XPK Start: Wed Apr 22 21:58:52 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 21:59:17.261821: 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 21:59:17.479254 132974282049344 max_utils.py:273] Attempting to initialize the jax distributed system...
I0422 21:59:26.518775 132974282049344 distributed.py:149] Starting JAX distributed service on [::]:8482
I0422 21:59:26.521283 132974282049344 distributed.py:172] Connecting to JAX distributed service on mt-10-shardy-true-jrygo-slice-job-0-0.mt-10-shardy-true-jrygo:8482
I0422 21:59:28.004726 132974282049344 max_utils.py:284] Jax distributed system initialized!
I0422 21:59:34.075228 132974282049344 max_utils.py:800] System Information: Jax Version: 0.9.2
I0422 21:59:34.075335 132974282049344 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0422 21:59:34.075375 132974282049344 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 21:59:34.075410 132974282049344 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0422 21:59:34.779069 132974282049344 maxtext_utils.py:1565] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0422 21:59:34.779344 132974282049344 checkpointing.py:677] Setting up checkpoint logger...
I0422 21:59:34.779397 132974282049344 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0422 21:59:34.779440 132974282049344 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0422 21:59:34.779786 132974282049344 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 0x78efe6518050>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0422 21:59:37.646206 132974282049344 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0422 21:59:37.646438 132974282049344 checkpoint_manager.py:708] [process=3][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x78db706b1970>}, handler_registry=None
I0422 21:59:37.646677 132974282049344 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x78db706b1970>` 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 21:59:37.646728 132974282049344 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78db706b71a0>` 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 21:59:37.646763 132974282049344 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 0x78db706b1970>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x78db706b1970>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78db706b71a0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x78db706b71a0>}).
I0422 21:59:37.647104 132974282049344 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0422 21:59:37.647174 132974282049344 async_checkpointer.py:192] [process=3][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x78db587a3420> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0422 21:59:39.198004 132974282049344 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints
I0422 21:59:39.642999 132974282049344 checkpoint_manager.py:929] [process=3][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_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x78db706b4da0>
I0422 21:59:39.643175 132974282049344 checkpointing.py:301] Checkpoint manager created!
I0422 21:59:40.576157 132974282049344 nnx_wrappers.py:453] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0422 21:59:40.576274 132974282049344 nnx_wrappers.py:453] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 21:59:40.956251 132974282049344 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 21:59:40.956348 132974282049344 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 21:59:40.973130 132974282049344 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 21:59:40.973191 132974282049344 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 21:59:40.997306 132974282049344 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 21:59:40.997375 132974282049344 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 21:59:41.014129 132974282049344 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 21:59:41.014198 132974282049344 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 21:59:41.030973 132974282049344 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 21:59:41.031036 132974282049344 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 21:59:41.056388 132974282049344 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0422 21:59:41.056457 132974282049344 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 21:59:41.077908 132974282049344 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0422 21:59:41.077990 132974282049344 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0422 21:59:41.292375 132974282049344 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0422 21:59:41.292496 132974282049344 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0422 21:59:42.728350 132974282049344 maxtext_utils.py:1668] params/params/decoder/decoder_norm/scale
Shape: float32[2048]
Logical: P('norm',)
Physical: (None,)
I0422 21:59:42.728477 132974282049344 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)
I0422 21:59:42.728531 132974282049344 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)
I0422 21:59:42.728591 132974282049344 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')
I0422 21:59:42.728649 132974282049344 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)
I0422 21:59:42.728690 132974282049344 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)
I0422 21:59:42.728749 132974282049344 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)
I0422 21:59:42.728801 132974282049344 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')
I0422 21:59:42.728841 132974282049344 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)
I0422 21:59:42.728877 132974282049344 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)
I0422 21:59:42.728938 132974282049344 maxtext_utils.py:1668] params/params/decoder/logits_dense/kernel
Shape: float32[2048,32000]
Logical: P('embed_vocab', 'vocab')
Physical: ('fsdp', None)
I0422 21:59:42.728995 132974282049344 maxtext_utils.py:1668] params/params/token_embedder/embedding
Shape: float32[32000,2048]
Logical: P('vocab', 'embed_vocab')
Physical: (None, 'fsdp')
I0422 21:59:43.236878 132974282049344 train.py:155] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0422 21:59:43.236981 132974282049344 train.py:155] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0422 21:59:43.252842 132974282049344 train.py:162] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0422 21:59:43.252903 132974282049344 train.py:162] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0422 21:59:54.439265 132974282049344 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 21:59:54.440094 132974282049344 metric_logger.py:301] number parameters: 1.104 billion
I0422 22:00:05.716089 132974282049344 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0422 22:00:05.869410 132974282049344 checkpointing.py:776] Waited 0.15330147743225098 seconds for step 0 to finish before starting checkpointing.
