main (59e0f1759) vs feat/nnx-post-train-fixes (28b1e4a16)| Metric | main 59e0f1759 | feat/nnx-post-train-fixes 28b1e4a16 | Diff (feat/nnx-post-train-fixes − main) |
|---|---|---|---|
| Parameters | 1.104 billion | 1.104 billion | — |
| Final loss | 8.1790 | 8.1790 | 0 |
| TFLOP/s | 92.178 | 92.232 | +0.054 |
| Tok/s | 13894.1 | 13902.3 | +8.206 |
| Avg s/step | 2.719 | 2.742 | +0.023 |
| Memory % | 1.38 | 1.38 | 0 |
| JAX | 0.9.2 | 0.9.2 | — |
Diff = branch value − main value. Green = branch improved. Red = branch regressed.
XPK Start: Sat Apr 25 07:29:57 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 07:30:21.840068: 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 07:30:22.043651 140086283003712 max_utils.py:273] Attempting to initialize the jax distributed system... I0425 07:30:31.085296 140086283003712 distributed.py:149] Starting JAX distributed service on [::]:8482 I0425 07:30:31.087654 140086283003712 distributed.py:172] Connecting to JAX distributed service on mt-07-eval-6hjmi-slice-job-0-0.mt-07-eval-6hjmi:8482 I0425 07:30:32.479485 140086283003712 max_utils.py:284] Jax distributed system initialized! I0425 07:30:38.608567 140086283003712 max_utils.py:800] System Information: Jax Version: 0.9.2 I0425 07:30:38.608674 140086283003712 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0425 07:30:38.608713 140086283003712 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 07:30:38.608748 140086283003712 train_utils.py:361] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing. I0425 07:30:39.313864 140086283003712 maxtext_utils.py:1604] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1) I0425 07:30:39.314153 140086283003712 checkpointing.py:677] Setting up checkpoint logger... I0425 07:30:39.314209 140086283003712 checkpointing.py:233] Creating checkpoint manager with ocdbt=True and zarr3=True I0425 07:30:39.314256 140086283003712 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None I0425 07:30:39.314591 140086283003712 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 0x7f67c5b14dd0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0425 07:30:42.176279 140086283003712 checkpointing.py:265] Enabling policy for fixed interval checkpointing. I0425 07:30:42.176521 140086283003712 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 0x7f669ccbbe30>}, handler_registry=None I0425 07:30:42.176757 140086283003712 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f669ccbbe30>` 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 07:30:42.176805 140086283003712 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f53803290a0>` 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 07:30:42.176841 140086283003712 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 0x7f669ccbbe30>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7f669ccbbe30>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f53803290a0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7f53803290a0>}). I0425 07:30:42.177196 140086283003712 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34 I0425 07:30:42.177281 140086283003712 async_checkpointer.py:192] [process=6][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7f52a06e5760> timeout: 1200 secs and primary_host=0 for async checkpoint writes I0425 07:30:43.020732 140086283003712 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints I0425 07:30:43.052524 140086283003712 checkpoint_manager.py:929] [process=6][thread=MainThread] CheckpointManager created, primary_host=0, CheckpointManagerOptions=CheckpointManagerOptions(save_interval_steps=1, max_to_keep=None, keep_time_interval=None, keep_period=None, should_keep_fn=None, best_fn=None, best_mode='max', keep_checkpoints_without_metrics=True, step_prefix=None, step_format_fixed_length=None, step_name_format=None, create=True, cleanup_tmp_directories=False, save_on_steps=frozenset(), single_host_load_and_broadcast=False, todelete_subdir=None, todelete_full_path=None, enable_background_delete=False, read_only=False, enable_async_checkpointing=True, async_options=None, multiprocessing_options=MultiprocessingOptions(primary_host=0, active_processes=None, barrier_sync_key_prefix=None), should_save_fn=None, file_options=FileOptions(path_permission_mode=None), save_root_metadata=True, temporary_path_class=None, save_decision_policy=FixedIntervalPolicy(interval=10), preservation_policy=LatestN(n=None), prevent_write_metrics=False, enable_should_save_is_saving_in_progress_check=True, enable_per_process_directory_creation=False, lightweight_initialize=False), root_directory=gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7f538032a300> I0425 07:30:43.052660 140086283003712 checkpointing.py:301] Checkpoint manager created! I0425 07:30:43.982335 140086283003712 nnx_wrappers.py:437] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0425 07:30:43.982451 140086283003712 nnx_wrappers.py:437] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None). I0425 07:30:44.365956 140086283003712 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn'). I0425 07:30:44.366050 140086283003712 