XPK Start: Sat Apr 25 20:41:12 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.
2026-04-25 20:41:37.380230: 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)
I0425 20:41:37.590182 138012596094784 max_utils.py:273] Attempting to initialize the jax distributed system...
I0425 20:41:46.630809 138012596094784 distributed.py:149] Starting JAX distributed service on [::]:8482
I0425 20:41:46.633093 138012596094784 distributed.py:172] Connecting to JAX distributed service on mt-09-pdb-lt-1-7rouf-slice-job-0-0.mt-09-pdb-lt-1-7rouf:8482
I0425 20:41:47.778571 138012596094784 max_utils.py:284] Jax distributed system initialized!
I0425 20:41:54.063112 138012596094784 max_utils.py:800] System Information: Jax Version: 0.9.2
I0425 20:41:54.063218 138012596094784 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0425 20:41:54.063258 138012596094784 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
I0425 20:41:54.063296 138012596094784 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0425 20:41:54.751329 138012596094784 maxtext_utils.py:1565] Num_devices: 32, shape (1, 1, 1, 8, 1, 1, 1, 1, 4, 1, 1, 1, 1)
I0425 20:41:54.751606 138012596094784 checkpointing.py:677] Setting up checkpoint logger...
I0425 20:41:54.751673 138012596094784 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0425 20:41:54.751718 138012596094784 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0425 20:41:54.752062 138012596094784 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 0x7d84eed150d0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0425 20:41:58.494736 138012596094784 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0425 20:41:58.494978 138012596094784 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 0x7d70b848bc80>}, handler_registry=None
I0425 20:41:58.495226 138012596094784 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7d70b848bc80>` 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`.
I0425 20:41:58.495275 138012596094784 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7d70b848cb00>` 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`.
I0425 20:41:58.495312 138012596094784 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 0x7d70b848bc80>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7d70b848bc80>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7d70b848cb00>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7d70b848cb00>}).
I0425 20:41:58.495637 138012596094784 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0425 20:41:58.495720 138012596094784 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7d70b82bb2e0> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0425 20:41:59.178468 138012596094784 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints
I0425 20:41:59.639804 138012596094784 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_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7d70b8489fd0>
I0425 20:41:59.639991 138012596094784 checkpointing.py:301] Checkpoint manager created!
I0425 20:42:00.566325 138012596094784 nnx_wrappers.py:453] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0425 20:42:00.566443 138012596094784 nnx_wrappers.py:453] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, 'tensor').
I0425 20:42:00.945563 138012596094784 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0425 20:42:00.945669 138012596094784 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, 'tensor').
I0425 20:42:00.962106 138012596094784 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0425 20:42:00.962164 138012596094784 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, 'tensor').
I0425 20:42:00.985878 138012596094784 attentions.py:1154] attentions/query Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 20:42:00.985947 138012596094784 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, 'tensor', None).
I0425 20:42:01.002460 138012596094784 attentions.py:1155] attentions/key Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 20:42:01.002523 138012596094784 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, 'tensor', None).
I0425 20:42:01.018826 138012596094784 attentions.py:1156] attentions/value Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 20:42:01.018891 138012596094784 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, 'tensor', None).
I0425 20:42:01.043828 138012596094784 attentions.py:1198] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0425 20:42:01.043896 138012596094784 attentions.py:1198] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, 'tensor', None).
I0425 20:42:01.064996 138012596094784 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0425 20:42:01.065059 138012596094784 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, 'tensor').
I0425 20:42:01.275319 138012596094784 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0425 20:42:01.275431 138012596094784 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
fsdp: 8
tensor: 4
I0425 20:42:02.705885 138012596094784 maxtext_utils.py:1668] params/params/decoder/decoder_norm/scale
Shape: float32[2048]
Logical: P('norm',)
Physical: ('tensor',)
I0425 20:42:02.706016 138012596094784 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, 'tensor')
I0425 20:42:02.706071 138012596094784 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, 'tensor')
I0425 20:42:02.706128 138012596094784 maxtext_utils.py:1668] params/params/decoder/layers/mlp/wo/kernel
Shape: float32[7168,16,2048]
Logical: P('mlp', 'layers', 'embed')
Physical: ('tensor', None, 'fsdp')
I0425 20:42:02.706181 138012596094784 maxtext_utils.py:1668] params/params/decoder/layers/post_self_attention_layer_norm/scale
Shape: float32[2048,16]
Logical: P('norm', 'layers')
Physical: ('tensor', None)
I0425 20:42:02.706220 138012596094784 maxtext_utils.py:1668] params/params/decoder/layers/pre_self_attention_layer_norm/scale
Shape: float32[2048,16]
Logical: P('norm', 'layers')
Physical: ('tensor', None)
I0425 20:42:02.706276 138012596094784 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, 'tensor', None)
I0425 20:42:02.706330 138012596094784 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: ('tensor', None, None, 'fsdp')
I0425 20:42:02.706371 138012596094784 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, 'tensor', None)
I0425 20:42:02.706407 138012596094784 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, 'tensor', None)
I0425 20:42:02.706454 138012596094784 maxtext_utils.py:1668] params/params/decoder/logits_dense/kernel
Shape: float32[2048,32000]
Logical: P('embed_vocab', 'vocab')
Physical: ('fsdp', 'tensor')
I0425 20:42:02.706503 138012596094784 maxtext_utils.py:1668] params/params/token_embedder/embedding
Shape: float32[32000,2048]
Logical: P('vocab', 'embed_vocab')
Physical: ('tensor', 'fsdp')
I0425 20:42:03.202069 138012596094784 train.py:155] train/xent Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0425 20:42:03.202169 138012596094784 train.py:155] train/xent Physical: float32[8,2048]............................................. ('fsdp', None).
