XPK Start: Tue Apr 21 14:50:59 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.
2026-04-21 14:51:24.946617: 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)
I0421 14:51:25.158915 139786947749696 max_utils.py:273] Attempting to initialize the jax distributed system...
I0421 14:51:34.200523 139786947749696 distributed.py:149] Starting JAX distributed service on [::]:8482
I0421 14:51:34.202889 139786947749696 distributed.py:172] Connecting to JAX distributed service on mt-03-dropout-mtie8-slice-job-0-0.mt-03-dropout-mtie8:8482
I0421 14:51:35.320002 139786947749696 max_utils.py:284] Jax distributed system initialized!
I0421 14:51:41.232397 139786947749696 max_utils.py:800] System Information: Jax Version: 0.9.2
I0421 14:51:41.232505 139786947749696 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0421 14:51:41.232543 139786947749696 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
I0421 14:51:41.232577 139786947749696 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0421 14:51:41.924643 139786947749696 maxtext_utils.py:1565] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0421 14:51:41.924947 139786947749696 checkpointing.py:677] Setting up checkpoint logger...
I0421 14:51:41.925002 139786947749696 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0421 14:51:41.925053 139786947749696 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0421 14:51:41.925391 139786947749696 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 0x7f21f7b1f680>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0421 14:51:44.831243 139786947749696 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0421 14:51:44.831482 139786947749696 checkpoint_manager.py:708] [process=7][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f0dc87635f0>}, handler_registry=None
I0421 14:51:44.831720 139786947749696 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f0dc87635f0>` 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`.
I0421 14:51:44.831784 139786947749696 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f0dc8766db0>` 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`.
I0421 14:51:44.831820 139786947749696 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 0x7f0dc87635f0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f0dc87635f0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f0dc8766db0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f0dc8766db0>}).
I0421 14:51:44.832149 139786947749696 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0421 14:51:44.832218 139786947749696 async_checkpointer.py:192] [process=7][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7f0ccc375620> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0421 14:51:46.384777 139786947749696 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints
I0421 14:51:46.387150 139786947749696 checkpoint_manager.py:929] [process=7][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_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7f0dc8766240>
I0421 14:51:46.387263 139786947749696 checkpointing.py:301] Checkpoint manager created!
I0421 14:51:46.732313 139786947749696 nnx_wrappers.py:437] Unknown Logical: bfloat16[32,128,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0421 14:51:46.732432 139786947749696 nnx_wrappers.py:437] Unknown Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None).
I0421 14:51:47.116168 139786947749696 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,128,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0421 14:51:47.116262 139786947749696 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None).
I0421 14:51:47.132636 139786947749696 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,128,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0421 14:51:47.132698 139786947749696 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,128,2048]....................................... ('fsdp', None, None).
I0421 14:51:47.156695 139786947749696 attentions.py:1154] attentions/query Logical: bfloat16[32,128,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0421 14:51:47.156778 139786947749696 attentions.py:1154] attentions/query Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None).
I0421 14:51:47.173211 139786947749696 attentions.py:1155] attentions/key Logical: bfloat16[32,128,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0421 14:51:47.173270 139786947749696 attentions.py:1155] attentions/key Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None).
I0421 14:51:47.189685 139786947749696 attentions.py:1156] attentions/value Logical: bfloat16[32,128,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0421 14:51:47.189761 139786947749696 attentions.py:1156] attentions/value Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None).
I0421 14:51:47.214714 139786947749696 attentions.py:1198] attentions/out Logical: bfloat16[32,128,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0421 14:51:47.214807 139786947749696 attentions.py:1198] attentions/out Physical: bfloat16[32,128,16,128]..................................... ('fsdp', None, None, None).
I0421 14:51:47.241312 139786947749696 linears.py:525] linears/x Logical: bfloat16[32,128,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0421 14:51:47.241382 139786947749696 linears.py:525] linears/x Physical: bfloat16[32,128,7168]....................................... ('fsdp', None, None).
