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6a9405bf7a
- 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.
Eigen CI infrastructure
Eigen's CI infrastructure uses three stages:
- A
checkformatstage to verify MRs satisfy proper formatting style, as defined byclang-format. - A
buildstage to build the unit-tests. - A
teststage to run the unit-tests.
For merge requests, only a small subset of tests are built/run, and only on a small subset of platforms. This is to reduce our overall testing infrastructure resource usage. In addition, we have nightly jobs that build and run the full suite of tests on most officially supported platforms.