I0425 20:42:03.217703 138012596094784 train.py:162] train/z_loss Logical: float32[8,2048]............................................. ('activation_embed_and_logits_batch', 'activation_length').
I0425 20:42:03.217763 138012596094784 train.py:162] train/z_loss Physical: float32[8,2048]............................................. ('fsdp', None).
I0425 20:42:18.364401 138012596094784 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.
I0425 20:42:18.365218 138012596094784 metric_logger.py:301] number parameters: 1.104 billion
I0425 20:42:19.540508 138012596094784 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0425 20:42:34.141421 138012596094784 checkpointing.py:776] Waited 14.600891590118408 seconds for step 0 to finish before starting checkpointing.
I0425 20:42:34.143935 138012596094784 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 20:42:34.145844 138012596094784 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0425 20:42:34.147250 138012596094784 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints/0.
I0425 20:42:34.488337 138012596094784 signaling_client.py:364] Using JaxDistributedSignalingClient
I0425 20:42:34.489258 138012596094784 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 20:42:34.489317 138012596094784 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
I0425 20:42:34.750825 138012596094784 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.262565s
I0425 20:42:34.750998 138012596094784 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.750 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.2682507038116455 s) (per-host)
I0425 20:42:34.751060 138012596094784 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.268322s (batch_requests_ready=0.002306s, total_serialization_initiated=0.265935s, others=0.000080s)
I0425 20:42:34.751180 138012596094784 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.272352s (all_items=0.000018s, per_item={'items': '0.00001788'}, temp_paths=0.272334)
I0425 20:42:34.752038 138012596094784 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.61 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints/0.
I0425 20:42:34.752341 137884315318016 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 21:02:34.752306
I0425 20:42:34.766299 138012596094784 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 20:42:34.766610 137883761444608 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0425 20:42:34.766780 138012596094784 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777149754.1439164, 'wait_for_prev_duration_secs': 6.318092346191406e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777149754.1458833, 'checkpointer_blocking_duration_secs': 0.6066164970397949, 'get_old_steps_start_time': 1777149754.7525253, 'get_old_steps_duration_secs': 2.9325485229492188e-05, 'checkpoint_manager_blocking_start_time': 1777149754.1419811, 'checkpoint_manager_blocking_duration_secs': 0.6247599124908447}
I0425 20:42:34.766888 138012596094784 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0425 20:42:34.766936 138012596094784 max_utils.py:750]
Memstats: After params initialized:
I0425 20:42:34.766988 138012596094784 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_18(process=5,(2,4,0,0))
I0425 20:42:34.767021 138012596094784 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_19(process=5,(3,4,0,0))
I0425 20:42:34.767049 138012596094784 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_22(process=5,(2,5,0,0))
I0425 20:42:34.767075 138012596094784 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_23(process=5,(3,5,0,0))
I0425 20:42:35.078425 138012596094784 metric_logger.py:196] completed step: 0, seconds: 1.175, TFLOP/s/device: 2.890, Tokens/s/device: 435.680, total_weights: 16384, loss: 10.862, lm_loss: 10.862, perplexity: 52153.723
I0425 20:42:35.184135 138012596094784 metric_logger.py:196] completed step: 1, seconds: 15.536, TFLOP/s/device: 0.219, Tokens/s/device: 32.955, total_weights: 16384, loss: 10.862, lm_loss: 10.862, perplexity: 52153.723
I0425 20:42:35.570358 138012596094784 metric_logger.py:196] completed step: 2, seconds: 0.048, TFLOP/s/device: 70.476, Tokens/s/device: 10622.847, total_weights: 16384, loss: 9.763, lm_loss: 9.763, perplexity: 17373.129
I0425 20:42:35.628707 138012596094784 metric_logger.py:196] completed step: 3, seconds: 0.386, TFLOP/s/device: 8.810, Tokens/s/device: 1327.963, total_weights: 16384, loss: 8.823, lm_loss: 8.823, perplexity: 6791.817
I0425 20:42:35.746016 138012596094784 metric_logger.py:196] completed step: 4, seconds: 0.064, TFLOP/s/device: 52.991, Tokens/s/device: 7987.395, total_weights: 16384, loss: 7.947, lm_loss: 7.947, perplexity: 2828.417
I0425 20:42:35.751782 138012596094784 metric_logger.py:196] completed step: 5, seconds: 0.058, TFLOP/s/device: 58.623, Tokens/s/device: 8836.270, total_weights: 16384, loss: 7.212, lm_loss: 7.212, perplexity: 1355.339
I0425 20:42:37.870053 2591 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0425 20:42:39.901647 137883769837312 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_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints/0/items/array_metadatas/process_5
I0425 20:42:49.337586 138012596094784 metric_logger.py:196] completed step: 6, seconds: 0.118, TFLOP/s/device: 28.768, Tokens/s/device: 4336.190, total_weights: 16384, loss: 6.652, lm_loss: 6.652, perplexity: 774.659
I0425 20:42:49.395829 138012596094784 metric_logger.py:196] completed step: 7, seconds: 13.528, TFLOP/s/device: 0.251, Tokens/s/device: 37.847, total_weights: 16384, loss: 6.269, lm_loss: 6.269, perplexity: 527.696
I0425 20:42:49.454211 138012596094784 metric_logger.py:196] completed step: 8, seconds: 0.063, TFLOP/s/device: 53.874, Tokens/s/device: 8120.410, total_weights: 16384, loss: 6.031, lm_loss: 6.031, perplexity: 416.165
I0425 20:42:49.511869 138012596094784 checkpointing.py:772] Waiting for step 9 to finish before checkpoint...
