config: the resolution pipeline's dispatcher leaves the record (#36896)
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
co-authored by
Claude Opus 5
parent
46ccd7ce3e
commit
48b88e1256
@@ -0,0 +1,361 @@
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# SPDX-License-Identifier: Apache-2.0
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"""The resolution pipeline: the ordered dispatcher every publishing entry runs.
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``ServerArgs.resolve_once`` is the only caller. It lives here rather than on the
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record because a step decides *about* the record; none of them is a member of
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it.
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"""
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from __future__ import annotations
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import dataclasses
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from typing import Any
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from sglang.srt.arg_groups.overrides import (
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_page_size_default,
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_pipeline_parallel_overlap_disable,
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_sampling_backend_default,
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declare_direct_writes,
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resolving_view,
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run_post_process_pass,
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)
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from sglang.srt.platforms import current_platform
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from sglang.srt.utils.common import get_device_memory_capacity
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def run_resolution_pipeline(server_args: Any) -> None:
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"""
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Orchestrates the handling of various server arguments, ensuring proper configuration and validation.
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Dispatcher style principles:
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1. Keep this function as an ordered dispatcher. Each step should be a
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named call into an ``arg_groups`` family; put imports, conditionals,
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mutations, and raises inside the family instead of inline here.
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2. Keep the dummy-model boundary as early as correctness allows. Only
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model-independent bootstrap, API/network/protocol validation, and
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errors that should fire for dummy models should run before it.
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3. Order handlers by dependency domains, not by historical insertion:
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internal/bootstrap, API/network/protocol, model source/path
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resolution, hardware/platform, model-specific adjustment,
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parallelism, kernel/attention backend, cuda graph, memory/cache,
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and advanced/debug features.
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4. Hide narrow integrations behind general handler names. The
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dispatcher should say what phase is being handled, not expose a
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vendor-, hook-, or feature-specific implementation detail.
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5. Give each handler one clear contract: what state it expects, what it
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may mutate, and whether it validates only. Long ordering comments
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belong in the helper or signal that the helper should be split.
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"""
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# What the caller asked for, before any handler runs; this plus the
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# stash is the resolution result the projection reads.
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server_args._raw_input = {
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field.name: getattr(server_args, field.name)
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for field in dataclasses.fields(server_args)
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}
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# Declaration stash for the override/post-process passes. Set before any
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# short-circuit (none/dummy model paths) so run_post_process_pass and
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# direct handler invocations can rely on it even when
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# _handle_model_specific_adjustments never runs.
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server_args._resolved_overrides = []
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cfg = resolving_view(server_args)
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from sglang.srt.arg_groups.mega_moe_hook import handle_mega_moe
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handle_mega_moe(server_args)
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from sglang.srt.arg_groups.serving_hook import (
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handle_asr_validation,
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handle_crash_dump_env,
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handle_debug_utils,
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handle_deprecated_args,
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handle_environment_variables,
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handle_grammar_backend,
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handle_load_balance_method,
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handle_media_url_security,
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handle_missing_default_values,
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handle_multimodal,
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handle_other_validations,
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handle_prefill_delayer_env_compat,
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handle_return_hidden_states_mode,
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handle_ssl_validation,
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handle_tokenizer_batching,
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)
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handle_return_hidden_states_mode(server_args)
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handle_media_url_security(server_args)
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from sglang.srt.arg_groups.hicache_hook import (
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handle_hicache,
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handle_hicache_ratio_default,
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)
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handle_hicache_ratio_default(server_args)
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from sglang.srt.arg_groups.validation_hook import (
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validate_experimental_sgl_marlin,
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validate_prefill_decode_interval,
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)
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validate_prefill_decode_interval(server_args)
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# Reject an explicitly enabled but incompatible hardware runtime before
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# model path resolution, downloads, or the dummy-model short circuit.
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from sglang.srt.arg_groups.platform_hook import (
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handle_hardware_runtime_validation,
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)
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handle_hardware_runtime_validation(server_args)
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if cfg.model_path.lower() in ["none", "dummy"]:
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return
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from sglang.srt.arg_groups.model_path_hook import (
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handle_load_format,
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handle_model_source_paths,
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)
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handle_model_source_paths(server_args)
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# Validate mm_process_config.
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handle_multimodal(server_args)
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# Validate SSL arguments early.
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handle_ssl_validation(server_args)
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# Validate transcription/ASR-specific server args.
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handle_asr_validation(server_args)
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# Handle deprecated arguments.
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handle_deprecated_args(server_args)
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# Handle deprecated environment variables for prefill delayer.
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handle_prefill_delayer_env_compat(server_args)
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# Set missing default values.
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handle_missing_default_values(server_args)
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# expert_pack may replace a raw GGUF input with its generated local
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# model metadata before any model-specific handler calls model_config_of.
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# It also establishes eager-only invariants before CUDA graph parsing.
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from sglang.srt.arg_groups.expert_pack_hook import handle_expert_pack
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handle_expert_pack(server_args)
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# Validate PD disaggregation flags before CUDA graph config.
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from sglang.srt.arg_groups.pd_disaggregation_hook import (
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handle_encoder_disaggregation,
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handle_pd_disaggregation,
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)
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handle_pd_disaggregation(server_args)
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# Normalize deprecated CP aliases before validations or model-specific
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# defaults inspect enable_prefill_cp/cp_strategy.
