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[ { "role": "user", "content": "In Halo Configuration Reference / Performance & balancing flags, what does `enable_torch_profiler` control and what settings or limitations apply?" }, { "role": "assistant", "content": "Every standard training script inherits these from `CommonScriptArguments`; they...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / Performance & balancing flags", "section_id": "agent-docs/reference/configuration-reference.md:L64", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/hal...
halo-00200e5b4b82df519173
[ { "role": "user", "content": "In Halo Configuration Reference / OfflineGRPOConfig, what does `kl_beta` control and what settings or limitations apply?" }, { "role": "assistant", "content": "`OfflineGRPOTrainer`: group-relative policy optimization on pre-computed rewards. **Source:** `src/configs...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / OfflineGRPOConfig", "section_id": "agent-docs/reference/configuration-reference.md:L346", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e...
halo-003bd015e5ca82117d7f
[ { "role": "user", "content": "In Halo Tensor Parallelism (TP) / Limitations, what does `use_peft` / LoRA (incl. EP+TP) control and what settings or limitations apply?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the conf...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-004fcbd168010a3ba12f
[ { "role": "user", "content": "For Halo Configuration Reference / Script arguments, what should I know about RLVROnlineGRPOScriptArguments?" }, { "role": "assistant", "content": "RLVR Online GRPO. **Source:** `src/args/rlvr_online_grpo_args.py`\n\n| Parameter | Type | Default | Description |\n|--...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / Script arguments / RLVROnlineGRPOScriptArguments", "section_id": "agent-docs/reference/configuration-reference.md:L587", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github...
halo-0053e6def62576c1a0d0
[ { "role": "user", "content": "How do I launch Halo Online SDPG?" }, { "role": "assistant", "content": "```bash\n# vLLM on GPU 7 and the trainer on 0-6, the compose defaults (server setup: Online GRPO)\nCUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6 torchrun --nproc_per_node=7 \\\n scripts/training/online...
commands-and-recipes
[ { "path": "agent-docs/training-methods/distillation/online-sdpg.md", "section": "Online SDPG / Launch", "section_id": "agent-docs/training-methods/distillation/online-sdpg.md:L24", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963...
halo-008a187637667fb1e418
[ { "role": "user", "content": "In Halo Context Parallelism (CP) / Limitations, what does multimodal inputs (`pixel_values`) control and what settings or limitations apply?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the ...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-008c92edde95ef46600a
[ { "role": "user", "content": "For Halo Data Parallelism, what should I know about HSDP (Hybrid Sharded Data Parallel)?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the trainer gates, a...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-0093aad39869d2bdc3af
[ { "role": "user", "content": "For Halo Quickstart, what should I know about Other methods?" }, { "role": "assistant", "content": "Same YAML shape, different script and a few method fields. `halo launch <method> <config>` runs any of them by name and picks the launcher (`halo launch --list`).\n\n...
commands-and-recipes
[ { "path": "agent-docs/getting-started/quickstart.md", "section": "Quickstart / 2. Other methods", "section_id": "agent-docs/getting-started/quickstart.md:L47", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff...
halo-00944db1cdf35a9688f2
[ { "role": "user", "content": "In Halo Parallelism / Supported combinations, what are the details for TP only?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the trainer gates, and the st...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-00a2ef8d617fc2201712
[ { "role": "user", "content": "How is the reference model handled in Halo Direct Preference Optimization (DPO)?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the trainer gates, and the s...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-00acd307f378e5c894b5
[ { "role": "user", "content": "In Halo Flash Attention & Attention Backends / Choosing a backend, what are the details for Context Parallelism?" }, { "role": "assistant", "content": "Every row is what the loader picks on its own; the reason for each redirect is in\nModel-specific handling.\n\n| S...
concepts-and-behavior
[ { "path": "agent-docs/optimization/flash-attention.md", "section": "Flash Attention & Attention Backends / Choosing a backend", "section_id": "agent-docs/optimization/flash-attention.md:L200", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/...
halo-00c26a1da45c445ac6f0
[ { "role": "user", "content": "What does Halo support for Halo / Command A+ cookbook?" }, { "role": "assistant", "content": "| FSDP | EP | CP | TP | ETP | EP+CP | EP+TP | LoRA |\n|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|\n| Yes | Yes | untested | untested | untested | untested | untested ...
commands-and-recipes
[ { "path": "human-docs/cookbooks/halo-command-a-plus-cookbook.md", "section": "Halo / Command A+ cookbook / Halo support", "section_id": "human-docs/cookbooks/halo-command-a-plus-cookbook.md:L14", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/bl...
halo-00e5d7fd93597542737b
[ { "role": "user", "content": "While using Halo, I see this symptom: **`The launcher declares world_size=N but ['MASTER_ADDR', 'MASTER_PORT'] is unset`** at startup. What causes it and how can I fix it?" }, { "role": "assistant", "content": "| Symptom | Cause | Fix | Deep page |\n|---|---|---|---...
troubleshooting
[ { "path": "agent-docs/reference/troubleshooting.md", "section": "Troubleshooting / Symptom → cause → fix", "section_id": "agent-docs/reference/troubleshooting.md:L22", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac31...
halo-00fc5cb8343b9bb0a226
[ { "role": "user", "content": "For Halo Padding-Free Flash Attention Collator, what should I know about Benchmark results?" }, { "role": "assistant", "content": "Throughput is **real (non-padding) tokens/s/GPU** — `attention_mask.sum()`, not padded element count — set via `include_num_input_token...
concepts-and-behavior
[ { "path": "agent-docs/optimization/padding-free-collator.md", "section": "Padding-Free Flash Attention Collator / Benchmark results", "section_id": "agent-docs/optimization/padding-free-collator.md:L61", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle...
halo-011183739ac818d55c26
[ { "role": "user", "content": "In Halo Metrics and Troubleshooting / Logged metrics, what are the details for `outcome/*`?" }, { "role": "assistant", "content": "| Namespace | Answers | Keys to watch |\n|---|---|---|\n| `outcome/*` | task success | `solve_rate`, plus per-env keys such as `test_pa...
