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GPU: Raise CUDA/HIP minimum and remove legacy guards

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- Raise CUDA minimum from 9.0 to 11.4 (sm_70/Volta).
- Raise HIP minimum to GFX906 (Vega 20/MI50) / ROCm 5.6.
- Remove EIGEN_HAS_{CUDA,HIP,GPU}_FP16 guards — FP16 is always available
  on sm_70+ and GFX906+.
- Remove obsolete __HIP_ARCH_HAS_* preprocessor branches.
- C++14 cleanup: remove pre-C++14 workarounds in GPU code.
- Fix NVCC warnings (deprecated register keyword, unreachable code,
  tautological comparisons).
- Fix HIP test execution on gfx1151.
- Update CI configuration for new minimum versions.
This commit is contained in:
Rasmus Munk Larsen
2026-04-09 13:38:04 -07:00
parent e055e4e415
commit 6a9405bf7a
28 changed files with 336 additions and 700 deletions
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3
CMakeLists.txt
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@@ -672,7 +672,7 @@ if (EIGEN_BUILD_TESTING)
endif()
set(EIGEN_CUDA_CXX_FLAGS "" CACHE STRING "Additional flags to pass to the cuda compiler.")
set(EIGEN_CUDA_COMPUTE_ARCH 30 CACHE STRING "The CUDA compute architecture(s) to target when compiling CUDA code")
set(EIGEN_CUDA_COMPUTE_ARCH 70 CACHE STRING "The CUDA compute architecture(s) to target when compiling CUDA code")
option(EIGEN_TEST_SYCL "Add Sycl support." OFF)
if(EIGEN_TEST_SYCL)
@@ -817,4 +817,3 @@ endif()
message(STATUS "")
message(STATUS "Configured Eigen ${EIGEN_VERSION_STRING}")
message(STATUS "")