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None). I0425 07:30:44.382715 140086283003712 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn'). I0425 07:30:44.382778 140086283003712 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None). I0425 07:30:44.406744 140086283003712 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 07:30:44.406813 140086283003712 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None). I0425 07:30:44.423426 140086283003712 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 07:30:44.423493 140086283003712 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None). I0425 07:30:44.440217 140086283003712 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 07:30:44.440278 140086283003712 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None). I0425 07:30:44.465201 140086283003712 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch_attn', 'activation_length_attn', 'activation_heads', 'activation_kv'). I0425 07:30:44.465271 140086283003712 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None). I0425 07:30:44.486516 140086283003712 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0425 07:30:44.486581 140086283003712 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None). I0425 07:30:44.696981 140086283003712 checkpointing.py:577] checkpoint manager exists so trying to load this run's existing checkpoint I0425 07:30:44.697087 140086283003712 checkpointing.py:665] No existing checkpoints found, not restoring checkpoint. fsdp: 32 I0425 07:30:46.132336 140086283003712 maxtext_utils.py:1707] params/params/decoder/decoder_norm/scale Shape: float32[2048] Logical: P('norm',) Physical: (None,) I0425 07:30:46.132464 140086283003712 maxtext_utils.py:1707] params/params/decoder/layers/mlp/wi_0/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0425 07:30:46.132516 140086283003712 maxtext_utils.py:1707] params/params/decoder/layers/mlp/wi_1/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0425 07:30:46.132574 140086283003712 maxtext_utils.py:1707] params/params/decoder/layers/mlp/wo/kernel Shape: float32[7168,16,2048] Logical: P('mlp', 'layers', 'embed') Physical: (None, None, 'fsdp') I0425 07:30:46.132627 140086283003712 maxtext_utils.py:1707] params/params/decoder/layers/post_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0425 07:30:46.132666 140086283003712 maxtext_utils.py:1707] params/params/decoder/layers/pre_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0425 07:30:46.132723 140086283003712 maxtext_utils.py:1707] 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) I0425 07:30:46.132776 140086283003712 maxtext_utils.py:1707] 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') I0425 07:30:46.132816 140086283003712 maxtext_utils.py:1707] 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) I0425 07:30:46.132851 140086283003712 maxtext_utils.py:1707] 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) I0425 07:30:46.132899 140086283003712 maxtext_utils.py:1707] params/params/decoder/logits_dense/kernel Shape: float32[2048,32000] Logical: P('embed_vocab', 'vocab') Physical: ('fsdp', None) I0425 07:30:46.132946 140086283003712 maxtext_utils.py:1707] params/params/token_embedder/embedding Shape: float32[32000,2048] Logical: P('vocab', 'embed_vocab') Physical: (None, 'fsdp') I0425 07:30:46.627427 140086283003712 train.py:155] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length'). I0425 07:30:46.627525 140086283003712 train.py:155] train/xent Physical: float32[32,2048]............................................ ('fsdp', None). I0425 07:30:46.643202 140086283003712 train.py:162] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length'). I0425 07:30:46.643266 140086283003712 train.py:162] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None). I0425 07:30:57.703543 140086283003712 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 07:30:57.704318 140086283003712 metric_logger.py:301] number parameters: 1.104 billion I0425 07:31:09.397899 140086283003712 checkpointing.py:772] Waiting for step 0 to finish before checkpoint... I0425 07:31:09.551964 140086283003712 checkpointing.py:776] Waited 0.15404701232910156 seconds for step 0 to finish before starting checkpointing. I0425 07:31:09.554126 140086283003712 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0425 07:31:09.555714 140086283003712 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 0 I0425 07:31:09.557067 140086283003712 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints/0. I0425 07:31:10.319557 140086283003712 signaling_client.py:364] Using JaxDistributedSignalingClient I0425 07:31:10.320452 140086283003712 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array. I0425 07:31:10.320521 140086283003712 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 07:31:10.596589 140086283003712 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.277117s I0425 07:31:10.596763 140086283003712 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 5.454 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.2828233242034912 s) (per-host) I0425 07:31:10.596818 