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Own CUB histogram dispatch in its CUDA launcher and route label counting through that owner.
The existing
generate_inst_matrixexpands ordinary JSON matrices directly into separate.cufiles, with one concrete owning instantiation per generated translation unit. Launcher declarations stay in headers; host definitions and the corresponding device kernels stay in CUDA sources. Shared lower kernels have their own owners.Prerequisites: #2937.
Diff against this PR’s parent: 16 files, +959/−103 lines.
Validation: native JSON/CMake generation checked on this exact branch and its dependency closure; each generated owner has one owning instantiation. Complete-library builds, device-kernel census, and focused runtime checks are tracked in #2888.
Binary savings: the previous figures measured the grouped-owner implementation and are retired for this revised layout. Per-PR CUDA 12.9 and 13.3 complete-library remeasurement is pending; increased fatbin-container overhead means the old figures must not be carried forward.