MaxView

XPK Start: Sat Apr 25 13:48:02 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 13:48:27.022321: 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 13:48:27.234325 135413858600768 max_utils.py:273] Attempting to initialize the jax distributed system...
I0425 13:48:36.276525 135413858600768 distributed.py:149] Starting JAX distributed service on [::]:8482
I0425 13:48:36.279026 135413858600768 distributed.py:172] Connecting to JAX distributed service on mt-05-fp8-hotgr-slice-job-0-0.mt-05-fp8-hotgr:8482
I0425 13:48:37.091077 135413858600768 max_utils.py:284] Jax distributed system initialized!
I0425 13:48:43.317158 135413858600768 max_utils.py:800] System Information: Jax Version: 0.9.2
I0425 13:48:43.317269 135413858600768 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0425 13:48:43.317310 135413858600768 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 13:48:43.317347 135413858600768 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0425 13:48:44.014969 135413858600768 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0425 13:48:44.441615 135413858600768 checkpointing.py:688] Setting up checkpoint logger...
I0425 13:48:44.441737 135413858600768 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0425 13:48:44.441784 135413858600768 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0425 13:48:44.442003 135413858600768 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 0x7b27c72486e0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0425 13:48:47.317631 135413858600768 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0425 13:48:47.317869 135413858600768 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 0x7b26bb05e480>}, handler_registry=None
I0425 13:48:47.318129 135413858600768 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7b26bb05e480>` 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 13:48:47.318180 135413858600768 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7b13bc2785f0>` 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 13:48:47.318217 135413858600768 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 0x7b26bb05e480>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7b26bb05e480>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7b13bc2785f0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7b13bc2785f0>}).
I0425 13:48:47.318561 135413858600768 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0425 13:48:47.318633 135413858600768 async_checkpointer.py:192] [process=6][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7b13bc282340> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0425 13:48:48.034538 135413858600768 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints
I0425 13:48:48.036825 135413858600768 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/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7b138c577950>
I0425 13:48:48.036942 135413858600768 checkpointing.py:302] Checkpoint manager created!
I0425 13:48:49.298832 135413858600768 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0425 13:48:49.298957 135413858600768 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0425 13:48:51.379650 135413858600768 maxtext_utils.py:1889]  decoder/decoder_norm/scale/value
    Shape:     float32[2048]
    Physical:  (None,)
I0425 13:48:51.379770 135413858600768 maxtext_utils.py:1889]  decoder/layers/mlp/wi_0/kernel/value
    Shape:     float32[2048,16,7168]
    Physical:  ('fsdp', None, None)
I0425 13:48:51.379821 135413858600768 maxtext_utils.py:1889]  decoder/layers/mlp/wi_1/kernel/value
    Shape:     float32[2048,16,7168]
    Physical:  ('fsdp', None, None)
I0425 13:48:51.379863 135413858600768 maxtext_utils.py:1889]  decoder/layers/mlp/wo/kernel/value
    Shape:     float32[7168,16,2048]
    Physical:  (None, None, 'fsdp')
I0425 13:48:51.379899 135413858600768 maxtext_utils.py:1889]  decoder/layers/post_self_attention_layer_norm/scale/value
    Shape:     float32[2048,16]
    Physical:  (None, None)
I0425 13:48:51.379934 135413858600768 maxtext_utils.py:1889]  decoder/layers/pre_self_attention_layer_norm/scale/value
    Shape:     float32[2048,16]
    Physical:  (None, None)
I0425 13:48:51.379971 135413858600768 maxtext_utils.py:1889]  decoder/layers/self_attention/key/kernel/value
    Shape:     float32[2048,16,16,128]
    Physical:  ('fsdp', None, None, None)
I0425 13:48:51.380007 135413858600768 maxtext_utils.py:1889]  decoder/layers/self_attention/out/kernel/value
    Shape:     float32[16,16,128,2048]
    Physical:  (None, None, None, 'fsdp')
I0425 13:48:51.380040 135413858600768 maxtext_utils.py:1889]  decoder/layers/self_attention/query/kernel/value
    Shape:     float32[2048,16,16,128]
    Physical:  ('fsdp', None, None, None)
I0425 13:48:51.380073 135413858600768 maxtext_utils.py:1889]  decoder/layers/self_attention/value/kernel/value
    Shape:     float32[2048,16,16,128]
    Physical:  ('fsdp', None, None, None)

I0425 13:48:51.380119 135413858600768 maxtext_utils.py:1889]  decoder/logits_dense/kernel/value
    Shape:     float32[2048,32000]
    Physical:  ('fsdp', None)
I0425 13:48:51.380157 135413858600768 maxtext_utils.py:1889]  token_embedder/embedding/value
    Shape:     float32[32000,2048]
    Physical:  (None, 'fsdp')
I0425 13:48:51.801797 135413858600768 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0425 13:48:51.801900 135413858600768 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 13:48:51.807084 135413858600768 nnx_decoders.py:465] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0425 13:48:51.807164 135413858600768 nnx_decoders.py:465] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 13:48:51.824049 135413858600768 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn').
