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[Dy2St][CINN] Auto enable prim / cinn flag / recompute when backend is CINN by SigureMo · Pull Request #71834 · PaddlePaddle/Paddle · GitHub
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[Dy2St][CINN] Auto enable prim / cinn flag / recompute when backend is CINN #71834
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Merged
SigureMo
merged 12 commits into
PaddlePaddle:develop
from
cattidea:dy2st/auto-enable-prim-cinn-recompute-when-backend-is-cinn
Mar 25, 2025
Merged
[Dy2St][CINN] Auto enable prim / cinn flag / recompute when backend is CINN #71834
SigureMo
merged 12 commits into
PaddlePaddle:develop
from
cattidea:dy2st/auto-enable-prim-cinn-recompute-when-backend-is-cinn
Mar 25, 2025
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你的PR提交成功，感谢你对开源项目的贡献! |
SigureMo
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Copilot
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zrr1999 and
gouzil
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Pull Request Overview
This PR fixes a bug in the Execute Infrastructure by auto-enabling prim, CINN flags, and recompute logic when the backend is CINN. Key changes include replacing string backend comparisons with a new Backend enum, refactoring guard context managers and related functions, and updating tests to align with the new backend API.
Reviewed Changes
Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| python/paddle/jit/dy2static/utils.py | Introduces environment variables and a new Backend enum with helper methods to differentiate CINN and PHI backends |
| test/deprecated/prim/prim/flags/test_prim_flags_case_deprecated.py | Removes the redundant use_cinn flag in tests and simplifies to use backend=None |
| python/paddle/jit/api.py | Updates to use the new Backend API and removes deprecated backend checks |
| python/paddle/jit/dy2static/program_translator.py | Refactors CINN enabling logic to use Backend.is_cinn() and updates backend_guard usage; removes deprecated string-based checks |
| python/paddle/jit/dy2static/pir_partial_program.py | Updates imports and usage to leverage the new Backend enum |
| test/dygraph_to_static/test_partial_program_hook.py | Passes an explicit Backend value to PirPrimHooker and removes use_cinn flags from test calls |
| python/paddle/jit/dy2static/partial_program.py | Replaces backend string comparisons with Backend.is_cinn() for improved correctness |
Comment on lines
1519
to
1521
| print(core._is_fwd_prim_enabled()) | ||
| with backend_guard(self.backend): | ||
| print(core._is_fwd_prim_enabled()) |
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Debug print statements appear to be left in production code; please remove or replace them with proper logging.
Suggested change
| print(core._is_fwd_prim_enabled()) | |
| with backend_guard(self.backend): | |
| print(core._is_fwd_prim_enabled()) | |
| logging_utils.info(core._is_fwd_prim_enabled()) | |
| with backend_guard(self.backend): | |
| logging_utils.info(core._is_fwd_prim_enabled()) |
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Pull Request Overview
This PR fixes a bug in the CINN backend integration for dynamic-to-static conversion by auto-enabling prim/CINN flags, refactoring backend handling, and updating related tests.
- Introduces a Backend Enum with helper methods and updated guard context managers.
- Refactors CINN flag checking and deprecates legacy build_strategy flags in favor of the new backend parameter.
- Updates test cases and related utility functions to remove the old use_cinn parameter.
Reviewed Changes
Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| python/paddle/jit/dy2static/utils.py | Adds Backend enum; refactors CINN flag logic and updates warning messages. |
| test/deprecated/prim/prim/flags/test_prim_flags_case_deprecated.py | Removes legacy use_cinn argument in test cases. |
| python/paddle/base/core.py | Updates flag enabling functions using get_flags. |
| python/paddle/jit/api.py | Removes deprecated backend checking and converts backend parameter using Backend enum. |
| python/paddle/jit/dy2static/pir_partial_program.py | Updates backend handling and guard context usage; refactors variable naming for full-graph passes. |
| python/paddle/jit/dy2static/partial_program.py | Updates backend comparison to use Backend enum. |
| test/dygraph_to_static/test_partial_program_hook.py | Revises hook instantiation with a defined Backend instead of None. |
Comments suppressed due to low confidence (1)
python/paddle/jit/dy2static/pir_partial_program.py:1084
- The variable name 'fused_bn_add_act_pass' was changed to 'full_graph_pre_process_pass' later in the diff; please update the comment or the naming in this context for consistency.
fused_bn_add_act_pass = FullGraphPreProcessPass(
| if build_strategy is not None and build_strategy.build_cinn_pass: | ||
| if build_strategy.build_cinn_pass: | ||
| warnings.warn( | ||
| "Use `build_strategy.build_cinn_pass = True` to enable CINN is deprecated, please use `backend = 'CINN'` instead." |
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Update the deprecation warning message to reflect that the backend parameter now uses a Backend enum, for example: "please use backend = Backend.CINN instead."
Suggested change
| "Use `build_strategy.build_cinn_pass = True` to enable CINN is deprecated, please use `backend = 'CINN'` instead." | |
| "Use `build_strategy.build_cinn_pass = True` to enable CINN is deprecated, please use `backend = Backend.CINN` instead." |
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Backend.CINN 不暴露给用户，用户仍然用 "CINN" 和 None，Backend.CINN 和 Backend.PHI 是内部类型安全的数据封装
SigureMo
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老 IR 单测，上次挂了这次又挂了，这里我觉得没必要测 CINN + 老 IR 的 prim 开启状态了，本来 build_strategy 这种设置方式也弃用了，这部分删掉，backend 测试相关逻辑会由 test_jit_backend 单测来承担
…n-backend-is-cinn
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Mar 25, 2025
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…s CINN (PaddlePaddle#71834) --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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PR Category
Execute Infrastructure
PR Types
Bug fixes
Description
确保在 PIR 下，使用
backend="CINN"能与FLAGS_use_cinn=1 FLAGS_prim_all=true FLAGS_prim_enable_dynamic=true有相同的效果新增
ENABLE_CINN_IN_DY2ST用于控制是否开启编译器，ENABLE_CINN_IN_DY2ST=0的话即便设置backend="CINN"也不会生效数据的一致性很重要，如 #71817 所述，能用 C++ flag 获取值的统一用 C++ flag 了（
FLAGS_prim_enable_dynamic、FLAGS_prim_skip_dynamic、FLAGS_use_cinn），用个flag_guard就能确保内部能感知了，维护起来非常方便分阶段暴露问题，本 PR 修复 bug，完善机制，下个 PR 只修改默认值，暴露切默认所带来的问题
Related links
CINN 切默认系列 PR
build_strategy.build_cinn_passand replace it withbackendoption #71815FLAGS_use_cinnviaos.getenv#71817