troubleshooting
[ { "path": "agent-docs/training-methods/grpo/async-grpo/monitoring.md", "section": "Metrics and Troubleshooting / Logged metrics", "section_id": "agent-docs/training-methods/grpo/async-grpo/monitoring.md:L5", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whiteci...
halo-0122a87ab22895519602
[ { "role": "user", "content": "In Halo Scripts Reference / Post-training scripts, what are the details for `scripts/after_training/merge_models.py`?" }, { "role": "assistant", "content": "| Script | Description |\n|--------|-------------|\n| `scripts/after_training/merge_models.py` | Merge same-a...
concepts-and-behavior
[ { "path": "agent-docs/reference/scripts-reference.md", "section": "Scripts Reference / Post-training scripts", "section_id": "agent-docs/reference/scripts-reference.md:L167", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce752...
halo-01242abf70d42616b6df
[ { "role": "user", "content": "For Halo Pre-training (from scratch & continued), what should I know about Raw-text data preparation?" }, { "role": "assistant", "content": "Raw text is tokenized with document packing and no chat template:\n\n```bash\npython scripts/before_training/prepare_dataset....
concepts-and-behavior
[ { "path": "agent-docs/training-methods/pretraining.md", "section": "Pre-training (from scratch & continued) / Raw-text data preparation", "section_id": "agent-docs/training-methods/pretraining.md:L52", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/h...
halo-0134e2b0f1efae837716
[ { "role": "user", "content": "For Halo Rollout Servers, what should I know about SGLang?" }, { "role": "assistant", "content": "`Dockerfile.sglang` builds `sglang-server:0.5.17` to align NCCL: upstream's wheel trails `uv.lock`'s\nexact pin (what the training images run), and weight sync needs bo...
concepts-and-behavior
[ { "path": "agent-docs/infrastructure/rollout-servers.md", "section": "Rollout Servers / SGLang", "section_id": "agent-docs/infrastructure/rollout-servers.md:L451", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146cc...
halo-0187e17a794e5431d078
[ { "role": "user", "content": "How do I use Halo BF16 Master Weights with Stochastic Rounding?" }, { "role": "assistant", "content": "AdamWBF16 is auto-enabled when `bf16: true` and `optim` is the default AdamW. No separate flag, no special launch flags:\n\n```bash\ntorchrun --nproc_per_node=8 \\...
commands-and-recipes
[ { "path": "agent-docs/optimization/bf16-optimizer.md", "section": "BF16 Master Weights with Stochastic Rounding / Usage", "section_id": "agent-docs/optimization/bf16-optimizer.md:L38", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65...
halo-01e586965e0cb9c15656
[ { "role": "user", "content": "In Halo Architecture / Component map, what are the details for Checkpoints?" }, { "role": "assistant", "content": "| Layer | Owns | Source | Deeper page |\n|---|---|---|---|\n| Checkpoints | The per-mode saver ladder, weight resume, per-rank optimizer shards + LR sc...
internals
[ { "path": "agent-docs/reference/architecture.md", "section": "Architecture / Component map", "section_id": "agent-docs/reference/architecture.md:L16", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/a...
halo-021321b0c87c331bc992
[ { "role": "user", "content": "In Halo Tensor Parallelism (TP) / Limitations, what does native EP expert LoRA control and what settings or limitations apply?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurfac...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-021dbea01ba876c5cc7b
[ { "role": "user", "content": "In Halo Tensor Parallelism (TP) / Limitations, what does `added_special_tokens` that grow the vocab control and what settings or limitations apply?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-023e7b2874240998f658
[ { "role": "user", "content": "For Halo Qwen3 Family, what should I know about Qwen3-VL?" }, { "role": "assistant", "content": "`Qwen3VLTextAttention` reuses `Qwen3MoeUlyssesAttention` for CP and is in the selective-TP accept-list (`src/distributed/tensor_parallel/module_types.py`). That accept-l...
concepts-and-behavior
[ { "path": "agent-docs/models/qwen3.md", "section": "Qwen3 Family / Qwen3-VL", "section_id": "agent-docs/models/qwen3.md:L61", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agent-docs/models/qwen3.md...
halo-023f0e6d0518f7e5f839
[ { "role": "user", "content": "What data format does Halo Online GRPO (RLVR) require?" }, { "role": "assistant", "content": "Two columns: the prompt, and the ground truth the grader checks against.\n\n```jsonl\n{\"prompt\": \"What is 2 + 3? Put your answer in \\\\boxed{}.\", \"answer\": \"5\"}\n{...
concepts-and-behavior
[ { "path": "human-docs/training-methods/online-grpo.md", "section": "Online GRPO (RLVR) / Data", "section_id": "human-docs/training-methods/online-grpo.md:L18", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff...
halo-027083818dddbea02ce5
[ { "role": "user", "content": "How do I train all weights with EP4 for Halo / Qwen3 MoE cookbook?" }, { "role": "assistant", "content": "Create `qwen3-moe-sft.yaml`.\n\n```yaml\nmodel_name_or_path: Qwen/Qwen3-30B-A3B-Instruct-2507\nmodel_revision: 0d7cf23991f47feeb3a57ecb4c9cee8ea4a17bfe\nmodel_i...
commands-and-recipes
[ { "path": "human-docs/cookbooks/halo-qwen3-moe-cookbook.md", "section": "Halo / Qwen3 MoE cookbook / Train all weights with EP4", "section_id": "human-docs/cookbooks/halo-qwen3-moe-cookbook.md:L56", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo...
halo-028c2b5ea1fbb0dc0c65
[ { "role": "user", "content": "In Halo Training Methods / Methods at a glance, what are the details for Reward modeling?" }, { "role": "assistant", "content": "| Method | Trainer | Dataset columns | When to use |\n|---|---|---|---|\n| Reward modeling | `DistributedRewardTrainer` | `chosen`, `reje...
concepts-and-behavior
[ { "path": "agent-docs/training-methods/README.md", "section": "Training Methods / Methods at a glance", "section_id": "agent-docs/training-methods/README.md:L5", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-03173b70e21f40900fc0
[ { "role": "user", "content": "While using Halo, I see this symptom: **Async GRPO with Environments: completions fill with `Error: <tool>: missing a required argument: 'code'`**, episodes loop to `max_turns`, `episode/length_cutoff_turns` stays near zero. What causes it and how can I fix it?" }, { "r...