I0425 13:48:51.824122 135413858600768 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 13:48:51.840251 135413858600768 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn').
I0425 13:48:51.840319 135413858600768 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0425 13:48:51.899392 135413858600768 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 13:48:51.899481 135413858600768 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 13:48:51.915908 135413858600768 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 13:48:51.915973 135413858600768 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 13:48:51.932199 135413858600768 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 13:48:51.932260 135413858600768 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 13:48:51.963563 135413858600768 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch_attn', 'activation_length_attn', 'activation_heads', 'activation_kv').
I0425 13:48:51.963637 135413858600768 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0425 13:48:52.022627 135413858600768 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0425 13:48:52.022709 135413858600768 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0425 13:49:06.204895 135413858600768 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 13:49:06.208802 135413858600768 metric_logger.py:301] number parameters: 1.104 billion
I0425 13:49:19.797344 135413858600768 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0425 13:49:19.958498 135413858600768 checkpointing.py:798] Waited 0.16113972663879395 seconds for step 0 to finish before starting checkpointing.
I0425 13:49:19.960937 135413858600768 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 13:49:19.963115 135413858600768 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 0
I0425 13:49:19.964555 135413858600768 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints/0.
I0425 13:49:20.328836 135413858600768 signaling_client.py:364] Using JaxDistributedSignalingClient
I0425 13:49:20.329924 135413858600768 jax_array_handlers.py:360] Scheduling D2H of 153 prioritized jax.Array.
I0425 13:49:20.329987 135413858600768 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 13:49:20.745185 135413858600768 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.417968s
I0425 13:49:20.745370 135413858600768 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 3.542 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.43555712699890137 s) (per-host)
I0425 13:49:20.745423 135413858600768 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.435624s (batch_requests_ready=0.006581s, total_serialization_initiated=0.428968s, others=0.000076s)
I0425 13:49:20.745547 135413858600768 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.439886s (all_items=0.000019s, per_item={'items': '0.00001860'}, temp_paths=0.439867)
I0425 13:49:20.746383 135413858600768 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.78 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints/0.
I0425 13:49:20.746734 135285918127872 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 14:09:20.746694
I0425 13:49:20.754756 135413858600768 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 13:49:20.754999 135285421631232 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 13:49:20.755170 135413858600768 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777124959.9609182, 'wait_for_prev_duration_secs': 6.4849853515625e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777124959.963153, 'checkpointer_blocking_duration_secs': 0.7837369441986084, 'get_old_steps_start_time': 1777124960.7469146, 'get_old_steps_duration_secs': 3.0040740966796875e-05, 'checkpoint_manager_blocking_start_time': 1777124959.958975, 'checkpoint_manager_blocking_duration_secs': 0.7961571216583252}
I0425 13:49:20.755283 135413858600768 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0425 13:49:20.755368 135413858600768 max_utils.py:750] 
Memstats: After params initialized:
I0425 13:49:20.755418 135413858600768 max_utils.py:756] 	Using (GB) 0.45 / 31.25 (1.440000%) on TPU_24(process=6,(0,6,0,0))
I0425 13:49:20.755452 135413858600768 max_utils.py:756] 	Using (GB) 0.45 / 31.25 (1.440000%) on TPU_25(process=6,(1,6,0,0))