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from sglang.srt.arg_groups.parallel_hook import (
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handle_context_parallelism,
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handle_data_parallelism,
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handle_dcp_validation,
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handle_dwdp,
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handle_elastic_ep,
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handle_eplb_and_dispatch,
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handle_expert_distribution_metrics,
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handle_legacy_cp_arguments,
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)
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handle_legacy_cp_arguments(server_args)
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from sglang.srt.arg_groups.kv_cache_hook import (
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handle_cache_compatibility,
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handle_kv4_compatibility,
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handle_mxfp8_kv_cache_compatibility,
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handle_page_major_kv_layout,
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handle_prefill_only_disable_kv_cache,
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handle_unified_memory_pool,
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validate_prefill_only_disable_kv_cache_args,
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)
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validate_prefill_only_disable_kv_cache_args(server_args)
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handle_dcp_validation(server_args)
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# Model-arch prefill CUDA-graph default must land before cuda-graph
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# resolution (the declarative registry materializes too late to affect
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# it). Inkling opts into full-graph prefill capture here.
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from sglang.srt.arg_groups.cuda_graph_hook import (
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apply_inkling_prefill_cuda_graph_default,
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apply_muse_glimmer_prefill_cuda_graph_max_bs_default,
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disable_prefill_cuda_graph_for_deepseek_trtllm_mla,
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handle_cuda_graph_config,
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)
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apply_inkling_prefill_cuda_graph_default(server_args)
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apply_muse_glimmer_prefill_cuda_graph_max_bs_default(server_args)
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# must run before _handle_cuda_graph_config and _handle_data_parallelism
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handle_dwdp(server_args)
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handle_cuda_graph_config(server_args)
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# Handle device-specific backends.
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from sglang.srt.arg_groups.platform_hook import (
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handle_amd_specifics,
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handle_cpu_backends,
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handle_hpu_backends,
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handle_mps_backends,
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handle_nccl_pre_warm,
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handle_npu_backends,
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handle_xpu_backends,
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)
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handle_hpu_backends(server_args)
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handle_cpu_backends(server_args)
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handle_npu_backends(server_args)
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handle_mps_backends(server_args)
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handle_xpu_backends(server_args)
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# OOT platform plugins set fields directly (an interface this tree
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# does not own); the diff records what they applied.
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declare_direct_writes(
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server_args,
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f"platform:{current_platform.device_name}",
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current_platform.apply_server_args_defaults,
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)
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gpu_mem = get_device_memory_capacity(cfg.device)
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# Handle memory-related, chunked prefill, and CUDA graph batch size configurations.
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from sglang.srt.arg_groups.memory_hook import handle_gpu_memory_settings
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handle_gpu_memory_settings(server_args, gpu_mem)
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# Apply model-specific adjustments.
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from sglang.srt.arg_groups.model_hook import (
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handle_model_capability_adjustments,
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handle_model_specific_adjustments,
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)
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handle_model_specific_adjustments(server_args)
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# Set kernel backends.
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run_post_process_pass(server_args, _sampling_backend_default)
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# Must run before _handle_attention_backend_compatibility so the
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# deterministic backend is set before auto-detection fills it in.
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from sglang.srt.arg_groups.attention_hook import (
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handle_attention_backend_compatibility,
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handle_deterministic_inference,
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handle_linear_attn_backend,
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handle_multi_item_scoring,
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)
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handle_deterministic_inference(server_args)
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handle_attention_backend_compatibility(server_args)
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# Must run after the attention backend is resolved so the trtllm_mla
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# default (auto-selected for DeepseekV3ForCausalLM on sm100) is visible.
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disable_prefill_cuda_graph_for_deepseek_trtllm_mla(server_args)
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from sglang.srt.arg_groups.mamba_hook import (
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handle_int8_mamba_checkpoint,
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handle_mamba_backend,
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)
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handle_mamba_backend(server_args)
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handle_int8_mamba_checkpoint(server_args)
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handle_linear_attn_backend(server_args)
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handle_kv4_compatibility(server_args)
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handle_mxfp8_kv_cache_compatibility(server_args)
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run_post_process_pass(server_args, _page_size_default)
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handle_amd_specifics(server_args)
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handle_nccl_pre_warm(server_args)
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handle_grammar_backend(server_args)
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# Handle multi-item scoring constraints. Must run after the above so
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# the final attention backend and chunked_prefill_size are in effect.
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handle_multi_item_scoring(server_args)
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# Backend-dependent half of --prefill-only-disable-kv-cache validation.
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# Must stay after _handle_attention_backend_compatibility() (above) and
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# _handle_multi_item_scoring() so the resolved prefill backend is final;
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# the flag/precondition half runs earlier in
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# _validate_prefill_only_disable_kv_cache_args().
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handle_prefill_only_disable_kv_cache(server_args)
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# Handle Hicache settings.
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handle_hicache(server_args)
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# Handle data parallelism.
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handle_data_parallelism(server_args)
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# Normalize load balancing defaults.
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handle_load_balance_method(server_args)
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# Re-apply after model-specific defaults resolve attention_backend so
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# canonical CP mirrors to the right legacy runtime aliases.
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handle_legacy_cp_arguments(server_args)
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# Handle context parallelism.
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handle_context_parallelism(server_args)
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# Handle MoE configurations.
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from sglang.srt.arg_groups.moe_hook import (
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handle_a2a_moe,
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handle_moe_kernel_config,
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validate_cutedsl_a2a_token_budget,
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validate_deepep_v2_dispatch_token_budget,
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validate_deepep_v2_speculative_draft,
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)
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handle_moe_kernel_config(server_args)
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handle_a2a_moe(server_args)
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handle_eplb_and_dispatch(server_args)
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handle_expert_distribution_metrics(server_args)
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handle_elastic_ep(server_args)
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validate_experimental_sgl_marlin(server_args)
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# Handle pipeline parallelism.
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run_post_process_pass(server_args, _pipeline_parallel_overlap_disable)
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# Handle speculative decoding logic.
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from sglang.srt.arg_groups.speculative_hook import handle_speculative_decoding
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handle_speculative_decoding(server_args)
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# Validate the CuteDSL A2A token budget now that num_tokens_per_req is final.
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validate_cutedsl_a2a_token_budget(server_args)
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# Handle model loading format.
