MaxView

XPK Start: Sat Apr 25 10:57:59 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 10:58:24.129242: 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 10:58:24.343617 139025714255680 max_utils.py:273] Attempting to initialize the jax distributed system...
I0425 10:58:33.384110 139025714255680 distributed.py:149] Starting JAX distributed service on [::]:8482
I0425 10:58:33.386693 139025714255680 distributed.py:172] Connecting to JAX distributed service on mt-05-fp8-twaho-slice-job-0-0.mt-05-fp8-twaho:8482
I0425 10:58:34.307609 139025714255680 max_utils.py:284] Jax distributed system initialized!
I0425 10:58:40.406351 139025714255680 max_utils.py:800] System Information: Jax Version: 0.9.2
I0425 10:58:40.406461 139025714255680 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0425 10:58:40.406500 139025714255680 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 10:58:40.406537 139025714255680 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0425 10:58:41.098713 139025714255680 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0425 10:58:41.529741 139025714255680 checkpointing.py:688] Setting up checkpoint logger...
I0425 10:58:41.529858 139025714255680 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0425 10:58:41.529904 139025714255680 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0425 10:58:41.530137 139025714255680 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 0x7e70d917e5d0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0425 10:58:44.415996 139025714255680 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0425 10:58:44.416240 139025714255680 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 0x7e5c9410e270>}, handler_registry=None
I0425 10:58:44.416482 139025714255680 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e5c9410e270>` 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 10:58:44.416530 139025714255680 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e5c7c4d6a20>` 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 10:58:44.416567 139025714255680 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 0x7e5c9410e270>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7e5c9410e270>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e5c7c4d6a20>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7e5c7c4d6a20>}).
I0425 10:58:44.416908 139025714255680 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0425 10:58:44.416991 139025714255680 async_checkpointer.py:192] [process=3][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7e5c940aae80> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0425 10:58:45.530763 139025714255680 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints
I0425 10:58:45.588759 139025714255680 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/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7e5c7c487530>
I0425 10:58:45.588920 139025714255680 checkpointing.py:302] Checkpoint manager created!
I0425 10:58:46.863490 139025714255680 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0425 10:58:46.863613 139025714255680 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32

I0425 10:58:49.393156 139025714255680 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0425 10:58:49.393256 139025714255680 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 10:58:49.398799 139025714255680 nnx_decoders.py:465] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0425 10:58:49.398861 139025714255680 nnx_decoders.py:465] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 10:58:49.415367 139025714255680 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn').
I0425 10:58:49.415433 139025714255680 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 10:58:49.431406 139025714255680 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn').
I0425 10:58:49.431466 139025714255680 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 10:58:49.490781 139025714255680 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_length_attn', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 10:58:49.490866 139025714255680 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 10:58:49.506788 139025714255680 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_length_attn', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 10:58:49.506852 139025714255680 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 10:58:49.522691 139025714255680 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_length_attn', 'activation_kv_heads', 'activation_kv_head_dim').
I0425 10:58:49.522751 139025714255680 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 10:58:49.554411 139025714255680 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch_attn', 'activation_length_attn', 'activation_heads', 'activation_kv').
I0425 10:58:49.554485 139025714255680 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 10:58:49.614007 139025714255680 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0425 10:58:49.614092 139025714255680 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0425 10:59:03.637450 139025714255680 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.
I0425 10:59:03.641333 139025714255680 metric_logger.py:301] number parameters: 1.104 billion
I0425 10:59:17.281382 139025714255680 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0425 10:59:17.443669 139025714255680 checkpointing.py:798] Waited 0.1622781753540039 seconds for step 0 to finish before starting checkpointing.
I0425 10:59:17.446316 139025714255680 checkpoint_manager.py:2009] [process=3][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 10:59:17.448475 139025714255680 checkpoint_manager.py:1512] [process=3] Saving checkpoint at step 0
I0425 10:59:17.449947 139025714255680 event_tracking.py:70] [process=3] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints/0.
I0425 10:59:17.962777 139025714255680 signaling_client.py:364] Using JaxDistributedSignalingClient
I0425 10:59:17.963790 139025714255680 jax_array_handlers.py:360] Scheduling D2H of 153 prioritized jax.Array.
