MaxView

XPK Start: Wed Apr 22 13:12:57 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. 
2026-04-22 13:13:22.803836: 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 13:13:23.015605 140367654737728 max_utils.py:273] Attempting to initialize the jax distributed system...
I0422 13:13:32.055490 140367654737728 distributed.py:149] Starting JAX distributed service on [::]:8482
I0422 13:13:32.057838 140367654737728 distributed.py:172] Connecting to JAX distributed service on mt-09-pdb-lt-1-hz6q3-slice-job-0-0.mt-09-pdb-lt-1-hz6q3:8482
I0422 13:13:32.868310 140367654737728 max_utils.py:284] Jax distributed system initialized!
I0422 13:13:38.959683 140367654737728 max_utils.py:800] System Information: Jax Version: 0.9.2
I0422 13:13:38.959786 140367654737728 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0422 13:13:38.959828 140367654737728 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 13:13:38.959867 140367654737728 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0422 13:13:39.652363 140367654737728 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 8, 1, 1, 1, 1, 4, 1, 1, 1, 1)
I0422 13:13:39.652995 140367654737728 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 8, 1, 1, 1, 1, 4, 1, 1, 1, 1)
I0422 13:13:39.653173 140367654737728 checkpointing.py:688] Setting up checkpoint logger...
I0422 13:13:39.653223 140367654737728 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0422 13:13:39.653266 140367654737728 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0422 13:13:39.653600 140367654737728 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 0x7fa92c850290>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0422 13:13:42.582793 140367654737728 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0422 13:13:42.583030 140367654737728 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 0x7f950876a7b0>}, handler_registry=None
I0422 13:13:42.583287 140367654737728 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f950876a7b0>` 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 13:13:42.583338 140367654737728 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f95085e32f0>` 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 13:13:42.583375 140367654737728 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 0x7f950876a7b0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f950876a7b0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f95085e32f0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f95085e32f0>}).
I0422 13:13:42.583717 140367654737728 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0422 13:13:42.583787 140367654737728 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7f94f0381d00> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0422 13:13:44.712403 140367654737728 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints
I0422 13:13:44.714723 140367654737728 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_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7f950876acf0>
I0422 13:13:44.714833 140367654737728 checkpointing.py:302] Checkpoint manager created!
I0422 13:13:45.638939 140367654737728 nnx_wrappers.py:437] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0422 13:13:45.639042 140367654737728 nnx_wrappers.py:437] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, 'tensor').
I0422 13:13:46.023099 140367654737728 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 13:13:46.023196 140367654737728 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, 'tensor').
I0422 13:13:46.039812 140367654737728 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 13:13:46.039872 140367654737728 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, 'tensor').
I0422 13:13:46.063781 140367654737728 attentions.py:1154] attentions/query Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 13:13:46.063850 140367654737728 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, 'tensor', None).
I0422 13:13:46.080466 140367654737728 attentions.py:1155] attentions/key Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 13:13:46.080531 140367654737728 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, 'tensor', None).
I0422 13:13:46.097175 140367654737728 attentions.py:1156] attentions/value Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 13:13:46.097241 140367654737728 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, 'tensor', None).
I0422 13:13:46.122298 140367654737728 attentions.py:1198] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0422 13:13:46.122363 140367654737728 attentions.py:1198] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, 'tensor', None).
I0422 13:13:46.143236 140367654737728 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0422 13:13:46.143298 140367654737728 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, 'tensor').
I0422 13:13:46.366343 140367654737728 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0422 13:13:46.366452 140367654737728 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 8
tensor: 4
I0422 13:13:47.830213 140367654737728 maxtext_utils.py:1880]  params/params/decoder/decoder_norm/scale
    Shape:     float32[2048]
    Logical:   P('norm',)
    Physical:  ('tensor',)
I0422 13:13:47.830343 140367654737728 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, 'tensor')
I0422 13:13:47.830397 140367654737728 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, 'tensor')
I0422 13:13:47.830455 140367654737728 maxtext_utils.py:1880]  params/params/decoder/layers/mlp/wo/kernel
    Shape:     float32[7168,16,2048]
    Logical:   P('mlp', 'layers', 'embed')
    Physical:  ('tensor', None, 'fsdp')
I0422 13:13:47.830508 140367654737728 maxtext_utils.py:1880]  params/params/decoder/layers/post_self_attention_layer_norm/scale
    Shape:     float32[2048,16]
    Logical:   P('norm', 'layers')
    Physical:  ('tensor', None)
I0422 13:13:47.830548 140367654737728 maxtext_utils.py:1880]  params/params/decoder/layers/pre_self_attention_layer_norm/scale
    Shape:     float32[2048,16]
    Logical:   P('norm', 'layers')
    Physical:  ('tensor', None)
I0422 13:13:47.830601 140367654737728 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, 'tensor', None)
I0422 13:13:47.830666 140367654737728 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:  ('tensor', None, None, 'fsdp')
I0422 13:13:47.830712 140367654737728 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, 'tensor', None)
I0422 13:13:47.830751 140367654737728 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, 'tensor', None)
I0422 13:13:47.830801 140367654737728 maxtext_utils.py:1880]  params/params/decoder/logits_dense/kernel
    Shape:     float32[2048,32000]
    Logical:   P('embed_vocab', 'vocab')
    Physical:  ('fsdp', 'tensor')

I0422 13:13:47.830855 140367654737728 maxtext_utils.py:1880]  params/params/token_embedder/embedding
    Shape:     float32[32000,2048]
    Logical:   P('vocab', 'embed_vocab')
    Physical:  ('tensor', 'fsdp')
I0422 13:13:48.331147 140367654737728 train.py:157] train/xent Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0422 13:13:48.331240 140367654737728 train.py:157] train/xent Physical: float32[8,2048]............................................. ('fsdp', None).
