XPK Start: Wed Apr 22 22:10:08 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 22:10:33.197275: 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 22:10:33.408722 133840015976256 max_utils.py:273] Attempting to initialize the jax distributed system...
I0422 22:10:42.451284 133840015976256 distributed.py:149] Starting JAX distributed service on [::]:8482
I0422 22:10:42.453606 133840015976256 distributed.py:172] Connecting to JAX distributed service on mt-13-scan-layers-true-rx5s6-slice-job-0-0.mt-13-scan-layers-true-rx5s6:8482
I0422 22:10:43.602331 133840015976256 max_utils.py:284] Jax distributed system initialized!
I0422 22:10:49.483930 133840015976256 max_utils.py:800] System Information: Jax Version: 0.9.2
I0422 22:10:49.484040 133840015976256 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0422 22:10:49.484080 133840015976256 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 22:10:49.484133 133840015976256 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0422 22:10:50.183129 133840015976256 maxtext_utils.py:1565] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0422 22:10:50.183421 133840015976256 checkpointing.py:677] Setting up checkpoint logger...
I0422 22:10:50.183477 133840015976256 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0422 22:10:50.183521 133840015976256 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0422 22:10:50.183861 133840015976256 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 0x79b97ad766c0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0422 22:10:53.603344 133840015976256 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0422 22:10:53.603579 133840015976256 checkpoint_manager.py:708] [process=6][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x79a5c0233740>}, handler_registry=None
I0422 22:10:53.603812 133840015976256 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x79a5c0233740>` 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 22:10:53.603860 133840015976256 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x79a57076c7d0>` 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 22:10:53.603895 133840015976256 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 0x79a5c0233740>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x79a5c0233740>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x79a57076c7d0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x79a57076c7d0>}).
I0422 22:10:53.604231 133840015976256 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0422 22:10:53.604305 133840015976256 async_checkpointer.py:192] [process=6][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x79a500383560> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0422 22:10:54.294896 133840015976256 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_13_scan_layers_true/checkpoints
I0422 22:10:54.728709 133840015976256 checkpoint_manager.py:929] [process=6][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_13_scan_layers_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x79a57076c140>
I0422 22:10:54.728884 133840015976256 checkpointing.py:301] Checkpoint manager created!
I0422 22:10:55.656302 133840015976256 nnx_wrappers.py:453] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0422 22:10:55.656420 133840015976256 nnx_wrappers.py:453] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 22:10:56.036457 133840015976256 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 22:10:56.036549 133840015976256 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 22:10:56.059593 133840015976256 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 22:10:56.059691 133840015976256 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 22:10:56.083421 133840015976256 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 22:10:56.083490 133840015976256 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 22:10:56.099955 133840015976256 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 22:10:56.100019 133840015976256 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 22:10:56.116451 133840015976256 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 22:10:56.116513 133840015976256 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 22:10:56.141422 133840015976256 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0422 22:10:56.141490 133840015976256 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 22:10:56.162806 133840015976256 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0422 22:10:56.162874 133840015976256 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0422 22:10:56.378756 133840015976256 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0422 22:10:56.378879 133840015976256 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0422 22:10:57.807039 133840015976256 maxtext_utils.py:1668] params/params/decoder/decoder_norm/scale
Shape: float32[2048]
Logical: P('norm',)
Physical: (None,)
I0422 22:10:57.807179 133840015976256 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 22:10:57.807232 133840015976256 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 22:10:57.807300 133840015976256 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 22:10:57.807354 133840015976256 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 22:10:57.807393 133840015976256 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 22:10:57.807445 133840015976256 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 22:10:57.807495 133840015976256 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 22:10:57.807534 133840015976256 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 22:10:57.807569 133840015976256 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 22:10:57.807616 133840015976256 maxtext_utils.py:1668] params/params/decoder/logits_dense/kernel
Shape: float32[2048,32000]
Logical: P('embed_vocab', 'vocab')
Physical: ('fsdp', None)
I0422 22:10:57.807664 133840015976256 maxtext_utils.py:1668] params/params/token_embedder/embedding
Shape: float32[32000,2048]
Logical: P('vocab', 'embed_vocab')
Physical: (None, 'fsdp')
I0422 22:10:58.305742 133840015976256 train.py:155] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0422 22:10:58.305842 133840015976256 train.py:155] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0422 22:10:58.321434 133840015976256 train.py:162] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0422 22:10:58.321492 133840015976256 train.py:162] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0422 22:11:08.985124 133840015976256 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 22:11:08.985985 133840015976256 metric_logger.py:301] number parameters: 1.104 billion
I0422 22:11:20.740247 133840015976256 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0422 22:11:20.901140 133840015976256 checkpointing.py:776] Waited 0.1608593463897705 seconds for step 0 to finish before starting checkpointing.