I0425 10:59:17.963855 139025714255680 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 10:59:18.373424 139025714255680 base_pytree_checkpoint_handler.py:154] [process=3][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.412303s
I0425 10:59:18.373598 139025714255680 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/blocking_gbytes_per_sec: 3.596 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.42902398109436035 s) (per-host)
I0425 10:59:18.373649 139025714255680 base_pytree_checkpoint_handler.py:768] [process=3][thread=MainThread] Initiated Pytree async_save. Time taken: 0.429085s (batch_requests_ready=0.005499s, total_serialization_initiated=0.423517s, others=0.000068s)
I0425 10:59:18.373770 139025714255680 composite_checkpoint_handler.py:715] [process=3][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.433033s (all_items=0.000020s, per_item={'items': '0.00002003'}, temp_paths=0.433013)
I0425 10:59:18.374533 139025714255680 event_tracking.py:125] [process=3] [async] Finished blocking save in 0.93 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints/0.
I0425 10:59:18.374844 138896459597568 async_checkpointer.py:76] [process=3][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 11:19:18.374806
I0425 10:59:18.383857 139025714255680 checkpoint_manager.py:1560] [process=3][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 10:59:18.384165 138895921178368 async_checkpointer.py:280] [process=3][thread=save_finalize] Waiting for background save thread=async_save.
I0425 10:59:18.384320 139025714255680 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777114757.4462974, 'wait_for_prev_duration_secs': 6.341934204101562e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777114757.4485137, 'checkpointer_blocking_duration_secs': 0.9264364242553711, 'get_old_steps_start_time': 1777114758.3749764, 'get_old_steps_duration_secs': 2.86102294921875e-05, 'checkpoint_manager_blocking_start_time': 1777114757.4441497, 'checkpoint_manager_blocking_duration_secs': 0.9401328563690186}
I0425 10:59:18.384433 139025714255680 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0425 10:59:18.384505 139025714255680 max_utils.py:750] 
Memstats: After params initialized:
I0425 10:59:18.384551 139025714255680 max_utils.py:756] 	Using (GB) 0.45 / 31.25 (1.440000%) on TPU_10(process=3,(2,2,0,0))
I0425 10:59:18.384583 139025714255680 max_utils.py:756] 	Using (GB) 0.45 / 31.25 (1.440000%) on TPU_11(process=3,(3,2,0,0))
I0425 10:59:18.384609 139025714255680 max_utils.py:756] 	Using (GB) 0.45 / 31.25 (1.440000%) on TPU_14(process=3,(2,3,0,0))
I0425 10:59:18.384633 139025714255680 max_utils.py:756] 	Using (GB) 0.45 / 31.25 (1.440000%) on TPU_15(process=3,(3,3,0,0))
I0425 10:59:18.703114 139025714255680 metric_logger.py:196] completed step: 0, seconds: 13.638, TFLOP/s/device: 0.996, Tokens/s/device: 150.171, total_weights: 65536, loss: 10.872, lm_loss: 10.872, perplexity: 52680.742
I0425 10:59:18.886156 139025714255680 metric_logger.py:196] completed step: 1, seconds: 1.419, TFLOP/s/device: 9.575, Tokens/s/device: 1443.241, total_weights: 65536, loss: 10.872, lm_loss: 10.872, perplexity: 52680.742
I0425 10:59:19.331307 139025714255680 metric_logger.py:196] completed step: 2, seconds: 0.030, TFLOP/s/device: 449.607, Tokens/s/device: 67769.689, total_weights: 65536, loss: 10.856, lm_loss: 10.856, perplexity: 51864.762
I0425 10:59:19.488119 139025714255680 metric_logger.py:196] completed step: 3, seconds: 0.422, TFLOP/s/device: 32.183, Tokens/s/device: 4851.000, total_weights: 65536, loss: 10.824, lm_loss: 10.824, perplexity: 50225.512
I0425 10:59:19.803033 139025714255680 metric_logger.py:196] completed step: 4, seconds: 0.186, TFLOP/s/device: 72.871, Tokens/s/device: 10983.942, total_weights: 65536, loss: 10.793, lm_loss: 10.793, perplexity: 48689.156
I0425 10:59:19.813426 139025714255680 metric_logger.py:196] completed step: 5, seconds: 0.157, TFLOP/s/device: 86.788, Tokens/s/device: 13081.581, total_weights: 65536, loss: 10.763, lm_loss: 10.763, perplexity: 47229.012
I0425 10:59:21.404722    2798 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0425 10:59:23.597281 138895929571072 array_metadata_store.py:203] [process=3][thread=array_type_handler] Wrote 153 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints/0/items/array_metadatas/process_3
I0425 10:59:38.305193 138896459597568 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/gbytes_per_sec: 77.589 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 20.360581874847412 s) (per-host)
I0425 10:59:38.305321 138896459597568 async_checkpointer.py:90] [process=3][thread=async_save] 3 Handler Commit operations completed. Time taken: 19.929837s.