I0422 13:13:48.346840 140367654737728 train.py:164] train/z_loss Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0422 13:13:48.346902 140367654737728 train.py:164] train/z_loss Physical: float32[8,2048]............................................. ('fsdp', None).
I0422 13:14:03.345853 140367654737728 max_utils.py:791] Total memory size: 0.9 GB, Output size: 0.4 GB, Temp size: 0.5 GB, Argument size: 0.4 GB, Host temp size: 0.0 GB.
I0422 13:14:03.346643 140367654737728 metric_logger.py:301] number parameters: 1.104 billion
I0422 13:14:04.532193 140367654737728 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0422 13:14:19.017856 140367654737728 checkpointing.py:798] Waited 14.485643148422241 seconds for step 0 to finish before starting checkpointing.
I0422 13:14:19.020319 140367654737728 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 13:14:19.025296 140367654737728 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0422 13:14:19.026980 140367654737728 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints/0.
I0422 13:14:19.322294 140367654737728 signaling_client.py:364] Using JaxDistributedSignalingClient
I0422 13:14:19.323218 140367654737728 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0422 13:14:19.323280 140367654737728 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 13:14:19.588534 140367654737728 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.266319s
I0422 13:14:19.588704 140367654737728 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.667 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.272202730178833 s) (per-host)
I0422 13:14:19.588754 140367654737728 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.272263s (batch_requests_ready=0.002393s, total_serialization_initiated=0.269803s, others=0.000067s)
I0422 13:14:19.588846 140367654737728 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.276453s (all_items=0.000018s, per_item={'items': '0.00001788'}, temp_paths=0.276435)
I0422 13:14:19.589640 140367654737728 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.56 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints/0.
I0422 13:14:19.589938 140240090621696 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 13:34:19.589906
I0422 13:14:19.608962 140367654737728 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 13:14:19.609271 140239590905600 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0422 13:14:19.609428 140367654737728 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776863659.0203009, 'wait_for_prev_duration_secs': 6.127357482910156e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776863659.0253382, 'checkpointer_blocking_duration_secs': 0.5647475719451904, 'get_old_steps_start_time': 1776863659.590111, 'get_old_steps_duration_secs': 3.0517578125e-05, 'checkpoint_manager_blocking_start_time': 1776863659.0183918, 'checkpoint_manager_blocking_duration_secs': 0.5909972190856934}
I0422 13:14:19.609534 140367654737728 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0422 13:14:19.609584 140367654737728 max_utils.py:750] 
Memstats: After params initialized:
I0422 13:14:19.609635 140367654737728 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_18(process=5,(2,4,0,0))
I0422 13:14:19.609681 140367654737728 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_19(process=5,(3,4,0,0))
I0422 13:14:19.609711 140367654737728 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_22(process=5,(2,5,0,0))
I0422 13:14:19.609737 140367654737728 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_23(process=5,(3,5,0,0))
I0422 13:14:19.923069 140367654737728 metric_logger.py:196] completed step: 0, seconds: 1.185, TFLOP/s/device: 2.865, Tokens/s/device: 431.912, total_weights: 16384, loss: 10.862, lm_loss: 10.862, perplexity: 52153.723
I0422 13:14:20.007662 140367654737728 metric_logger.py:196] completed step: 1, seconds: 15.389, TFLOP/s/device: 0.221, Tokens/s/device: 33.270, total_weights: 16384, loss: 10.862, lm_loss: 10.862, perplexity: 52153.723
I0422 13:14:20.437523 140367654737728 metric_logger.py:196] completed step: 2, seconds: 0.026, TFLOP/s/device: 129.008, Tokens/s/device: 19445.499, total_weights: 16384, loss: 9.763, lm_loss: 9.763, perplexity: 17373.129
I0422 13:14:20.495886 140367654737728 metric_logger.py:196] completed step: 3, seconds: 0.430, TFLOP/s/device: 7.894, Tokens/s/device: 1189.868, total_weights: 16384, loss: 8.823, lm_loss: 8.823, perplexity: 6791.817
I0422 13:14:20.613210 140367654737728 metric_logger.py:196] completed step: 4, seconds: 0.064, TFLOP/s/device: 53.348, Tokens/s/device: 8041.211, total_weights: 16384, loss: 7.947, lm_loss: 7.947, perplexity: 2828.417
I0422 13:14:20.619009 140367654737728 metric_logger.py:196] completed step: 5, seconds: 0.058, TFLOP/s/device: 58.239, Tokens/s/device: 8778.397, total_weights: 16384, loss: 7.212, lm_loss: 7.212, perplexity: 1355.339
I0422 13:14:23.332872    2521 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0422 13:14:26.153626 140239599298304 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_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints/0/items/array_metadatas/process_5
I0422 13:14:34.944579 140367654737728 metric_logger.py:196] completed step: 6, seconds: 0.118, TFLOP/s/device: 28.831, Tokens/s/device: 4345.686, total_weights: 16384, loss: 6.652, lm_loss: 6.652, perplexity: 774.659
