MaxView

XPK Start: Wed Apr 22 22:04:11 UTC 2026
PyTorch was not found. Models won't be available and only tokenizers, configuration and file/data utilities can be used.
`rope_parameters`'s factor field must be a float >= 1, got 40
`rope_parameters`'s beta_fast field must be a float, got 32
`rope_parameters`'s beta_slow field must be a float, got 1
DeepseekV32Config got `key=rope_scaling` in kwargs but hasn't set it as attribute. For RoPE standardization you need to set `self.rope_parameters` in model's config. 
2026-04-22 22:04:36.455944: E external/local_xla/xla/stream_executor/cuda/cuda_platform.cc:51] failed call to cuInit: INTERNAL: CUDA error: Failed call to cuInit: UNKNOWN ERROR (303)
I0422 22:04:36.666867 139422770493248 max_utils.py:273] Attempting to initialize the jax distributed system...
I0422 22:04:45.707329 139422770493248 distributed.py:149] Starting JAX distributed service on [::]:8482
I0422 22:04:45.709669 139422770493248 distributed.py:172] Connecting to JAX distributed service on mt-11-optimizer-offload-ly949-slice-job-0-0.mt-11-optimizer-offload-ly949:8482
I0422 22:04:46.976846 139422770493248 max_utils.py:284] Jax distributed system initialized!
I0422 22:04:53.083441 139422770493248 max_utils.py:800] System Information: Jax Version: 0.9.2
I0422 22:04:53.083547 139422770493248 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0422 22:04:53.083586 139422770493248 max_utils.py:802] System Information: Jax Backend: PJRT C API
TFRT TPU v6 lite
Built on Mar 4 2026 11:32:08 (1772652728) cl/878335365
I0422 22:04:53.083625 139422770493248 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing.
I0422 22:04:53.773833 139422770493248 maxtext_utils.py:1565] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0422 22:04:53.774123 139422770493248 checkpointing.py:677] Setting up checkpoint logger...
I0422 22:04:53.774184 139422770493248 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True
I0422 22:04:53.774252 139422770493248 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None
I0422 22:04:53.774607 139422770493248 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 0x7ecd2ce4f590>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0422 22:04:56.761072 139422770493248 checkpointing.py:265] Enabling policy for fixed interval checkpointing.
I0422 22:04:56.761315 139422770493248 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 0x7eb8f054fcb0>}, handler_registry=None
I0422 22:04:56.761559 139422770493248 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7eb8f054fcb0>` for item "items" and save args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>` to `_handler_registry`.
I0422 22:04:56.761607 139422770493248 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7eb8f05533e0>` for item "metrics" and save args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>` to `_handler_registry`.
I0422 22:04:56.761643 139422770493248 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 0x7eb8f054fcb0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7eb8f054fcb0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7eb8f05533e0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7eb8f05533e0>}).
I0422 22:04:56.761978 139422770493248 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34
I0422 22:04:56.762051 139422770493248 async_checkpointer.py:192] [process=5][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7eb8f036b2e0> timeout: 1200 secs and primary_host=0 for async checkpoint writes
I0422 22:04:58.757545 139422770493248 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints
I0422 22:04:58.785373 139422770493248 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_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7ecc20cebf50>
I0422 22:04:58.785505 139422770493248 checkpointing.py:301] Checkpoint manager created!
I0422 22:04:59.722582 139422770493248 nnx_wrappers.py:453] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0422 22:04:59.722713 139422770493248 nnx_wrappers.py:453] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 22:05:00.106055 139422770493248 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 22:05:00.106143 139422770493248 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 22:05:00.122937 139422770493248 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0422 22:05:00.122998 139422770493248 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None).
I0422 22:05:00.146976 139422770493248 attentions.py:1154] attentions/query Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 22:05:00.147047 139422770493248 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 22:05:00.163740 139422770493248 attentions.py:1155] attentions/key Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 22:05:00.163800 139422770493248 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 22:05:00.180577 139422770493248 attentions.py:1156] attentions/value Logical: bfloat16[32,2048,16,128].................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim').
I0422 22:05:00.180636 139422770493248 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 22:05:00.205562 139422770493248 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0422 22:05:00.205631 139422770493248 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None).
I0422 22:05:00.226777 139422770493248 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0422 22:05:00.226846 139422770493248 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None).
