[https://nvbugs/5503138] [fix] Remove compile warnings #8167
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Signed-off-by: Xiwen Yu <[email protected]>
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📝 WalkthroughWalkthroughIntroduces CUDA architecture guards for internal helpers, simplifies CUDA driver entrypoint selection to a single API, suppresses a specific NVCC diagnostic and removes unused pointer aliases, and reorders includes in a kernel runner source file. No public interfaces or control flow are changed. Changes
Estimated code review effort🎯 2 (Simple) | ⏱️ ~10 minutes Pre-merge checks and finishing touches❌ Failed checks (2 warnings)
✅ Passed checks (1 passed)
✨ Finishing touches
🧪 Generate unit tests (beta)
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Actionable comments posted: 0
🧹 Nitpick comments (1)
cpp/tensorrt_llm/kernels/trtllmGenKernels/gemm/KernelRunner.cpp (1)
19-23: LGTM! Include reordering resolves warnings.The reordering of these includes before
KernelRunner.hlikely fixes include-order or forward-declaration warnings.Optional: Per coding guidelines,
clang-format off/onshould be used sparingly with justification. Consider adding a brief comment explaining why these includes must precedeKernelRunner.h:// clang-format off +// These headers must be included before KernelRunner.h to avoid forward-declaration warnings #include "trtllmGen_gemm_export/GemmInterface.h"As per coding guidelines.
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📒 Files selected for processing (4)
cpp/tensorrt_llm/kernels/communicationKernels/mnnvlTwoShotAllreduceKernels.cu(2 hunks)cpp/tensorrt_llm/kernels/cutlass_kernels/fp8_blockscale_gemm/fp8_blockscale_tma_utils.cuh(0 hunks)cpp/tensorrt_llm/kernels/recoverFromRingAtten.cu(1 hunks)cpp/tensorrt_llm/kernels/trtllmGenKernels/gemm/KernelRunner.cpp(1 hunks)
💤 Files with no reviewable changes (1)
- cpp/tensorrt_llm/kernels/cutlass_kernels/fp8_blockscale_gemm/fp8_blockscale_tma_utils.cuh
🧰 Additional context used
📓 Path-based instructions (5)
**/*.{h,hpp,hh,hxx,cpp,cxx,cc,cu,cuh}
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**/*.{h,hpp,hh,hxx,cpp,cxx,cc,cu,cuh}: Namespace closing braces must include a trailing comment with the namespace name (e.g., '} // namespace foo').
Prefer const or constexpr variables over #define for constants.
Declare variables that are not modified after initialization as const.
Avoid magic literals in code; except for 0, nullptr, true, false. Use named constants for comparisons and logic.
Use Allman brace style for formatting.
Place the semicolon of an empty for/while loop on a new line.
Bodies of switch/while/do-while/for must be compound statements (brace-delimited), and if/else must always be followed by brace-delimited statements.
Type names (e.g., classes) must be CamelCase starting with an uppercase letter (e.g., FooBar).
Local variables, methods, and namespaces use lowerCamelCase (e.g., localFooBar).
Non-magic-number global variables that are non-static and not in an anonymous namespace must be lowerCamelCase prefixed with 'g' (e.g., gDontUseGlobalFoos).
Non-magic-number globals that are static or in an anonymous namespace use lowerCamelCase prefixed with 's' (e.g., sMutableStaticGlobal).
Locally visible static variables use lowerCamelCase with 's' prefix (e.g., static std::once_flag sFlag).
Private/protected member variables use 'm' prefix with CamelCase (e.g., mNbFooValues). Public members may omit, but 'm' is encouraged for clarity.
Constants (enums, global constants, static constants, and function-scope magic/literal constants) use uppercase SNAKE_CASE with 'k' prefix (e.g., kDIGIT_NUM).
Function-scope constants that are not magic numbers or literals are named like non-constant variables (e.g., bool const pass = a && b).
If macros are necessary, name them in UPPER_SNAKE_CASE (e.g., FOO_VERSION) and prefer constants over #define.
Use LLVM clang-format; wrap lines at a maximum of 120 columns; use '// clang-format off/on' sparingly with justification.
Use smart pointers for heap allocations; prefer unique_ptr for sole ownership, shared_ptr for shared...
