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已合并
[feat]: A5 only supports INF_NAN mode #35335
wanglijun55创建于 5月11日
[feat]: A5 only supports INF_NAN mode #35335
已合并
wanglijun55创建于 5月11日
从wanglijun55/pytorchv2.7.1-infnan合入到Ascend/pytorchv2.7.1
W
wanglijun55成员
5月11日

【合入来源】

如有社区issue，请关联issue链接
请勿携带内部流程信息（需求链接、问题单、内部issue等）

【修改方案】

A5上torch.utils.is_support_inf_nan()接口始终返回ture，INF_NAN_MODE_ENABLE和INF_NAN_MODE_FORCE_DISABLE两个环境变量配置不生效

【资料变更】

涉及资料更改，PR见https://gitcode.com/Ascend/pytorch/pull/35330

【接口变更】

涉及接口变更，torch.utils.is_support_inf_nan()接口在A5上始终返回ture，在其他型号上保持不变；

【功能验证】

UT测试ok

【CheckList】

likedislike
Pull Request已成功合入, 合并人@ascend-robot
（感谢 wanglijun55 的贡献）
Wwanglijun55成员
5月11日 创建了 pull request，commit 0d47d01d
ascend-robot
ascend-robot成员
5月11日 评论：

Thanks for your pull-request.
The full list of commands accepted by me can be found at here。
You can get sig-info at here

PR Approval Progress

✅ Congratulations! All modules have met the lgtm and approve requirements.

Module Approval Details

module lgtm status approve status
repo-Ascend/pytorch ✅ htchu, liangsongwei (2/2) ✅ htchu (1/1)
test ✅ liangsongwei, htchu (2/2) ✅ htchu (1/1)

💡 Tip:

  • Committer can comment /approve or /lgtm
  • Commenting /approve implies both code review (lgtm) and intent to merge (approve)

CLA Signature Pass

wanglijun55, thanks for your pull request. All authors of the commits have signed the CLA. 👍

likedislike
ascend-robotascend-robot成员
5月11日 添加了label：ascend-cla/yes
ascend-robot
ascend-robot成员
5月11日 评论：

当前仓库存在以下 保护分支 ：

Protected Branch Version Release
master
v2.11.0
v2.10.0
v2.7.1
v2.9.0
v2.12.0

评论 /sync <branch1> <branch2> ... 可将当前 PR 修改同步到其它分支（创建同步 PR）：
a) 如果当前 PR 是 Open 状态，同步操作将延迟到 PR 被合并时执行
b) 如果当前 PR 已经 Merged，将立即执行同步操作

注意：

  1. /sync 命令可以指定同步到多个分支，仅最后一个 /sync 命令生效
  2. 如果创建的同步 PR 不正确，可通过向同步 PR 的源分支提交轻量级 PR 完善，或使用 /close 命令关闭
likedislike
ascend-robot
ascend-robot成员
5月11日 评论：

Ascend docs pipeline is running...

likedislike
此处折叠了42条消息 查看更多
ascend-robotascend-robot成员
5月14日 added a commit that referenced this pull request
  • 79b6fd77 - [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Co-authored-by: weixin_47897441 Co-authored-by: wanglijun55 # message auto-generated for no-merge-commit merge: !35528 merge sync-pr35335-v2.7.1-infnan-to-v2.9.0 into v2.9.0 [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Created-by: ascend-ds-bot Commit-by: weixin_47897441;wanglijun55 Merged-by: ascend-robot Description: ### 1. Origin pull request: https://gitcode.com/Ascend/pytorch/merge_requests/35335 ### 2. Original pull request related issue(s): https://gitcode.com/Ascend/pytorch/issues/1918 ### 3. Original pull request related commit(s): | Sha | Datetime | Message | |---|---|---| |[92382e10](https://gitcode.com/Ascend/pytorch/commit/92382e10973ba5780721b079332366383ec841ff)|2026-05-12 21:49:33 +0800 CST|modify ut
    | |[1352140c](https://gitcode.com/Ascend/pytorch/commit/1352140cad591b7fc472db91eb726d1b553bd65e)|2026-05-11 20:54:16 +0800 CST|fix(npu): Ascend950 only supports INF_NAN mode, bypass env var checks

    Ascend950 does not support saturation mode. When users set
    INF_NAN_MODE_ENABLE=0 or INF_NAN_MODE_FORCE_DISABLE=1 on Ascend950,
    the code incorrectly falls into saturation mode path, causing
    RuntimeError: SET StreamOverflowSwitch Failed.