I0421 14:51:47.460427 139786947749696 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0421 14:51:47.460541 139786947749696 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0421 14:51:48.897770 139786947749696 maxtext_utils.py:1668] params/params/decoder/decoder_norm/scale
Shape: float32[2048]
Logical: P('norm',)
Physical: (None,)
I0421 14:51:48.897908 139786947749696 maxtext_utils.py:1668] params/params/decoder/layers/mlp/wi_0/kernel
Shape: float32[2048,16,7168]
Logical: P('embed', 'layers', 'mlp')
Physical: ('fsdp', None, None)
I0421 14:51:48.897964 139786947749696 maxtext_utils.py:1668] params/params/decoder/layers/mlp/wi_1/kernel
Shape: float32[2048,16,7168]
Logical: P('embed', 'layers', 'mlp')
Physical: ('fsdp', None, None)
I0421 14:51:48.898029 139786947749696 maxtext_utils.py:1668] params/params/decoder/layers/mlp/wo/kernel
Shape: float32[7168,16,2048]
Logical: P('mlp', 'layers', 'embed')
Physical: (None, None, 'fsdp')
I0421 14:51:48.898081 139786947749696 maxtext_utils.py:1668] params/params/decoder/layers/post_self_attention_layer_norm/scale
Shape: float32[2048,16]
Logical: P('norm', 'layers')
Physical: (None, None)
I0421 14:51:48.898119 139786947749696 maxtext_utils.py:1668] params/params/decoder/layers/pre_self_attention_layer_norm/scale
Shape: float32[2048,16]
Logical: P('norm', 'layers')
Physical: (None, None)
I0421 14:51:48.898170 139786947749696 maxtext_utils.py:1668] 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)
I0421 14:51:48.898223 139786947749696 maxtext_utils.py:1668] 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')
I0421 14:51:48.898263 139786947749696 maxtext_utils.py:1668] 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)
I0421 14:51:48.898300 139786947749696 maxtext_utils.py:1668] 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)
I0421 14:51:48.898346 139786947749696 maxtext_utils.py:1668] params/params/decoder/logits_dense/kernel
Shape: float32[2048,32000]
Logical: P('embed_vocab', 'vocab')
Physical: ('fsdp', None)
I0421 14:51:48.898394 139786947749696 maxtext_utils.py:1668] params/params/token_embedder/embedding
Shape: float32[32000,2048]
Logical: P('vocab', 'embed_vocab')
Physical: (None, 'fsdp')
I0421 14:51:49.422423 139786947749696 train.py:155] train/xent Logical: float32[32,128]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0421 14:51:49.422515 139786947749696 train.py:155] train/xent Physical: float32[32,128]............................................. ('fsdp', None).
I0421 14:51:49.438939 139786947749696 train.py:162] train/z_loss Logical: float32[32,128]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0421 14:51:49.439004 139786947749696 train.py:162] train/z_loss Physical: float32[32,128]............................................. ('fsdp', None).
I0421 14:51:53.113110 139786947749696 max_utils.py:791] Total memory size: 0.8 GB, Output size: 0.4 GB, Temp size: 0.4 GB, Argument size: 0.4 GB, Host temp size: 0.0 GB.
I0421 14:51:53.113863 139786947749696 metric_logger.py:301] number parameters: 1.104 billion
I0421 14:51:57.696974 139786947749696 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0421 14:51:57.770582 139786947749696 checkpointing.py:776] Waited 0.07359766960144043 seconds for step 0 to finish before starting checkpointing.
I0421 14:51:57.773052 139786947749696 checkpoint_manager.py:2009] [process=7][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0421 14:51:57.774877 139786947749696 checkpoint_manager.py:1512] [process=7] Saving checkpoint at step 0
I0421 14:51:57.776359 139786947749696 event_tracking.py:70] [process=7] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints/0.
I0421 14:51:58.071287 139786947749696 signaling_client.py:364] Using JaxDistributedSignalingClient
I0421 14:51:58.072254 139786947749696 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0421 14:51:58.072310 139786947749696 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
I0421 14:51:58.347460 139786947749696 base_pytree_checkpoint_handler.py:154] [process=7][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.276249s
I0421 14:51:58.347638 139786947749696 base_pytree_checkpoint_handler.py:130] [process=7] /jax/orbax/write/blocking_gbytes_per_sec: 5.466 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.2822105884552002 s) (per-host)
I0421 14:51:58.347691 139786947749696 base_pytree_checkpoint_handler.py:768] [process=7][thread=MainThread] Initiated Pytree async_save. Time taken: 0.282274s (batch_requests_ready=0.002522s, total_serialization_initiated=0.279681s, others=0.000072s)
I0421 14:51:58.347804 139786947749696 composite_checkpoint_handler.py:715] [process=7][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.286505s (all_items=0.000019s, per_item={'items': '0.00001931'}, temp_paths=0.286486)
I0421 14:51:58.348587 139786947749696 event_tracking.py:125] [process=7] [async] Finished blocking save in 0.57 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints/0.
I0421 14:51:58.348938 139659308951296 async_checkpointer.py:76] [process=7][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-21 15:11:58.348901
I0421 14:51:58.362489 139786947749696 checkpoint_manager.py:1560] [process=7][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0421 14:51:58.362832 139656632989440 async_checkpointer.py:280] [process=7][thread=save_finalize] Waiting for background save thread=async_save.
