MaxView

XPK Start: Fri Apr 24 20:44:21 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 20:44:47.005123: 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 20:44:47.215598 136256057804608 max_utils.py:273] Attempting to initialize the jax distributed system...
I0424 20:44:56.255493 136256057804608 distributed.py:149] Starting JAX distributed service on [::]:8482
I0424 20:44:56.257913 136256057804608 distributed.py:172] Connecting to JAX distributed service on mt-11-optimizer-offload-3du4n-slice-job-0-0.mt-11-optimizer-offload-3du4n:8482
I0424 20:44:57.227844 136256057804608 max_utils.py:284] Jax distributed system initialized!
I0424 20:45:03.540329 136256057804608 max_utils.py:800] System Information: Jax Version: 0.9.2
I0424 20:45:03.540431 136256057804608 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0424 20:45:03.540471 136256057804608 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 20:45:03.540509 136256057804608 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0424 20:45:04.251033 136256057804608 maxtext_utils.py:1565] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0424 20:45:04.251316 136256057804608 checkpointing.py:677] Setting up checkpoint logger...
I0424 20:45:04.251369 136256057804608 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0424 20:45:04.251412 136256057804608 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0424 20:45:04.251766 136256057804608 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 0x7bebfcf11190>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0424 20:45:07.172433 136256057804608 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0424 20:45:07.172685 136256057804608 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 0x7bd73c3a7ce0>}, handler_registry=None
I0424 20:45:07.172928 136256057804608 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7bd73c3a7ce0>` 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 20:45:07.172976 136256057804608 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7bd73c3a98e0>` 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 20:45:07.173012 136256057804608 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 0x7bd73c3a7ce0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7bd73c3a7ce0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7bd73c3a98e0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7bd73c3a98e0>}).
I0424 20:45:07.173349 136256057804608 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0424 20:45:07.173420 136256057804608 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7bd69c1d7560> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0424 20:45:08.108425 136256057804608 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_11_optimizer_offload_true/checkpoints
I0424 20:45:08.417959 136256057804608 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_11_optimizer_offload_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7bd73c3a5730>
I0424 20:45:08.418132 136256057804608 checkpointing.py:301] Checkpoint manager created!
I0424 20:45:09.350887 136256057804608 nnx_wrappers.py:453] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0424 20:45:09.351005 136256057804608 nnx_wrappers.py:453] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0424 20:45:09.735707 136256057804608 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0424 20:45:09.735799 136256057804608 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0424 20:45:09.752244 136256057804608 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0424 20:45:09.752301 136256057804608 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0424 20:45:09.776705 136256057804608 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 20:45:09.776772 136256057804608 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0424 20:45:09.793871 136256057804608 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 20:45:09.793936 136256057804608 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0424 20:45:09.810379 136256057804608 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 20:45:09.810440 136256057804608 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0424 20:45:09.835562 136256057804608 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0424 20:45:09.835634 136256057804608 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0424 20:45:09.856699 136256057804608 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0424 20:45:09.856760 136256057804608 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0424 20:45:10.068537 136256057804608 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0424 20:45:10.068639 136256057804608 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0424 20:45:11.711969 136256057804608 maxtext_utils.py:1668]  params/params/decoder/decoder_norm/scale
    Shape:     float32[2048]
    Logical:   P('norm',)
    Physical:  (None,)
I0424 20:45:11.712097 136256057804608 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 20:45:11.712150 136256057804608 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 20:45:11.712212 136256057804608 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 20:45:11.712262 136256057804608 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 20:45:11.712300 136256057804608 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 20:45:11.712350 136256057804608 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 20:45:11.712405 136256057804608 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 20:45:11.712446 136256057804608 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 20:45:11.712481 136256057804608 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 20:45:11.712527 136256057804608 maxtext_utils.py:1668]  params/params/decoder/logits_dense/kernel
    Shape:     float32[2048,32000]
    Logical:   P('embed_vocab', 'vocab')
    Physical:  ('fsdp', None)

I0424 20:45:11.712571 136256057804608 maxtext_utils.py:1668]  params/params/token_embedder/embedding
    Shape:     float32[32000,2048]
    Logical:   P('vocab', 'embed_vocab')
    Physical:  (None, 'fsdp')
I0424 20:45:12.206249 136256057804608 train.py:155] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0424 20:45:12.206341 136256057804608 train.py:155] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0424 20:45:12.221862 136256057804608 train.py:162] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0424 20:45:12.221921 136256057804608 train.py:162] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0424 20:45:23.110478 136256057804608 max_utils.py:791] Total memory size: 1.3 GB, Output size: 0.1 GB, Temp size: 1.1 GB, Argument size: 0.1 GB, Host temp size: 0.0 GB.