Files:
cpp/tensorrt_llm/kernels/recoverFromRingAtten.cucpp/tensorrt_llm/kernels/trtllmGenKernels/gemm/KernelRunner.cppcpp/tensorrt_llm/kernels/communicationKernels/mnnvlTwoShotAllreduceKernels.cu
**/*.{cpp,cxx,cc,cu,h,hpp,hh,hxx,cuh}
📄 CodeRabbit inference engine (CODING_GUIDELINES.md)
C++ filenames should be lowerCamelCase (first letter lowercase) and must be case-insensitive unique within a compilation target.
Files:
cpp/tensorrt_llm/kernels/recoverFromRingAtten.cucpp/tensorrt_llm/kernels/trtllmGenKernels/gemm/KernelRunner.cppcpp/tensorrt_llm/kernels/communicationKernels/mnnvlTwoShotAllreduceKernels.cu
**/*.{h,hpp,hh,hxx,cpp,cxx,cc,cu,cuh,py}
📄 CodeRabbit inference engine (CODING_GUIDELINES.md)
Use only spaces, no tabs; indent with 4 spaces.
Files:
cpp/tensorrt_llm/kernels/recoverFromRingAtten.cucpp/tensorrt_llm/kernels/trtllmGenKernels/gemm/KernelRunner.cppcpp/tensorrt_llm/kernels/communicationKernels/mnnvlTwoShotAllreduceKernels.cu
**/*.{cpp,cxx,cc,h,hpp,hh,hxx,cu,cuh,py}
📄 CodeRabbit inference engine (CODING_GUIDELINES.md)
Prepend the NVIDIA Apache-2.0 copyright header with current year to the top of all source files (e.g., .cpp, .h, .cu, .py).
Files:
cpp/tensorrt_llm/kernels/recoverFromRingAtten.cucpp/tensorrt_llm/kernels/trtllmGenKernels/gemm/KernelRunner.cppcpp/tensorrt_llm/kernels/communicationKernels/mnnvlTwoShotAllreduceKernels.cu
**/*.{h,hpp,hh,hxx,cpp,cxx,cc}
📄 CodeRabbit inference engine (CODING_GUIDELINES.md)
**/*.{h,hpp,hh,hxx,cpp,cxx,cc}: Prefer anonymous namespaces over 'static' for internal linkage of functions.
All templates (class/function/member/static) must be instantiated at least once; non-POD classes should have private data members.
Files:
cpp/tensorrt_llm/kernels/trtllmGenKernels/gemm/KernelRunner.cpp
🧠 Learnings (1)
📚 Learning: 2025-09-23T15:01:00.070Z
Learnt from: nv-lschneider
PR: NVIDIA/TensorRT-LLM#7910
File: cpp/tensorrt_llm/kernels/nccl_device/config.cu:15-17
Timestamp: 2025-09-23T15:01:00.070Z
Learning: In TensorRT-LLM NCCL device kernels, the <sstream> header is not needed as an explicit include in config.cu because it's provided transitively through other headers. Local compilation testing confirms this works without the explicit include.
Applied to files:
cpp/tensorrt_llm/kernels/communicationKernels/mnnvlTwoShotAllreduceKernels.cu
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🔇 Additional comments (2)
cpp/tensorrt_llm/kernels/recoverFromRingAtten.cu (1)
56-59: LGTM! Appropriate diagnostic suppression.The NVCC pragma correctly suppresses the
static_var_with_dynamic_initwarning for thecuda::barrierstatic initialization. The#ifdef __NVCC_DIAG_PRAGMA_SUPPORT__guard ensures compatibility, and the CCCL documentation reference is helpful.cpp/tensorrt_llm/kernels/communicationKernels/mnnvlTwoShotAllreduceKernels.cu (1)
399-430: LGTM! Architecture guards correctly prevent unused-function warnings.The CUDA architecture guards (SM 900+) around
block_reduce_sumandloadfloat4are correctly scoped. These functions are only called within theRMSNormkernel at lines 510 and 593, which is itself guarded for SM 900+ at line 438. This prevents unused-function warnings when compiling for older architectures.
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PR_Github #20703 [ run ] triggered by Bot |
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PR_Github #20703 [ run ] completed with state |
Summary by CodeRabbit
New Features
Bug Fixes
Refactor
Chores
Description
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Please review the following before submitting your PR:
PR description clearly explains what and why. If using CodeRabbit's summary, please make sure it makes sense.
PR Follows TRT-LLM CODING GUIDELINES to the best of your knowledge.
Test cases are provided for new code paths (see test instructions)
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