troubleshooting
[ { "path": "agent-docs/reference/troubleshooting.md", "section": "Troubleshooting / Symptom → cause → fix", "section_id": "agent-docs/reference/troubleshooting.md:L22", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac31...
halo-0317671c8164ee8ea63e
[ { "role": "user", "content": "For Halo Async GRPO with Environments, what should I know about The environments?" }, { "role": "assistant", "content": "`environment_type` picks one; the last column says whether it grades against your dataset's `answer` column.\n\n| `environment_type` | The task |...
concepts-and-behavior
[ { "path": "human-docs/training-methods/async-grpo-environments.md", "section": "Async GRPO with Environments / The environments", "section_id": "human-docs/training-methods/async-grpo-environments.md:L20", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecirc...
halo-03d5451b300529e41654
[ { "role": "user", "content": "In Halo Self-Distillation / Configuration, what does `reference_kl_coef` control and what settings or limitations apply?" }, { "role": "assistant", "content": "The config class is TRL's `SFTConfig`, so `max_length` defaults to `1024` — set it explicitly.\n\n```yaml\...
configuration
[ { "path": "agent-docs/training-methods/distillation/self-distillation.md", "section": "Self-Distillation / Configuration", "section_id": "agent-docs/training-methods/distillation/self-distillation.md:L11", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecirc...
halo-03d93ad747e493a6db7e
[ { "role": "user", "content": "What data format does Halo Offline GRPO require?" }, { "role": "assistant", "content": "Three columns. **A group is one row**: put every completion of a prompt in the same row, because two rows sharing a\nprompt are two groups and are normalized separately.\n\n| Col...
concepts-and-behavior
[ { "path": "human-docs/training-methods/offline-grpo.md", "section": "Offline GRPO / Data", "section_id": "human-docs/training-methods/offline-grpo.md:L16", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227d...
halo-03fb2a1484ccb0dddc1e
[ { "role": "user", "content": "For Halo Tensor Parallelism (TP), what should I know about Multi-node?" }, { "role": "assistant", "content": "TP requires an NVLink-bandwidth all-reduce after every layer, so it must stay **within a domain**;\ncross-node TP over InfiniBand would bottleneck every pas...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/tensor-parallelism.md", "section": "Tensor Parallelism (TP) / Multi-node", "section_id": "agent-docs/parallelism/tensor-parallelism.md:L283", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce75...
halo-04186886fd88e995697a
[ { "role": "user", "content": "In Halo Data Parallelism / Limitations, what does `use_hsdp` on a single NVLink domain control and what settings or limitations apply?" }, { "role": "assistant", "content": "**Trainers.** All of them — plain DP is the fallback every trainer runs on, and no trainer d...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/data-parallelism.md", "section": "Data Parallelism / Limitations", "section_id": "agent-docs/parallelism/data-parallelism.md:L243", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146...
halo-041fe6418f6df2b949df
[ { "role": "user", "content": "While using Halo, I see this symptom: Every GPU at **100% utilization but idle power**, all ranks spinning a CPU core, no NCCL error. What causes it and how can I fix it?" }, { "role": "assistant", "content": "| Symptom | Cause | Fix | Deep page |\n|---|---|---|---|...
troubleshooting
[ { "path": "agent-docs/reference/troubleshooting.md", "section": "Troubleshooting / Symptom → cause → fix", "section_id": "agent-docs/reference/troubleshooting.md:L22", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac31...
halo-042de99942ba6ed81f45
[ { "role": "user", "content": "In Halo Configuration Reference / OfflineGRPOConfig, what does `policy_gradient_formulation` control and what settings or limitations apply?" }, { "role": "assistant", "content": "`OfflineGRPOTrainer`: group-relative policy optimization on pre-computed rewards. **So...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / OfflineGRPOConfig", "section_id": "agent-docs/reference/configuration-reference.md:L346", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e...
halo-047f9a0283a0e7dd06ab
[ { "role": "user", "content": "In Halo SFT Dataset Pre-Processing / Parameters, what does `--private` control and what settings or limitations apply?" }, { "role": "assistant", "content": "| Parameter | Default | Description |\n|-----------|---------|-------------|\n| `--private` | `False` | Make...
configuration
[ { "path": "agent-docs/data/dataset-preparation.md", "section": "SFT Dataset Pre-Processing / Parameters", "section_id": "agent-docs/data/dataset-preparation.md:L117", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac314...
halo-048c5d80925a0c102cd9
[ { "role": "user", "content": "In Halo Expert Parallelism (EP) / Supported models, what are the details for GLM-5 Next?" }, { "role": "assistant", "content": "| Model | HF Class | EP Wrapper | Per-family page |\n|---|---|---|---|\n| GLM-5 Next | `Glm5NextTextMoE` | `EPGlm5NextMoELayer` | glm5-nex...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/expert-parallelism.md", "section": "Expert Parallelism (EP) / Supported models", "section_id": "agent-docs/parallelism/expert-parallelism.md:L19", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963...
halo-0492cbfc20b831921230
[ { "role": "user", "content": "In Halo Configuration Guide / Parallelism parameters, what does `--ep_lazy_loading` control and what settings or limitations apply?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\ns...
configuration
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-049585d830444297fe36
[ { "role": "user", "content": "In Halo Configuration Reference / AsyncTrainingConfig, what does `advantage_quantile` control and what settings or limitations apply?" }, { "role": "assistant", "content": "`DistributedAsyncEnvironmentalGRPOTrainer`: Ray workers, rollout-server connections, weight s...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / AsyncTrainingConfig", "section_id": "agent-docs/reference/configuration-reference.md:L494", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c...
halo-0522b195b3c1dad2de0f
[ { "role": "user", "content": "Can you explain how the trainer finds it for Halo Rollout Servers?" }, { "role": "assistant", "content": "| Config | Method | Meaning |\n| --- | --- | --- |\n| `rollout_server_url` | async GRPO | one server, default `http://localhost:8000` |\n| `rollout_server_confi...
concepts-and-behavior
[ { "path": "human-docs/rollout-servers.md", "section": "Rollout Servers / How the trainer finds it", "section_id": "human-docs/rollout-servers.md:L100", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/...