I0424 20:45:23.111264 136256057804608 metric_logger.py:301] number parameters: 1.104 billion
I0424 20:45:34.785855 136256057804608 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0424 20:45:34.955728 136256057804608 checkpointing.py:776] Waited 0.16985011100769043 seconds for step 0 to finish before starting checkpointing.
I0424 20:45:34.958159 136256057804608 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0424 20:45:34.959782 136256057804608 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0424 20:45:34.961312 136256057804608 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_11_optimizer_offload_true/checkpoints/0.
I0424 20:45:35.293476 136256057804608 signaling_client.py:364] Using JaxDistributedSignalingClient
I0424 20:45:35.294546 136256057804608 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0424 20:45:35.294603 136256057804608 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 20:45:35.572183 136256057804608 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.278784s
I0424 20:45:35.572347 136256057804608 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.407 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.28528523445129395 s) (per-host)
I0424 20:45:35.572396 136256057804608 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.285345s (batch_requests_ready=0.002244s, total_serialization_initiated=0.283034s, others=0.000067s)
I0424 20:45:35.572508 136256057804608 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.289471s (all_items=0.000017s, per_item={'items': '0.00001717'}, temp_paths=0.289454)
I0424 20:45:35.573320 136256057804608 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_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_11_optimizer_offload_true/checkpoints/0.
I0424 20:45:35.573592 136109283583744 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-24 21:05:35.573569
I0424 20:45:35.575581 136256057804608 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0424 20:45:35.575892 136105241364224 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0424 20:45:35.576057 136256057804608 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_11_optimizer_offload_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777063534.95814, 'wait_for_prev_duration_secs': 6.699562072753906e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777063534.95982, 'checkpointer_blocking_duration_secs': 0.6138861179351807, 'get_old_steps_start_time': 1777063535.5737321, 'get_old_steps_duration_secs': 3.0279159545898438e-05, 'checkpoint_manager_blocking_start_time': 1777063534.9562936, 'checkpoint_manager_blocking_duration_secs': 0.6197230815887451}
I0424 20:45:35.576163 136256057804608 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0424 20:45:35.576218 136256057804608 max_utils.py:750] 
Memstats: After params initialized:
I0424 20:45:35.576269 136256057804608 max_utils.py:756] 	Using (GB) 0.17 / 31.25 (0.544000%) on TPU_18(process=5,(2,4,0,0))
I0424 20:45:35.576302 136256057804608 max_utils.py:756] 	Using (GB) 0.17 / 31.25 (0.544000%) on TPU_19(process=5,(3,4,0,0))
I0424 20:45:35.576330 136256057804608 max_utils.py:756] 	Using (GB) 0.17 / 31.25 (0.544000%) on TPU_22(process=5,(2,5,0,0))
I0424 20:45:35.576357 136256057804608 max_utils.py:756] 	Using (GB) 0.17 / 31.25 (0.544000%) on TPU_23(process=5,(3,5,0,0))
I0424 20:45:35.891318 136256057804608 metric_logger.py:196] completed step: 0, seconds: 11.674, TFLOP/s/device: 1.164, Tokens/s/device: 175.426, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0424 20:45:36.163790 136256057804608 metric_logger.py:196] completed step: 1, seconds: 1.104, TFLOP/s/device: 12.308, Tokens/s/device: 1855.241, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0424 20:45:36.553743 136256057804608 metric_logger.py:196] completed step: 2, seconds: 0.110, TFLOP/s/device: 123.726, Tokens/s/device: 18649.377, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129
I0424 20:45:36.716898 136256057804608 metric_logger.py:196] completed step: 3, seconds: 0.390, TFLOP/s/device: 34.830, Tokens/s/device: 5249.963, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.047
I0424 20:45:37.042435 136256057804608 metric_logger.py:196] completed step: 4, seconds: 0.169, TFLOP/s/device: 80.418, Tokens/s/device: 12121.499, total_weights: 65536, loss: 9.278, lm_loss: 9.278, perplexity: 10694.968
I0424 20:45:37.048384 136256057804608 metric_logger.py:196] completed step: 5, seconds: 0.163, TFLOP/s/device: 83.504, Tokens/s/device: 12586.656, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.520
I0424 20:45:39.074030    2852 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0424 20:45:41.035608 136109006755584 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_11_optimizer_offload_true/checkpoints/0/items/array_metadatas/process_5
I0424 20:45:59.931058 136256057804608 metric_logger.py:196] completed step: 6, seconds: 0.326, TFLOP/s/device: 41.672, Tokens/s/device: 6281.245, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.688
I0424 20:46:00.093860 136256057804608 metric_logger.py:196] completed step: 7, seconds: 22.720, TFLOP/s/device: 0.598, Tokens/s/device: 90.139, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4377.010
I0424 20:46:00.256675 136256057804608 metric_logger.py:196] completed step: 8, seconds: 0.168, TFLOP/s/device: 81.019, Tokens/s/device: 12212.138, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3845.943
I0424 20:46:00.418863 136256057804608 checkpointing.py:772] Waiting for step 9 to finish before checkpoint...