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handle_load_format(server_args)
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# Handle Encoder disaggregation.
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handle_encoder_disaggregation(server_args)
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# Validate tokenizer settings.
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handle_tokenizer_batching(server_args)
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# Propagate environment variables.
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handle_environment_variables(server_args)
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# Validate cache settings.
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handle_cache_compatibility(server_args)
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handle_page_major_kv_layout(server_args)
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handle_unified_memory_pool(server_args)
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# Handle diffusion LLM inference.
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from sglang.srt.arg_groups.dllm_hook import handle_dllm_inference
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handle_dllm_inference(server_args)
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# Handle crash dump environment variables (must run before CUDA init).
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handle_crash_dump_env(server_args)
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# Handle debug utilities.
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handle_debug_utils(server_args)
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# Handle any other necessary validations.
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handle_other_validations(server_args)
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# Model-capability adjustments that legacy code applied at model-load
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# time; last declarations of the resolution, mirroring that order.
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handle_model_capability_adjustments(server_args)
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# Validate after all batch-size declarations are visible.
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validate_deepep_v2_speculative_draft(server_args)
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validate_deepep_v2_dispatch_token_budget(server_args)
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server_args._resolution_finished = True
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@@ -17,6 +17,14 @@ from sglang.srt.utils.common import is_cuda, is_hip, is_host_cpu_arm64, is_npu
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logger = logging.getLogger(__name__)
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def handle_hardware_runtime_validation(server_args: Any):
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# This is intentionally independent of `server_args.device`: setting
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# SGLANG_USE_MLX opts into the MLX backend and must fail immediately if
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# the environment cannot honor that request. With the flag unset,
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# use_mlx() remains lazy and does not import MLX.
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use_mlx()
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def handle_npu_backends(server_args: Any):
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cfg = resolving_view(server_args)
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if cfg.device == "npu":
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@@ -22,7 +22,7 @@ Keep this file in the following top-level order:
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aliases. A choice list used by only one field belongs inline in that field.
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4. ``ServerArgs``: fields first, then resolution/validation helpers, then CLI
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registration and small query helpers. New resolution steps are appended at
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the end of ``_run_resolution_pipeline``, immediately before resolution is
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the end of ``arg_groups.pipeline.run_resolution_pipeline``, immediately
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marked complete, unless an earlier dependency is documented explicitly.
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5. Module-level ``ServerArgs`` construction/runtime shims.
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6. Networking constants and ``PortArgs``.
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@@ -57,7 +57,6 @@ from sglang.srt.arg_groups.argparse_actions import (
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)
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from sglang.srt.arg_groups.overrides import (
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attention_backends_of,
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declare_direct_writes,
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mamba_extra_buffer_lazy_of,
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mamba_extra_buffer_of,
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remote_instance_transfer_engine_of,
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@@ -66,7 +65,6 @@ from sglang.srt.arg_groups.overrides import (
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)
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from sglang.srt.environ import envs
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from sglang.srt.function_call.function_call_parser import FunctionCallParser
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from sglang.srt.hardware_backend.mlx.runtime import use_mlx
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from sglang.srt.lora.lora_registry import LoRARef
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from sglang.srt.model_executor.cuda_graph_config import (
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Backend,
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@@ -81,7 +79,6 @@ from sglang.srt.speculative.decoupled_spec_io import DecoupledSpecIpcConfig
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from sglang.srt.utils.common import (
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LORA_TARGET_ALL_MODULES,
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SUPPORTED_LORA_TARGET_MODULES,
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get_device_memory_capacity,
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human_readable_int,
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is_flashinfer_available,
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is_hip,
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@@ -3690,8 +3687,10 @@ class ServerArgs:
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"read that partial output as fresh input. Build a new record "
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"from the corrected arguments."
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)
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from sglang.srt.arg_groups.pipeline import run_resolution_pipeline
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try:
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self._run_resolution_pipeline()
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run_resolution_pipeline(self)
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except BaseException:
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# The handlers that ran already declared, and they are not
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# idempotent over their own output.
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@@ -3774,345 +3773,6 @@ class ServerArgs:
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declare_resolution(self, source, **fields)
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def _run_resolution_pipeline(self):
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"""
|
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Orchestrates the handling of various server arguments, ensuring proper configuration and validation.
|
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|
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Dispatcher style principles:
|
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1. Keep this method as an ordered dispatcher. Each step should be a
|
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named self._handle_* call; put imports, conditionals, mutations, and
|
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raises inside helpers instead of inline here.
|
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2. Keep the dummy-model boundary as early as correctness allows. Only
|
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model-independent bootstrap, API/network/protocol validation, and
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errors that should fire for dummy models should run before it.
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3. Order handlers by dependency domains, not by historical insertion:
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internal/bootstrap, API/network/protocol, model source/path
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resolution, hardware/platform, model-specific adjustment,
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parallelism, kernel/attention backend, cuda graph, memory/cache,
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and advanced/debug features.
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4. Hide narrow integrations behind general handler names. The
|
||||
dispatcher should say what phase is being handled, not expose a
|
||||
vendor-, hook-, or feature-specific implementation detail.
|
||||
5. Give each handler one clear contract: what state it expects, what it
|
||||
may mutate, and whether it validates only. Long ordering comments
|
||||
belong in the helper or signal that the helper should be split.