halo-052d5ac776fd1fe22cdf
[ { "role": "user", "content": "In Halo Docker Guide / Image matrix, what are the details for EFA userspace — AWS libfabric + `aws-ofi-nccl` at one pinned build (`docker/efa/install_efa_userspace.sh`), shared with the vLLM/SGLang images?" }, { "role": "assistant", "content": "| Component | Hopper ...
concepts-and-behavior
[ { "path": "agent-docs/infrastructure/docker.md", "section": "Docker Guide / Image matrix", "section_id": "agent-docs/infrastructure/docker.md:L67", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agen...
halo-0530edec48660b038854
[ { "role": "user", "content": "In Halo AI Tooling / Using it, what are the details for `add-model`?" }, { "role": "assistant", "content": "From a shell inside the container (bring your own subscription or API key):\n\n```bash\ncd /workspace && claude\n```\n\nDescribe the task. Four skills — `para...
concepts-and-behavior
[ { "path": "human-docs/ai-tooling.md", "section": "AI Tooling / Using it", "section_id": "human-docs/ai-tooling.md:L9", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/human-docs/ai-tooling.md#L10-L33"...
halo-0541e019fcad9d262fd5
[ { "role": "user", "content": "In Halo Expert Parallelism (EP) / Supported models, what are the details for Mistral4?" }, { "role": "assistant", "content": "| Model | HF Class | EP Wrapper | Per-family page |\n|---|---|---|---|\n| Mistral4 | `Mistral4MoE` | `EPMistral4MoELayer` | mistral4.md |\n\...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/expert-parallelism.md", "section": "Expert Parallelism (EP) / Supported models", "section_id": "agent-docs/parallelism/expert-parallelism.md:L19", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963...
halo-0567822b713354b29699
[ { "role": "user", "content": "For Halo GPT-OSS, what should I know about Serving for GRPO (vLLM)?" }, { "role": "assistant", "content": "Use the toolkit `vllm-server:0.26.0` image, not stock upstream vLLM: on B300 the stock `vllm/vllm-openai` image produces garbage GPT-OSS output with harmony on...
concepts-and-behavior
[ { "path": "agent-docs/models/gpt-oss.md", "section": "GPT-OSS / Serving for GRPO (vLLM)", "section_id": "agent-docs/models/gpt-oss.md:L100", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agent-docs/...
halo-057b9cbdc1696ab8cf79
[ { "role": "user", "content": "Can you explain why bf16 wins for Halo Mixed-Precision Training: FP8 / FP4 (Low-Precision Compute)?" }, { "role": "assistant", "content": "At production MoE shapes — EP degree 8, 256–512 tokens per local expert, expert width N ≤ 4096 (gpt-oss-120B N=2880, qwen3.6 do...
internals
[ { "path": "agent-docs/optimization/low-precision-moe-kernels.md", "section": "Mixed-Precision Training: FP8 / FP4 (Low-Precision Compute) / Why bf16 wins", "section_id": "agent-docs/optimization/low-precision-moe-kernels.md:L23", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "http...
halo-05db8e02218d715c33b8
[ { "role": "user", "content": "For Halo Reward Terms, what should I know about Generative judge?" }, { "role": "assistant", "content": "An OpenAI-compatible chat model reads the task, the response and the rubric, and replies with one JSON object of integer scores, one per requirement, from 0 to `...
concepts-and-behavior
[ { "path": "agent-docs/training-methods/grpo/rewards.md", "section": "Reward Terms / Generative judge", "section_id": "agent-docs/training-methods/grpo/rewards.md:L30", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac31...
halo-0657ef6a7446bb4d1e60
[ { "role": "user", "content": "In Halo Rollout Servers / vLLM / Config-schema parity, what does `VLLM_CUDA_DEVICES` control and what settings or limitations apply?" }, { "role": "assistant", "content": "`Dockerfile.vllm` builds `vllm-server:0.26.0` with the native NCCL weight-transfer engine, the...
configuration
[ { "path": "agent-docs/infrastructure/rollout-servers.md", "section": "Rollout Servers / vLLM", "section_id": "agent-docs/infrastructure/rollout-servers.md:L292", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-06619ae03baf85efe66d
[ { "role": "user", "content": "In Halo Why this framework / Framework comparison, what are the details for Multi-node?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the trainer gates, an...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-066b83894885c7ca4d9c
[ { "role": "user", "content": "What should I know about Halo Rollout Servers? Focus on practical usage." }, { "role": "assistant", "content": "On-policy RL needs the model to generate while it trains. Halo does that in a **separate inference container** —\nvLLM or SGLang — that the trainer talks ...
concepts-and-behavior
[ { "path": "human-docs/rollout-servers.md", "section": "Rollout Servers", "section_id": "human-docs/rollout-servers.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/human-docs/rollout-servers.md...
halo-067f155797693107a7dd
[ { "role": "user", "content": "How do I train Laguna XS 2.1 on one GPU for Halo / Poolside Laguna 2.1 cookbook?" }, { "role": "assistant", "content": "Copy the config to `laguna-xs-2.1-sft.yaml`, change the model and output directory, and\ndrop `expert_parallel_size`.\n\n```yaml\nmodel_name_or_pa...
commands-and-recipes
[ { "path": "human-docs/cookbooks/halo-laguna-2.1-cookbook.md", "section": "Halo / Poolside Laguna 2.1 cookbook / Train Laguna XS 2.1 on one GPU", "section_id": "human-docs/cookbooks/halo-laguna-2.1-cookbook.md:L140", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com...
halo-06a8b9294d00d3cafa3b
[ { "role": "user", "content": "While using Halo, I see this symptom: **`EP capacity dedup: a MoE layer dispatched N tokens/rank, over the capacity C cached at forward generation G`** on one rank, its peers stuck in the dispatch. What causes it and how can I fix it?" }, { "role": "assistant", "con...
troubleshooting
[ { "path": "agent-docs/reference/troubleshooting.md", "section": "Troubleshooting / Symptom → cause → fix", "section_id": "agent-docs/reference/troubleshooting.md:L22", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac31...