I0422 22:00:05.871724 132974282049344 checkpoint_manager.py:2009] [process=3][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 22:00:05.873450 132974282049344 checkpoint_manager.py:1512] [process=3] Saving checkpoint at step 0
I0422 22:00:05.874798 132974282049344 event_tracking.py:70] [process=3] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints/0.
I0422 22:00:06.215485 132974282049344 signaling_client.py:364] Using JaxDistributedSignalingClient
I0422 22:00:06.216344 132974282049344 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0422 22:00:06.216404 132974282049344 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 22:00:06.490861 132974282049344 base_pytree_checkpoint_handler.py:154] [process=3][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.275453s
I0422 22:00:06.491053 132974282049344 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/blocking_gbytes_per_sec: 5.485 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.2812507152557373 s) (per-host)
I0422 22:00:06.491110 132974282049344 base_pytree_checkpoint_handler.py:768] [process=3][thread=MainThread] Initiated Pytree async_save. Time taken: 0.281318s (batch_requests_ready=0.002542s, total_serialization_initiated=0.278701s, others=0.000076s)
I0422 22:00:06.491203 132974282049344 composite_checkpoint_handler.py:715] [process=3][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.285613s (all_items=0.000018s, per_item={'items': '0.00001812'}, temp_paths=0.285595)
I0422 22:00:06.492012 132974282049344 event_tracking.py:125] [process=3] [async] Finished blocking save in 0.62 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints/0.
I0422 22:00:06.492334 132845563619072 async_checkpointer.py:76] [process=3][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 22:20:06.492298
I0422 22:00:06.503119 132974282049344 checkpoint_manager.py:1560] [process=3][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 22:00:06.503425 132842361181952 async_checkpointer.py:280] [process=3][thread=save_finalize] Waiting for background save thread=async_save.
I0422 22:00:06.503591 132974282049344 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776895205.871698, 'wait_for_prev_duration_secs': 6.771087646484375e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776895205.8734884, 'checkpointer_blocking_duration_secs': 0.6189961433410645, 'get_old_steps_start_time': 1776895206.4925113, 'get_old_steps_duration_secs': 3.123283386230469e-05, 'checkpoint_manager_blocking_start_time': 1776895205.8699605, 'checkpoint_manager_blocking_duration_secs': 0.6335911750793457}
I0422 22:00:06.503700 132974282049344 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0422 22:00:06.503750 132974282049344 max_utils.py:750]
Memstats: After params initialized:
I0422 22:00:06.503807 132974282049344 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_10(process=3,(2,2,0,0))
I0422 22:00:06.503841 132974282049344 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_11(process=3,(3,2,0,0))
I0422 22:00:06.503869 132974282049344 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_14(process=3,(2,3,0,0))
I0422 22:00:06.503895 132974282049344 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_15(process=3,(3,3,0,0))
I0422 22:00:06.819748 132974282049344 metric_logger.py:196] completed step: 0, seconds: 11.276, TFLOP/s/device: 1.205, Tokens/s/device: 181.627, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0422 22:00:07.074780 132974282049344 metric_logger.py:196] completed step: 1, seconds: 1.102, TFLOP/s/device: 12.328, Tokens/s/device: 1858.250, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0422 22:00:07.495074 132974282049344 metric_logger.py:196] completed step: 2, seconds: 0.108, TFLOP/s/device: 126.188, Tokens/s/device: 19020.376, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129
I0422 22:00:07.642233 132974282049344 metric_logger.py:196] completed step: 3, seconds: 0.421, TFLOP/s/device: 32.311, Tokens/s/device: 4870.311, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.203
I0422 22:00:07.937351 132974282049344 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 88.684, Tokens/s/device: 13367.361, total_weights: 65536, loss: 9.277, lm_loss: 9.277, perplexity: 10694.614
I0422 22:00:07.943300 132974282049344 metric_logger.py:196] completed step: 5, seconds: 0.147, TFLOP/s/device: 92.419, Tokens/s/device: 13930.362, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.717
I0422 22:00:09.951573 2875 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0422 22:00:12.172569 132842369574656 array_metadata_store.py:203] [process=3][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints/0/items/array_metadatas/process_3
I0422 22:00:29.982166 132974282049344 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.951, Tokens/s/device: 6926.196, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.759
I0422 22:00:30.129496 132974282049344 metric_logger.py:196] completed step: 7, seconds: 21.892, TFLOP/s/device: 0.621, Tokens/s/device: 93.550, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4376.905
I0422 22:00:30.276726 132974282049344 metric_logger.py:196] completed step: 8, seconds: 0.153, TFLOP/s/device: 89.094, Tokens/s/device: 13429.244, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3846.406
I0422 22:00:30.423313 132974282049344 checkpointing.py:772] Waiting for step 9 to finish before checkpoint...
I0422 22:00:30.424013 132974282049344 checkpointing.py:776] Waited 0.0007219314575195312 seconds for step 9 to finish before starting checkpointing.
