 14:44:57.986265 134888008480576 max_utils.py:750] 
Memstats: After params initialized:
I0422 14:44:57.986313 134888008480576 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_18(process=5,(2,4,0,0))
I0422 14:44:57.986345 134888008480576 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_19(process=5,(3,4,0,0))
I0422 14:44:57.986371 134888008480576 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_22(process=5,(2,5,0,0))
I0422 14:44:57.986395 134888008480576 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_23(process=5,(3,5,0,0))
I0422 14:44:58.309515 134888008480576 metric_logger.py:196] completed step: 0, seconds: 11.353, TFLOP/s/device: 1.197, Tokens/s/device: 180.385, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52786.469
I0422 14:44:58.473695 134888008480576 metric_logger.py:196] completed step: 1, seconds: 1.501, TFLOP/s/device: 9.051, Tokens/s/device: 1364.205, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52786.469
I0422 14:44:58.911877 134888008480576 metric_logger.py:196] completed step: 2, seconds: 0.018, TFLOP/s/device: 757.070, Tokens/s/device: 114113.779, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28632.133
I0422 14:44:59.059353 134888008480576 metric_logger.py:196] completed step: 3, seconds: 0.428, TFLOP/s/device: 31.719, Tokens/s/device: 4781.092, total_weights: 65536, loss: 9.732, lm_loss: 9.732, perplexity: 16855.789
I0422 14:44:59.355278 134888008480576 metric_logger.py:196] completed step: 4, seconds: 0.165, TFLOP/s/device: 82.353, Tokens/s/device: 12413.174, total_weights: 65536, loss: 9.274, lm_loss: 9.274, perplexity: 10661.594
I0422 14:44:59.362454 134888008480576 metric_logger.py:196] completed step: 5, seconds: 0.146, TFLOP/s/device: 92.954, Tokens/s/device: 14010.987, total_weights: 65536, loss: 8.888, lm_loss: 8.888, perplexity: 7245.978
I0422 14:45:01.754006    2779 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0422 14:45:03.783624 134758122137344 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints/0/items/array_metadatas/process_5
I0422 14:45:21.464118 134888008480576 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.848, Tokens/s/device: 6910.654, total_weights: 65536, loss: 8.589, lm_loss: 8.589, perplexity: 5371.156
I0422 14:45:21.611766 134888008480576 metric_logger.py:196] completed step: 7, seconds: 21.955, TFLOP/s/device: 0.619, Tokens/s/device: 93.280, total_weights: 65536, loss: 8.380, lm_loss: 8.380, perplexity: 4360.465
I0422 14:45:21.759176 134888008480576 metric_logger.py:196] completed step: 8, seconds: 0.153, TFLOP/s/device: 88.750, Tokens/s/device: 13377.315, total_weights: 65536, loss: 8.251, lm_loss: 8.251, perplexity: 3831.256
I0422 14:45:21.907406 134888008480576 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0422 14:45:21.908051 134888008480576 checkpointing.py:798] Waited 0.0006575584411621094 seconds for step 9 to finish before starting checkpointing.
I0422 14:45:21.910136 134888008480576 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 14:45:36.048897 134759738791680 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 41.181 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 38.35700583457947 s) (per-host)
I0422 14:45:36.049021 134759738791680 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 38.067951s.
I0422 14:45:44.674743 134759738791680 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 46.693657s.
I0422 14:45:44.675051 134758102267648 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 14:45:44.675189 134758102267648 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0422 14:45:44.675240 134758102267648 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0422 14:45:44.676931 134758102267648 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0422 14:45:44.677126 134888008480576 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.
W0422 14:45:44.677277 134888008480576 checkpoint_manager.py:1452] Waiting for previous save to complete took 22.767139 seconds. If this number is high, consider checkpointing less frequently.
I0422 14:45:44.679012 134888008480576 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0422 14:45:44.680960 134888008480576 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints/9.
I0422 14:45:44.999243 134888008480576 jax_array_handlers.py:360] Scheduling D2H of 69 prioritized jax.Array.
I0422 14:45:44.999333 134888008480576 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
I0422 14:45:45.031205 134888008480576 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.033515s
I0422 14:45:45.031356 134888008480576 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 38.107 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.04048037528991699 s) (per-host)
I0422 14:45:45.031407 134888008480576 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.040540s (batch_requests_ready=0.002630s, total_serialization_initiated=0.037843s, others=0.000067s)
I0422 14:45:45.031491 134888008480576 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.044523s (all_items=0.000015s, per_item={'items': '0.00001526'}, temp_paths=0.044508)
I0422 14:45:45.032203 134888008480576 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.35 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints/9.
I0422 14:45:45.032518 134758102267648 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 15:05:45.032485
I0422 14:45:45.035126 134888008480576 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 14:45:45.035399 134734801794816 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0422 14:45:45.035557 134888008480576 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776869121.9101062, 'wait_for_prev_duration_secs': 22.767139196395874, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776869144.6790507, 'checkpointer_blocking_duration_secs': 0.3536226749420166, 'get_old_steps_start_time': 1776869145.0326953, 'get_old_steps_duration_secs': 3.0040740966796875e-05, 'checkpoint_manager_blocking_start_time': 1776869121.9082754, 'checkpoint_manager_blocking_duration_secs': 23.127248764038086}
I0422 14:45:45.035676 134888008480576 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0422 14:45:45.035720 134888008480576 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 14:45:51.749795 134758122137344 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/nnx_xpk_feat_nnx_post_train_fixes_20260422_123906_10_shardy_true/checkpoints/9/items/array_metadatas/process_5
I0422 14:46:27.524181 134758102267648 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 37.138 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 42.533262729644775 s) (per-host)
I0422 14:46:27.524305 134758102267648 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 42.491676s.
I0422 14:46:36.797674 134758102267648 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 51.765011s.
I0422 14:46:36.797962 134734801794816 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 14:46:36.798082 134734801794816 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0422 14:46:36.798133 134734801794816 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0422 14:46:36.800050 134734801794816 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0422 14:46:36.800233 134888008480576 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.
I0422 14:46:36.800400 134888008480576 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 14:46:36.801398 134888008480576 metric_logger.py:196] completed step: 9, seconds: 0.148, TFLOP/s/device: 91.791, Tokens/s/device: 13835.688, total_weights: 65536, loss: 8.175, lm_loss: 8.175, perplexity: 3551.438
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Wed Apr 22 14:46:49 UTC 2026
EXIT_CODE=0