halo-06ab3137b5051e4576dc
[ { "role": "user", "content": "While using Halo, I see this symptom: Nodes never join, or the rendezvous times out. What causes it and how can I fix it?" }, { "role": "assistant", "content": "| Symptom | Cause → fix |\n| --- | --- |\n| Nodes never join, or the rendezvous times out | The torchrun ...
troubleshooting
[ { "path": "human-docs/troubleshooting.md", "section": "Troubleshooting / Multi-node and clusters", "section_id": "human-docs/troubleshooting.md:L33", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/hu...
halo-06e5bbdf40cf4b726b18
[ { "role": "user", "content": "For Halo Architecture, what should I know about Trainers?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the trainer gates, and the stage/split/loss/checkpo...
internals
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-06f0247c973d3449ab5e
[ { "role": "user", "content": "Can you explain what every method shares for Halo Training Methods?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the trainer gates, and the stage/split/lo...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-06f96f6598c16feff957
[ { "role": "user", "content": "In Halo Offline GRPO / Configuration, what does `best_completion_emphasis` control and what settings or limitations apply?" }, { "role": "assistant", "content": "```yaml\nmodel_name_or_path: Qwen/Qwen3.6-35B-A3B\ndataset:\n - s3://bucket/gsm8k-qwen3.6-35b-a3b-offli...
configuration
[ { "path": "agent-docs/training-methods/grpo/offline-grpo.md", "section": "Offline GRPO / Configuration", "section_id": "agent-docs/training-methods/grpo/offline-grpo.md:L31", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce752...
halo-06fe38b8fad27dc4e5d0
[ { "role": "user", "content": "In Halo Metrics and Troubleshooting / Logged metrics, what are the details for unnamespaced?" }, { "role": "assistant", "content": "| Namespace | Answers | Keys to watch |\n|---|---|---|\n| unnamespaced | TRL loss internals | `clip_ratio/*`, `cispo_clip_ratio`, `ste...
troubleshooting
[ { "path": "agent-docs/training-methods/grpo/async-grpo/monitoring.md", "section": "Metrics and Troubleshooting / Logged metrics", "section_id": "agent-docs/training-methods/grpo/async-grpo/monitoring.md:L5", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whiteci...
halo-071805833fc172e0c4c8
[ { "role": "user", "content": "For Halo Parallelism, what should I know about torch.compile?" }, { "role": "assistant", "content": "On EP MoE, `torch_compile` reaches about the same speedup as Liger kernels (the default) and composes with them. DeepEP all-to-all (EP), DTensor dispatch (TP), and U...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/README.md", "section": "Parallelism / torch.compile", "section_id": "agent-docs/parallelism/README.md:L131", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agent-doc...
halo-07371635d4b26326cfee
[ { "role": "user", "content": "In Halo Why this framework / Framework comparison / When to use which, what are the details for EP+TP or pure ETP on MoE?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, th...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-0760d670459ae2d0562f
[ { "role": "user", "content": "What should I know about Halo Infrastructure?" }, { "role": "assistant", "content": "Runtime image, cloud deployments, and hardware-specific dependency installation." } ]
concepts-and-behavior
[ { "path": "agent-docs/infrastructure/README.md", "section": "Infrastructure", "section_id": "agent-docs/infrastructure/README.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agent-docs/infrast...
halo-07878b5f6bcbb06c3c9b
[ { "role": "user", "content": "Which seemingly useful optimizations can fail to help Halo MoE training, and why?" }, { "role": "assistant", "content": "| Lever | Why not |\n| --- | --- |\n| fp8 / fp4 **compute** (`lowp_precision`) | fine-grained experts are weight-bandwidth-bound, not FLOP-bound,...
concepts-and-behavior
[ { "path": "human-docs/performance.md", "section": "Performance / Levers that do not help here", "section_id": "human-docs/performance.md:L48", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/human-doc...
halo-079def186378f218408f
[ { "role": "user", "content": "For Halo Step-3.7 Flash, what should I know about Serving for GRPO (vLLM)?" }, { "role": "assistant", "content": "Online and async GRPO sync into vLLM 0.26.0, which serves the family from the **hub** namespace (`model.layers.N.moe.gate_proj` / `up_proj` / `down_proj...
concepts-and-behavior
[ { "path": "agent-docs/models/step3p7.md", "section": "Step-3.7 Flash / Serving for GRPO (vLLM)", "section_id": "agent-docs/models/step3p7.md:L74", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agent...
halo-07a76f0af47aa28e0362
[ { "role": "user", "content": "In Halo Nomad Deployment / Mapping onto `docker run`, what are the details for `--ipc=host`?" }, { "role": "assistant", "content": "The specs carry the same container flags every other Halo surface passes (`CLAUDE.md`, the Makefile, the SkyPilot tasks):\n\n| `docker...
commands-and-recipes
[ { "path": "agent-docs/infrastructure/nomad.md", "section": "Nomad Deployment / Mapping onto `docker run`", "section_id": "agent-docs/infrastructure/nomad.md:L168", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146cc...
halo-07e51511168217bd0e6d
[ { "role": "user", "content": "For Halo Tensor Parallelism (TP) / The selective-TP plan, what should I know about Identical-input requirement?" }, { "role": "assistant", "content": "`apply_tp_to_attention_only` (`src/distributed/tensor_parallel/parallelize_attention.py`) walks the\nmodel and buil...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/tensor-parallelism.md", "section": "Tensor Parallelism (TP) / The selective-TP plan", "section_id": "agent-docs/parallelism/tensor-parallelism.md:L113", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c...
halo-07f992f5d0c7312d73ca
[ { "role": "user", "content": "In Halo Rollout Servers / SGLang, what does `SGLANG_PORT` control and what settings or limitations apply?" }, { "role": "assistant", "content": "`Dockerfile.sglang` builds `sglang-server:0.5.17` to align NCCL: upstream's wheel trails `uv.lock`'s\nexact pin (what the...
concepts-and-behavior
[ { "path": "agent-docs/infrastructure/rollout-servers.md", "section": "Rollout Servers / SGLang", "section_id": "agent-docs/infrastructure/rollout-servers.md:L451", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146cc...
halo-082f0679eefe47d7a2db
[ { "role": "user", "content": "In Halo Environment Variables / Tuning knobs worth knowing, what does `HALO_DEEPEP_GPU_TIMEOUT_SECONDS` control and what settings or limitations apply?" }, { "role": "assistant", "content": "Halo has around twenty more `HALO_*` knobs, all optional and all defaulted ...