140086283003712 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.282888s (batch_requests_ready=0.002419s, total_serialization_initiated=0.280397s, others=0.000072s) I0425 07:31:10.596910 140086283003712 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.287235s (all_items=0.000030s, per_item={'items': '0.00003004'}, temp_paths=0.287205) I0425 07:31:10.597758 140086283003712 event_tracking.py:125] [process=6] [async] Finished blocking save in 1.04 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints/0. I0425 07:31:10.598088 139958035650304 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 07:51:10.598049 I0425 07:31:10.603577 140086283003712 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0425 07:31:10.603824 139955892373248 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save. I0425 07:31:10.603972 140086283003712 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777102269.5541072, 'wait_for_prev_duration_secs': 6.365776062011719e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777102269.555753, 'checkpointer_blocking_duration_secs': 1.0424506664276123, 'get_old_steps_start_time': 1777102270.5982287, 'get_old_steps_duration_secs': 3.1948089599609375e-05, 'checkpoint_manager_blocking_start_time': 1777102269.5524402, 'checkpoint_manager_blocking_duration_secs': 1.0514945983886719} I0425 07:31:10.604077 140086283003712 checkpointing.py:408] Started an asynchronous checkpoint save for step 0 I0425 07:31:10.604134 140086283003712 max_utils.py:750] Memstats: After params initialized: I0425 07:31:10.604180 140086283003712 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_24(process=6,(0,6,0,0)) I0425 07:31:10.604209 140086283003712 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_25(process=6,(1,6,0,0)) I0425 07:31:10.604236 140086283003712 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_28(process=6,(0,7,0,0)) I0425 07:31:10.604261 140086283003712 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_29(process=6,(1,7,0,0)) I0425 07:31:10.913857 140086283003712 metric_logger.py:196] completed step: 0, seconds: 11.693, TFLOP/s/device: 1.162, Tokens/s/device: 175.140, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875 I0425 07:31:11.098443 140086283003712 metric_logger.py:196] completed step: 1, seconds: 1.514, TFLOP/s/device: 8.972, Tokens/s/device: 1352.333, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875 I0425 07:31:11.526601 140086283003712 metric_logger.py:196] completed step: 2, seconds: 0.038, TFLOP/s/device: 362.101, Tokens/s/device: 54579.858, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129 I0425 07:31:11.673859 140086283003712 metric_logger.py:196] completed step: 3, seconds: 0.428, TFLOP/s/device: 31.722, Tokens/s/device: 4781.472, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.203 I0425 07:31:11.969033 140086283003712 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 88.843, Tokens/s/device: 13391.310, total_weights: 65536, loss: 9.277, lm_loss: 9.277, perplexity: 10694.614 I0425 07:31:11.974947 140086283003712 metric_logger.py:196] completed step: 5, seconds: 0.147, TFLOP/s/device: 92.298, Tokens/s/device: 13912.193, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.717 I0425 07:31:14.071102 2797 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com I0425 07:31:16.094603 139955900765952 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints/0/items/array_metadatas/process_6 I0425 07:31:33.718538 140086283003712 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.964, Tokens/s/device: 6928.141, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.759 I0425 07:31:33.865911 140086283003712 metric_logger.py:196] completed step: 7, seconds: 21.597, TFLOP/s/device: 0.629, Tokens/s/device: 94.828, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4376.905 I0425 07:31:34.012928 140086283003712 metric_logger.py:196] completed step: 8, seconds: 0.152, TFLOP/s/device: 89.351, Tokens/s/device: 13467.925, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3846.406 I0425 07:31:34.160906 140086283003712 checkpointing.py:772] Waiting for step 9 to finish before checkpoint... I0425 07:31:34.161579 140086283003712 checkpointing.py:776] Waited 0.0006940364837646484 seconds for step 9 to finish before starting checkpointing. I0425 07:31:34.163712 140086283003712 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0425 07:31:48.592410 139958035650304 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 41.266 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 38.27843165397644 s) (per-host) I0425 07:31:48.592535 139958035650304 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 37.993795s. I0425 07:31:56.068517 139958035650304 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 45.469760s. I0425 07:31:56.068814 139955892373248 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save. I0425 07:31:56.068938 139955892373248 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save. I0425 07:31:56.068987 139955892373248 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0425 07:31:56.071333 139955892373248 