I0425 10:59:43.760964 139025714255680 metric_logger.py:196] completed step: 6, seconds: 0.316, TFLOP/s/device: 42.980, Tokens/s/device: 6478.368, total_weights: 65536, loss: 10.733, lm_loss: 10.733, perplexity: 45864.258
I0425 10:59:43.917723 139025714255680 metric_logger.py:196] completed step: 7, seconds: 23.794, TFLOP/s/device: 0.571, Tokens/s/device: 86.072, total_weights: 65536, loss: 10.706, lm_loss: 10.706, perplexity: 44620.242
I0425 10:59:44.229822 139025714255680 metric_logger.py:196] completed step: 8, seconds: 0.163, TFLOP/s/device: 83.440, Tokens/s/device: 12576.917, total_weights: 65536, loss: 10.680, lm_loss: 10.680, perplexity: 43477.055
I0425 10:59:44.238140 139025714255680 checkpointing.py:794] Waiting for step 10 to finish before checkpoint...
I0425 10:59:44.543896 139025714255680 checkpointing.py:798] Waited 0.3057265281677246 seconds for step 10 to finish before starting checkpointing.
I0425 10:59:44.546290 139025714255680 checkpoint_manager.py:2020] [process=3][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 10:59:45.408214 138896459597568 async_checkpointer.py:160] [process=3][thread=async_save] Background save thread done. Time taken: 27.032713s.
I0425 10:59:45.408504 138895921178368 async_checkpointer.py:288] [process=3][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 10:59:45.408630 138895921178368 async_checkpointer.py:298] [process=3][thread=save_finalize] No errors found in background save thread=async_save.
I0425 10:59:45.408689 138895921178368 checkpoint_manager.py:2137] [process=3][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0425 10:59:45.411072 138895921178368 checkpoint_manager.py:2146] [process=3][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0425 10:59:45.411256 139025714255680 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.
I0425 10:59:45.412780 139025714255680 checkpoint_manager.py:1512] [process=3] Saving checkpoint at step 10
I0425 10:59:45.414874 139025714255680 event_tracking.py:70] [process=3] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints/10.
I0425 10:59:45.719407 139025714255680 jax_array_handlers.py:360] Scheduling D2H of 153 prioritized jax.Array.
I0425 10:59:45.719515 139025714255680 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 10:59:45.767952 139025714255680 base_pytree_checkpoint_handler.py:154] [process=3][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.051015s
I0425 10:59:45.768125 139025714255680 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/blocking_gbytes_per_sec: 23.518 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.0655984878540039 s) (per-host)
I0425 10:59:45.768178 139025714255680 base_pytree_checkpoint_handler.py:768] [process=3][thread=MainThread] Initiated Pytree async_save. Time taken: 0.065661s (batch_requests_ready=0.005470s, total_serialization_initiated=0.060121s, others=0.000070s)
I0425 10:59:45.768300 139025714255680 composite_checkpoint_handler.py:715] [process=3][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.069686s (all_items=0.000022s, per_item={'items': '0.00002193'}, temp_paths=0.069664)
I0425 10:59:45.769038 139025714255680 event_tracking.py:125] [process=3] [async] Finished blocking save in 0.36 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints/10.
I0425 10:59:45.769305 138895921178368 async_checkpointer.py:76] [process=3][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 11:19:45.769282
I0425 10:59:45.771265 139025714255680 checkpoint_manager.py:1560] [process=3][thread=MainThread][step=10] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 10:59:45.771477 138894326617856 async_checkpointer.py:280] [process=3][thread=save_finalize] Waiting for background save thread=async_save.