I0422 22:11:20.903629 133840015976256 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 22:11:20.905217 133840015976256 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 0
I0422 22:11:20.906604 133840015976256 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_13_scan_layers_true/checkpoints/0.
I0422 22:11:21.639825 133840015976256 signaling_client.py:364] Using JaxDistributedSignalingClient
I0422 22:11:21.640855 133840015976256 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0422 22:11:21.640912 133840015976256 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 22:11:21.918837 133840015976256 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.279083s
I0422 22:11:21.919023 133840015976256 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 5.417 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.284778356552124 s) (per-host)
I0422 22:11:21.919078 133840015976256 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.284844s (batch_requests_ready=0.002360s, total_serialization_initiated=0.282411s, others=0.000073s)
I0422 22:11:21.919194 133840015976256 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.289046s (all_items=0.000018s, per_item={'items': '0.00001836'}, temp_paths=0.289027)
I0422 22:11:21.920052 133840015976256 event_tracking.py:125] [process=6] [async] Finished blocking save in 1.01 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_13_scan_layers_true/checkpoints/0.
I0422 22:11:21.920351 133715902887680 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 22:31:21.920327
I0422 22:11:21.926409 133840015976256 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 22:11:21.926673 133713768589056 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0422 22:11:21.926825 133840015976256 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_13_scan_layers_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776895880.9036112, 'wait_for_prev_duration_secs': 6.031990051269531e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776895880.905255, 'checkpointer_blocking_duration_secs': 1.0152056217193604, 'get_old_steps_start_time': 1776895881.9204857, 'get_old_steps_duration_secs': 2.9325485229492188e-05, 'checkpoint_manager_blocking_start_time': 1776895880.9017005, 'checkpoint_manager_blocking_duration_secs': 1.025087594985962}
I0422 22:11:21.926927 133840015976256 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0422 22:11:21.926975 133840015976256 max_utils.py:750]
Memstats: After params initialized:
I0422 22:11:21.927024 133840015976256 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_24(process=6,(0,6,0,0))
I0422 22:11:21.927057 133840015976256 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_25(process=6,(1,6,0,0))
I0422 22:11:21.927085 133840015976256 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_28(process=6,(0,7,0,0))
I0422 22:11:21.927135 133840015976256 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_29(process=6,(1,7,0,0))
I0422 22:11:22.238398 133840015976256 metric_logger.py:196] completed step: 0, seconds: 11.754, TFLOP/s/device: 1.156, Tokens/s/device: 174.236, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0422 22:11:22.410447 133840015976256 metric_logger.py:196] completed step: 1, seconds: 1.497, TFLOP/s/device: 9.079, Tokens/s/device: 1368.438, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0422 22:11:22.821144 133840015976256 metric_logger.py:196] completed step: 2, seconds: 0.025, TFLOP/s/device: 546.019, Tokens/s/device: 82301.881, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129
I0422 22:11:22.968457 133840015976256 metric_logger.py:196] completed step: 3, seconds: 0.411, TFLOP/s/device: 33.072, Tokens/s/device: 4984.982, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.203
I0422 22:11:23.263644 133840015976256 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 88.856, Tokens/s/device: 13393.412, total_weights: 65536, loss: 9.277, lm_loss: 9.277, perplexity: 10694.614
I0422 22:11:23.269592 133840015976256 metric_logger.py:196] completed step: 5, seconds: 0.148, TFLOP/s/device: 92.097, Tokens/s/device: 13881.828, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.717
I0422 22:11:24.820604 2755 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0422 22:11:27.438131 133714826999552 array_metadata_store.py:203] [process=6][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_13_scan_layers_true/checkpoints/0/items/array_metadatas/process_6
I0422 22:11:46.127248 133840015976256 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.966, Tokens/s/device: 6928.422, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.759
I0422 22:11:46.274499 133840015976256 metric_logger.py:196] completed step: 7, seconds: 22.711, TFLOP/s/device: 0.598, Tokens/s/device: 90.177, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4376.905
I0422 22:11:46.421866 133840015976256 metric_logger.py:196] completed step: 8, seconds: 0.152, TFLOP/s/device: 89.270, Tokens/s/device: 13455.802, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3846.406
I0422 22:11:46.568698 133840015976256 checkpointing.py:772] Waiting for step 9 to finish before checkpoint...