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0425 07:31:56.071525 140086283003712 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 07:31:56.071654 140086283003712 checkpoint_manager.py:1452] Waiting for previous save to complete took 21.907941 seconds. If this number is high, consider checkpointing less frequently. I0425 07:31:56.073552 140086283003712 checkpoint_manager.py:1512] [process=6] Saving checkpoint at step 9 I0425 07:31:56.075533 140086283003712 event_tracking.py:70] [process=6] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints/9. I0425 07:31:56.348145 140086283003712 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array. I0425 07:31:56.348239 140086283003712 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 07:31:56.383889 140086283003712 base_pytree_checkpoint_handler.py:154] [process=6][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.036847s I0425 07:31:56.384050 140086283003712 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/blocking_gbytes_per_sec: 37.652 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.0409693717956543 s) (per-host) I0425 07:31:56.384114 140086283003712 base_pytree_checkpoint_handler.py:768] [process=6][thread=MainThread] Initiated Pytree async_save. Time taken: 0.041030s (batch_requests_ready=0.002468s, total_serialization_initiated=0.038493s, others=0.000069s) I0425 07:31:56.384204 140086283003712 composite_checkpoint_handler.py:715] [process=6][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.045083s (all_items=0.000016s, per_item={'items': '0.00001597'}, temp_paths=0.045067) I0425 07:31:56.384886 140086283003712 event_tracking.py:125] [process=6] [async] Finished blocking save in 0.31 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints/9. I0425 07:31:56.385267 139955892373248 async_checkpointer.py:76] [process=6][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 07:51:56.385221 I0425 07:31:56.387278 140086283003712 checkpoint_manager.py:1560] [process=6][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0425 07:31:56.387579 139957531064064 async_checkpointer.py:280] [process=6][thread=save_finalize] Waiting for background save thread=async_save. I0425 07:31:56.387719 140086283003712 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777102294.163681, 'wait_for_prev_duration_secs': 21.907941341400146, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777102316.0735912, 'checkpointer_blocking_duration_secs': 0.31184887886047363, 'get_old_steps_start_time': 1777102316.3854637, 'get_old_steps_duration_secs': 3.719329833984375e-05, 'checkpoint_manager_blocking_start_time': 1777102294.1618028, 'checkpoint_manager_blocking_duration_secs': 22.22588062286377} I0425 07:31:56.387885 140086283003712 checkpointing.py:408] Started an asynchronous checkpoint save for step 9 I0425 07:31:56.387930 140086283003712 checkpoint_manager.py:2020] [process=6][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0425 07:32:01.765737 139955900765952 array_metadata_store.py:203] [process=6][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_main_20260425_071456/linen_xpk_main_20260425_071456_07_eval/checkpoints/9/items/array_metadatas/process_6 I0425 07:32:37.767421 139955892373248 base_pytree_checkpoint_handler.py:130] [process=6] /jax/orbax/write/gbytes_per_sec: 38.132 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 41.42431640625 s) (per-host) I0425 07:32:37.767536 139955892373248 async_checkpointer.py:90] [process=6][thread=async_save] 3 Handler Commit operations completed. Time taken: 41.382132s. I0425 07:32:45.928233 139955892373248 async_checkpointer.py:160] [process=6][thread=async_save] Background save thread done. Time taken: 49.542810s. I0425 07:32:45.928537 139957531064064 async_checkpointer.py:288] [process=6][thread=save_finalize] Done with waiting for background save thread=async_save. I0425 07:32:45.928684 139957531064064 async_checkpointer.py:298] [process=6][thread=save_finalize] No errors found in background save thread=async_save. I0425 07:32:45.928732 139957531064064 checkpoint_manager.py:2137] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0425 07:32:45.930227 139957531064064 checkpoint_manager.py:2146] [process=6][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0425 07:32:45.930412 140086283003712 checkpoint_manager.py:2032] [process=6][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9. I0425 07:32:45.930558 140086283003712 checkpoint_manager.py:2009] [process=6][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0425 07:32:45.931623 140086283003712 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.178, Tokens/s/device: 13894.071, 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: Sat Apr 25 07:32:57 UTC 2026 EXIT_CODE=0