I0422 13:14:35.002847 140367654737728 metric_logger.py:196] completed step: 7, seconds: 14.268, TFLOP/s/device: 0.238, Tokens/s/device: 35.885, total_weights: 16384, loss: 6.269, lm_loss: 6.269, perplexity: 527.696
I0422 13:14:35.061342 140367654737728 metric_logger.py:196] completed step: 8, seconds: 0.063, TFLOP/s/device: 53.905, Tokens/s/device: 8125.179, total_weights: 16384, loss: 6.031, lm_loss: 6.031, perplexity: 416.165
I0422 13:14:35.119088 140367654737728 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0422 13:14:35.119606 140367654737728 checkpointing.py:798] Waited 0.0005335807800292969 seconds for step 9 to finish before starting checkpointing.
I0422 13:14:35.122885 140367654737728 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 13:14:56.470098 140240090621696 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 42.515 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 37.15356159210205 s) (per-host)
I0422 13:14:56.470205 140240090621696 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.880158s.
I0422 13:15:06.085543 140240090621696 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 46.495480s.
I0422 13:15:06.085861 140239590905600 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 13:15:06.086015 140239590905600 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0422 13:15:06.086070 140239590905600 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0422 13:15:06.087640 140239590905600 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0422 13:15:06.087854 140367654737728 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 13:15:06.087985 140367654737728 checkpoint_manager.py:1452] Waiting for previous save to complete took 30.965100 seconds. If this number is high, consider checkpointing less frequently.
I0422 13:15:06.089817 140367654737728 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0422 13:15:06.091876 140367654737728 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints/9.
I0422 13:15:06.377706 140367654737728 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0422 13:15:06.377799 140367654737728 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 13:15:06.402517 140367654737728 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.025892s
I0422 13:15:06.402643 140367654737728 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 52.194 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.02955460548400879 s) (per-host)
I0422 13:15:06.402705 140367654737728 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.029625s (batch_requests_ready=0.001992s, total_serialization_initiated=0.027558s, others=0.000075s)
I0422 13:15:06.402783 140367654737728 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.033670s (all_items=0.000017s, per_item={'items': '0.00001669'}, temp_paths=0.033653)
I0422 13:15:06.403487 140367654737728 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.31 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints/9.
I0422 13:15:06.403799 140233123276544 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 13:35:06.403777
I0422 13:15:06.408542 140367654737728 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 13:15:06.408814 140239590905600 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0422 13:15:06.408973 140367654737728 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776863675.1228557, 'wait_for_prev_duration_secs': 30.965100288391113, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776863706.0898557, 'checkpointer_blocking_duration_secs': 0.3140420913696289, 'get_old_steps_start_time': 1776863706.4039202, 'get_old_steps_duration_secs': 3.0279159545898438e-05, 'checkpoint_manager_blocking_start_time': 1776863675.1198459, 'checkpoint_manager_blocking_duration_secs': 31.289092540740967}
I0422 13:15:06.409083 140367654737728 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0422 13:15:06.409129 140367654737728 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 13:15:11.854687 140233114883840 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_20260422_123906/linen_xpk_feat_nnx_post_train_fixes_20260422_123906_09_pdb_lt_1/checkpoints/9/items/array_metadatas/process_5
I0422 13:15:48.088850 140233123276544 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 37.866 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 41.71572303771973 s) (per-host)
I0422 13:15:48.088956 140233123276544 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 41.685081s.
I0422 13:15:55.895950 140233123276544 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 49.492057s.
I0422 13:15:55.896236 140239590905600 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 13:15:55.896363 140239590905600 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0422 13:15:55.896412 140239590905600 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0422 13:15:55.897805 140239590905600 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0422 13:15:55.897984 140367654737728 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 13:15:55.898125 140367654737728 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 13:15:55.899178 140367654737728 metric_logger.py:196] completed step: 9, seconds: 0.058, TFLOP/s/device: 58.455, Tokens/s/device: 8811.028, total_weights: 16384, loss: 5.892, lm_loss: 5.892, perplexity: 361.955
Per train step:
 Total TFLOPs: 3.40 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Wed Apr 22 13:16:07 UTC 2026
EXIT_CODE=0