I0425 13:49:20.755489 135413858600768 max_utils.py:756] 	Using (GB) 0.45 / 31.25 (1.440000%) on TPU_28(process=6,(0,7,0,0))
I0425 13:49:20.755528 135413858600768 max_utils.py:756] 	Using (GB) 0.45 / 31.25 (1.440000%) on TPU_29(process=6,(1,7,0,0))
I0425 13:49:21.071860 135413858600768 metric_logger.py:196] completed step: 0, seconds: 13.586, TFLOP/s/device: 1.000, Tokens/s/device: 150.740, total_weights: 65536, loss: 10.872, lm_loss: 10.872, perplexity: 52680.742
I0425 13:49:21.266871 135413858600768 metric_logger.py:196] completed step: 1, seconds: 1.272, TFLOP/s/device: 10.683, Tokens/s/device: 1610.306, total_weights: 65536, loss: 10.872, lm_loss: 10.872, perplexity: 52680.742
I0425 13:49:21.741384 135413858600768 metric_logger.py:196] completed step: 2, seconds: 0.042, TFLOP/s/device: 320.792, Tokens/s/device: 48353.205, total_weights: 65536, loss: 10.856, lm_loss: 10.856, perplexity: 51864.762
I0425 13:49:21.898972 135413858600768 metric_logger.py:196] completed step: 3, seconds: 0.452, TFLOP/s/device: 30.091, Tokens/s/device: 4535.629, total_weights: 65536, loss: 10.824, lm_loss: 10.824, perplexity: 50225.512
I0425 13:49:22.214495 135413858600768 metric_logger.py:196] completed step: 4, seconds: 0.186, TFLOP/s/device: 72.937, Tokens/s/device: 10993.848, total_weights: 65536, loss: 10.793, lm_loss: 10.793, perplexity: 48689.156
I0425 13:49:22.224141 135413858600768 metric_logger.py:196] completed step: 5, seconds: 0.157, TFLOP/s/device: 86.290, Tokens/s/device: 13006.560, total_weights: 65536, loss: 10.763, lm_loss: 10.763, perplexity: 47229.012
I0425 13:49:23.731269    2832 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0425 13:49:25.728223 135285430023936 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 153 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints/0/items/array_metadatas/process_6
I0425 13:49:39.730320 135285918127872 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 81.345 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 19.42047095298767 s) (per-host)
I0425 13:49:39.730466 135285918127872 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 18.983614s.
I0425 13:49:46.455287 135413858600768 metric_logger.py:196] completed step: 6, seconds: 0.316, TFLOP/s/device: 43.024, Tokens/s/device: 6485.117, total_weights: 65536, loss: 10.733, lm_loss: 10.733, perplexity: 45864.258
I0425 13:49:46.464493 135413858600768 metric_logger.py:196] completed step: 7, seconds: 24.231, TFLOP/s/device: 0.561, Tokens/s/device: 84.521, total_weights: 65536, loss: 10.706, lm_loss: 10.706, perplexity: 44620.242
I0425 13:49:46.621199 135413858600768 metric_logger.py:196] completed step: 8, seconds: 0.010, TFLOP/s/device: 1367.465, Tokens/s/device: 206119.163, total_weights: 65536, loss: 10.680, lm_loss: 10.680, perplexity: 43477.055
I0425 13:49:46.629949 135413858600768 checkpointing.py:794] Waiting for step 10 to finish before checkpoint...
I0425 13:49:46.935194 135413858600768 checkpointing.py:798] Waited 0.30522727966308594 seconds for step 10 to finish before starting checkpointing.
I0425 13:49:46.937583 135413858600768 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 13:49:49.601649 135285918127872 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 28.854780s.
I0425 13:49:49.601920 135285421631232 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 13:49:49.602047 135285421631232 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 13:49:49.602113 135285421631232 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0425 13:49:49.604865 135285421631232 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0425 13:49:49.605012 135413858600768 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.
W0425 13:49:49.605082 135413858600768 checkpoint_manager.py:1452] Waiting for previous save to complete took 2.667503 seconds. If this number is high, consider checkpointing less frequently.
I0425 13:49:49.607091 135413858600768 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 10
I0425 13:49:49.609012 135413858600768 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints/10.
I0425 13:49:49.902312 135413858600768 jax_array_handlers.py:360] Scheduling D2H of 153 prioritized jax.Array.