I0425 10:59:45.771592 139025714255680 standard_logger.py:34] {'step': 10, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777114784.5462594, 'wait_for_prev_duration_secs': 0.8650994300842285, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777114785.4128215, 'checkpointer_blocking_duration_secs': 0.3565857410430908, 'get_old_steps_start_time': 1777114785.76943, 'get_old_steps_duration_secs': 2.9087066650390625e-05, 'checkpoint_manager_blocking_start_time': 1777114784.5443513, 'checkpoint_manager_blocking_duration_secs': 1.2272088527679443}
I0425 10:59:45.771704 139025714255680 checkpointing.py:409] Started an asynchronous checkpoint save for step 10
I0425 10:59:45.772345 139025714255680 metric_logger.py:196] completed step: 9, seconds: 0.306, TFLOP/s/device: 44.332, Tokens/s/device: 6682.263, total_weights: 65536, loss: 10.656, lm_loss: 10.656, perplexity: 42467.320
I0425 10:59:45.783314 139025714255680 metric_logger.py:196] completed step: 10, seconds: 0.162, TFLOP/s/device: 83.668, Tokens/s/device: 12611.381, total_weights: 65536, loss: 10.636, lm_loss: 10.636, perplexity: 41601.941
I0425 10:59:45.936900 139025714255680 metric_logger.py:196] completed step: 11, seconds: 1.542, TFLOP/s/device: 8.809, Tokens/s/device: 1327.791, total_weights: 65536, loss: 10.618, lm_loss: 10.618, perplexity: 40849.570
I0425 10:59:46.498335 139025714255680 metric_logger.py:196] completed step: 12, seconds: 0.010, TFLOP/s/device: 1370.776, Tokens/s/device: 206618.241, total_weights: 65536, loss: 10.602, lm_loss: 10.602, perplexity: 40203.926
I0425 10:59:46.655293 139025714255680 metric_logger.py:196] completed step: 13, seconds: 0.553, TFLOP/s/device: 24.565, Tokens/s/device: 3702.766, total_weights: 65536, loss: 10.588, lm_loss: 10.588, perplexity: 39652.145
I0425 10:59:46.812177 139025714255680 metric_logger.py:196] completed step: 14, seconds: 0.163, TFLOP/s/device: 83.196, Tokens/s/device: 12540.260, total_weights: 65536, loss: 10.577, lm_loss: 10.577, perplexity: 39212.879
I0425 10:59:46.969111 139025714255680 metric_logger.py:196] completed step: 15, seconds: 0.157, TFLOP/s/device: 86.730, Tokens/s/device: 13072.897, total_weights: 65536, loss: 10.568, lm_loss: 10.568, perplexity: 38879.223
I0425 10:59:47.125875 139025714255680 metric_logger.py:196] completed step: 16, seconds: 0.157, TFLOP/s/device: 86.569, Tokens/s/device: 13048.658, total_weights: 65536, loss: 10.562, lm_loss: 10.562, perplexity: 38619.105
I0425 10:59:47.282633 139025714255680 metric_logger.py:196] completed step: 17, seconds: 0.157, TFLOP/s/device: 86.587, Tokens/s/device: 13051.403, total_weights: 65536, loss: 10.556, lm_loss: 10.556, perplexity: 38395.816
I0425 10:59:47.439586 139025714255680 metric_logger.py:196] completed step: 18, seconds: 0.157, TFLOP/s/device: 86.666, Tokens/s/device: 13063.307, total_weights: 65536, loss: 10.552, lm_loss: 10.552, perplexity: 38236.652
I0425 10:59:47.598012 139025714255680 checkpointing.py:794] Waiting for step 19 to finish before checkpoint...
I0425 10:59:47.599250 139025714255680 checkpointing.py:798] Waited 0.001249551773071289 seconds for step 19 to finish before starting checkpointing.
I0425 10:59:47.601509 139025714255680 checkpoint_manager.py:2020] [process=3][thread=MainThread][step=10][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 10:59:52.263111 138892707612416 array_metadata_store.py:203] [process=3][thread=array_type_handler] Wrote 153 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints/10/items/array_metadatas/process_3
I0425 11:00:07.755494 138895921178368 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/gbytes_per_sec: 71.635 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 22.052945613861084 s) (per-host)
I0425 11:00:07.755602 138895921178368 async_checkpointer.py:90] [process=3][thread=async_save] 3 Handler Commit operations completed. Time taken: 21.986218s.
I0425 11:00:14.067419 138895921178368 async_checkpointer.py:160] [process=3][thread=async_save] Background save thread done. Time taken: 28.298018s.
I0425 11:00:14.067652 138894326617856 async_checkpointer.py:288] [process=3][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 11:00:14.067722 138894326617856 async_checkpointer.py:298] [process=3][thread=save_finalize] No errors found in background save thread=async_save.
I0425 11:00:14.067767 138894326617856 checkpoint_manager.py:2137] [process=3][thread=save_finalize][step=10] CheckpointManager Save Finalize is syncing with other hosts...
I0425 11:00:14.069326 138894326617856 checkpoint_manager.py:2146] [process=3][thread=save_finalize][step=10] CheckpointManager Save Finalize is done on all hosts.
I0425 11:00:14.069509 139025714255680 checkpoint_manager.py:2032] [process=3][thread=MainThread][step=10][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=10.
W0425 11:00:14.069656 139025714255680 checkpoint_manager.py:1452] Waiting for previous save to complete took 26.468141 seconds. If this number is high, consider checkpointing less frequently.