configuration
[ { "path": "human-docs/environment-variables.md", "section": "Environment Variables / Tuning knobs worth knowing", "section_id": "human-docs/environment-variables.md:L73", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bca...
halo-083ae9c18ce59a919598
[ { "role": "user", "content": "What should I know about Halo / Command A+ cookbook?" }, { "role": "assistant", "content": "Fine-tune Cohere Command A+ with Halo.\n\nThis recipe uses the BF16 checkpoint and text-only UltraChat data. The same model can also train on image-text data.\n\nCommand A+ h...
commands-and-recipes
[ { "path": "human-docs/cookbooks/halo-command-a-plus-cookbook.md", "section": "Halo / Command A+ cookbook", "section_id": "human-docs/cookbooks/halo-command-a-plus-cookbook.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963d...
halo-0880b3d316e78f36d19e
[ { "role": "user", "content": "In Halo Configuration Reference / Sequence length: caps vs generation budgets / Per-trainer mechanism, what are the details for SMPO (`SmoothMarginPOConfig`)?" }, { "role": "assistant", "content": "Three knob names carry the length settings. They mean the same thing...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / Sequence length: caps vs generation budgets", "section_id": "agent-docs/reference/configuration-reference.md:L14", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/w...
halo-08acd685056fd6cfd58f
[ { "role": "user", "content": "In Halo Docker Guide / Baked-in environment variables, what does `CUTE_DSL_ENABLE_TVM_FFI` control and what settings or limitations apply?" }, { "role": "assistant", "content": "| Variable | Value | Effect |\n|----------|-------|--------|\n| `CUTE_DSL_ENABLE_TVM_FFI...
configuration
[ { "path": "agent-docs/infrastructure/docker.md", "section": "Docker Guide / Baked-in environment variables", "section_id": "agent-docs/infrastructure/docker.md:L160", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac314...
halo-08ad4b6c828f95dde838
[ { "role": "user", "content": "While using Halo, I see this symptom: `gradient_checkpointing_enable` raises on Zaya. What causes it and how can I fix it?" }, { "role": "assistant", "content": "| Symptom | Cause | Fix | Deep page |\n|---|---|---|---|\n| `gradient_checkpointing_enable` raises on Za...
troubleshooting
[ { "path": "agent-docs/reference/troubleshooting.md", "section": "Troubleshooting / Symptom → cause → fix", "section_id": "agent-docs/reference/troubleshooting.md:L22", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac31...
halo-08b1a78e7a4dc9cd1d10
[ { "role": "user", "content": "In Halo Configuration Reference / SmoothMarginPOConfig, what does `model_init_kwargs` control and what settings or limitations apply?" }, { "role": "assistant", "content": "`SmoothMarginPOTrainer` (SMPO) — reference-model-free, margin-based preference optimization. ...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / SmoothMarginPOConfig", "section_id": "agent-docs/reference/configuration-reference.md:L371", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4...
halo-08b54f29c01c9cb164eb
[ { "role": "user", "content": "For Halo Preference Tuning, what should I know about Length budgets?" }, { "role": "assistant", "content": "SMPO splits `max_length` into a prompt share and a completion share: `max_prompt_length` defaults to\nhalf of it and the completion takes the remainder, promp...
concepts-and-behavior
[ { "path": "human-docs/training-methods/preference.md", "section": "Preference Tuning / Length budgets", "section_id": "human-docs/training-methods/preference.md:L110", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac31...
halo-08b7b97a1b90b2decaa7
[ { "role": "user", "content": "For Halo GPT-OSS, what should I know about Attention sinks?" }, { "role": "assistant", "content": "GptOss attention adds a per-head learnable scalar to the attention logits before softmax, with two parallelism consequences.\n\n**TP sharding.** `shard_sinks_param()` ...
concepts-and-behavior
[ { "path": "agent-docs/models/gpt-oss.md", "section": "GPT-OSS / Attention sinks", "section_id": "agent-docs/models/gpt-oss.md:L35", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agent-docs/models/gp...
halo-08c5974abdefb321297d
[ { "role": "user", "content": "What dataset structure does Halo Classification require?" }, { "role": "assistant", "content": "A `prompt` conversation plus a `label` column: a string for single-label, a list for multi-label. `text_field` names a raw text column instead, wrapped as one user turn. ...
concepts-and-behavior
[ { "path": "agent-docs/training-methods/classification.md", "section": "Classification / Dataset", "section_id": "agent-docs/training-methods/classification.md:L7", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146cc...
halo-08d3021715c5252fe82f
[ { "role": "user", "content": "How do I train all weights with EP8 for Fine-tune Gemma 4 MoE with Halo?" }, { "role": "assistant", "content": "Create `gemma4-sft.yaml`, or start from the shipped\n`examples/sft/gemma4/gemma4-26b-a4b-ultrachat-ep.yaml`.\n\n```yaml\nmodel_name_or_path: google/gemma-...
commands-and-recipes
[ { "path": "human-docs/cookbooks/halo-gemma4-moe-cookbook.md", "section": "Fine-tune Gemma 4 MoE with Halo / Train all weights with EP8", "section_id": "human-docs/cookbooks/halo-gemma4-moe-cookbook.md:L58", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecir...
halo-08de8ad1141de87c175f
[ { "role": "user", "content": "For Halo Clusters and Multi-Node, what should I know about SkyPilot?" }, { "role": "assistant", "content": "`launcher-configs/skypilot/` holds launchable task YAMLs for AWS and Nebius:\nGPT-OSS 20B (node-local EP), plus GPT-OSS 120B and Qwen3.5-122B in node-local\na...
concepts-and-behavior
[ { "path": "human-docs/clusters.md", "section": "Clusters and Multi-Node / SkyPilot", "section_id": "human-docs/clusters.md:L112", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/human-docs/clusters.md...