I0425 13:49:49.902422 135413858600768 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 13:49:49.937509 135413858600768 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.037713s
I0425 13:49:49.937658 135413858600768 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 29.148 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.05292844772338867 s) (per-host)
I0425 13:49:49.937711 135413858600768 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.052994s (batch_requests_ready=0.005624s, total_serialization_initiated=0.047297s, others=0.000072s)
I0425 13:49:49.937808 135413858600768 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.057083s (all_items=0.000015s, per_item={'items': '0.00001550'}, temp_paths=0.057068)
I0425 13:49:49.938524 135413858600768 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.33 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints/10.
I0425 13:49:49.938862 135285421631232 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 14:09:49.938825
I0425 13:49:49.947732 135413858600768 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=10] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 13:49:49.948012 135282727335680 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 13:49:49.948157 135413858600768 standard_logger.py:34] {'step': 10, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777124986.9375541, 'wait_for_prev_duration_secs': 2.6675033569335938, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777124989.6071446, 'checkpointer_blocking_duration_secs': 0.33185863494873047, 'get_old_steps_start_time': 1777124989.9390266, 'get_old_steps_duration_secs': 2.9087066650390625e-05, 'checkpoint_manager_blocking_start_time': 1777124986.93566, 'checkpoint_manager_blocking_duration_secs': 3.0124616622924805}
I0425 13:49:49.948328 135413858600768 checkpointing.py:409] Started an asynchronous checkpoint save for step 10
I0425 13:49:49.949003 135413858600768 metric_logger.py:196] completed step: 9, seconds: 0.008, TFLOP/s/device: 1703.929, Tokens/s/device: 256834.713, total_weights: 65536, loss: 10.656, lm_loss: 10.656, perplexity: 42467.320
I0425 13:49:49.960549 135413858600768 metric_logger.py:196] completed step: 10, seconds: 0.158, TFLOP/s/device: 85.768, Tokens/s/device: 12927.905, total_weights: 65536, loss: 10.636, lm_loss: 10.636, perplexity: 41601.941
I0425 13:49:50.112444 135413858600768 metric_logger.py:196] completed step: 11, seconds: 3.327, TFLOP/s/device: 4.083, Tokens/s/device: 615.480, total_weights: 65536, loss: 10.618, lm_loss: 10.618, perplexity: 40849.570
I0425 13:49:50.675924 135413858600768 metric_logger.py:196] completed step: 12, seconds: 0.010, TFLOP/s/device: 1336.132, Tokens/s/device: 201396.401, total_weights: 65536, loss: 10.602, lm_loss: 10.602, perplexity: 40203.926
I0425 13:49:50.832935 135413858600768 metric_logger.py:196] completed step: 13, seconds: 0.554, TFLOP/s/device: 24.535, Tokens/s/device: 3698.193, total_weights: 65536, loss: 10.588, lm_loss: 10.588, perplexity: 39652.145
I0425 13:49:50.989683 135413858600768 metric_logger.py:196] completed step: 14, seconds: 0.163, TFLOP/s/device: 83.429, Tokens/s/device: 12575.295, total_weights: 65536, loss: 10.577, lm_loss: 10.577, perplexity: 39212.879
I0425 13:49:51.146497 135413858600768 metric_logger.py:196] completed step: 15, seconds: 0.157, TFLOP/s/device: 86.653, Tokens/s/device: 13061.308, total_weights: 65536, loss: 10.568, lm_loss: 10.568, perplexity: 38879.223
I0425 13:49:51.303339 135413858600768 metric_logger.py:196] completed step: 16, seconds: 0.157, TFLOP/s/device: 86.582, Tokens/s/device: 13050.571, total_weights: 65536, loss: 10.562, lm_loss: 10.562, perplexity: 38619.105
I0425 13:49:51.460118 135413858600768 metric_logger.py:196] completed step: 17, seconds: 0.157, TFLOP/s/device: 86.600, Tokens/s/device: 13053.233, total_weights: 65536, loss: 10.556, lm_loss: 10.556, perplexity: 38395.816
I0425 13:49:51.616877 135413858600768 metric_logger.py:196] completed step: 18, seconds: 0.157, TFLOP/s/device: 86.786, Tokens/s/device: 13081.330, total_weights: 65536, loss: 10.552, lm_loss: 10.552, perplexity: 38236.652
I0425 13:49:51.775592 135413858600768 checkpointing.py:794] Waiting for step 19 to finish before checkpoint...
I0425 13:49:51.776846 135413858600768 checkpointing.py:798] Waited 0.001264333724975586 seconds for step 19 to finish before starting checkpointing.
