libcu++ 1.9.0 (CUDA Toolkit 12.0)

libcu++ 1.9.0 (CUDA Toolkit 12.0)

Adds float and double support to cuda::std::atomic and cuda::atomic.
This release also adds workflows for contributors based on Docker to improve testing and coverage.

Supported ABI Versions: 4 (default), 3, and 2.

New Features

• #286: Add atomics for floating point types.
  • Thanks Daniel Jünger for this contribution.
• #284: cuda::proclaim_return_type for use with extended lambda support in NVCC.
• #267: Docker refactor, parameterizes OS and compiler versions.

Issues Fixed

• #280: NVHPC: Disable <nv/target> macro code paths when compiled without -stdpar.
• #282: Prevent usage of cuda::atomic::fetch_max/min for non-integral types.
• #288: Fix shortcut in fetch_min CAS loop.
  • Thanks Daniel Jünger for this contribution.
• #291: Remove usage of find_path to locate cuda/std/detail/__config.
  • Thanks Robert Maynard for this contribution.
• #276: Delete tests for unsupported header <compare>.
• #293: Fix failures in several tests unsupportable by NVRTC.
• #303: Move the emission of atomic errors on unsupported platforms to <atomic>.
• #305: Add workflow to add issues/PRs to Project.
• #314: Remove SM_35 from testing.
• #312: Use escape hook for removal of <ciso646>.
• #310: <atomics> Remove defaulted copy constructor from __cxx_atomic_lock_impl.
• #300: Soundness bugfix for barrier<thread_scope_block> on sm_70.
• #319: Fix ubuntu18 failing in CI due to missing lit prereqs.
• #318: Fix gcc12 issues.
• #320: Use cache_from to speed up builds if local versions exist.
• #304: Fix <chrono> and <atomic> build errors with clang-cuda.
• #324: Also disable tests on windows && pre-sm-70.