XPK Start: Sat Apr 25 12:28:02 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 12:28:27.467722: 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 12:28:27.680385 137716323800896 max_utils.py:273] Attempting to initialize the jax distributed system... I0425 12:28:36.721681 137716323800896 distributed.py:149] Starting JAX distributed service on [::]:8482 I0425 12:28:36.724375 137716323800896 distributed.py:172] Connecting to JAX distributed service on mt-07-eval-2ihwx-slice-job-0-0.mt-07-eval-2ihwx:8482 I0425 12:28:37.914280 137716323800896 max_utils.py:284] Jax distributed system initialized! I0425 12:28:44.152518 137716323800896 max_utils.py:800] System Information: Jax Version: 0.9.2 I0425 12:28:44.152623 137716323800896 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0425 12:28:44.152663 137716323800896 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 12:28:44.152697 137716323800896 train_utils.py:391] WARNING: Sequence packing is essentially ignored for synthetic data. Please use a real dataset to use sequence packing. I0425 12:28:44.849256 137716323800896 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0425 12:28:44.849849 137716323800896 maxtext_utils.py:1771] Num_devices: 32, shape (1, 1, 1, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0425 12:28:44.850058 137716323800896 checkpointing.py:688] Setting up checkpoint logger... I0425 12:28:44.850117 137716323800896 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True I0425 12:28:44.850162 137716323800896 pytree_checkpoint_handler.py:592] save_device_host_concurrent_bytes=None I0425 12:28:44.850513 137716323800896 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 0x7d3ff191c140>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0425 12:28:47.683315 137716323800896 checkpointing.py:266] Enabling policy for fixed interval checkpointing. I0425 12:28:47.683551 137716323800896 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 0x7d2b900b8050>}, handler_registry=None I0425 12:28:47.683794 137716323800896 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7d2b900b8050>` 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 12:28:47.683843 137716323800896 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7d2b900ba060>` 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 12:28:47.683881 137716323800896 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 0x7d2b900b8050>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7d2b900b8050>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7d2b900ba060>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7d2b900ba060>}). I0425 12:28:47.684207 137716323800896 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.34 I0425 12:28:47.684278 137716323800896 async_checkpointer.py:192] [process=3][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>._fn at 0x7d2b705b5d00> timeout: 1200 secs and primary_host=0 for async checkpoint writes I0425 12:28:50.074703 137716323800896 checkpoint_manager.py:1812] Found 0 checkpoint steps in gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints I0425 12:28:50.112739 137716323800896 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/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7d2b900b5a00> I0425 12:28:50.112879 137716323800896 checkpointing.py:302] Checkpoint manager created! I0425 12:28:51.048449 137716323800896 nnx_wrappers.py:437] Unknown Logical: bfloat16[32,2048,2048]...................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0425 12:28:51.048560 137716323800896 nnx_wrappers.py:437] Unknown Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None). I0425 12:28:51.432327 137716323800896 attentions.py:1088] attentions/inputs_q Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn'). I0425 12:28:51.432426 137716323800896 attentions.py:1088] attentions/inputs_q Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None). I0425 12:28:51.449248 137716323800896 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[32,2048,2048]...................................... ('activation_batch_attn', 'activation_length_attn', 'activation_embed_attn'). I0425 12:28:51.449311 137716323800896 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[32,2048,2048]...................................... ('fsdp', None, None). I0425 12:28:51.473661 137716323800896 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 12:28:51.473738 137716323800896 attentions.py:1154] attentions/query Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None). I0425 12:28:51.490692 137716323800896 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 12:28:51.490756 137716323800896 attentions.py:1155] attentions/key Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None). I0425 12:28:51.508049 137716323800896 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 12:28:51.508110 137716323800896 attentions.py:1156] attentions/value Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None). I0425 12:28:51.533356 137716323800896 attentions.py:1198] attentions/out Logical: bfloat16[32,2048,16,128].................................... ('activation_batch_attn', 'activation_length_attn', 'activation_heads', 'activation_kv'). I0425 12:28:51.533427 137716323800896 attentions.py:1198] attentions/out Physical: bfloat16[32,2048,16,128].................................... ('fsdp', None, None, None). I0425 12:28:51.554343 137716323800896 linears.py:525] linears/x Logical: bfloat16[32,2048,7168]...................