XPK Start: Fri Apr 24 20:17:41 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.
2026-04-24 20:18:06.540229: 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)
I0424 20:18:06.749979 132140008367936 max_utils.py:273] Attempting to initialize the jax distributed system...
I0424 20:18:15.792033 132140008367936 distributed.py:149] Starting JAX distributed service on [::]:8482
I0424 20:18:15.794334 132140008367936 distributed.py:172] Connecting to JAX distributed service on mt-04-int8-k0qkw-slice-job-0-0.mt-04-int8-k0qkw:8482
I0424 20:18:17.185008 132140008367936 max_utils.py:284] Jax distributed system initialized!
I0424 20:18:23.383299 132140008367936 max_utils.py:800] System Information: Jax Version: 0.9.2
I0424 20:18:23.383407 132140008367936 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0424 20:18:23.383446 132140008367936 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
I0424 20:18:23.383480 132140008367936 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0424 20:18:24.072884 132140008367936 maxtext_utils.py:1565] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0424 20:18:24.073287 132140008367936 checkpointing.py:677] Setting up checkpoint logger...
I0424 20:18:24.073346 132140008367936 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0424 20:18:24.073390 132140008367936 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0424 20:18:24.073749 132140008367936 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 0x782db294e6c0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0424 20:18:27.374792 132140008367936 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0424 20:18:27.375039 132140008367936 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 0x7819883d7da0>}, handler_registry=None
I0424 20:18:27.375277 132140008367936 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7819883d7da0>` 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`.
I0424 20:18:27.375326 132140008367936 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7819881ac0e0>` 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`.
I0424 20:18:27.375362 132140008367936 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 0x7819883d7da0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7819883d7da0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7819881ac0e0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7819881ac0e0>}).
I0424 20:18:27.375709 132140008367936 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0424 20:18:27.375780 132140008367936 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x781963ee7560> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0424 20:18:28.053669 132140008367936 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints
I0424 20:18:28.493167 132140008367936 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_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7819881aa690>
I0424 20:18:28.493336 132140008367936 checkpointing.py:301] Checkpoint manager created!
I0424 20:18:29.657418 132140008367936 nnx_wrappers.py:453] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0424 20:18:29.657534 132140008367936 nnx_wrappers.py:453] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0424 20:18:30.047080 132140008367936 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0424 20:18:30.047170 132140008367936 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0424 20:18:30.063732 132140008367936 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0424 20:18:30.063787 132140008367936 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0424 20:18:30.129557 132140008367936 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0424 20:18:30.129645 132140008367936 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0424 20:18:30.146234 132140008367936 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0424 20:18:30.146291 132140008367936 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0424 20:18:30.162900 132140008367936 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0424 20:18:30.162959 132140008367936 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0424 20:18:30.188143 132140008367936 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0424 20:18:30.188217 132140008367936 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0424 20:18:30.254016 132140008367936 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0424 20:18:30.254098 132140008367936 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0424 20:18:30.759599 132140008367936 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0424 20:18:30.759722 132140008367936 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0424 20:18:33.205120 132140008367936 maxtext_utils.py:1668] params/params/decoder/decoder_norm/scale
Shape: float32[2048]
Logical: P('norm',)
Physical: (None,)
I0424 20:18:33.205249 132140008367936 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)
I0424 20:18:33.205303 132140008367936 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)
I0424 20:18:33.205361 132140008367936 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')
I0424 20:18:33.205415 132140008367936 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)
I0424 20:18:33.205454 132140008367936 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)
I0424 20:18:33.205505 132140008367936 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)
I0424 20:18:33.205558 132140008367936 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')
I0424 20:18:33.205599 132140008367936 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)
I0424 20:18:33.205634 132140008367936 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)
I0424 20:18:33.205696 132140008367936 maxtext_utils.py:1668] params/params/decoder/logits_dense/kernel
Shape: float32[2048,32000]
Logical: P('embed_vocab', 'vocab')
Physical: ('fsdp', None)
I0424 20:18:33.205749 132140008367936 maxtext_utils.py:1668] params/params/token_embedder/embedding
Shape: float32[32000,2048]
Logical: P('vocab', 'embed_vocab')
Physical: (None, 'fsdp')
I0424 20:18:34.584276 132140008367936 train.py:155] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0424 20:18:34.584369 132140008367936 train.py:155] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0424 20:18:34.600037 132140008367936 train.py:162] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0424 20:18:34.600095 132140008367936 train.py:162] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0424 20:18:48.621087 132140008367936 max_utils.py:791] Total memory size: 1.8 GB, Output size: 0.4 GB, Temp size: 1.4 GB, Argument size: 0.4 GB, Host temp size: 0.0 GB.