|
||||
"""
|
||||
|
||||
# What the caller asked for, before any handler runs; this plus the
|
||||
# stash is the resolution result the projection reads.
|
||||
self._raw_input = {
|
||||
field.name: getattr(self, field.name) for field in dataclasses.fields(self)
|
||||
}
|
||||
|
||||
# Declaration stash for the override/post-process passes. Set before any
|
||||
# short-circuit (none/dummy model paths) so run_post_process_pass and
|
||||
# direct handler invocations can rely on it even when
|
||||
# _handle_model_specific_adjustments never runs.
|
||||
self._resolved_overrides = []
|
||||
|
||||
cfg = resolving_view(self)
|
||||
|
||||
from sglang.srt.arg_groups.mega_moe_hook import handle_mega_moe
|
||||
|
||||
handle_mega_moe(self)
|
||||
from sglang.srt.arg_groups.serving_hook import (
|
||||
handle_asr_validation,
|
||||
handle_crash_dump_env,
|
||||
handle_debug_utils,
|
||||
handle_deprecated_args,
|
||||
handle_environment_variables,
|
||||
handle_grammar_backend,
|
||||
handle_load_balance_method,
|
||||
handle_media_url_security,
|
||||
handle_missing_default_values,
|
||||
handle_multimodal,
|
||||
handle_other_validations,
|
||||
handle_prefill_delayer_env_compat,
|
||||
handle_return_hidden_states_mode,
|
||||
handle_ssl_validation,
|
||||
handle_tokenizer_batching,
|
||||
)
|
||||
|
||||
handle_return_hidden_states_mode(self)
|
||||
handle_media_url_security(self)
|
||||
from sglang.srt.arg_groups.hicache_hook import (
|
||||
handle_hicache,
|
||||
handle_hicache_ratio_default,
|
||||
)
|
||||
|
||||
handle_hicache_ratio_default(self)
|
||||
from sglang.srt.arg_groups.validation_hook import (
|
||||
validate_experimental_sgl_marlin,
|
||||
validate_prefill_decode_interval,
|
||||
)
|
||||
|
||||
validate_prefill_decode_interval(self)
|
||||
|
||||
# Reject an explicitly enabled but incompatible hardware runtime before
|
||||
# model path resolution, downloads, or the dummy-model short circuit.
|
||||
self._handle_hardware_runtime_validation()
|
||||
if cfg.model_path.lower() in ["none", "dummy"]:
|
||||
return
|
||||
|
||||
from sglang.srt.arg_groups.model_path_hook import (
|
||||
handle_load_format,
|
||||
handle_model_source_paths,
|
||||
)
|
||||
|
||||
handle_model_source_paths(self)
|
||||
|
||||
# Validate mm_process_config.
|
||||
handle_multimodal(self)
|
||||
# Validate SSL arguments early.
|
||||
handle_ssl_validation(self)
|
||||
# Validate transcription/ASR-specific server args.
|
||||
handle_asr_validation(self)
|
||||
|
||||
# Handle deprecated arguments.
|
||||
handle_deprecated_args(self)
|
||||
|
||||
# Handle deprecated environment variables for prefill delayer.
|
||||
handle_prefill_delayer_env_compat(self)
|
||||
|
||||
# Set missing default values.
|
||||
handle_missing_default_values(self)
|
||||
|
||||
# expert_pack may replace a raw GGUF input with its generated local
|
||||
# model metadata before any model-specific handler calls get_model_config.
|
||||
# It also establishes eager-only invariants before CUDA graph parsing.
|
||||
from sglang.srt.arg_groups.expert_pack_hook import handle_expert_pack
|
||||
|
||||
handle_expert_pack(self)
|
||||
|
||||
# Validate PD disaggregation flags before CUDA graph config.
|
||||
from sglang.srt.arg_groups.pd_disaggregation_hook import (
|
||||
handle_encoder_disaggregation,
|
||||
handle_pd_disaggregation,
|
||||
)
|
||||
|
||||
handle_pd_disaggregation(self)
|
||||
|
||||
# Normalize deprecated CP aliases before validations or model-specific
|
||||
# defaults inspect enable_prefill_cp/cp_strategy.
|
||||
from sglang.srt.arg_groups.parallel_hook import (
|
||||
handle_context_parallelism,
|
||||
handle_data_parallelism,
|
||||
handle_dcp_validation,
|
||||
handle_dwdp,
|
||||
handle_elastic_ep,
|
||||
handle_eplb_and_dispatch,
|
||||
handle_expert_distribution_metrics,
|
||||
handle_legacy_cp_arguments,
|
||||
)
|
||||
|
||||
handle_legacy_cp_arguments(self)
|
||||
from sglang.srt.arg_groups.kv_cache_hook import (
|
||||
handle_cache_compatibility,
|
||||
handle_kv4_compatibility,
|
||||
handle_mxfp8_kv_cache_compatibility,
|
||||
handle_page_major_kv_layout,
|
||||
handle_prefill_only_disable_kv_cache,
|
||||
handle_unified_memory_pool,
|
||||
validate_prefill_only_disable_kv_cache_args,
|
||||
)
|
||||
|
||||
validate_prefill_only_disable_kv_cache_args(self)
|
||||
handle_dcp_validation(self)
|
||||
|
||||
# Model-arch prefill CUDA-graph default must land before cuda-graph
|
||||
# resolution (the declarative registry materializes too late to affect
|
||||
# it). Inkling opts into full-graph prefill capture here.
|
||||
from sglang.srt.arg_groups.cuda_graph_hook import (
|
||||
apply_inkling_prefill_cuda_graph_default,
|
||||
apply_muse_glimmer_prefill_cuda_graph_max_bs_default,
|
||||
disable_prefill_cuda_graph_for_deepseek_trtllm_mla,
|
||||
handle_cuda_graph_config,
|
||||
)
|
||||
|
||||
apply_inkling_prefill_cuda_graph_default(self)
|
||||
apply_muse_glimmer_prefill_cuda_graph_max_bs_default(self)
|
||||
|
||||
# must run before _handle_cuda_graph_config and _handle_data_parallelism
|
||||
handle_dwdp(self)
|
||||
|
||||
handle_cuda_graph_config(self)