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0425 12:28:51.554407 137716323800896 linears.py:525] linears/x Physical: bfloat16[32,2048,7168]...................................... ('fsdp', None, None). I0425 12:28:51.773390 137716323800896 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint I0425 12:28:51.773504 137716323800896 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint. fsdp: 32 I0425 12:28:53.211078 137716323800896 maxtext_utils.py:1880] params/params/decoder/decoder_norm/scale Shape: float32[2048] Logical: P('norm',) Physical: (None,) I0425 12:28:53.211209 137716323800896 maxtext_utils.py:1880] params/params/decoder/layers/mlp/wi_0/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0425 12:28:53.211262 137716323800896 maxtext_utils.py:1880] params/params/decoder/layers/mlp/wi_1/kernel Shape: float32[2048,16,7168] Logical: P('embed', 'layers', 'mlp') Physical: ('fsdp', None, None) I0425 12:28:53.211321 137716323800896 maxtext_utils.py:1880] params/params/decoder/layers/mlp/wo/kernel Shape: float32[7168,16,2048] Logical: P('mlp', 'layers', 'embed') Physical: (None, None, 'fsdp') I0425 12:28:53.211376 137716323800896 maxtext_utils.py:1880] params/params/decoder/layers/post_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0425 12:28:53.211415 137716323800896 maxtext_utils.py:1880] params/params/decoder/layers/pre_self_attention_layer_norm/scale Shape: float32[2048,16] Logical: P('norm', 'layers') Physical: (None, None) I0425 12:28:53.211474 137716323800896 maxtext_utils.py:1880] 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) I0425 12:28:53.211528 137716323800896 maxtext_utils.py:1880] 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') I0425 12:28:53.211569 137716323800896 maxtext_utils.py:1880] 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) I0425 12:28:53.211607 137716323800896 maxtext_utils.py:1880] 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) I0425 12:28:53.211656 137716323800896 maxtext_utils.py:1880] params/params/decoder/logits_dense/kernel Shape: float32[2048,32000] Logical: P('embed_vocab', 'vocab') Physical: ('fsdp', None) I0425 12:28:53.211707 137716323800896 maxtext_utils.py:1880] params/params/token_embedder/embedding Shape: float32[32000,2048] Logical: P('vocab', 'embed_vocab') Physical: (None, 'fsdp') I0425 12:28:53.713364 137716323800896 train.py:157] train/xent Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length'). I0425 12:28:53.713462 137716323800896 train.py:157] train/xent Physical: float32[32,2048]............................................ ('fsdp', None). I0425 12:28:53.728976 137716323800896 train.py:164] train/z_loss Logical: float32[32,2048]............................................ ('activation_embed_and_logits_batch', 'activation_length'). I0425 12:28:53.729036 137716323800896 train.py:164] train/z_loss Physical: float32[32,2048]............................................ ('fsdp', None). I0425 12:29:04.823985 137716323800896 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 12:29:04.824767 137716323800896 metric_logger.py:301] number parameters: 1.104 billion I0425 12:29:16.240520 137716323800896 checkpointing.py:794] Waiting for step 0 to finish before checkpoint... I0425 12:29:16.394526 137716323800896 checkpointing.py:798] Waited 0.1539926528930664 seconds for step 0 to finish before starting checkpointing. I0425 12:29:16.397051 137716323800896 checkpoint_manager.py:2009] [process=3][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0425 12:29:16.398823 137716323800896 checkpoint_manager.py:1512] [process=3] Saving checkpoint at step 0 I0425 12:29:16.400244 137716323800896 event_tracking.py:70] [process=3] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints/0. I0425 12:29:17.136538 137716323800896 signaling_client.py:364] Using JaxDistributedSignalingClient I0425 12:29:17.137435 137716323800896 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array. I0425 12:29:17.137493 137716323800896 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 12:29:17.422736 137716323800896 base_pytree_checkpoint_handler.py:154] [process=3][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.286272s I0425 12:29:17.422909 137716323800896 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/blocking_gbytes_per_sec: 5.284 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.29192304611206055 s) (per-host) I0425 12:29:17.422995 137716323800896 base_pytree_checkpoint_handler.py:768] [process=3][thread=MainThread] Initiated Pytree async_save. Time taken: 0.292018s (batch_requests_ready=0.002209s, total_serialization_initiated=0.289706s, others=0.000103s) I0425 12:29:17.423101 137716323800896 composite_checkpoint_handler.py:715] [process=3][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.296280s (all_items=0.000019s, per_item={'items': '0.00001860'}, temp_paths=0.296261) I0425 12:29:17.423957 137716323800896 event_tracking.py:125] [process=3] [async] Finished blocking save in 1.03 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints/0. I0425 12:29:17.424257 137586368747264 async_checkpointer.py:76] [process=3][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 