I0421 14:51:58.362991 139786947749696 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776783117.773034, 'wait_for_prev_duration_secs': 6.222724914550781e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776783117.7749152, 'checkpointer_blocking_duration_secs': 0.5741751194000244, 'get_old_steps_start_time': 1776783118.3491144, 'get_old_steps_duration_secs': 3.123283386230469e-05, 'checkpoint_manager_blocking_start_time': 1776783117.7711353, 'checkpoint_manager_blocking_duration_secs': 0.5918171405792236}
I0421 14:51:58.363101 139786947749696 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0421 14:51:58.363151 139786947749696 max_utils.py:750]
Memstats: After params initialized:
I0421 14:51:58.363205 139786947749696 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_26(process=7,(2,6,0,0))
I0421 14:51:58.363237 139786947749696 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_27(process=7,(3,6,0,0))
I0421 14:51:58.363265 139786947749696 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_30(process=7,(2,7,0,0))
I0421 14:51:58.363291 139786947749696 max_utils.py:756] Using (GB) 0.41 / 31.25 (1.312000%) on TPU_31(process=7,(3,7,0,0))
I0421 14:51:58.674620 139786947749696 metric_logger.py:196] completed step: 0, seconds: 4.583, TFLOP/s/device: 0.175, Tokens/s/device: 27.929, total_weights: 4096, loss: 10.889, lm_loss: 10.889, perplexity: 53560.699
I0421 14:51:58.773658 139786947749696 metric_logger.py:196] completed step: 1, seconds: 0.976, TFLOP/s/device: 0.821, Tokens/s/device: 131.138, total_weights: 4096, loss: 10.902, lm_loss: 10.902, perplexity: 54298.523
I0421 14:51:59.170352 139786947749696 metric_logger.py:196] completed step: 2, seconds: 0.029, TFLOP/s/device: 27.256, Tokens/s/device: 4356.112, total_weights: 4096, loss: 9.956, lm_loss: 9.956, perplexity: 21082.051
I0421 14:51:59.241425 139786947749696 metric_logger.py:196] completed step: 3, seconds: 0.397, TFLOP/s/device: 2.019, Tokens/s/device: 322.633, total_weights: 4096, loss: 9.139, lm_loss: 9.139, perplexity: 9314.691
I0421 14:51:59.383185 139786947749696 metric_logger.py:196] completed step: 4, seconds: 0.076, TFLOP/s/device: 10.577, Tokens/s/device: 1690.416, total_weights: 4096, loss: 8.459, lm_loss: 8.459, perplexity: 4715.493
I0421 14:51:59.389033 139786947749696 metric_logger.py:196] completed step: 5, seconds: 0.071, TFLOP/s/device: 11.290, Tokens/s/device: 1804.393, total_weights: 4096, loss: 7.924, lm_loss: 7.924, perplexity: 2762.373
I0421 14:52:01.222126 2799 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0421 14:52:03.760993 139658229012224 array_metadata_store.py:203] [process=7][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints/0/items/array_metadatas/process_7
I0421 14:52:08.934128 139786947749696 metric_logger.py:196] completed step: 6, seconds: 0.142, TFLOP/s/device: 5.630, Tokens/s/device: 899.862, total_weights: 4096, loss: 7.553, lm_loss: 7.553, perplexity: 1906.617
I0421 14:52:09.004926 139786947749696 metric_logger.py:196] completed step: 7, seconds: 9.476, TFLOP/s/device: 0.085, Tokens/s/device: 13.508, total_weights: 4096, loss: 7.267, lm_loss: 7.267, perplexity: 1431.653
I0421 14:52:09.075461 139786947749696 metric_logger.py:196] completed step: 8, seconds: 0.075, TFLOP/s/device: 10.715, Tokens/s/device: 1712.581, total_weights: 4096, loss: 7.111, lm_loss: 7.111, perplexity: 1225.983
I0421 14:52:09.145622 139786947749696 checkpointing.py:772] Waiting for step 9 to finish before checkpoint...
I0421 14:52:09.146220 139786947749696 checkpointing.py:776] Waited 0.0006148815155029297 seconds for step 9 to finish before starting checkpointing.
I0421 14:52:09.148188 139786947749696 checkpoint_manager.py:2020] [process=7][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0421 14:52:31.447035 139659308951296 base_pytree_checkpoint_handler.py:130] [process=7] /jax/orbax/write/gbytes_per_sec: 47.319 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 33.38157272338867 s) (per-host)
I0421 14:52:31.447152 139659308951296 async_checkpointer.py:90] [process=7][thread=async_save] 3 Handler Commit operations completed. Time taken: 33.098103s.
I0421 14:52:42.884317 139659308951296 async_checkpointer.py:160] [process=7][thread=async_save] Background save thread done. Time taken: 44.535251s.
I0421 14:52:42.884633 139656632989440 async_checkpointer.py:288] [process=7][thread=save_finalize] Done with waiting for background save thread=async_save.
I0421 14:52:42.884765 139656632989440 async_checkpointer.py:298] [process=7][thread=save_finalize] No errors found in background save thread=async_save.