I0422 22:05:00.445808 139422770493248 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint
I0422 22:05:00.445920 139422770493248 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint.
fsdp: 32
I0422 22:05:01.875930 139422770493248 maxtext_utils.py:1668]  params/params/decoder/decoder_norm/scale
    Shape:     float32[2048]
    Logical:   P('norm',)
    Physical:  (None,)
I0422 22:05:01.876081 139422770493248 maxtext_utils.py:1668]  params/params/decoder/layers/mlp/wi_0/kernel
    Shape:     float32[2048,16,7168]
    Logical:   P('embed', 'layers', 'mlp')
    Physical:  ('fsdp', None, None)
I0422 22:05:01.876157 139422770493248 maxtext_utils.py:1668]  params/params/decoder/layers/mlp/wi_1/kernel
    Shape:     float32[2048,16,7168]
    Logical:   P('embed', 'layers', 'mlp')
    Physical:  ('fsdp', None, None)
I0422 22:05:01.876249 139422770493248 maxtext_utils.py:1668]  params/params/decoder/layers/mlp/wo/kernel
    Shape:     float32[7168,16,2048]
    Logical:   P('mlp', 'layers', 'embed')
    Physical:  (None, None, 'fsdp')
I0422 22:05:01.876334 139422770493248 maxtext_utils.py:1668]  params/params/decoder/layers/post_self_attention_layer_norm/scale
    Shape:     float32[2048,16]
    Logical:   P('norm', 'layers')
    Physical:  (None, None)
I0422 22:05:01.876397 139422770493248 maxtext_utils.py:1668]  params/params/decoder/layers/pre_self_attention_layer_norm/scale
    Shape:     float32[2048,16]
    Logical:   P('norm', 'layers')
    Physical:  (None, None)
I0422 22:05:01.876477 139422770493248 maxtext_utils.py:1668]  params/params/decoder/layers/self_attention/key/kernel
    Shape:     float32[2048,16,16,128]
    Logical:   P('embed', 'layers', 'kv_heads', 'kv_head_dim')
    Physical:  ('fsdp', None, None, None)
I0422 22:05:01.876557 139422770493248 maxtext_utils.py:1668]  params/params/decoder/layers/self_attention/out/kernel
    Shape:     float32[16,16,128,2048]
    Logical:   P('heads', 'layers', 'kv', 'embed')
    Physical:  (None, None, None, 'fsdp')
I0422 22:05:01.876619 139422770493248 maxtext_utils.py:1668]  params/params/decoder/layers/self_attention/query/kernel
    Shape:     float32[2048,16,16,128]
    Logical:   P('embed', 'layers', 'q_heads', 'kv')
    Physical:  ('fsdp', None, None, None)
I0422 22:05:01.876687 139422770493248 maxtext_utils.py:1668]  params/params/decoder/layers/self_attention/value/kernel
    Shape:     float32[2048,16,16,128]
    Logical:   P('embed', 'layers', 'kv_heads', 'kv_head_dim')
    Physical:  ('fsdp', None, None, None)
I0422 22:05:01.876767 139422770493248 maxtext_utils.py:1668]  params/params/decoder/logits_dense/kernel
    Shape:     float32[2048,32000]
    Logical:   P('embed_vocab', 'vocab')
    Physical:  ('fsdp', None)

I0422 22:05:01.876848 139422770493248 maxtext_utils.py:1668]  params/params/token_embedder/embedding
    Shape:     float32[32000,2048]
    Logical:   P('vocab', 'embed_vocab')
    Physical:  (None, 'fsdp')
I0422 22:05:02.372727 139422770493248 train.py:155] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0422 22:05:02.372818 139422770493248 train.py:155] train/xent Physical: float32[32,2048]............................................ ('fsdp', None).
I0422 22:05:02.388697 139422770493248 train.py:162] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length').
I0422 22:05:02.388754 139422770493248 train.py:162] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None).
I0422 22:05:13.263675 139422770493248 max_utils.py:791] Total memory size: 1.5 GB, Output size: 0.4 GB, Temp size: 1.1 GB, Argument size: 0.4 GB, Host temp size: 0.0 GB.
I0422 22:05:13.264438 139422770493248 metric_logger.py:301] number parameters: 1.104 billion
I0422 22:05:24.464021 139422770493248 checkpointing.py:772] Waiting for step 0 to finish before checkpoint...
I0422 22:05:24.820926 139422770493248 checkpointing.py:776] Waited 0.3568849563598633 seconds for step 0 to finish before starting checkpointing.
I0422 22:05:24.823608 139422770493248 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 22:05:24.825769 139422770493248 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 0
I0422 22:05:24.827317 139422770493248 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints/0.