12:49:17.424225 I0425 12:29:17.426228 137716323800896 checkpoint_manager.py:1560] [process=3][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0425 12:29:17.426486 137585280145152 async_checkpointer.py:280] [process=3][thread=save_finalize] Waiting for background save thread=async_save. I0425 12:29:17.426588 137716323800896 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777120156.397032, 'wait_for_prev_duration_secs': 6.508827209472656e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777120156.3988616, 'checkpointer_blocking_duration_secs': 1.025545597076416, 'get_old_steps_start_time': 1777120157.4244318, 'get_old_steps_duration_secs': 2.9802322387695312e-05, 'checkpoint_manager_blocking_start_time': 1777120156.3950748, 'checkpoint_manager_blocking_duration_secs': 1.0314762592315674} I0425 12:29:17.426750 137716323800896 checkpointing.py:409] Started an asynchronous checkpoint save for step 0 I0425 12:29:17.426799 137716323800896 max_utils.py:750] Memstats: After params initialized: I0425 12:29:17.426847 137716323800896 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_10(process=3,(2,2,0,0)) I0425 12:29:17.426879 137716323800896 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_11(process=3,(3,2,0,0)) I0425 12:29:17.426906 137716323800896 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_14(process=3,(2,3,0,0)) I0425 12:29:17.426946 137716323800896 max_utils.py:756] Using (GB) 0.43 / 31.25 (1.376000%) on TPU_15(process=3,(3,3,0,0)) I0425 12:29:17.739972 137716323800896 metric_logger.py:196] completed step: 0, seconds: 11.416, TFLOP/s/device: 1.190, Tokens/s/device: 179.403, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875 I0425 12:29:17.908659 137716323800896 metric_logger.py:196] completed step: 1, seconds: 1.498, TFLOP/s/device: 9.070, Tokens/s/device: 1367.168, total_weights: 65536, loss: 10.874, lm_loss: 10.874, perplexity: 52779.875 I0425 12:29:18.325660 137716323800896 metric_logger.py:196] completed step: 2, seconds: 0.021, TFLOP/s/device: 636.280, Tokens/s/device: 95907.090, total_weights: 65536, loss: 10.262, lm_loss: 10.262, perplexity: 28637.129 I0425 12:29:18.473157 137716323800896 metric_logger.py:196] completed step: 3, seconds: 0.417, TFLOP/s/device: 32.568, Tokens/s/device: 4909.046, total_weights: 65536, loss: 9.734, lm_loss: 9.734, perplexity: 16889.203 I0425 12:29:18.768494 137716323800896 metric_logger.py:196] completed step: 4, seconds: 0.153, TFLOP/s/device: 88.859, Tokens/s/device: 13393.762, total_weights: 65536, loss: 9.277, lm_loss: 9.277, perplexity: 10694.614 I0425 12:29:18.774259 137716323800896 metric_logger.py:196] completed step: 5, seconds: 0.147, TFLOP/s/device: 92.263, Tokens/s/device: 13906.903, total_weights: 65536, loss: 8.892, lm_loss: 8.892, perplexity: 7270.717 I0425 12:29:20.314173 2795 google_auth_provider.cc:181] Running on GCE, using service account 562977990677-compute@developer.gserviceaccount.com I0425 12:29:22.344948 137585288537856 array_metadata_store.py:203] [process=3][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints/0/items/array_metadatas/process_3 I0425 12:29:40.772377 137716323800896 metric_logger.py:196] completed step: 6, seconds: 0.296, TFLOP/s/device: 45.906, Tokens/s/device: 6919.410, total_weights: 65536, loss: 8.592, lm_loss: 8.592, perplexity: 5390.759 I0425 12:29:40.919749 137716323800896 metric_logger.py:196] completed step: 7, seconds: 21.851, TFLOP/s/device: 0.622, Tokens/s/device: 93.724, total_weights: 65536, loss: 8.384, lm_loss: 8.384, perplexity: 4376.905 I0425 12:29:41.067018 137716323800896 metric_logger.py:196] completed step: 8, seconds: 0.152, TFLOP/s/device: 89.413, Tokens/s/device: 13477.231, total_weights: 65536, loss: 8.255, lm_loss: 8.255, perplexity: 3846.406 I0425 12:29:41.213625 137716323800896 checkpointing.py:794] Waiting for step 9 to finish before checkpoint... I0425 12:29:41.214339 137716323800896 checkpointing.py:798] Waited 0.0007340908050537109 seconds for step 9 to finish before starting checkpointing. I0425 12:29:41.216380 137716323800896 checkpoint_manager.py:2020] [process=3][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0425 12:29:54.320423 137586368747264 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/gbytes_per_sec: 42.474 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 37.189406871795654 s) (per-host) I0425 12:29:54.320546 137586368747264 async_checkpointer.py:90] [process=3][thread=async_save] 3 Handler Commit operations completed. Time taken: 36.896178s. I0425 12:30:01.392989 137586368747264 async_checkpointer.py:160] [process=3][thread=async_save] Background save thread done. Time taken: 43.968605s. I0425 12:30:01.393270 137585280145152 async_checkpointer.py:288] [process=3][thread=save_finalize] Done with waiting for background save thread=async_save. I0425 12:30:01.393402 137585280145152 async_checkpointer.py:298] [process=3][thread=save_finalize] No errors found in background save thread=async_save. I0425 12:30:01.393453 137585280145152 checkpoint_manager.py:2137] [process=3][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0425 