Cythonize _module.py #1520
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Cythonize _module.py #1520
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Convert Kernel, ObjectCode, and KernelOccupancy to cdef classes with proper .pxd declarations. This phase establishes the Cython structure while maintaining Python driver module usage. Changes: - Rename _module.py to _module.pyx - Create _module.pxd with cdef class declarations - Convert Kernel, ObjectCode, KernelOccupancy to cdef class - Remove _backend dict in favor of direct driver calls - Add _init_py() Python-accessible factory for ObjectCode - Update _program.py and _linker.py to use _init_py() - Fix test to handle cdef class property descriptors Phase 2b will convert driver calls to cydriver with nogil blocks. Phase 2c will add RAII handles to resource_handles.
- Use strong types in .pxd (ObjectCode, KernelOccupancy) - Remove cdef public - attributes now private to C level - Add Kernel.handle property for external access - Add ObjectCode.symbol_mapping property (symmetric with input) - Update _launcher.pyx, _linker.py, tests to use public APIs
- Module globals: _inited, _py_major_ver, _py_minor_ver, _driver_ver, _kernel_ctypes, _paraminfo_supported -> cdef typed - Module functions: _lazy_init, _get_py_major_ver, _get_py_minor_ver, _get_driver_ver, _get_kernel_ctypes, _is_paraminfo_supported, _make_dummy_library_handle -> cdef inline with exception specs - Module constant: _supported_code_type -> cdef tuple - Kernel._get_arguments_info -> cdef tuple Note: KernelAttributes remains a regular Python class due to segfaults when converted to cdef class (likely due to weakref interaction with cdef class properties).
Follow the _MemPoolAttributes pattern: - cdef class with inline cdef attributes (_kernel_weakref, _cache) - _init as @classmethod (not @staticmethod cdef) - _get_cached_attribute and _resolve_device_id use except? -1 - Explicit cast when dereferencing weakref
Extends the RAII handle system to support CUlibrary and CUkernel driver objects used in _module.pyx. This provides automatic lifetime management and proper cleanup for library and kernel handles. Changes: - Add LibraryHandle/KernelHandle types with factory functions - Update Kernel, ObjectCode, KernelOccupancy to use typed handles - Move KernelAttributes cdef block to .pxd for strong typing - Update _launcher.pyx to access kernel handle directly via cdef
Replaces Python-level driver API calls with low-level cydriver calls wrapped in nogil blocks for improved performance. This allows the GIL to be released during CUDA driver operations. Changes: - cuDriverGetVersion, cuKernelGetAttribute, cuKernelGetParamInfo - cuOccupancy* functions (with appropriate GIL handling for callbacks) - cuKernelGetLibrary - Update KernelAttributes._get_cached_attribute to use cydriver types
Andy-Jost
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enhancement
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/ok to test 82d92c9 |
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Summary
Converts
_module.pyto Cython (_module.pyx) for improved performance, adding RAII-based resource handle management forCUkernelandCUlibrarydriver objects.Kernel,ObjectCode,KernelOccupancy, andKernelAttributestocdef classLibraryHandleandKernelHandleto the resource_handles C++ infrastructurecydrivercalls wrapped innogilblocks.pxdfile for cross-modulecimportsupportChanges
_module.py→_module.pyxwithcdef classdefinitions_module.pxdwith typed attribute and method declarations_cpp/resource_handles.{hpp,cpp}with library/kernel handle types_resource_handles.{pxd,pyx}with new handle functions_launcher.pyxto directly access kernel handles viacimport_linker.py,_program.pyto use new factory methodsTest plan
test_module.pytests passtest_program.pytests pass