Pull Request has been successfully merged by CANN-robot.
（Thank you for wangweidong's contribution.）
变更摘要
本 PR 仅修改 math/accumulate_nv2/docs/aclnnSum.md 中的产品支持情况表，将 npu="310b" 对应的 “Atlas 200I/500 A2推理产品” 由“不支持”更正为“支持”，使该文档与 math/accumulate_nv2/README.md 的产品支持表保持一致；其余产品行、CMake 与 spec.yaml 均未调整。
主要改动
- 修正 310b 行支持状态：
aclnnSum.md中npu="310b"区块内的<term>Atlas 200I/500 A2推理产品</term>由“不支持”改为“支持”，明确该产品对本接口的可用性。 - 统一文档口径：修改后该产品在
aclnnSum.md中的支持结论与仓库内math/accumulate_nv2/README.md对应行（原即为支持）一致，消除两处文档描述差异。 - 影响范围限定为文档：
npu="310b"以外的产品支持行（如id3Atlas A2 系列、id5Atlas 推理系列）及构建配置、接口实现均无改动。
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PR Approval Progress
✅ Congratulations! All modules have met the lgtm and approve requirements.
Module Approval Details
| module | lgtm status | approve status |
|---|---|---|
| */*/docs/acl*.md | ✅ 陈娇, 周奇龙 (2/2) | ✅ 陈娇 (1/1) |
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/approve: 周奇龙
修改内容
math/accumulate_nv2/docs/aclnnSum.md产品支持情况：<!-- npu="310b" id4 --> -- <term>Atlas 200I/500 A2推理产品</term>：不支持 +- <term>Atlas 200I/500 A2推理产品</term>：支持 <!-- end id4 -->依据
以 canndev 内置库为权威源逐字段核对：
ops/built-in/tbe/op_info_cfg/ai_core/ascend310b/aic-ascend310b-ops-info.ini的[AccumulateNV2]条目与ascend910b（Atlas A2 训练/推理）完全相同：input0.dtypefloat16,float,int32,int8,uint8output0.dtypefloat16,float,int32,int8,uint8dynamicShapeSupport.flagtruedynamicRankSupport.flagtrueop.patternbroadcastattr_Nint / all / required无任何差别对待的技术依据。产品↔芯片映射依据
npu-arch/references/npu-hardware-params.md§0：Atlas 200I/500 A2 推理 =ASCEND310B/DAV_3002/ Ascend310B1~B4。一致性
修正后与仓内
math/accumulate_nv2/README.md产品支持表一致（该行原本即为 √）。本 PR 只改这一行，README 与 CMake/spec 均不动。关联的Issue
https://gitcode.com/cann/ops-math/issues/4252