12:30:01.394885 137585280145152 checkpoint_manager.py:2146] [process=3][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0425 12:30:01.395085 137716323800896 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. W0425 12:30:01.395227 137716323800896 checkpoint_manager.py:1452] Waiting for previous save to complete took 20.178844 seconds. If this number is high, consider checkpointing less frequently. I0425 12:30:01.397011 137716323800896 checkpoint_manager.py:1512] [process=3] Saving checkpoint at step 9 I0425 12:30:01.399146 137716323800896 event_tracking.py:70] [process=3] [async] Started save checkpoint @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints/9. I0425 12:30:01.697799 137716323800896 jax_array_handlers.py:360] Scheduling D2H of 39 prioritized jax.Array. I0425 12:30:01.697890 137716323800896 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 12:30:01.732251 137716323800896 base_pytree_checkpoint_handler.py:154] [process=3][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 0.035561s I0425 12:30:01.732422 137716323800896 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/blocking_gbytes_per_sec: 39.555 GiB/s (total gbytes: 1.5 GiB) (time elapsed: 0.03899860382080078 s) (per-host) I0425 12:30:01.732475 137716323800896 base_pytree_checkpoint_handler.py:768] [process=3][thread=MainThread] Initiated Pytree async_save. Time taken: 0.039061s (batch_requests_ready=0.001799s, total_serialization_initiated=0.037193s, others=0.000069s) I0425 12:30:01.732573 137716323800896 composite_checkpoint_handler.py:715] [process=3][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 0.043202s (all_items=0.000016s, per_item={'items': '0.00001645'}, temp_paths=0.043185) I0425 12:30:01.733309 137716323800896 event_tracking.py:125] [process=3] [async] Finished blocking save in 0.34 seconds. Continuing save @ gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints/9. I0425 12:30:01.733589 137585280145152 async_checkpointer.py:76] [process=3][thread=async_save] Background save thread started. Deadline for this save operation is 2026-04-25 12:50:01.733564 I0425 12:30:01.735610 137716323800896 checkpoint_manager.py:1560] [process=3][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0425 12:30:01.735918 137564832913152 async_checkpointer.py:280] [process=3][thread=save_finalize] Waiting for background save thread=async_save. I0425 12:30:01.736060 137716323800896 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1777120181.2163506, 'wait_for_prev_duration_secs': 20.17884373664856, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1777120201.3970497, 'checkpointer_blocking_duration_secs': 0.33664631843566895, 'get_old_steps_start_time': 1777120201.7337182, 'get_old_steps_duration_secs': 3.123283386230469e-05, 'checkpoint_manager_blocking_start_time': 1777120181.2145703, 'checkpoint_manager_blocking_duration_secs': 20.52145266532898} I0425 12:30:01.736166 137716323800896 checkpointing.py:409] Started an asynchronous checkpoint save for step 9 I0425 12:30:01.736210 137716323800896 checkpoint_manager.py:2020] [process=3][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0425 12:30:06.938180 137585288537856 array_metadata_store.py:203] [process=3][thread=array_type_handler] Wrote 39 array_metadata.ArrayMetadata to gs://lance-maxtext/linen_ckpt_xpk_feat_nnx_post_train_fixes_20260425_121355/linen_xpk_feat_nnx_post_train_fixes_20260425_121355_07_eval/checkpoints/9/items/array_metadatas/process_3 I0425 12:30:44.162065 137585280145152 base_pytree_checkpoint_handler.py:130] [process=3] /jax/orbax/write/gbytes_per_sec: 37.194 MiB/s (total gbytes: 1.5 GiB) (time elapsed: 42.46860146522522 s) (per-host) I0425 12:30:44.162191 137585280145152 async_checkpointer.py:90] [process=3][thread=async_save] 3 Handler Commit operations completed. Time taken: 42.428520s. I0425 12:30:50.399250 137585280145152 async_checkpointer.py:160] [process=3][thread=async_save] Background save thread done. Time taken: 48.665563s. I0425 12:30:50.399459 137564832913152 async_checkpointer.py:288] [process=3][thread=save_finalize] Done with waiting for background save thread=async_save. I0425 12:30:50.399529 137564832913152 async_checkpointer.py:298] [process=3][thread=save_finalize] No errors found in background save thread=async_save. I0425 12:30:50.399582 137564832913152 checkpoint_manager.py:2137] [process=3][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0425 12:30:50.401216 137564832913152 checkpoint_manager.py:2146] [process=3][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0425 12:30:50.401379 137716323800896 checkpoint_manager.py:2032] [process=3][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9. I0425 12:30:50.401530 137716323800896 checkpoint_manager.py:2009] [process=3][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0425 12:30:50.402453 137716323800896 metric_logger.py:196] completed step: 9, seconds: 0.147, TFLOP/s/device: 92.232, Tokens/s/device: 13902.277, 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: Sat Apr 25 12:31:02 UTC 2026 EXIT_CODE=0