I0421 14:52:42.884826 139656632989440 checkpoint_manager.py:2137] [process=7][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0421 14:52:42.886343 139656632989440 checkpoint_manager.py:2146] [process=7][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0421 14:52:42.886465 139786947749696 checkpoint_manager.py:2032] [process=7][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0.
W0421 14:52:42.886532 139786947749696 checkpoint_manager.py:1452] Waiting for previous save to complete took 33.738351 seconds. If this number is high, consider checkpointing less frequently.
I0421 14:52:42.888463 139786947749696 checkpoint_manager.py:1512] [process=7] Saving checkpoint at step 9
I0421 14:52:42.890555 139786947749696 event_tracking.py:70] [process=7] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints/9.
I0421 14:52:43.609527 139786947749696 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0421 14:52:43.609621 139786947749696 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
I0421 14:52:43.644794 139786947749696 base_pytree_checkpoint_handler.py:154] [process=7][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.036433s
I0421 14:52:43.644966 139786947749696 base_pytree_checkpoint_handler.py:130] [process=7] /jax/orbax/write/blocking_gbytes_per_sec: 38.471 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.04009699821472168 s) (per-host)
I0421 14:52:43.645014 139786947749696 base_pytree_checkpoint_handler.py:768] [process=7][thread=MainThread] Initiated Pytree async_save. Time taken: 0.040155s (batch_requests_ready=0.001984s, total_serialization_initiated=0.038105s, others=0.000066s)
I0421 14:52:43.645102 139786947749696 composite_checkpoint_handler.py:715] [process=7][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.044282s (all_items=0.000015s, per_item={'items': '0.00001526'}, temp_paths=0.044267)
I0421 14:52:43.645771 139786947749696 event_tracking.py:125] [process=7] [async] Finished blocking save in 0.76 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints/9.
I0421 14:52:43.646029 139656632989440 async_checkpointer.py:76] [process=7][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-21 15:12:43.646008
I0421 14:52:43.655632 139786947749696 checkpoint_manager.py:1560] [process=7][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0421 14:52:43.655915 139658229012224 async_checkpointer.py:280] [process=7][thread=save_finalize] Waiting for background save thread=async_save.
I0421 14:52:43.656113 139786947749696 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776783129.1481566, 'wait_for_prev_duration_secs': 33.73835062980652, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776783162.888501, 'checkpointer_blocking_duration_secs': 0.7576212882995605, 'get_old_steps_start_time': 1776783163.6461408, 'get_old_steps_duration_secs': 2.9802322387695312e-05, 'checkpoint_manager_blocking_start_time': 1776783129.1464436, 'checkpoint_manager_blocking_duration_secs': 34.50963234901428}
I0421 14:52:43.656220 139786947749696 checkpointing.py:408] Started an asynchronous checkpoint save for step 9
I0421 14:52:43.656262 139786947749696 checkpoint_manager.py:2020] [process=7][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0421 14:52:49.217668 139651896633088 array_metadata_store.py:203] [process=7][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_main_20260421_144122/linen_xpk_main_20260421_144122_03_dropout/checkpoints/9/items/array_metadatas/process_7
I0421 14:53:24.949755 139656632989440 base_pytree_checkpoint_handler.py:130] [process=7] /jax/orbax/write/gbytes_per_sec: 38.205 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 41.34483051300049 s) (per-host)
I0421 14:53:24.949890 139656632989440 async_checkpointer.py:90] [process=7][thread=async_save] 3 Handler Commit operations completed. Time taken: 41.303790s.
I0421 14:53:32.896052 139656632989440 async_checkpointer.py:160] [process=7][thread=async_save] Background save thread done. Time taken: 49.249937s.
I0421 14:53:32.896369 139658229012224 async_checkpointer.py:288] [process=7][thread=save_finalize] Done with waiting for background save thread=async_save.
I0421 14:53:32.896487 139658229012224 async_checkpointer.py:298] [process=7][thread=save_finalize] No errors found in background save thread=async_save.
I0421 14:53:32.896545 139658229012224 checkpoint_manager.py:2137] [process=7][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0421 14:53:32.898864 139658229012224 checkpoint_manager.py:2146] [process=7][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0421 14:53:32.898994 139786947749696 checkpoint_manager.py:2032] [process=7][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9.
I0421 14:53:32.899095 139786947749696 checkpoint_manager.py:2009] [process=7][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0421 14:53:32.900101 139786947749696 metric_logger.py:196] completed step: 9, seconds: 0.071, TFLOP/s/device: 11.317, Tokens/s/device: 1808.753, total_weights: 4096, loss: 6.981, lm_loss: 6.981, perplexity: 1075.867
Per train step:
Total TFLOPs: 0.80
split as 99.60% learnable weight flops and 0.40% attention flops
XPK End: Tue Apr 21 14:53:45 UTC 2026
EXIT_CODE=0