halo-08e0a02ad440c61274ed
[ { "role": "user", "content": "For Halo Collators, what should I know about Document isolation under packing?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the trainer gates, and the sta...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-0905d644a0d7db39ab69
[ { "role": "user", "content": "In Halo Offline GRPO / Configuration, what does `loss_type` control and what settings or limitations apply?" }, { "role": "assistant", "content": "```yaml\nmodel_name_or_path: Qwen/Qwen3.6-35B-A3B\ndataset:\n - s3://bucket/gsm8k-qwen3.6-35b-a3b-offline-grpo\nadvant...
configuration
[ { "path": "agent-docs/training-methods/grpo/offline-grpo.md", "section": "Offline GRPO / Configuration", "section_id": "agent-docs/training-methods/grpo/offline-grpo.md:L31", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce752...
halo-09291e4b0cb172a6a8f1
[ { "role": "user", "content": "In Halo Glossary / Parallelism, what are the details for **Expert Tensor Parallel (ETP)**?" }, { "role": "assistant", "content": "| Term | Definition |\n|---|---|\n| **Expert Tensor Parallel (ETP)** | Shards each expert's FFN weights across `expert_tp_size` GPUs — i...
concepts-and-behavior
[ { "path": "agent-docs/reference/glossary.md", "section": "Glossary / Parallelism", "section_id": "agent-docs/reference/glossary.md:L9", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agent-docs/refer...
halo-09431ce4120ca0171f71
[ { "role": "user", "content": "For Halo vs stock TRL / transformers, what should I know about Throughput & memory (4k–16k)?" }, { "role": "assistant", "content": "*GC-on · grouped GEMM · TRL ZeRO-3 · Halo ZeRO-2 (EP1 also at ZeRO-3) · elastic.* **tok/s/GPU · peak GB:**\n\n| seq·b | stock TRL (z3)...
concepts-and-behavior
[ { "path": "agent-docs/optimization/halo-vs-stock-trl.md", "section": "Halo vs stock TRL / transformers / Throughput & memory (4k–16k)", "section_id": "agent-docs/optimization/halo-vs-stock-trl.md:L26", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/h...
halo-094ade7ee14d88c63f43
[ { "role": "user", "content": "In Halo Troubleshooting / Parallelism config rejections, what are the details for `EP + TP + ETP`?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the traine...
troubleshooting
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-0959324d70009adb770c
[ { "role": "user", "content": "In Halo Supported Matrix / Training methods, what are the details for Embedding?" }, { "role": "assistant", "content": "Every trainer supports EP, TP, ETP and EP+TP. CP is declare-to-enable and only\nSFT and SMPO set it: nothing inspects a trainer's loss, so CP woul...
concepts-and-behavior
[ { "path": "human-docs/supported-matrix.md", "section": "Supported Matrix / Training methods", "section_id": "human-docs/supported-matrix.md:L40", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/human-...
halo-09597d64d20e17cccfa7
[ { "role": "user", "content": "In Halo Collators / Document isolation under packing, what are the details for Qwen3.5 / 3.6, Qwen3-Next?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-095e22ad3d6b44652986
[ { "role": "user", "content": "In Halo Rollout Servers / vLLM / Config-schema parity, what does `VLLM_MOE_BACKEND` control and what settings or limitations apply?" }, { "role": "assistant", "content": "`Dockerfile.vllm` builds `vllm-server:0.26.0` with the native NCCL weight-transfer engine, the\...
configuration
[ { "path": "agent-docs/infrastructure/rollout-servers.md", "section": "Rollout Servers / vLLM", "section_id": "agent-docs/infrastructure/rollout-servers.md:L292", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-096548d5fa8c33c1d904
[ { "role": "user", "content": "Can you explain why CP and TP are unavailable for Halo Laguna?" }, { "role": "assistant", "content": "Both are registry-gated, and Laguna is in neither registry:\n\n- **CP** needs a Ulysses attention wrapper. `LagunaAttention` is absent from `CP_SUPPORTED_ATTENTION_...
concepts-and-behavior
[ { "path": "agent-docs/models/laguna.md", "section": "Laguna / Why CP and TP are unavailable", "section_id": "agent-docs/models/laguna.md:L54", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agent-doc...
halo-097a11bac7895680f02e
[ { "role": "user", "content": "What should I know about Halo GPU Training Theory?" }, { "role": "assistant", "content": "Every \"should I use X?\" reduces to one question: which bottleneck does X attack, and is that the one you have? The **roofline** (§2) answers it; §3 names the four bottlenecks...
concepts-and-behavior
[ { "path": "agent-docs/reference/gpu-training-theory.md", "section": "GPU Training Theory", "section_id": "agent-docs/reference/gpu-training-theory.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc...
halo-09a98d769de72b7a8029
[ { "role": "user", "content": "How do I launch Halo Teacher Distillation?" }, { "role": "assistant", "content": "```bash\ntorchrun --nproc_per_node=8 scripts/training/distillation/teacher_distill.py \\\n examples/distillation/qwen3_5/distill-qwen3.5-9b-from-qwen3.6-35b-a3b.yaml\n```\n\n`halo l...
commands-and-recipes
[ { "path": "agent-docs/training-methods/distillation/teacher-distillation.md", "section": "Teacher Distillation / Launch", "section_id": "agent-docs/training-methods/distillation/teacher-distillation.md:L64", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whiteci...
halo-09b516250c948a473406
[ { "role": "user", "content": "In Halo Supported Models / Choosing a parallelism configuration, what are the details for Same MoEs, long context?" }, { "role": "assistant", "content": "| You have | Sequence length | Recommended mode |\n|---|---|---|\n| Same MoEs, long context | > 32K | EP+CP |\n\...
configuration
[ { "path": "agent-docs/models/README.md", "section": "Supported Models / Choosing a parallelism configuration", "section_id": "agent-docs/models/README.md:L117", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaff...
halo-0a1a5ea60dd8b5c612a5
[ { "role": "user", "content": "In Halo Scripts Reference / Preparation scripts, what are the details for `scripts/before_training/convert_mistral4_bf16.py`?" }, { "role": "assistant", "content": "| Script | Description |\n|--------|-------------|\n| `scripts/before_training/convert_mistral4_bf16....
concepts-and-behavior
[ { "path": "agent-docs/reference/scripts-reference.md", "section": "Scripts Reference / Preparation scripts", "section_id": "agent-docs/reference/scripts-reference.md:L289", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520b...
