[RL] [FDConfig] Disable overlap schedule by default in RL

[liyonghua0910]

Motivation

暂时针对 RL 场景 (dynamic_load_weight=True) 关闭 overlap schedule，已知问题修复后再重新打开。

Modifications

Usage or Command

Accuracy Tests

Checklist

• Add at least a tag in the PR title.
  • Tag list: [[FDConfig],[APIServer],[Engine], [Scheduler], [PD Disaggregation], [Executor], [Graph Optimization], [Speculative Decoding], [RL], [Models], [Quantization], [Loader], [OP], [KVCache], [DataProcessor], [BugFix], [Docs], [CI], [Optimization], [Feature], [Benchmark], [Others], [XPU], [HPU], [GCU], [DCU], [Iluvatar], [Metax]]
  • You can add new tags based on the PR content, but the semantics must be clear.
• Format your code, run pre-commit before commit.
• Add unit tests. Please write the reason in this PR if no unit tests.
• Provide accuracy results.
• If the current PR is submitting to the release branch, make sure the PR has been submitted to the develop branch, then cherry-pick it to the release branch with the [Cherry-Pick] PR tag.

[paddle-bot]

Thanks for your contribution!

[PaddlePaddle-bot]

🤖 Paddle-CI-Agent | pr_review | 2026-05-07 19:19:30

📋 Review 摘要

PR 概述：在 FDConfig.postprocess() 中新增保护逻辑，当 dynamic_load_weight=True（RL 场景）时强制禁用 overlap schedule，规避已知 Bug。
变更范围：fastdeploy/config.py
影响面 Tag：[FDConfig] [RL]

📝 PR 规范检查

PR 标题中的 [FDConfig] Tag 合规；但 PR 描述中所有 section 内容均为空/仅模板占位符，不合规，需要填充实际内容。

标题建议（可直接复制）：

• [FDConfig][RL] Disable overlap schedule when dynamic_load_weight is enabled

PR 描述建议（可直接复制，必须复刻 checklist §D2 模板的完整结构）：

## Motivation
在 RL 训练场景下（`dynamic_load_weight=True`），overlap schedule 存在已知 Bug，会导致运行异常。当前临时在 `FDConfig.postprocess()` 中强制禁用，待 Bug 修复后再恢复启用。

## Modifications
- `fastdeploy/config.py`：在 `FDConfig.postprocess()` 中新增判断逻辑：当 `load_config` 不为 None 且 `load_config.dynamic_load_weight is True` 时，将 `scheduler_config.enable_overlap_schedule` 强制设为 `False`。

## Usage or Command
N/A

## Accuracy Tests
N/A

## Checklist

- [x] Add at least a tag in the PR title.
  - Tag list: [`[FDConfig]`,`[APIServer]`,`[Engine]`, `[Scheduler]`, `[PD Disaggregation]`, `[Executor]`, `[Graph Optimization]`, `[Speculative Decoding]`, `[RL]`, `[Models]`, `[Quantization]`, `[Loader]`, `[OP]`, `[KVCache]`, `[DataProcessor]`, `[BugFix]`, `[Docs]`, `[CI]`, `[Optimization]`, `[Feature]`, `[Benchmark]`, `[Others]`, `[XPU]`, `[HPU]`, `[GCU]`, `[DCU]`, `[Iluvatar]`, `[Metax]`]
  - You can add new tags based on the PR content, but the semantics must be clear.
- [ ] Format your code, run `pre-commit` before commit.
- [x] Add unit tests. Please write the reason in this PR if no unit tests.
- [x] Provide accuracy results.
- [ ] If the current PR is submitting to the `release` branch, make sure the PR has been submitted to the `develop` branch, then cherry-pick it to the `release` branch with the `[Cherry-Pick]` PR tag.

问题

未发现阻塞性问题。

总体评价

变更逻辑清晰，在 postprocess 中统一处理 RL 场景下的 overlap schedule 禁用，是合理的防御性处理。PR 描述需要补充完整，建议同步添加 [RL] Tag 以体现实际影响面。

[PaddlePaddle-bot]

🤖 Paddle-CI-Agent | ci_status_monitor | 2026-05-07 19:21:23

CI报告基于以下代码生成（30分钟更新一次）:

• PR commit: 7edb89a
• Merge base: d70f33d (branch: develop)
• 查看完整 Diff
• CI 详情

---

1 任务总览

所有 Required 任务均已通过，建议合并。✅

总执行（rerun次数）	总任务	✅ 通过	❌ 失败	⏳ 运行中	⏸️ 等待中	跳过
17(0)	17	11	1	2	3	0

2 任务状态汇总

2.1 Required任务 : 2/2 通过

必选任务阻塞合并，失败需优先处理。

状态	任务	耗时	根因	修复建议	日志	重跑
✅	其余 2 个必选任务通过	-	-	-	-	-

2.2 可选任务 — 9/15 通过

可选任务不阻塞合并，失败仅供参考。

状态	任务	耗时	日志	重跑
❌	Check PR Template	18s	Job	-
⏳	xpu_build_test / xpu-build-test	-	Job	-
⏳	Trigger Jenkins for PR	-	Job	-
⏸️	CI_HPU	-	-	-
⏸️	FD-Clone-Linux / code-clone	-	-	-
⏸️	Run iluvatar Tests / run_iluvatar_cases	-	-	-
✅	其余 9 个可选任务通过	-	-	-

---

3 失败详情（仅 required）

无 required 失败任务。

[codecov-commenter]

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