I0424 20:46:00.419518 136256057804608 checkpointing.py:776] Waited 0.0006780624389648438 seconds for step 9 to finish before starting checkpointing.
I0424 20:46:00.421611 136256057804608 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0424 20:46:12.524378 136109283583744 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 42.418 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 37.2372841835022 s) (per-host)
I0424 20:46:12.524485 136109283583744 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.950808s.
I0424 20:46:22.557380 136109283583744 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 46.983687s.
I0424 20:46:22.557675 136105241364224 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0424 20:46:22.557798 136105241364224 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0424 20:46:22.557853 136105241364224 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0424 20:46:22.560537 136105241364224 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0424 20:46:22.560709 136256057804608 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 20:46:22.560837 136256057804608 checkpoint_manager.py:1452] Waiting for previous save to complete took 22.139225 seconds. If this number is high, consider checkpointing less frequently.
I0424 20:46:22.562727 136256057804608 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0424 20:46:22.564859 136256057804608 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_11_optimizer_offload_true/checkpoints/9.
I0424 20:46:23.282989 136256057804608 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0424 20:46:23.283085 136256057804608 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 20:46:23.316713 136256057804608 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.034763s
I0424 20:46:23.316881 136256057804608 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 40.451 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.03813314437866211 s) (per-host)
I0424 20:46:23.316932 136256057804608 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.038194s (batch_requests_ready=0.001790s, total_serialization_initiated=0.036337s, others=0.000067s)
I0424 20:46:23.317024 136256057804608 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.042303s (all_items=0.000028s, per_item={'items': '0.00002813'}, temp_paths=0.042275)
I0424 20:46:23.317764 136256057804608 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.75 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260424_200834/linen_xpk_test_pipeline_scan_nnx_20260424_200834_11_optimizer_offload_true/checkpoints/9.
I0424 20:46:23.318073 136105241364224 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-24 21:06:23.318039
I0424 20:46:23.320039 136256057804608 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0424 20:46:23.320276 136101196982016 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0424 20:46:23.320404 136256057804608 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_11_optimizer_offload_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777063560.421581, 'wait_for_prev_duration_secs': 22.139225244522095, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777063582.5627656, 'checkpointer_blocking_duration_secs': 0.755455732345581, 'get_old_steps_start_time': 1777063583.3182466, 'get_old_steps_duration_secs': 3.0517578125e-05, 'checkpoint_manager_blocking_start_time': 1777063560.4197574, 'checkpoint_manager_blocking_duration_secs': 22.90061044692993}
I0424 20:46:23.320512 136256057804608 checkpointing.py:408] Started an asynchronous checkpoint save for step 9
I0424 20:46:23.320558 136256057804608 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0424 20:46:29.759854 136109006755584 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_11_optimizer_offload_true/checkpoints/9/items/array_metadatas/process_5
I0424 20:47:06.485102 136105241364224 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 36.558 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 43.20631504058838 s) (per-host)
I0424 20:47:06.485216 136105241364224 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 43.167031s.
I0424 20:47:13.589006 136105241364224 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 50.270803s.
I0424 20:47:13.589247 136101196982016 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0424 20:47:13.589320 136101196982016 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0424 20:47:13.589365 136101196982016 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0424 20:47:13.591094 136101196982016 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0424 20:47:13.591253 136256057804608 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 20:47:13.591399 136256057804608 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0424 20:47:13.592308 136256057804608 metric_logger.py:196] completed step: 9, seconds: 0.163, TFLOP/s/device: 83.343, Tokens/s/device: 12562.336, total_weights: 65536, loss: 8.179, lm_loss: 8.179, perplexity: 3564.739
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Fri Apr 24 20:47:22 UTC 2026
EXIT_CODE=0