I0422 22:05:25.170610 139422770493248 signaling_client.py:364] Using JaxDistributedSignalingClient
I0422 22:05:25.171642 139422770493248 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0422 22:05:25.171725 139422770493248 replica_slices.py:424] Transferring arrays to host memory with options: use_replica_parallel=True, min_slice_bytes_for_replica_parallel=None, max_replicas_for_replica_parallel=None, enable_pinned_host_transfer=False
I0422 22:05:25.454156 139422770493248 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.283617s
I0422 22:05:25.454331 139422770493248 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 5.335 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.2891349792480469 s) (per-host)
I0422 22:05:25.454386 139422770493248 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.289201s (batch_requests_ready=0.002293s, total_serialization_initiated=0.286834s, others=0.000074s)
I0422 22:05:25.454479 139422770493248 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.293316s (all_items=0.000019s, per_item={'items': '0.00001907'}, temp_paths=0.293297)
I0422 22:05:25.455298 139422770493248 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.63 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints/0.
I0422 22:05:25.455605 139293909579520 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 22:25:25.455568
I0422 22:05:25.460636 139422770493248 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 22:05:25.460899 139292835837696 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0422 22:05:25.461053 139422770493248 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776895524.8235893, 'wait_for_prev_duration_secs': 7.176399230957031e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776895524.8258078, 'checkpointer_blocking_duration_secs': 0.6299631595611572, 'get_old_steps_start_time': 1776895525.4557955, 'get_old_steps_duration_secs': 3.0994415283203125e-05, 'checkpoint_manager_blocking_start_time': 1776895524.8214943, 'checkpoint_manager_blocking_duration_secs': 0.6395206451416016}
I0422 22:05:25.461153 139422770493248 checkpointing.py:408] Started an asynchronous checkpoint save for step 0
I0422 22:05:25.461203 139422770493248 max_utils.py:750] 
Memstats: After params initialized:
I0422 22:05:25.461252 139422770493248 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_18(process=5,(2,4,0,0))
I0422 22:05:25.461285 139422770493248 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_19(process=5,(3,4,0,0))
I0422 22:05:25.461312 139422770493248 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_22(process=5,(2,5,0,0))
I0422 22:05:25.461337 139422770493248 max_utils.py:756] 	Using (GB) 0.43 / 31.25 (1.376000%) on TPU_23(process=5,(3,5,0,0))
I0422 22:05:25.770416 139422770493248 metric_logger.py:196] completed step: 0, seconds: 11.199, TFLOP/s/device: 1.213, Tokens/s/device: 182.866, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0422 22:05:25.946059 139422770493248 metric_logger.py:196] completed step: 1, seconds: 1.305, TFLOP/s/device: 10.412, Tokens/s/device: 1569.456, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875
I0422 22:05:26.375146 139422770493248 metric_logger.py:196] completed step: 2, seconds: 0.028, TFLOP/s/device: 477.311, Tokens/s/device: 71945.479, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129
I0422 22:05:26.522450 139422770493248 metric_logger.py:196] completed step: 3, seconds: 0.429, TFLOP/s/device: 31.666, Tokens/s/device: 4773.047, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.203
I0422 22:05:26.817909 139422770493248 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 88.808, Tokens/s/device: 13386.146, total_weights: 65536, loss: 9.277, lm_loss: 9.277, perplexity: 10694.614
I0422 22:05:26.823626 139422770493248 metric_logger.py:196] completed step: 5, seconds: 0.147, TFLOP/s/device: 92.260, Tokens/s/device: 13906.430, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.717
I0422 22:05:29.383819    2780 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com
I0422 22:05:31.469295 139293852931840 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_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints/0/items/array_metadatas/process_5
I0422 22:05:49.717351 139422770493248 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.916, Tokens/s/device: 6920.953, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.759
I0422 22:05:49.864678 139422770493248 metric_logger.py:196] completed step: 7, seconds: 22.747, TFLOP/s/device: 0.597, Tokens/s/device: 90.034, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4376.905
I0422 22:05:50.012183 139422770493248 metric_logger.py:196] completed step: 8, seconds: 0.152, TFLOP/s/device: 89.235, Tokens/s/device: 13450.500, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3846.406
I0422 22:05:50.158913 139422770493248 checkpointing.py:772] Waiting for step 9 to finish before checkpoint...
I0422 22:05:50.159516 139422770493248 checkpointing.py:776] Waited 0.0006225109100341797 seconds for step 9 to finish before starting checkpointing.
I0422 22:05:50.162820 139422770493248 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 22:06:01.886945 139293909579520 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 43.015 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 36.72170114517212 s) (per-host)
I0422 22:06:01.887062 139293909579520 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.431329s.
I0422 22:06:12.041311 139293909579520 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 46.585562s.
I0422 22:06:12.041526 139292835837696 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 22:06:12.041590 139292835837696 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0422 22:06:12.041639 139292835837696 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0422 22:06:12.046376 139292835837696 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0422 22:06:12.046542 139422770493248 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.