I0425 20:42:49.512491 138012596094784 checkpointing.py:776] Waited 0.0006387233734130859 seconds for step 9 to finish before starting checkpointing.
I0425 20:42:49.515848 138012596094784 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 20:43:10.913990 137884315318016 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 43.358 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 36.43121814727783 s) (per-host)
I0425 20:43:10.914096 137884315318016 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.161646s.
I0425 20:43:18.987799 137884315318016 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 44.235334s.
I0425 20:43:18.988084 137883761444608 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 20:43:18.988200 137883761444608 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0425 20:43:18.988262 137883761444608 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0425 20:43:18.990394 137883761444608 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0425 20:43:18.990580 138012596094784 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.
W0425 20:43:18.990739 138012596094784 checkpoint_manager.py:1452] Waiting for previous save to complete took 29.474889 seconds. If this number is high, consider checkpointing less frequently.
I0425 20:43:18.992640 138012596094784 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0425 20:43:18.994808 138012596094784 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints/9.
I0425 20:43:19.700704 138012596094784 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0425 20:43:19.700797 138012596094784 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
I0425 20:43:19.726729 138012596094784 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.027081s
I0425 20:43:19.726919 138012596094784 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 50.376 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.03062129020690918 s) (per-host)
I0425 20:43:19.726975 138012596094784 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.030686s (batch_requests_ready=0.001873s, total_serialization_initiated=0.028738s, others=0.000075s)
I0425 20:43:19.727081 138012596094784 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.035095s (all_items=0.000015s, per_item={'items': '0.00001526'}, temp_paths=0.035080)
I0425 20:43:19.727839 138012596094784 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.74 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints/9.
I0425 20:43:19.728193 137883761444608 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 21:03:19.728153
I0425 20:43:19.731850 138012596094784 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 20:43:19.732095 137884306925312 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0425 20:43:19.732233 138012596094784 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777149769.5158188, 'wait_for_prev_duration_secs': 29.474888801574707, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777149798.992697, 'checkpointer_blocking_duration_secs': 0.7356522083282471, 'get_old_steps_start_time': 1777149799.7283738, 'get_old_steps_duration_secs': 2.9325485229492188e-05, 'checkpoint_manager_blocking_start_time': 1777149769.5127294, 'checkpoint_manager_blocking_duration_secs': 30.219468116760254}
I0425 20:43:19.732347 138012596094784 checkpointing.py:408] Started an asynchronous checkpoint save for step 9
I0425 20:43:19.732391 138012596094784 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 20:43:24.931502 137884315318016 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_20260425_201227/linen_xpk_test_pipeline_scan_nnx_20260425_201227_09_pdb_lt_1/checkpoints/9/items/array_metadatas/process_5
I0425 20:44:01.060972 137883761444608 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 38.187 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 41.36462593078613 s) (per-host)
I0425 20:44:01.061098 137883761444608 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 41.332783s.
I0425 20:44:08.084641 137883761444608 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 48.356311s.
I0425 20:44:08.084893 137884306925312 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 20:44:08.084967 137884306925312 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0425 20:44:08.085017 137884306925312 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0425 20:44:08.087492 137884306925312 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0425 20:44:08.087677 138012596094784 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.
I0425 20:44:08.087827 138012596094784 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 20:44:08.088743 138012596094784 metric_logger.py:196] completed step: 9, seconds: 0.058, TFLOP/s/device: 58.314, Tokens/s/device: 8789.700, 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: Sat Apr 25 20:44:18 UTC 2026
EXIT_CODE=0