I0425 11:00:14.071535 139025714255680 checkpoint_manager.py:1512] [process=3] Saving checkpoint at step 19
I0425 11:00:14.073537 139025714255680 event_tracking.py:70] [process=3] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints/19.
I0425 11:00:14.814232 139025714255680 jax_array_handlers.py:360] Scheduling D2H of 153 prioritized jax.Array.
I0425 11:00:14.814344 139025714255680 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 11:00:14.867633 139025714255680 base_pytree_checkpoint_handler.py:154] [process=3][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.056281s
I0425 11:00:14.867799 139025714255680 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/blocking_gbytes_per_sec: 2.965 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.5203089714050293 s) (per-host)
I0425 11:00:14.867850 139025714255680 base_pytree_checkpoint_handler.py:768] [process=3][thread=MainThread] Initiated Pytree async_save. Time taken: 0.520370s (batch_requests_ready=0.455079s, total_serialization_initiated=0.065225s, others=0.000066s)
I0425 11:00:14.867964 139025714255680 composite_checkpoint_handler.py:715] [process=3][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.524512s (all_items=0.000011s, per_item={'items': '0.00001144'}, temp_paths=0.524501)
I0425 11:00:14.868717 139025714255680 event_tracking.py:125] [process=3] [async] Finished blocking save in 0.80 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints/19.
I0425 11:00:14.869029 138894326617856 async_checkpointer.py:76] [process=3][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 11:20:14.868996
I0425 11:00:14.870997 139025714255680 checkpoint_manager.py:1560] [process=3][thread=MainThread][step=19] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 11:00:14.871276 138893252876032 async_checkpointer.py:280] [process=3][thread=save_finalize] Waiting for background save thread=async_save.
I0425 11:00:14.871434 139025714255680 standard_logger.py:34] {'step': 19, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777114787.60148, 'wait_for_prev_duration_secs': 26.468140602111816, 'time_between_consecutive_saves_sec': 2.190366744995117, 'checkpointer_blocking_start_time': 1777114814.071574, 'checkpointer_blocking_duration_secs': 0.7975938320159912, 'get_old_steps_start_time': 1777114814.8691857, 'get_old_steps_duration_secs': 2.574920654296875e-05, 'checkpoint_manager_blocking_start_time': 1777114787.5995429, 'checkpoint_manager_blocking_duration_secs': 27.271860361099243}
I0425 11:00:14.871554 139025714255680 checkpointing.py:409] Started an asynchronous checkpoint save for step 19
I0425 11:00:14.871596 139025714255680 checkpoint_manager.py:2020] [process=3][thread=MainThread][step=19][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 11:00:19.824408 138894343403264 array_metadata_store.py:203] [process=3][thread=array_type_handler] Wrote 153 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114/nnx_xpk_feat_nnx_trainstate_and_training_loop_20260425_092114_05_fp8/checkpoints/19/items/array_metadatas/process_3
I0425 11:00:36.179052 138894326617856 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/gbytes_per_sec: 72.361 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 21.83151149749756 s) (per-host)
I0425 11:00:36.179171 138894326617856 async_checkpointer.py:90] [process=3][thread=async_save] 3 Handler Commit operations completed. Time taken: 21.310031s.
I0425 11:00:42.170537 138894326617856 async_checkpointer.py:160] [process=3][thread=async_save] Background save thread done. Time taken: 27.301381s.
I0425 11:00:42.170897 138893252876032 async_checkpointer.py:288] [process=3][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 11:00:42.171034 138893252876032 async_checkpointer.py:298] [process=3][thread=save_finalize] No errors found in background save thread=async_save.
I0425 11:00:42.171076 138893252876032 checkpoint_manager.py:2137] [process=3][thread=save_finalize][step=19] CheckpointManager Save Finalize is syncing with other hosts...
I0425 11:00:42.173492 138893252876032 checkpoint_manager.py:2146] [process=3][thread=save_finalize][step=19] CheckpointManager Save Finalize is done on all hosts.
I0425 11:00:42.173698 139025714255680 checkpoint_manager.py:2032] [process=3][thread=MainThread][step=19][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=19.
I0425 11:00:42.173879 139025714255680 checkpoint_manager.py:2009] [process=3][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 11:00:42.174879 139025714255680 metric_logger.py:196] completed step: 19, seconds: 0.157, TFLOP/s/device: 86.725, Tokens/s/device: 13072.062, total_weights: 65536, loss: 10.549, lm_loss: 10.549, perplexity: 38125.074
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Sat Apr 25 11:00:54 UTC 2026
EXIT_CODE=0