I0425 13:49:51.778828 135413858600768 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=10][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 13:49:55.596451 135283282540288 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 153 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints/10/items/array_metadatas/process_6
I0425 13:50:10.763076 135285421631232 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 75.665 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 20.878326892852783 s) (per-host)
I0425 13:50:10.763196 135285421631232 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 20.824223s.
I0425 13:50:18.877918 135285421631232 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 28.938927s.
I0425 13:50:18.878219 135282727335680 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 13:50:18.878358 135282727335680 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 13:50:18.878412 135282727335680 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=10] CheckpointManager Save Finalize is syncing with other hosts...
I0425 13:50:18.880866 135282727335680 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=10] CheckpointManager Save Finalize is done on all hosts.
I0425 13:50:18.881032 135413858600768 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=10][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=10.
W0425 13:50:18.881164 135413858600768 checkpoint_manager.py:1452] Waiting for previous save to complete took 27.102340 seconds. If this number is high, consider checkpointing less frequently.
I0425 13:50:18.882887 135413858600768 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 19
I0425 13:50:18.884872 135413858600768 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints/19.
I0425 13:50:19.174561 135413858600768 jax_array_handlers.py:360] Scheduling D2H of 153 prioritized jax.Array.
I0425 13:50:19.174715 135413858600768 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 13:50:19.213666 135413858600768 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.041581s
I0425 13:50:19.213811 135413858600768 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 27.414 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.0562746524810791 s) (per-host)
I0425 13:50:19.213859 135413858600768 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.056333s (batch_requests_ready=0.005669s, total_serialization_initiated=0.050601s, others=0.000063s)
I0425 13:50:19.213947 135413858600768 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.060270s (all_items=0.000011s, per_item={'items': '0.00001073'}, temp_paths=0.060259)
I0425 13:50:19.214668 135413858600768 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.33 seconds. Continuing save @ gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints/19.
I0425 13:50:19.215001 135282727335680 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 14:10:19.214963
I0425 13:50:19.673412 135413858600768 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=19] Starting CheckpointManager Save Finalize thread=save_finalize
I0425 13:50:19.673781 135283265754880 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save.
I0425 13:50:19.673949 135413858600768 standard_logger.py:34] {'step': 19, 'event_type': 'save', 'directory': 'gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777124991.7788024, 'wait_for_prev_duration_secs': 27.10233974456787, 'time_between_consecutive_saves_sec': 2.1738975048065186, 'checkpointer_blocking_start_time': 1777125018.8829262, 'checkpointer_blocking_duration_secs': 0.33223772048950195, 'get_old_steps_start_time': 1777125019.2151825, 'get_old_steps_duration_secs': 2.574920654296875e-05, 'checkpoint_manager_blocking_start_time': 1777124991.777182, 'checkpoint_manager_blocking_duration_secs': 27.89673089981079}
I0425 13:50:19.674075 135413858600768 checkpointing.py:409] Started an asynchronous checkpoint save for step 19
I0425 13:50:19.674137 135413858600768 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=19][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0425 13:50:24.443926 135283274147584 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 153 array_metadata.ArrayMetadata to gs://lance-maxtext/nnx_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/nnx_xpk_feat_nnx_post_train_fixes_20260425_121355_05_fp8/checkpoints/19/items/array_metadatas/process_6
I0425 13:50:40.123450 135282727335680 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 75.349 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 20.96586513519287 s) (per-host)
I0425 13:50:40.123590 135282727335680 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 20.908462s.
I0425 13:50:47.077143 135282727335680 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 27.861997s.
I0425 13:50:47.077413 135283265754880 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save.
I0425 13:50:47.077472 135283265754880 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save.
I0425 13:50:47.077520 135283265754880 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=19] CheckpointManager Save Finalize is syncing with other hosts...
I0425 13:50:47.080069 135283265754880 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=19] CheckpointManager Save Finalize is done on all hosts.
I0425 13:50:47.080240 135413858600768 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=19][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=19.
I0425 13:50:47.080429 135413858600768 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0425 13:50:47.081475 135413858600768 metric_logger.py:196] completed step: 19, seconds: 0.157, TFLOP/s/device: 86.673, Tokens/s/device: 13064.224, 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 13:50:57 UTC 2026
EXIT_CODE=0