|
||||
|
||||
# Handle device-specific backends.
|
||||
from sglang.srt.arg_groups.platform_hook import (
|
||||
handle_amd_specifics,
|
||||
handle_cpu_backends,
|
||||
handle_hpu_backends,
|
||||
handle_mps_backends,
|
||||
handle_nccl_pre_warm,
|
||||
handle_npu_backends,
|
||||
handle_xpu_backends,
|
||||
)
|
||||
|
||||
handle_hpu_backends(self)
|
||||
handle_cpu_backends(self)
|
||||
handle_npu_backends(self)
|
||||
handle_mps_backends(self)
|
||||
handle_xpu_backends(self)
|
||||
|
||||
# OOT platform plugins set fields directly (an interface this tree
|
||||
# does not own); the diff records what they applied.
|
||||
declare_direct_writes(
|
||||
self,
|
||||
f"platform:{current_platform.device_name}",
|
||||
current_platform.apply_server_args_defaults,
|
||||
)
|
||||
|
||||
gpu_mem = get_device_memory_capacity(cfg.device)
|
||||
|
||||
# Handle memory-related, chunked prefill, and CUDA graph batch size configurations.
|
||||
from sglang.srt.arg_groups.memory_hook import handle_gpu_memory_settings
|
||||
|
||||
handle_gpu_memory_settings(self, gpu_mem)
|
||||
|
||||
# Apply model-specific adjustments.
|
||||
from sglang.srt.arg_groups.model_hook import (
|
||||
handle_model_capability_adjustments,
|
||||
handle_model_specific_adjustments,
|
||||
)
|
||||
|
||||
handle_model_specific_adjustments(self)
|
||||
|
||||
# Set kernel backends.
|
||||
self._handle_sampling_backend()
|
||||
# Must run before _handle_attention_backend_compatibility so the
|
||||
# deterministic backend is set before auto-detection fills it in.
|
||||
from sglang.srt.arg_groups.attention_hook import (
|
||||
handle_attention_backend_compatibility,
|
||||
handle_deterministic_inference,
|
||||
handle_linear_attn_backend,
|
||||
handle_multi_item_scoring,
|
||||
)
|
||||
|
||||
handle_deterministic_inference(self)
|
||||
handle_attention_backend_compatibility(self)
|
||||
# Must run after the attention backend is resolved so the trtllm_mla
|
||||
# default (auto-selected for DeepseekV3ForCausalLM on sm100) is visible.
|
||||
disable_prefill_cuda_graph_for_deepseek_trtllm_mla(self)
|
||||
from sglang.srt.arg_groups.mamba_hook import (
|
||||
handle_int8_mamba_checkpoint,
|
||||
handle_mamba_backend,
|
||||
)
|
||||
|
||||
handle_mamba_backend(self)
|
||||
handle_int8_mamba_checkpoint(self)
|
||||
handle_linear_attn_backend(self)
|
||||
handle_kv4_compatibility(self)
|
||||
handle_mxfp8_kv_cache_compatibility(self)
|
||||
self._handle_page_size()
|
||||
handle_amd_specifics(self)
|
||||
handle_nccl_pre_warm(self)
|
||||
handle_grammar_backend(self)
|
||||
|
||||
# Handle multi-item scoring constraints. Must run after the above so
|
||||
# the final attention backend and chunked_prefill_size are in effect.
|
||||
handle_multi_item_scoring(self)
|
||||
|
||||
# Backend-dependent half of --prefill-only-disable-kv-cache validation.
|
||||
# Must stay after _handle_attention_backend_compatibility() (above) and
|
||||
# _handle_multi_item_scoring() so the resolved prefill backend is final;
|
||||
# the flag/precondition half runs earlier in
|
||||
# _validate_prefill_only_disable_kv_cache_args().
|
||||
handle_prefill_only_disable_kv_cache(self)
|
||||
|
||||
# Handle Hicache settings.
|
||||
handle_hicache(self)
|
||||
|
||||
# Handle data parallelism.
|
||||
handle_data_parallelism(self)
|
||||
|
||||
# Normalize load balancing defaults.
|
||||
handle_load_balance_method(self)
|
||||
|
||||
# Re-apply after model-specific defaults resolve attention_backend so
|
||||
# canonical CP mirrors to the right legacy runtime aliases.
|
||||
handle_legacy_cp_arguments(self)
|
||||
|
||||
# Handle context parallelism.
|
||||
handle_context_parallelism(self)
|
||||
|
||||
# Handle MoE configurations.
|
||||
from sglang.srt.arg_groups.moe_hook import (
|
||||
handle_a2a_moe,
|
||||
handle_moe_kernel_config,
|
||||
validate_cutedsl_a2a_token_budget,
|
||||
validate_deepep_v2_dispatch_token_budget,
|
||||
validate_deepep_v2_speculative_draft,
|
||||
)
|
||||
|
||||
handle_moe_kernel_config(self)
|
||||
handle_a2a_moe(self)
|
||||
handle_eplb_and_dispatch(self)
|
||||
handle_expert_distribution_metrics(self)
|
||||
handle_elastic_ep(self)
|
||||
validate_experimental_sgl_marlin(self)
|
||||
|
||||
# Handle pipeline parallelism.
|
||||
self._handle_pipeline_parallelism()
|
||||
|
||||
# Handle speculative decoding logic.
|
||||
|
||||
from sglang.srt.arg_groups.speculative_hook import handle_speculative_decoding
|
||||
|
||||
handle_speculative_decoding(self)
|
||||
|
||||
# Validate the CuteDSL A2A token budget now that num_tokens_per_req is final.
|
||||
validate_cutedsl_a2a_token_budget(self)
|
||||
|
||||
# Handle model loading format.
|
||||
handle_load_format(self)
|
||||
|
||||
# Handle Encoder disaggregation.
|
||||
handle_encoder_disaggregation(self)