I0422 22:11:46.569350 133840015976256 checkpointing.py:776] Waited 0.0006725788116455078 seconds for step 9 to finish before starting checkpointing.
I0422 22:11:46.571434 133840015976256 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 22:11:58.675600 133715902887680 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 42.644 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 37.04132008552551 s) (per-host)
I0422 22:11:58.675710 133715902887680 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.755280s.
I0422 22:12:06.927178 133715902887680 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 45.006733s.
I0422 22:12:06.927462 133713768589056 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 22:12:06.927603 133713768589056 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0422 22:12:06.927656 133713768589056 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0422 22:12:06.932147 133713768589056 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0422 22:12:06.932362 133840015976256 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0.
W0422 22:12:06.932504 133840015976256 checkpoint_manager.py:1452] Waiting for previous save to complete took 20.361068 seconds. If this number is high, consider checkpointing less frequently.
I0422 22:12:06.934348 133840015976256 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 9
I0422 22:12:06.936435 133840015976256 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_13_scan_layers_true/checkpoints/9.
I0422 22:12:07.217889 133840015976256 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0422 22:12:07.217982 133840015976256 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 22:12:07.258681 133840015976256 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.041810s
I0422 22:12:07.258851 133840015976256 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 33.992 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.0453801155090332 s) (per-host)
I0422 22:12:07.258902 133840015976256 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.045441s (batch_requests_ready=0.001925s, total_serialization_initiated=0.043448s, others=0.000068s)
I0422 22:12:07.258998 133840015976256 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.049406s (all_items=0.000016s, per_item={'items': '0.00001574'}, temp_paths=0.049390)
I0422 22:12:07.259662 133840015976256 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.33 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_13_scan_layers_true/checkpoints/9.
I0422 22:12:07.259989 133713768589056 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 22:32:07.259953
I0422 22:12:07.261926 133840015976256 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 22:12:07.262152 133686527768320 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0422 22:12:07.262285 133840015976256 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_13_scan_layers_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776895906.5714045, 'wait_for_prev_duration_secs': 20.36106848716736, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776895926.9343872, 'checkpointer_blocking_duration_secs': 0.32576608657836914, 'get_old_steps_start_time': 1776895927.2601743, 'get_old_steps_duration_secs': 3.0040740966796875e-05, 'checkpoint_manager_blocking_start_time': 1776895906.56958, 'checkpoint_manager_blocking_duration_secs': 20.692670345306396}
I0422 22:12:07.262396 133840015976256 checkpointing.py:408] Started an asynchronous checkpoint save for step 9
I0422 22:12:07.262439 133840015976256 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 22:12:12.426158 133714826999552 array_metadata_store.py:203] [process=6][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_13_scan_layers_true/checkpoints/9/items/array_metadatas/process_6
I0422 22:12:49.548781 133713768589056 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 37.312 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 42.33527135848999 s) (per-host)
I0422 22:12:49.548906 133713768589056 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 42.288805s.
I0422 22:12:57.612679 133713768589056 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 50.352565s.
I0422 22:12:57.612981 133686527768320 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 22:12:57.613128 133686527768320 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0422 22:12:57.613180 133686527768320 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0422 22:12:57.615870 133686527768320 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0422 22:12:57.616040 133840015976256 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9.
I0422 22:12:57.616209 133840015976256 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 22:12:57.617207 133840015976256 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.265, Tokens/s/device: 13907.186, 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 22:13:08 UTC 2026
EXIT_CODE=0