    Add early return in IsSupportInfNan() for Ascend950 to always return
    true, making both env vars ineffective on this device.

    Co-Authored-By: Claude Opus 4.7
    | See merge request: Ascend/pytorch!35528
    • [#35335](https://gitcode.com/Ascend/pytorch/merge_requests/35335)
[Compare with previous version](https://gitcode.com/Ascend/pytorch/merge_requests/35335/diffs?diff_id=6090176&start_sha=6a21cbe9f51912166ce1b0b001f908810dd4efed
ascend-robotascend-robot成员
5月14日 added a commit that referenced this pull request
  • 8b09edf0 - [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Co-authored-by: weixin_47897441 Co-authored-by: wanglijun55 # message auto-generated for no-merge-commit merge: !35527 merge sync-pr35335-v2.7.1-infnan-to-v2.10.0 into v2.10.0 [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Created-by: ascend-ds-bot Commit-by: weixin_47897441;wanglijun55 Merged-by: ascend-robot Description: ### 1. Origin pull request: https://gitcode.com/Ascend/pytorch/merge_requests/35335 ### 2. Original pull request related issue(s): https://gitcode.com/Ascend/pytorch/issues/1918 ### 3. Original pull request related commit(s): | Sha | Datetime | Message | |---|---|---| |[92382e10](https://gitcode.com/Ascend/pytorch/commit/92382e10973ba5780721b079332366383ec841ff)|2026-05-12 21:49:33 +0800 CST|modify ut
    | |[1352140c](https://gitcode.com/Ascend/pytorch/commit/1352140cad591b7fc472db91eb726d1b553bd65e)|2026-05-11 20:54:16 +0800 CST|fix(npu): Ascend950 only supports INF_NAN mode, bypass env var checks

    Ascend950 does not support saturation mode. When users set
    INF_NAN_MODE_ENABLE=0 or INF_NAN_MODE_FORCE_DISABLE=1 on Ascend950,
    the code incorrectly falls into saturation mode path, causing
    RuntimeError: SET StreamOverflowSwitch Failed.

    Add early return in IsSupportInfNan() for Ascend950 to always return
    true, making both env vars ineffective on this device.

    Co-Authored-By: Claude Opus 4.7
    | See merge request: Ascend/pytorch!35527
    • [#35335](https://gitcode.com/Ascend/pytorch/merge_requests/35335)
[Compare with previous version](https://gitcode.com/Ascend/pytorch/merge_requests/35335/diffs?diff_id=6090176&start_sha=099adbb156f8470245a6c7e2f9327ac98579b7cb
ascend-robotascend-robot成员
5月14日 added a commit that referenced this pull request
  • 0f80b4f2 - [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Co-authored-by: weixin_47897441 Co-authored-by: wanglijun55 # message auto-generated for no-merge-commit merge: !35526 merge sync-pr35335-v2.7.1-infnan-to-v2.11.0 into v2.11.0 [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Created-by: ascend-ds-bot Commit-by: weixin_47897441;wanglijun55 Merged-by: ascend-robot Description: ### 1. Origin pull request: https://gitcode.com/Ascend/pytorch/merge_requests/35335 ### 2. Original pull request related issue(s): https://gitcode.com/Ascend/pytorch/issues/1918 ### 3. Original pull request related commit(s): | Sha | Datetime | Message | |---|---|---| |[92382e10](https://gitcode.com/Ascend/pytorch/commit/92382e10973ba5780721b079332366383ec841ff)|2026-05-12 21:49:33 +0800 CST|modify ut
    | |[1352140c](https://gitcode.com/Ascend/pytorch/commit/1352140cad591b7fc472db91eb726d1b553bd65e)|2026-05-11 20:54:16 +0800 CST|fix(npu): Ascend950 only supports INF_NAN mode, bypass env var checks

    Ascend950 does not support saturation mode. When users set
    INF_NAN_MODE_ENABLE=0 or INF_NAN_MODE_FORCE_DISABLE=1 on Ascend950,
    the code incorrectly falls into saturation mode path, causing
    RuntimeError: SET StreamOverflowSwitch Failed.

    Add early return in IsSupportInfNan() for Ascend950 to always return
    true, making both env vars ineffective on this device.