|
||||
|
||||
# Validate tokenizer settings.
|
||||
handle_tokenizer_batching(self)
|
||||
|
||||
# Propagate environment variables.
|
||||
handle_environment_variables(self)
|
||||
|
||||
# Validate cache settings.
|
||||
handle_cache_compatibility(self)
|
||||
|
||||
handle_page_major_kv_layout(self)
|
||||
|
||||
handle_unified_memory_pool(self)
|
||||
|
||||
# Handle diffusion LLM inference.
|
||||
from sglang.srt.arg_groups.dllm_hook import handle_dllm_inference
|
||||
|
||||
handle_dllm_inference(self)
|
||||
|
||||
# Handle crash dump environment variables (must run before CUDA init).
|
||||
handle_crash_dump_env(self)
|
||||
|
||||
# Handle debug utilities.
|
||||
handle_debug_utils(self)
|
||||
|
||||
# Handle any other necessary validations.
|
||||
handle_other_validations(self)
|
||||
|
||||
# Model-capability adjustments that legacy code applied at model-load
|
||||
# time; last declarations of the resolution, mirroring that order.
|
||||
handle_model_capability_adjustments(self)
|
||||
|
||||
# Validate after all batch-size declarations are visible.
|
||||
validate_deepep_v2_speculative_draft(self)
|
||||
validate_deepep_v2_dispatch_token_budget(self)
|
||||
|
||||
self._resolution_finished = True
|
||||
|
||||
def _handle_hardware_runtime_validation(self):
|
||||
# This is intentionally independent of self.device: setting
|
||||
# SGLANG_USE_MLX opts into the MLX backend and must fail immediately if
|
||||
# the environment cannot honor that request. With the flag unset,
|
||||
# use_mlx() remains lazy and does not import MLX.
|
||||
use_mlx()
|
||||
|
||||
# ------------------------------------------------------------------
|
||||
# CUDA graph configuration resolution
|
||||
# ------------------------------------------------------------------
|
||||
@@ -4366,16 +4026,6 @@ class ServerArgs:
|
||||
|
||||
return supports_mamba_cache_extra_buffer(self, model_arch)
|
||||
|
||||
def _handle_sampling_backend(self):
|
||||
# Moved to the resolution pipeline (arg_groups/overrides.py:
|
||||
# _sampling_backend_default), invoked here at its legacy slot.
|
||||
from sglang.srt.arg_groups.overrides import (
|
||||
_sampling_backend_default,
|
||||
run_post_process_pass,
|
||||
)
|
||||
|
||||
run_post_process_pass(self, _sampling_backend_default)
|
||||
|
||||
def _get_default_attn_backend(self, use_mla_backend: bool, model_config):
|
||||
"""
|
||||
Auto select the fastest attention backend.
|
||||
@@ -4451,16 +4101,6 @@ class ServerArgs:
|
||||
else:
|
||||
return "triton"
|
||||
|
||||
def _handle_page_size(self):
|
||||
# Moved to the resolution pipeline (arg_groups/overrides.py:
|
||||
# _page_size_default), invoked here at its legacy slot.
|
||||
from sglang.srt.arg_groups.overrides import (
|
||||
_page_size_default,
|
||||
run_post_process_pass,
|
||||
)
|
||||
|
||||
run_post_process_pass(self, _page_size_default)
|
||||
|
||||
def cutedsl_moe_max_num_tokens(self) -> int:
|
||||
"""Largest number of tokens a single forward routes through a CuteDSL
|
||||
MoE layer on one (DP) rank. Single source of truth for both the
|
||||
@@ -4511,16 +4151,6 @@ class ServerArgs:
|
||||
|
||||
# ===== END TO BE REFACTORED ====
|
||||
|
||||
def _handle_pipeline_parallelism(self):
|
||||
# Moved to the resolution pipeline (arg_groups/overrides.py:
|
||||
# _pipeline_parallel_overlap_disable), invoked here at its legacy slot.
|
||||
from sglang.srt.arg_groups.overrides import (
|
||||
_pipeline_parallel_overlap_disable,
|
||||
run_post_process_pass,
|
||||
)
|
||||
|
||||
run_post_process_pass(self, _pipeline_parallel_overlap_disable)
|
||||
|
||||
def _is_mistral_native_format(self) -> bool:
|
||||
"""True iff the checkpoint requires load_format=mistral.
|
||||
|
||||
|
||||
@@ -311,6 +311,11 @@ def _hook_declarations(dispatch, source_module):
|
||||
return out
|
||||
|
||||
|
||||
# The dispatcher's own file: its imports are what map a bare-name call in it
|
||||
# to the family that defines the callable.
|
||||
_DISPATCH_MODULE = _SRT / "arg_groups" / "pipeline.py"
|
||||
|
||||
|
||||
def _hook_functions():
|
||||
"""Module-level resolution functions under `arg_groups/`.
|
||||
|
||||
@@ -341,7 +346,7 @@ def _pipeline():
|
||||
# against `arg_groups/` alongside the record's own methods.
|
||||
hooks = _hook_functions()
|
||||
methods.update({name: node for name, node in hooks.items() if name not in methods})
|
||||
dispatch = methods["_run_resolution_pipeline"]
|
||||
dispatch = methods["run_resolution_pipeline"]
|
||||
# A step is either a record method (`self._x()`) or a bare-name hook call.
|
||||
steps = [
|
||||
name
|
||||
@@ -501,7 +506,7 @@ def _declaration_positions():
|
||||
build_index, build_step, build_method, build_line_in_body = site
|
||||
first_build = (build_index, build_step)
|
||||
|
||||
source_module = _SRT / "server_args.py"
|
||||
source_module = _DISPATCH_MODULE
|
||||
imported = {}
|
||||
for node in ast.walk(_parsed(source_module)):
|
||||
if isinstance(node, ast.ImportFrom) and node.module:
|
||||
@@ -551,9 +556,9 @@ def _declaration_positions():