I0424 20:18:48.621880 132140008367936 metric_logger.py:301] number parameters: 1.104 billion
I0424 20:19:03.152578 132140008367936 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0424 20:19:03.395618 132140008367936 checkpointing.py:776] Waited 0.24302244186401367 seconds for step 0 to finish before starting checkpointing.
I0424 20:19:03.399708 132140008367936 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0424 20:19:03.401102 132140008367936 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0424 20:19:03.402706 132140008367936 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints/0.
I0424 20:19:03.741759 132140008367936 signaling_client.py:364] Using JaxDistributedSignalingClient
I0424 20:19:03.742726 132140008367936 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0424 20:19:03.742783 132140008367936 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
I0424 20:19:04.018082 132140008367936 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.276398s
I0424 20:19:04.018256 132140008367936 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.469 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.28204870223999023 s) (per-host)
I0424 20:19:04.018310 132140008367936 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.282112s (batch_requests_ready=0.002198s, total_serialization_initiated=0.279842s, others=0.000072s)
I0424 20:19:04.018429 132140008367936 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.286275s (all_items=0.000018s, per_item={'items': '0.00001812'}, temp_paths=0.286257)
I0424 20:19:04.019267 132140008367936 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.62 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints/0.
I0424 20:19:04.019605 132008898455296 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-24 20:39:04.019566
I0424 20:19:04.029312 132140008367936 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0424 20:19:04.029621 132006893582080 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0424 20:19:04.029793 132140008367936 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777061943.3996885, 'wait_for_prev_duration_secs': 6.461143493652344e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777061943.401141, 'checkpointer_blocking_duration_secs': 0.6185765266418457, 'get_old_steps_start_time': 1777061944.0197413, 'get_old_steps_duration_secs': 3.0517578125e-05, 'checkpoint_manager_blocking_start_time': 1777061943.396184, 'checkpoint_manager_blocking_duration_secs': 0.6335701942443848}
I0424 20:19:04.029903 132140008367936 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0424 20:19:04.029957 132140008367936 max_utils.py:750]
Memstats: After params initialized:
I0424 20:19:04.030004 132140008367936 max_utils.py:756] Using (GB) 0.44 / 31.25 (1.408000%) on TPU_18(process=5,(2,4,0,0))
I0424 20:19:04.030035 132140008367936 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_19(process=5,(3,4,0,0))
I0424 20:19:04.030062 132140008367936 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_22(process=5,(2,5,0,0))
I0424 20:19:04.030087 132140008367936 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_23(process=5,(3,5,0,0))
I0424 20:19:04.358342 132140008367936 metric_logger.py:196] completed step: 0, seconds: 14.531, TFLOP/s/device: 0.935, Tokens/s/device: 140.944, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52796.277
I0424 20:19:04.612035 132140008367936 metric_logger.py:196] completed step: 1, seconds: 1.204, TFLOP/s/device: 11.283, Tokens/s/device: 1700.707, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52796.277
I0424 20:19:05.020191 132140008367936 metric_logger.py:196] completed step: 2, seconds: 0.025, TFLOP/s/device: 551.113, Tokens/s/device: 83069.684, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28634.820
I0424 20:19:05.249627 132140008367936 metric_logger.py:196] completed step: 3, seconds: 0.409, TFLOP/s/device: 33.258, Tokens/s/device: 5013.010, total_weights: 65536, loss: 9.731, lm_loss: 9.731, perplexity: 16827.199
I0424 20:19:05.708997 132140008367936 metric_logger.py:196] completed step: 4, seconds: 0.235, TFLOP/s/device: 57.934, Tokens/s/device: 8732.396, total_weights: 65536, loss: 9.272, lm_loss: 9.272, perplexity: 10638.531
I0424 20:19:05.714640 132140008367936 metric_logger.py:196] completed step: 5, seconds: 0.229, TFLOP/s/device: 59.244, Tokens/s/device: 8929.934, total_weights: 65536, loss: 8.887, lm_loss: 8.887, perplexity: 7233.941
I0424 20:19:06.928202 2963 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0424 20:19:08.977878 132007374190336 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints/0/items/array_metadatas/process_5
I0424 20:19:35.088311 132140008367936 metric_logger.py:196] completed step: 6, seconds: 0.460, TFLOP/s/device: 29.551, Tokens/s/device: 4454.217, total_weights: 65536, loss: 8.588, lm_loss: 8.588, perplexity: 5365.468
I0424 20:19:35.317781 132140008367936 metric_logger.py:196] completed step: 7, seconds: 29.145, TFLOP/s/device: 0.466, Tokens/s/device: 70.268, total_weights: 65536, loss: 8.380, lm_loss: 8.380, perplexity: 4358.779
I0424 20:19:35.547121 132140008367936 metric_logger.py:196] completed step: 8, seconds: 0.233, TFLOP/s/device: 58.195, Tokens/s/device: 8771.855, total_weights: 65536, loss: 8.251, lm_loss: 8.251, perplexity: 3831.453
I0424 20:19:35.739361 132008898455296 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 49.358 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 32.00311255455017 s) (per-host)
I0424 20:19:35.739469 132008898455296 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 31.719225s.