I0422 22:00:30.427277 132974282049344 checkpoint_manager.py:2020] [process=3][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 22:00:43.446582 132845563619072 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/gbytes_per_sec: 42.420 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 37.23674011230469 s) (per-host)
I0422 22:00:43.446692 132845563619072 async_checkpointer.py:90] [process=3][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.954247s.
I0422 22:00:52.640650 132845563619072 async_checkpointer.py:160] [process=3][thread=async_save] Background save thread done. Time taken: 46.148189s.
I0422 22:00:52.640960 132842361181952 async_checkpointer.py:288] [process=3][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 22:00:52.641083 132842361181952 async_checkpointer.py:298] [process=3][thread=save_finalize] No errors found in background save thread=async_save.
I0422 22:00:52.641137 132842361181952 checkpoint_manager.py:2137] [process=3][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0422 22:00:52.643492 132842361181952 checkpoint_manager.py:2146] [process=3][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0422 22:00:52.643685 132974282049344 checkpoint_manager.py:2032] [process=3][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0.
W0422 22:00:52.643827 132974282049344 checkpoint_manager.py:1452] Waiting for previous save to complete took 22.216550 seconds. If this number is high, consider checkpointing less frequently.
I0422 22:00:52.645818 132974282049344 checkpoint_manager.py:1512] [process=3] Saving checkpoint at step 9
I0422 22:00:52.647879 132974282049344 event_tracking.py:70] [process=3] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints/9.
I0422 22:00:52.948045 132974282049344 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0422 22:00:52.948138 132974282049344 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 22:00:52.981524 132974282049344 base_pytree_checkpoint_handler.py:154] [process=3][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.034466s
I0422 22:00:52.981705 132974282049344 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/blocking_gbytes_per_sec: 40.529 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.03806138038635254 s) (per-host)
I0422 22:00:52.981758 132974282049344 base_pytree_checkpoint_handler.py:768] [process=3][thread=MainThread] Initiated Pytree async_save. Time taken: 0.038125s (batch_requests_ready=0.001819s, total_serialization_initiated=0.036233s, others=0.000072s)
I0422 22:00:52.981849 132974282049344 composite_checkpoint_handler.py:715] [process=3][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.042182s (all_items=0.000016s, per_item={'items': '0.00001597'}, temp_paths=0.042166)
I0422 22:00:52.982562 132974282049344 event_tracking.py:125] [process=3] [async] Finished blocking save in 0.34 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints/9.
I0422 22:00:52.982853 132842361181952 async_checkpointer.py:76] [process=3][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 22:20:52.982819
I0422 22:00:52.984887 132974282049344 checkpoint_manager.py:1560] [process=3][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 22:00:52.985199 132822836688640 async_checkpointer.py:280] [process=3][thread=save_finalize] Waiting for background save thread=async_save.
I0422 22:00:52.985366 132974282049344 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776895230.4272454, 'wait_for_prev_duration_secs': 22.21654963493347, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776895252.6458573, 'checkpointer_blocking_duration_secs': 0.33710741996765137, 'get_old_steps_start_time': 1776895252.9829893, 'get_old_steps_duration_secs': 3.0517578125e-05, 'checkpoint_manager_blocking_start_time': 1776895230.4242377, 'checkpoint_manager_blocking_duration_secs': 22.561094522476196}
I0422 22:00:52.985476 132974282049344 checkpointing.py:408] Started an asynchronous checkpoint save for step 9
I0422 22:00:52.985527 132974282049344 checkpoint_manager.py:2020] [process=3][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 22:00:59.050157 132842369574656 array_metadata_store.py:203] [process=3][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_10_shardy_true/checkpoints/9/items/array_metadatas/process_3
I0422 22:01:35.106812 132842361181952 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/gbytes_per_sec: 37.464 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 42.16312837600708 s) (per-host)
I0422 22:01:35.106961 132842361181952 async_checkpointer.py:90] [process=3][thread=async_save] 3 Handler Commit operations completed. Time taken: 42.123487s.
I0422 22:01:43.259531 132842361181952 async_checkpointer.py:160] [process=3][thread=async_save] Background save thread done. Time taken: 50.276042s.
I0422 22:01:43.259859 132822836688640 async_checkpointer.py:288] [process=3][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 22:01:43.260021 132822836688640 async_checkpointer.py:298] [process=3][thread=save_finalize] No errors found in background save thread=async_save.
I0422 22:01:43.260069 132822836688640 checkpoint_manager.py:2137] [process=3][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0422 22:01:43.261522 132822836688640 checkpoint_manager.py:2146] [process=3][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0422 22:01:43.261705 132974282049344 checkpoint_manager.py:2032] [process=3][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9.
I0422 22:01:43.261865 132974282049344 checkpoint_manager.py:2009] [process=3][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 22:01:43.262871 132974282049344 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.290, Tokens/s/device: 13910.964, total_weights: 65536, loss: 8.179, lm_loss: 8.179, perplexity: 3564.635
Per train step:
Total TFLOPs: 13.59
split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Wed Apr 22 22:01:52 UTC 2026
EXIT_CODE=0