|
||||
# the dispatcher*: a handler body sits further down the file than the
|
||||
# dispatcher that calls it, so a line number taken from one scope says
|
||||
# nothing about ordering against the other.
|
||||
dispatch = methods["_run_resolution_pipeline"]
|
||||
dispatch = methods["run_resolution_pipeline"]
|
||||
build_line = step_lines[first_build[1]]
|
||||
for field, line in _hook_declarations(dispatch, _SRT / "server_args.py").items():
|
||||
for field, line in _hook_declarations(dispatch, _DISPATCH_MODULE).items():
|
||||
if field in wanted and line > build_line:
|
||||
declared_at[field] = max(
|
||||
declared_at.get(field, (build_index, 1)), (10**6, 1)
|
||||
@@ -656,8 +661,8 @@ class TestModelConfigReadsResolvedInput(CustomTestCase):
|
||||
documents a hazard that no longer exists and hides the day one appears.
|
||||
"""
|
||||
steps, methods, reached, step_lines = _pipeline()
|
||||
dispatch = methods["_run_resolution_pipeline"]
|
||||
hooks = _hook_declarations(dispatch, _SRT / "server_args.py")
|
||||
dispatch = methods["run_resolution_pipeline"]
|
||||
hooks = _hook_declarations(dispatch, _DISPATCH_MODULE)
|
||||
build_line = min(
|
||||
step_lines[step]
|
||||
for step in steps
|
||||
@@ -695,8 +700,8 @@ class TestModelConfigReadsResolvedInput(CustomTestCase):
|
||||
then, rather than keeping a note about a hazard that is gone.
|
||||
"""
|
||||
steps, methods, reached, step_lines = _pipeline()
|
||||
dispatch = methods["_run_resolution_pipeline"]
|
||||
positions = _opaque_callback_positions(dispatch, _SRT / "server_args.py")
|
||||
dispatch = methods["run_resolution_pipeline"]
|
||||
positions = _opaque_callback_positions(dispatch, _DISPATCH_MODULE)
|
||||
self.assertEqual(
|
||||
sorted(positions),
|
||||
[
|
||||
|
||||
@@ -526,14 +526,16 @@ class TestResolutionDeclarations(CustomTestCase):
|
||||
reset_context()
|
||||
child = pickle.loads(blob)
|
||||
entered = []
|
||||
original = ServerArgs._run_resolution_pipeline
|
||||
from sglang.srt.arg_groups import pipeline as pipeline_module
|
||||
|
||||
def counted(self, _original=original):
|
||||
original = pipeline_module.run_resolution_pipeline
|
||||
|
||||
def counted(server_args, _original=original):
|
||||
entered.append(1)
|
||||
return _original(self)
|
||||
return _original(server_args)
|
||||
|
||||
with unittest.mock.patch.object(
|
||||
ServerArgs, "_run_resolution_pipeline", counted
|
||||
pipeline_module, "run_resolution_pipeline", counted
|
||||
):
|
||||
publish(child, role="scheduler")
|
||||
self.assertEqual(
|
||||
@@ -848,7 +850,7 @@ class TestResolutionDeclarations(CustomTestCase):
|
||||
"capturing like apply_server_args_defaults",
|
||||
)
|
||||
|
||||
pipeline = (_SRT / "server_args.py").read_text(encoding="utf-8-sig")
|
||||
pipeline = (_SRT / "arg_groups" / "pipeline.py").read_text(encoding="utf-8-sig")
|
||||
for hook in sorted(taking_the_record):
|
||||
self.assertIn(
|
||||
f"current_platform.{hook},",
|
||||
@@ -892,9 +894,11 @@ class TestResolutionDeclarations(CustomTestCase):
|
||||
server_args.attention_backend = "triton"
|
||||
server_args.schedule_conservativeness = 0.5
|
||||
|
||||
with unittest.mock.patch.object(
|
||||
server_args_module, "current_platform", _Plugin()
|
||||
):