halo-0a24b96952b164e855bc
[ { "role": "user", "content": "For Halo Mistral4 (text backbone of Mistral3 VLMs), what should I know about Serving?" }, { "role": "assistant", "content": "vLLM 0.26.0 knows nothing of this family: `mistral4` appears in neither its architecture registry nor any `model_type` mapping. The composite...
concepts-and-behavior
[ { "path": "agent-docs/models/mistral4.md", "section": "Mistral4 (text backbone of Mistral3 VLMs) / Serving", "section_id": "agent-docs/models/mistral4.md:L99", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff...
halo-0a4ecabb2980fb3b5eca
[ { "role": "user", "content": "In Halo Configuration Reference / ClassificationConfig, what does `disable_dropout` control and what settings or limitations apply?" }, { "role": "assistant", "content": "`ClassificationTrainer`. **Source:** `src/configs/classification_config.py`\n\n| Parameter | Ty...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / ClassificationConfig", "section_id": "agent-docs/reference/configuration-reference.md:L432", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4...
halo-0a545e8e5d258c39062d
[ { "role": "user", "content": "In Halo Model Merging / Usage, what does `--models` control and what settings or limitations apply?" }, { "role": "assistant", "content": "```bash\n# Weighted linear average (weights are normalized by their sum)\npython scripts/after_training/merge_models.py --metho...
commands-and-recipes
[ { "path": "agent-docs/reference/model-merging.md", "section": "Model Merging / Usage", "section_id": "agent-docs/reference/model-merging.md:L16", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/agent-...
halo-0a548355cf3cd81d4319
[ { "role": "user", "content": "What should I know about Halo Mistral4 (text backbone of Mistral3 VLMs)?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the trainer gates, and the stage/spl...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-0a63d628d7208dff6a32
[ { "role": "user", "content": "In Halo Configuration Reference / ParallelismConfig, what does `lowp_apply_moe_experts` control and what settings or limitations apply?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the confi...
configuration
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-0a770fcc0a308bfa16d5
[ { "role": "user", "content": "In Halo Glossary / Methods and infrastructure, what are the details for **R3 (routing replay)**?" }, { "role": "assistant", "content": "| Term | Definition |\n|---|---|\n| **R3 (routing replay)** | MoE rollout↔training routing alignment: the rollout engine records w...
concepts-and-behavior
[ { "path": "agent-docs/reference/glossary.md", "section": "Glossary / Methods and infrastructure", "section_id": "agent-docs/reference/glossary.md:L60", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/...
halo-0aa9ea0438fb44b4a97e
[ { "role": "user", "content": "In Halo Configuration Reference / Script arguments / CommonScriptArguments, what does `pad_token` / `bos_token` / `eos_token` control and what settings or limitations apply?" }, { "role": "assistant", "content": "Base shared by all training scripts. **Source:** `src...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / Script arguments / CommonScriptArguments", "section_id": "agent-docs/reference/configuration-reference.md:L548", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whi...
halo-0ac591e037b1849ac5f2
[ { "role": "user", "content": "In Halo Supported Matrix / Model families, what are the details for Any other HF causal LM?" }, { "role": "assistant", "content": "Any HuggingFace `AutoModelForCausalLM` runs under FSDP2; this table is about\nadvanced parallelism. Qwen3 MoE, GPT-OSS, GLM-4 MoE Lite ...
concepts-and-behavior
[ { "path": "human-docs/supported-matrix.md", "section": "Supported Matrix / Model families", "section_id": "human-docs/supported-matrix.md:L99", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff227dc9f/human-do...
halo-0ad6da0048417e34da2e
[ { "role": "user", "content": "What should I know about Halo Embedding Training?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the trainer gates, and the stage/split/loss/checkpoint cont...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-0afb2d2ed369a5fd6fb5
[ { "role": "user", "content": "For Halo Configuration Reference, what should I know about EnvironmentConfig?" }, { "role": "assistant", "content": "Environment selection, reward terms and turn budget for Async GRPO with Environments. **Source:** `src/configs/environment_config.py`\n\n| Parameter ...
configuration
[ { "path": "agent-docs/reference/configuration-reference.md", "section": "Configuration Reference / EnvironmentConfig", "section_id": "agent-docs/reference/configuration-reference.md:L455", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e...
halo-0b1e0b4036fe62cdfe5f
[ { "role": "user", "content": "In Halo Rollout Servers / SGLang, what does `SGLANG_ATTENTION_BACKEND` control and what settings or limitations apply?" }, { "role": "assistant", "content": "`Dockerfile.sglang` builds `sglang-server:0.5.17` to align NCCL: upstream's wheel trails `uv.lock`'s\nexact ...
concepts-and-behavior
[ { "path": "agent-docs/infrastructure/rollout-servers.md", "section": "Rollout Servers / SGLang", "section_id": "agent-docs/infrastructure/rollout-servers.md:L451", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146cc...
halo-0b29dd52ab6e6f5f42cf
[ { "role": "user", "content": "In Halo Why this framework / Framework comparison, what are the details for Offline GRPO (pre-scored)?" }, { "role": "assistant", "content": "**Status: not yet available in this release.** The pipeline-parallel seams ship — the config\nsurface, the rank math, the tr...
concepts-and-behavior
[ { "path": "agent-docs/parallelism/pipeline-parallelism.md", "section": "Pipeline Parallelism", "section_id": "agent-docs/parallelism/pipeline-parallelism.md:L1", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccaf...
halo-0b2a5090165dcc499bbc
[ { "role": "user", "content": "In Halo Quickstart / 2. Other methods, what are the details for DPO / KTO?" }, { "role": "assistant", "content": "Same YAML shape, different script and a few method fields. `halo launch <method> <config>` runs any of them by name and picks the launcher (`halo launch...
commands-and-recipes
[ { "path": "agent-docs/getting-started/quickstart.md", "section": "Quickstart / 2. Other methods", "section_id": "agent-docs/getting-started/quickstart.md:L47", "commit": "4c1e6c65b963dce7520bcac3146ccafff227dc9f", "url": "https://github.com/whitecircle/halo/blob/4c1e6c65b963dce7520bcac3146ccafff...
halo-0b57e8ef2522f18103a2