W0422 22:06:12.046704 139422770493248 checkpoint_manager.py:1452] Waiting for previous save to complete took 21.883878 seconds. If this number is high, consider checkpointing less frequently.
I0422 22:06:12.048436 139422770493248 checkpoint_manager.py:1512] [process=5] Saving checkpoint at step 9
I0422 22:06:12.050399 139422770493248 event_tracking.py:70] [process=5] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints/9.
I0422 22:06:12.751623 139422770493248 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array.
I0422 22:06:12.751729 139422770493248 replica_slices.py:424] Transferring arrays to host memory with options: use_replica_parallel=True, min_slice_bytes_for_replica_parallel=None, max_replicas_for_replica_parallel=None, enable_pinned_host_transfer=False
I0422 22:06:12.786453 139422770493248 base_pytree_checkpoint_handler.py:154] [process=5][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.036098s
I0422 22:06:12.786617 139422770493248 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/blocking_gbytes_per_sec: 38.953 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.03960108757019043 s) (per-host)
I0422 22:06:12.786681 139422770493248 base_pytree_checkpoint_handler.py:768] [process=5][thread=MainThread] Initiated Pytree async_save. Time taken: 0.039675s (batch_requests_ready=0.001873s, total_serialization_initiated=0.037721s, others=0.000081s)
I0422 22:06:12.786773 139422770493248 composite_checkpoint_handler.py:715] [process=5][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.044018s (all_items=0.000015s, per_item={'items': '0.00001454'}, temp_paths=0.044003)
I0422 22:06:12.787449 139422770493248 event_tracking.py:125] [process=5] [async] Finished blocking save in 0.74 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints/9.
I0422 22:06:12.787783 139292835837696 async_checkpointer.py:76] [process=5][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-22 22:26:12.787747
I0422 22:06:12.789741 139422770493248 checkpoint_manager.py:1560] [process=5][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0422 22:06:12.790034 139293882296064 async_checkpointer.py:280] [process=5][thread=save_finalize] Waiting for background save thread=async_save.
I0422 22:06:12.790193 139422770493248 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_test_pipeline_scan_nnx_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776895550.1627903, 'wait_for_prev_duration_secs': 21.883878231048584, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776895572.0484748, 'checkpointer_blocking_duration_secs': 0.739447832107544, 'get_old_steps_start_time': 1776895572.7879465, 'get_old_steps_duration_secs': 2.9325485229492188e-05, 'checkpoint_manager_blocking_start_time': 1776895550.1597707, 'checkpoint_manager_blocking_duration_secs': 22.630387783050537}
I0422 22:06:12.790304 139422770493248 checkpointing.py:408] Started an asynchronous checkpoint save for step 9
I0422 22:06:12.790350 139422770493248 checkpoint_manager.py:2020] [process=5][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0422 22:06:19.069969 139293852931840 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_20260422_212603/linen_xpk_test_pipeline_scan_nnx_20260422_212603_11_optimizer_offload_false/checkpoints/9/items/array_metadatas/process_5
I0422 22:06:55.285809 139292835837696 base_pytree_checkpoint_handler.py:130] [process=5] /jax/orbax/write/gbytes_per_sec: 37.133 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 42.53875422477722 s) (per-host)
I0422 22:06:55.285931 139292835837696 async_checkpointer.py:90] [process=5][thread=async_save] 3 Handler Commit operations completed. Time taken: 42.498038s.
I0422 22:07:04.407670 139292835837696 async_checkpointer.py:160] [process=5][thread=async_save] Background save thread done. Time taken: 51.619749s.
I0422 22:07:04.407947 139293882296064 async_checkpointer.py:288] [process=5][thread=save_finalize] Done with waiting for background save thread=async_save.
I0422 22:07:04.408067 139293882296064 async_checkpointer.py:298] [process=5][thread=save_finalize] No errors found in background save thread=async_save.
I0422 22:07:04.408116 139293882296064 checkpoint_manager.py:2137] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0422 22:07:04.409854 139293882296064 checkpoint_manager.py:2146] [process=5][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0422 22:07:04.410033 139422770493248 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.
I0422 22:07:04.410177 139422770493248 checkpoint_manager.py:2009] [process=5][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0422 22:07:04.411113 139422770493248 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.245, Tokens/s/device: 13904.164, total_weights: 65536, loss: 8.179, lm_loss: 8.179, perplexity: 3564.635
Per train step:
 Total TFLOPs: 13.59 
 split as 93.93% learnable weight flops and 6.07% attention flops
XPK End: Wed Apr 22 22:07:16 UTC 2026
EXIT_CODE=0