|
||||
from sglang.srt.arg_groups import pipeline as pipeline_module
|
||||
|
||||
# The write capture runs in the dispatcher, so that is the namespace the
|
||||
# plugin has to be installed in.
|
||||
with unittest.mock.patch.object(pipeline_module, "current_platform", _Plugin()):
|
||||
server_args = self._resolve({})
|
||||
self.assertEqual(
|
||||
(
|
||||
|
||||
@@ -445,14 +445,16 @@ class TestResolutionIsReproducible(_RestoresProcessState, CustomTestCase):
|
||||
record.resolve_once()
|
||||
|
||||
entries = []
|
||||
original = ServerArgs._run_resolution_pipeline
|
||||
from sglang.srt.arg_groups import pipeline as pipeline_module
|
||||
|
||||
def counted(self):
|
||||
original = pipeline_module.run_resolution_pipeline
|
||||
|
||||
def counted(server_args):
|
||||
entries.append(1)
|
||||
return original(self)
|
||||
return original(server_args)
|
||||
|
||||
with unittest.mock.patch.object(
|
||||
ServerArgs, "_run_resolution_pipeline", counted
|
||||
pipeline_module, "run_resolution_pipeline", counted
|
||||
):
|
||||
record.resolve_once()
|
||||
self.assertEqual(
|
||||
@@ -964,7 +966,7 @@ class TestTheResolutionSeamHasOneCaller(CustomTestCase):
|
||||
for path in sorted(package_root.rglob("*.py")):
|
||||
try:
|
||||
source = path.read_text()
|
||||
if "_run_resolution_pipeline" not in source:
|
||||
if "run_resolution_pipeline" not in source:
|
||||
continue
|
||||
tree = ast.parse(source)
|
||||
except SyntaxError:
|
||||
@@ -984,8 +986,8 @@ class TestTheResolutionSeamHasOneCaller(CustomTestCase):
|
||||
for node in ast.walk(tree):
|
||||
if (
|
||||
isinstance(node, ast.Call)
|
||||
and isinstance(node.func, ast.Attribute)
|
||||
and node.func.attr == "_run_resolution_pipeline"
|
||||
and isinstance(node.func, ast.Name)
|
||||
and node.func.id == "run_resolution_pipeline"
|
||||
):
|
||||
rel = path.relative_to(package_root).as_posix()
|
||||
callers.append((rel, ".".join(scopes.get(id(node), ()))))
|
||||
@@ -1131,12 +1133,14 @@ class TestResolutionStaysLazy(CustomTestCase):
|
||||
import sglang
|
||||
|
||||
srt = pathlib.Path(next(iter(sglang.__path__))).resolve() / "srt"
|
||||
tree = ast.parse((srt / "server_args.py").read_text(encoding="utf-8-sig"))
|
||||
tree = ast.parse(
|
||||
(srt / "arg_groups" / "pipeline.py").read_text(encoding="utf-8-sig")
|
||||
)
|
||||
dispatch = next(
|
||||
node
|
||||
for node in ast.walk(tree)
|
||||
if isinstance(node, ast.FunctionDef)
|
||||
and node.name == "_run_resolution_pipeline"
|
||||
and node.name == "run_resolution_pipeline"
|
||||
)
|
||||
early_return = min(
|
||||
(
|
||||
|
||||
@@ -81,37 +81,6 @@ def _field_reads(fn, holders):
|
||||
yield node.lineno, node.attr
|
||||
|
||||
|
||||
def _resolution_handlers():
|
||||
"""The `ServerArgs` methods the dispatcher reaches, transitively."""
|
||||
tree = ast.parse((_SRT / "server_args.py").read_text(encoding="utf-8-sig"))
|
||||
cls = next(
|
||||
node
|
||||
for node in ast.walk(tree)
|
||||
if isinstance(node, ast.ClassDef) and node.name == "ServerArgs"
|
||||
)
|
||||
methods = {
|
||||
node.name: node
|
||||
for node in cls.body
|
||||
if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef))
|
||||
}
|
||||
assert "_run_resolution_pipeline" in methods, "the dispatcher was renamed"
|
||||
seen, stack = set(), ["_run_resolution_pipeline"]
|
||||
while stack:
|
||||
name = stack.pop()
|
||||
if name in seen or name not in methods:
|
||||
continue
|
||||
seen.add(name)
|
||||
for node in ast.walk(methods[name]):
|
||||
if (
|
||||
isinstance(node, ast.Call)
|
||||
and isinstance(node.func, ast.Attribute)
|
||||
and isinstance(node.func.value, ast.Name)
|
||||
and node.func.value.id == "self"
|
||||
):
|
||||
stack.append(node.func.attr)
|
||||
return {name: methods[name] for name in seen}
|
||||
|
||||
|
||||
_DECLARERS = frozenset(
|
||||
{
|
||||
"_declare",
|
||||
@@ -469,35 +438,30 @@ class TestResolutionReadsTheDeclarations(CustomTestCase):
|
||||
+ "\n ".join(offenders),
|
||||
)
|
||||
|
||||
def test_no_handler_reads_a_field_off_self(self):
|
||||
handlers = _resolution_handlers()
|
||||
# What the dispatcher reaches inside the class is these read wrappers;
|
||||
# the package side is covered by
|
||||
# `test_no_hook_reads_a_field_off_the_record`. Pinned rather than
|
||||
# counted: a walk that collapsed to the wrappers would clear any floor
|
||||
# low enough to admit them.
|
||||
self.assertEqual(
|
||||
set(handlers),
|
||||
{
|
||||
"_run_resolution_pipeline",
|
||||
"_handle_hardware_runtime_validation",
|
||||
"_handle_page_size",
|
||||
"_handle_pipeline_parallelism",
|
||||
"_handle_sampling_backend",
|
||||
},
|
||||
f"the walk reached {sorted(handlers)}; if the dispatcher grew or "
|
||||
"lost a handler, add it here after checking it reads the view",
|
||||
def test_the_record_hosts_no_resolution_handler(self):
|
||||
"""The pipeline and every step it runs live under `arg_groups/`.
|
||||
|
||||
While a step was a method, it could read a raw field off `self` and
|
||||
`test_no_handler_reads_a_field_off_self` had to say it could not. There
|
||||
is no such method left, so the invariant is now the stronger one: the
|
||||
record hosts none of them. What the steps read is checked on the
|
||||
package side, by `test_no_hook_reads_a_field_off_the_record`.
|
||||
"""
|
||||
handlers = sorted(
|
||||
name
|
||||
for name, node in _record_members().items()
|
||||
if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef))
|
||||
and (
|
||||
name.split(".")[-1].startswith(("_handle_", "_validate_"))
|
||||
or "resolution_pipeline" in name
|
||||
)
|
||||
)
|
||||
offenders = []
|
||||
for name, fn in sorted(handlers.items()):
|
||||
for lineno, field in _field_reads(fn, {"self"}):
|
||||
offenders.append(f"server_args.py:{lineno} {name} reads self.{field}")
|
||||
self.assertEqual(
|
||||
offenders,
|
||||
handlers,
|
||||
[],
|
||||
"a resolution handler reads its own field; the field holds the raw "
|
||||
"input. Bind `cfg = resolving_view(self)` and read that:\n "
|
||||
+ "\n ".join(offenders),
|
||||
"a resolution handler is back on the record; it belongs in an "
|
||||
"`arg_groups` family, where the package-side guards can see it:\n "
|
||||
+ "\n ".join(handlers),
|
||||
)
|
||||
|
||||
def test_no_member_recomputes_from_a_raw_field(self):
|
||||
|
||||
Reference in New Issue
Block a user