I0424 20:19:35.775813 132140008367936 checkpointing.py:772] Waiting for step 9 to finish before checkpoint...
I0424 20:19:35.776447 132140008367936 checkpointing.py:776] Waited 0.0006530284881591797 seconds for step 9 to finish before starting checkpointing.
I0424 20:19:35.778684 132140008367936 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0424 20:19:44.546487 132008898455296 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 40.526226s.
I0424 20:19:44.546787 132006893582080 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0424 20:19:44.546906 132006893582080 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0424 20:19:44.546955 132006893582080 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0424 20:19:44.549431 132006893582080 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0424 20:19:44.549599 132140008367936 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.
W0424 20:19:44.549759 132140008367936 checkpoint_manager.py:1452] Waiting for previous save to complete took 8.771089 seconds. If this number is high, consider checkpointing less frequently.
I0424 20:19:44.552096 132140008367936 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0424 20:19:44.554136 132140008367936 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints/9.
I0424 20:19:44.853507 132140008367936 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0424 20:19:44.853599 132140008367936 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
I0424 20:19:44.889518 132140008367936 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.037129s
I0424 20:19:44.889674 132140008367936 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 38.076 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.040512800216674805 s) (per-host)
I0424 20:19:44.889724 132140008367936 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.040584s (batch_requests_ready=0.001757s, total_serialization_initiated=0.038749s, others=0.000077s)
I0424 20:19:44.889815 132140008367936 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.044719s (all_items=0.000015s, per_item={'items': '0.00001550'}, temp_paths=0.044703)
I0424 20:19:44.890524 132140008367936 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.34 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints/9.
I0424 20:19:44.890881 132006893582080 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-24 20:39:44.890845
I0424 20:19:44.892781 132140008367936 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0424 20:19:44.893046 131984093251328 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0424 20:19:44.893209 132140008367936 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777061975.7786388, 'wait_for_prev_duration_secs': 8.771089315414429, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777061984.5521328, 'checkpointer_blocking_duration_secs': 0.33889150619506836, 'get_old_steps_start_time': 1777061984.8910487, 'get_old_steps_duration_secs': 3.0517578125e-05, 'checkpoint_manager_blocking_start_time': 1777061975.7766845, 'checkpoint_manager_blocking_duration_secs': 9.116487264633179}
I0424 20:19:44.893320 132140008367936 checkpointing.py:408] Started an asynchronous checkpoint save for step 9
I0424 20:19:44.893364 132140008367936 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0424 20:19:50.488754 132007374190336 array_metadata_store.py:203] [process=5][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_04_int8/checkpoints/9/items/array_metadatas/process_5
I0424 20:20:25.833642 132006893582080 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 38.541 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 40.98443055152893 s) (per-host)
I0424 20:20:25.833784 132006893582080 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 40.942786s.
I0424 20:20:34.445535 132006893582080 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 49.554522s.
I0424 20:20:34.445850 131984093251328 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0424 20:20:34.445971 131984093251328 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0424 20:20:34.446017 131984093251328 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0424 20:20:34.447559 131984093251328 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0424 20:20:34.447754 132140008367936 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.
I0424 20:20:34.447911 132140008367936 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0424 20:20:34.448741 132140008367936 metric_logger.py:196] completed step: 9, seconds: 0.229, TFLOP/s/device: 59.231, Tokens/s/device: 8927.988, total_weights: 65536, loss: 8.175, lm_loss: 8.175, perplexity: 3552.333
Per train step:
Total TFLOPs: 13.59
split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Fri Apr 24 20:20:46 UTC 2026
EXIT_CODE=0