    Co-Authored-By: Claude Opus 4.7
    | See merge request: Ascend/pytorch!35526
    • [#35335](https://gitcode.com/Ascend/pytorch/merge_requests/35335)
[Compare with previous version](https://gitcode.com/Ascend/pytorch/merge_requests/35335/diffs?diff_id=6090176&start_sha=a524725aa1bf9506a15bc46d18ab06f76ca258a9
ascend-robotascend-robot成员
5月14日 added a commit that referenced this pull request
  • beed7e94 - [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Co-authored-by: weixin_47897441 Co-authored-by: wanglijun55 # message auto-generated for no-merge-commit merge: !35525 merge sync-pr35335-v2.7.1-infnan-to-v2.12.0 into v2.12.0 [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Created-by: ascend-ds-bot Commit-by: weixin_47897441;wanglijun55 Merged-by: ascend-robot Description: ### 1. Origin pull request: https://gitcode.com/Ascend/pytorch/merge_requests/35335 ### 2. Original pull request related issue(s): https://gitcode.com/Ascend/pytorch/issues/1918 ### 3. Original pull request related commit(s): | Sha | Datetime | Message | |---|---|---| |[92382e10](https://gitcode.com/Ascend/pytorch/commit/92382e10973ba5780721b079332366383ec841ff)|2026-05-12 21:49:33 +0800 CST|modify ut
    | |[1352140c](https://gitcode.com/Ascend/pytorch/commit/1352140cad591b7fc472db91eb726d1b553bd65e)|2026-05-11 20:54:16 +0800 CST|fix(npu): Ascend950 only supports INF_NAN mode, bypass env var checks

    Ascend950 does not support saturation mode. When users set
    INF_NAN_MODE_ENABLE=0 or INF_NAN_MODE_FORCE_DISABLE=1 on Ascend950,
    the code incorrectly falls into saturation mode path, causing
    RuntimeError: SET StreamOverflowSwitch Failed.

    Add early return in IsSupportInfNan() for Ascend950 to always return
    true, making both env vars ineffective on this device.

    Co-Authored-By: Claude Opus 4.7
    | See merge request: Ascend/pytorch!35525
    • [#35335](https://gitcode.com/Ascend/pytorch/merge_requests/35335)
[Compare with previous version](https://gitcode.com/Ascend/pytorch/merge_requests/35335/diffs?diff_id=6090176&start_sha=f7f2b6adc17ad7f5b47f333323bc5a6b2742d25a
ascend-robotascend-robot成员
5月14日 added a commit that referenced this pull request
  • 20da0804 - [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Co-authored-by: weixin_47897441 Co-authored-by: wanglijun55 # message auto-generated for no-merge-commit merge: !35524 merge sync-pr35335-v2.7.1-infnan-to-master into master [sync] PR-35335: [feat]: A5 only supports INF_NAN mode Created-by: ascend-ds-bot Commit-by: weixin_47897441;wanglijun55 Merged-by: ascend-robot Description: ### 1. Origin pull request: https://gitcode.com/Ascend/pytorch/merge_requests/35335 ### 2. Original pull request related issue(s): https://gitcode.com/Ascend/pytorch/issues/1918 ### 3. Original pull request related commit(s): | Sha | Datetime | Message | |---|---|---| |[92382e10](https://gitcode.com/Ascend/pytorch/commit/92382e10973ba5780721b079332366383ec841ff)|2026-05-12 21:49:33 +0800 CST|modify ut
    | |[1352140c](https://gitcode.com/Ascend/pytorch/commit/1352140cad591b7fc472db91eb726d1b553bd65e)|2026-05-11 20:54:16 +0800 CST|fix(npu): Ascend950 only supports INF_NAN mode, bypass env var checks

    Ascend950 does not support saturation mode. When users set
    INF_NAN_MODE_ENABLE=0 or INF_NAN_MODE_FORCE_DISABLE=1 on Ascend950,
    the code incorrectly falls into saturation mode path, causing
    RuntimeError: SET StreamOverflowSwitch Failed.

    Add early return in IsSupportInfNan() for Ascend950 to always return
    true, making both env vars ineffective on this device.

    Co-Authored-By: Claude Opus 4.7
    | See merge request: Ascend/pytorch!35524
    • [#35335](https://gitcode.com/Ascend/pytorch/merge_requests/35335)
[Compare with previous version](https://gitcode.com/Ascend/pytorch/merge_requests/35335/diffs?diff_id=6090176&start_sha=28f80b4f919d11890ba64b6a8790a2606bb87eb7